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PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001 K-ZZD. OCT. 2001 Printed in Japan
ORDER NO.
CRT2756
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-1450 XM/ES
ServiceManual
DEH-1450/XM/ES
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....8
4. PCB CONNECTION DIAGRAM ................................22
5. ELECTRICAL PARTS LIST ........................................30
6. ADJUSTMENT..........................................................34
7. GENERAL INFORMATION .......................................38
7.1 DIAGNOSIS ........................................................38
7.1.1 DISASSEMBLY .........................................38
7.1.2 CONNECTOR FUNCTION DESCRIPTION.......41
7.2 PARTS .................................................................42
7.2.1 IC................................................................42
7.2.2 DISPLAY....................................................50
7.3 OPERATIONAL FLOW CHART...........................51
8. OPERATIONS AND SPECIFICATIONS.....................52
- This service manual should be used together with the following manual(s):Model No. Order No. Mech. Module Remarks
CX-977 CRT2624 S9 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
DEH-1450B XM/ES
2
DEH-1450,1450B
- CD Player Service Precautions
1. For pickup unit(CXX1480) handling, please refer
to"Disassembly"(see page 38).
During replacement, handling precautions shall be
taken to prevent an electrostatic discharge(protection
by a jumper-solder).
2. During disassembly, be sure to turn the power off
since an internal IC might be destroyed when a con-
nector is plugged or unplugged.
3. Please checking the grating after changing the pickup
unit(see page 35).
4. In this product, because the memory capacity of the
microcomputer is insufficient, the test mode is not
installed. However grating of the pickup unit can be
confirmed.
1. SAFETY INFORMATION
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
14
1
16
10
12
13
15
5
928
7
6
43
11
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repaircomplex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do soand refer the repair to a qualified service technician.
3
DEH-1450,1450B
1 Cord Assy CDE64682 Spring CBH16503 Screw CBA1002
* 4 Polyethylene Bag CEG-1275 Screw CRZ50P090FMC
6 Screw TRZ50P080FMC* 7 Polyethylene Bag CEG-158
8 Handle CNC53959 Bush CNV3930
10 Polyethylene Bag CEG-162
11-1 Owner’s Manual CRD348811-2 Installation Manual CRD3493
12 Carton See Contrast table(2)13 Contain Box See Contrast table(2)14 Protector CHP2421
15 Protector CHP242216 Case Assy CXB3520
Mark No. Description Part No. Mark No. Description Part No.
(1) PACKING SECTION PARTS LIST
NOTE:
- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.
- Screws adjacent to ∇ mark on the product are used for disassembly.
Part No.Mark No. Symbol and Description DEH-1450/XM/ES DEH-1450B/XM/ES
12 Carton CHG4487 CHG449013 Contain Box CHL4487 CHL4490
(2) CONTRAST TABLE
DEH-1450/XM/ES and DEH-1450B/XM/ES are constructed the same except for the following:
- Owner's Manual, Installation ManualModel Part No. Language
DEH-1450/XM/ES CRD3488 English, Spanish, Portuguese(B),DEH-1450B/XM/ES CRD3493 Chinese, Arabic
4
DEH-1450,1450B
A
B
2.2 EXTERIOR
DEH-1450,1450B
5
1 Screw BMZ30P100FMC2 Screw BSZ26P060FMC3 Screw BSZ30P060FMC4 Cord Assy CDE64685 •••••
6 Cable CDE66107 Fuse CEK11368 CD Mechanism Module(S9ANA) CXK55019 Case(10A) CNB2686
10 Holder CNC5704
11 Cushion CNM487012 Insulator CNM762213 Tuner Amp Unit CWM794414 Screw ASZ26P060FMC15 Screw BPZ26P120FMC
16 Screw BSZ26P160FMC17 FM/AM Tuner Unit CWE156318 Holder CNC881519 Pin Jack(CN351) CKB103520 Terminal(CN404) CKF1059
21 Plug(CN901) CKM133022 Connector(CN751) CKS358123 Connector(CN501) CKS383524 Antenna Jack(CN402) CKX105625 Holder CNC8615
26 Holder CNC961927 Insulator CNM694928 Heat Sink CNR158329 Holder Unit CXB668130 Chassis Unit CXB7816
31 Detach Grille Assy See Contrast table(2)32 Screw BPZ20P100FZK33 Button(DETACH) CAC578934 Button(EQ) CAC718635 Button(SELECT) CAC7181
36 Button(VOL+,-) CAC718237 Button(SRC) CAC718738 Button(EJECT) CAC718339 Button(CLOCK) CAC729840 Button(A,LD) CAC7184
41 Button(1-6) CAC718042 Spring CBH221043 Cover CNS672044 Keyboard Unit See Contrast table(2)45 LCD See Contrast table(2)
46 Connector(CN1800) CKS358047 Holder CNC961748 Sheet CNM705749 Lighting Conductor CNV647650 Connector CNV6868
51 Lighting Conductor CNV686952 Rubber CNV690553 Grille Unit See Contrast table(2)54 Button CAC483655 Spring CBH1835
56 Spring CBH220857 Spring CBH236758 Bracket CNC679159 Holder CNC804260 Cover CNM6276
61 Panel CNS672262 Arm CNV469263 Arm CNV472864 Arm CNV557665 Screw IMS20P030FZK
66 Screw ISS26P055FUC67 IC(IC361) TDA738668 Transistor(Q501,910) 2SD239669 Sheet See Contrast table(2)70 Panel CNS6344
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
Part No.Mark No. Symbol and Description DEH-1450/XM/ES DEH-1450B/XM/ES
31 Detach Grille Assy CXB8036 CXB803844 Keyboard Unit CWM7957 CWM795845 LCD CAW1723 CAW168853 Grille Unit CXB8052 CXB805469 Sheet Not used CNM7294
(2) CONTRAST TABLE
DEH-1450/XM/ES and DEH-1450B/XM/ES are constructed the same except for the following:
DEH-1450,1450B
2.3 CD MECHANISM MODULE
6
C
7
DEH-1450,1450B
Mark No. Description Part No. Mark No. Description Part No.
1 Control Unit CWX24812 Connector(CN701) CKS19593 Connector(CN101) CKS34864 Screw BMZ20P025FMC5 Screw BSZ20P040FMC
6 Screw(M2x4) CBA13627 Screw(M2x3) CBA15278 Screw CBA15459 Washer CBF1037
10 Washer CBF1038
11 Washer CBF103912 Washer CBF106013 Spring CBH237814 Spring CBH237915 Spring CBH2514
16 Spring CBH253317 Spring CBH238218 Spring CBH238319 Spring CBH238420 Spring CBH2527
21 Spring CBH238622 Spring CBH253723 Spring CBH239024 Spring CBH239125 Spring CBH2523
26 Spring CBH242627 Spring CBH244428 Spring CBL156129 Spring CBL155330 Shaft CLA3845
31 Roller CLA391032 Frame CNC965433 Lever CNC966434 Lever CNC894935 Arm CNC9661
36 Arm CNC901637 Arm CNC901738 Bracket CNC912339 Frame CNC965640 Belt CNT1086
41 Gear CNV688642 Gear CNV631643 Gear CNV631744 Gear CNV631845 Gear CNV6319
46 Gear CNV632047 Arm CNV632248 Arm CNV632349 Arm CNV632450 Arm CNV6888
51 Arm CNV688952 Guide CNV632753 Arm CNV692454 Guide CNV692155 Rack CNV6923
56 Clamper CNV633157 Arm CNV633258 Guide CNV633359 Cover CNV633460 Arm CNV6335
61 Guide CNV633662 Roller CNV633863 Damper CNV633964 Damper CNV634065 Guide CNV6925
66 Chassis Unit CXB7980* 67 Arm Unit CXB7983
68 Arm Unit CXB798469 Arm Unit CXB798570 Motor Unit(M2) CXB5903
71 Screw Unit CXB590472 Gear Unit CXB807673 Bracket Unit CXB798274 Motor Unit(M1) CXB600775 Arm Unit CXB8504
76 Screw(M2x5) EBA102877 Screw JFZ20P020FMC78 Screw JGZ17P020FZK79 Washer YE15FUC80 Washer YE20FUC
81 Pickup Unit(Service)(P9) CXX148082 Screw IMS26P030FMC83 Guide CNV692284 Roller CNV688785 Spring CBH2509
86 Spring CBH251287 Spring CBH253688 Collar CNV6906
- CD MECHANISM MODULE SECTION PARTS LIST
8
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
VDCONT
Q510
Q511
B.U
ANTENNA CN402
LOCL
Q410
VCC VDD
PC
E2
PC
K
PC
E1
SL
SD
PD
IO
6
76
14
13
48
12
57
2
3
CN501CDL
34
23
79
32
21
35
LOEJ
CONT
11PDIO
TUNER AMP UNIT
VD
CD5VON
IC 3EEPROM
FM/AM TUNER UNIT
28
27
FM/AM 1ST IF 10.7MHzT51 Q51 CF51 CF52 CF53
IC1MIXER, IF AMP, DET.
6
21
18LDET
COMP
2225 10 14 12 15 16 8 13 2 3 4
CF202
VDDVCC
DI/D
O
CE
2
CK
CE
1
SD
BW
SL
FMS
D
NL1
NL2
IC 2 FM MPXAMANT
FMANT
ATT
ATT
AMRF
FMRF
IMG ADJ
RF ADJ
X90110.25MHz
ANT ADJ
LOCL23
LOCH
AMDETMPXREF 41kHz
AM 2ND IF450kHz
19
CR
EQ
11
DG
ND
1
ST
IND
L ch
5R ch
924
NC
FMLO
CL
20177N
C
NC
WC
26 RFGND
CN701Q101
M
LASERDIODE
MONITORDIODE
CLAMPSENSE
DISC SENSE
FOCUS ACT.
SPINDLEMOTOR
MCARRIAGEMOTOR
LOAD/
TRACKING ACT.
LD-
MD
FO+
TO+
15
5
1
4
PICKUP UNIT(SERVICE)(P9)
HOLOGRAM UNIT
IC 401BA5996FM
IC 201TC9495F2
IC 701BA05SFP
+5V REGULATOR
SERVO CONTROL,
DSP,LPF, DAC
CDDRIVER
17DSCSNS
2VD
VD
VDD
11CONT
10LOEJ
14L-OUT
1CD5VON
CN101
TOP
FOP
16SOP
15SOM
17LCOP
18LCOM 22
1
2
LOEJ
78
85L_OUT
79
9MUTE
12FOP
TD/FD
AC,BD
F,E
SD/MD
38RFI
43FEI
4
14TOP
S901HOME
12EJSENSE 8EJ
SENSE
HOME16
LD+ 14 VDD
9LDO
8MDI
IC 101TA2153FN
RFRPIN
FEO
TEO
24
16
14 46 TEI
RF-AMP
CONTROL UNIT
17
2
11
10
14
1
16
A
C
PCE1
PCK
PCE2
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 89
KYDT
DPDT
IC 1800PD6340A
3
4
5
3
4
5
KEY MATRIX
SD
SL
TUNPCE
TUNPCK
TUNPCE2
TUNPDO
LOCL
IN2_L
IN3_L
6
76
14
13
48
12
57
2
3
SYSTEMCONTROLLER
IC 610 (1/2)PE5262A
VSTVCKVDT
B.UVDD
Q913
B.UBACKUP
FL-
FL+
RL-
RL+
ACC
2
1
10
12
9
11
3
ELECTRONIC VOLUME
IC 301PML003AM
SYSTEMCONTROLLER
IC 610(2/2)PE5262A
ASENS64
BSENS63
TELIN38
SYSPW42
MUTE44
KYDT8
DPDT9
RESET60
SWVDD41
Frontout_L10
Rearout_L11
POWER AMP
IC 361TDA7386
14
12
22 4
5
3
21
23
FL
MUTE STBY
RL
B.Ubsens
asens
Q920
Q361 MUTEQ921
KEYBOARD UNIT
CN1800CN751
LCD20
18
Q750
RESETIC 603
S-80834ANY VDD1 2
SY
SP
W
6B.REM
FU
SE
10A
CD5VON
34
23
79
32
21
35
VDCONT
HOME
DSCSNS
LOEJ
CONT
TUNPDI11PDIO
VST/ VCK/ VDT
VDD
VDD
VLCD
56
10
CN901
Q 351
CN351
REAR L CH
Q359
BACK UP
FL–
FL+
RL-
RL+
ACC
GND
B
PCE1
PCK
PCE2
ANTIN52
KYDT
DPDT
SW5V
KEY CONTROLLER LCD DRIVER
2
1
10
12
9
11
3
6
SYSPW
Q910 Q911
B.UVCC
Q912
AN
TP
W
B.REMOTE
IC 901TPD1018F
6 1
RESETIC 603
S-80834ANY1 2
VCC REGULATOR
VDD REGULATOR
B.REM
10
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A-a A-b
A-aA-a A-b A-b
A-b A-b A-a A-a
Large sizeSCH diagram
Guide page
Detailed page
A
CC
ON
TR
OL
UN
IT
B CN1800
FM/A
M T
UN
ER
UN
IT
A
183
183
162
162
272
272
104
104
CS
S10
23 4
.194
304M
Hz
FMLOCL
682
0R0
R791
ANTENNAJACK
For resistors and capacitors in the circuit diagrams, their resistance values orcapacitance values are expressed in codes:
Ex. *Resistors Code Practical value 123 12k ohms 103 10k ohms
*Capacitors Code Practical value 103 0.01µF 101/10 100µF/10V
The > mark found on some component parts indicatesthe importance of the safety factor of the part.Therefore, when replacing, be sure to use parts ofidentical designation.
Symbol indicates a resistor.No differentiation is made between chip resistors anddiscrete resistors.
NOTE :
Symbol indicates a capacitor.No differentiation is made between chip capacitors anddiscrete capacitors.
ELECTRONIC
SYST
FM(1
00%
):-1
9.5d
Bs
AM
(30%
):-3
0dB
s
A-a
11
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 8
A
A TUNER AMP UNIT
CEK1136 >
10A
RR+
RR-
FR+
FR-
FL+
FL-
RL+
RL-
ACC
GND
B.REM
BACK UP
RR
RL
PRE OUT
VOLUME
EM CONTROLLER
MUTE
POWER AMP
VDD REGULATOR
BACK UP SENSE
ACC SENSE
B.REMOTE
VCC REGULATOR
SYS+B REGULATOR
FM(100%):+3.6dBsAM(30%):-6.9dBs
CD:+10.2dBsCD:+9.4dBs
FM(100%):+29.6dBsAM(30%):+19.1dBs
CD:+36.2dBs
A-b
12
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
A-a
A-b
FM/AM TUNER UNIT
183
183
162
162
272
272
CSS1023 4.194304MHz
FMLO
CL
682
0R0
R79
1
AN
TEN
NA
JACK
ELE
CT
RO
NIC
VO
LU
SY
ST
EM
CO
FM(100%):-19.5dBsAM(30%):-30dBs
1
A-a
13
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 8
A-a
A-b
CCONTROL UNIT
BC
N18
00
A
104104
For
resi
sto
rs a
nd
cap
acit
ors
in t
he
circ
uit
dia
gra
ms,
th
eir
resi
stan
ce v
alu
es o
rca
pac
itan
ce v
alu
es a
re e
xpre
ssed
in c
od
es:
Ex.
*R
esis
tors
C
od
e
P
ract
ical
val
ue
1
23
12k
oh
ms
1
03
10k
oh
ms
*C
apac
ito
rs
Co
de
P
ract
ical
val
ue
1
03
0.01
µF
101
/10
10
0µF/
10V
Th
e >
mar
k fo
un
d o
n s
om
e co
mp
on
ent
par
ts in
dic
ates
the
imp
ort
ance
of
the
safe
ty f
acto
r o
f th
e p
art.
Th
eref
ore
, wh
en r
epla
cin
g, b
e su
re t
o u
se p
arts
of
iden
tica
l des
ign
atio
n.
Sym
bo
l in
dic
ates
a r
esis
tor.
No
dif
fere
nti
atio
n is
mad
e b
etw
een
ch
ip r
esis
tors
an
dd
iscr
ete
resi
sto
rs.
NO
TE
: Sym
bo
l in
dic
ates
a c
apac
ito
r.N
o d
iffe
ren
tiat
ion
is m
ade
bet
wee
n c
hip
cap
acit
ors
an
dd
iscr
ete
cap
acit
ors
.
6 752 3 4
A-a
14
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
A-a
A-b
A-b
AT
UN
ER
AM
P U
NIT
RR RLPRE
OU
T
C V
OLU
ME
EM
CO
NT
RO
LLE
R
MU
TE
PO
WE
R A
MP
FM(1
00%
):+3
.6d
Bs
AM
(30%
):-6
.9d
Bs
CD
:+10
.2d
Bs
CD
:+9.
4dB
s
FM(1
00%
):+2
9.6d
Bs
AM
(30%
):+1
9.1d
Bs
CD
:+36
2dB
s
1
15
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 8A-b
A-a
A-b
CE
K11
36 >
10A
RR+
RR-
FR+
FR-
FL+
FL-
RL+
RL-
ACC
GN
D
B.RE
M
BACK
UP
VD
D R
EG
ULA
TO
R
BA
CK
UP
SE
NS
E
AC
C S
EN
SE
B.R
EM
OT
E
VC
C R
EG
ULA
TO
R
SY
S+B
RE
GU
LAT
OR
FM(1
00%
):+2
9.6d
Bs
AM
(30%
):+1
9.1d
Bs
CD
:+36
.2d
Bs
6 752 3 4
16
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
3.3 KEYBOARD UNIT
LCD DRIVER
LCD
B KEYBOARD UNIT
B
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 817
CLOCK
LOC/BSM
DEH-1450/XM/ESSML-310PTCEL1651CAW1723820121
D1702-1708IL1700,1701LCDR1711R1715,1719
DEH-1450B/XM/ESSML-310VTCEL1662CAW1688121181
IL1700,1701:14V 40mA
ACN751
B
18
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
3.4 CD MECHANISM MODULE
C
M1 CXB6007
M2 CXB5903
LOADING/CARRIAGE
SPINDLE
RF AMP
S
ACT/MOTOR DRIVER
5V REGULATOR
CN101
C CONTROL UNIT
PICKUP UNIT(SERVICE)(P9)
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 819C
16.934MHz
SERVO CONTROL/DSP/DAC/LPF
ER
CN701
SWITCHES:CONTROL UNIT S901 : HOME SWITCH.....ON-OFF S902 : CLAMP SWITCH....ON-OFF S903 : DSCSNS SWITCH....ON-OFF S904 : 12EJ SWITCH....ON-OFF S905 : 8EJ SWITCH....ON-OFFThe underlined indicates the switch position.
ACN501
Decimal points for resistorand capacitor fixed valuesare expressed as :2.2→2R20.022→R022
20
DEH-1450,1450B
@ CH1:BCK 2V/div.
During "Play"
1 CH1:DSCSNS 5V/div.2 CH2:CLCONT 5V/div.3 CH3:LOEJ 5V/div.4 CH4:VD 10V/div.
When loading (8 cm CD)
500ms/div.
5 CH1:FD 500mV/div.6 CH2:FOK 5V/div.7 CH3:MD 5V/div.
When setting up "Source On"
500ms/div.
8 CH1:FE 500mV/div.9 CH2:FOON 5V/div.
When setting up "Source On"
500ms/div.5 CH1:FD 500mV/div.6 CH2:FOK 5V/div.7 CH3:MD 5V/div.
Magnified drawing for "time"
100ms/div.
1 CH1:DSCSNS 5V/div.2 CH2:CLCONT 5V/div.3 CH3:LOEJ 5V/div.4 CH4:VD 10V/div.
When loading (12 cm CD)
Ref. :GND
Mode :Normal
Ref. :GND
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Test
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
500ms/div.
0 CH1:TE 500mV/div.8 CH2:FE 500mV/div.
When setting up "Source On"
200ms/div.
1µs/div. # CH1:LRCK 2V/div.$ CH2:DOUT 2V/div.
During "Play"
10µs/div.
7 CH1:MD 500mV/div.
During "Play"
10µs/div. % CH1:RFO 500mV/div.
During "Play"
0.5µs/div. % CH1:RFO 500mV/div.0 CH2:TE 500mV/div.
During "Tracking Open"
2ms/div.
8 CH1:FE 500mV/div.5 CH2:FD 500mV/div.0 CH3:TE 500mV/div.! CH4:TD 500mV/div.
During "Play"
1ms/div.
- Waveforms
Note:1. The encircled numbers denote measuring pointes in the circuit diagram.2. Reference voltage
VREF:2.1V
21
DEH-1450,1450B
% CH1:RFO 1V/div.0 CH2:TE 500mV/div.& CH3:DFCT 5V/div.
During inside/outside search
200ms/div.
% CH1:RFO 1V/div.0 CH2:TE 500mV/div.! CH3:TD 1V/div.
1 Track Jump
500µs/div.
% CH1:RFO 1V/div.0 CH2:TE 1V/div.! CH3:TD 1V/div.
100 Track Jump
5ms/div.
% CH1:RFO 1V/div.0 CH2:TE 1V/div.! CH3:TD 1V/div.
32 Track Jump
5ms/div.5 CH1:FD 1V/div.^ CH2:FOP 2V/div.
With no disk insertedDuring "Focus Close"
200ms/div.
1 CH1:DSCSNS 5V/div.2 CH2:CLCONT 5V/div.3 CH3:LOEJ 5V/div.
When "Eject" (8cm CD)
200ms/div.
) CH1:LOUT 2V/div.⁄ CH2:ROUT 2V/div.
"Play" in 1kHz, 0dB
200µs/div.
* CH1:TEY 500mV/div.( CH2:SD 2V/div.
During inside/outside search
200ms/div. 1 CH1:DSCSNS 5V/div.2 CH2:CLCONT 5V/div.3 CH3:LOEJ 5V/div.
When "Eject" (12 cm CD)
200ms/div.
% CH1:RFO 2V/div.& CH2:DFCT 5V/div.5 CH3:FD 1V/div.! CH4:TD 2V/div.
When reproducing black dots (800µm)
500µs/div.
Ref. :VREF
Mode :Test
Ref. :VREF
Mode :Test
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Normal
Ref. :VREF
Mode :Test
Ref. :VREF
Mode :Test
Ref. :VREF
Mode :Normal
Ref. :GND
Mode :Normal
Ref. :GND
Mode :Normal
Ref. :GND
Mode :Normal
22
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
NOTE FOR PCB DIA-
GRAMS
1. The parts mounted on
this PCB include all nec-
essary parts for several
destination.
For further information
for respective destina-
tions, be sure to check
A
CapacitorConnector
P.C.Board Chip Part
SIDE A
SIDE B
2 3
4
5
6
7
8
9
10
11
12
13
141
15
16
A
A TUNER AMP UNIT
CCN701
CORD ASSY
4. PCB CONNECTION DIAGRAM
4.1 TUNER AMP UNIT
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 823A
1
3
45
6 7
8
2ANTENNA
JACK
B CN1800
SY
FM/A
M T
UN
ER
UN
IT
FRONT
SIDE A
24
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
A
1
3
6
4
1
3
6
4
4
6
3
1
A
A TUNER AMP UNIT
DEH-1450,1450B5 6 7 8
A
B
C
D
5 6 7 825
4
6
3
1
4
6
3
1
4
6
3
1
A
SIDE B
A
26
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
B KEYBOARD UNIT B KEYBOARD UNIT
ACN751
←
←
← ←EJE
CT
AU
DIO
LOU
D
BA
ND
LOC
/BS
M6
54
32
1S
OU
RC
E
VO
L+
VO
L-
CLO
CK
EQ
LCD
4.2 KEYBOARD UNIT
SIDE A
B
SIDE B
27
DEH-1450,1450B
28
DEH-1450,1450B
A
1 2 3 4
B
C
D
1 2 3 4
E
FV
RE
F
HO
ME
12E
J
DS
CS
NS
4.3 CD MECHANISM MODULE
CONTROL UNIT SIDE A
C
C
M2
LOA
DIN
G/C
AR
RIA
GE
MO
TO
R
M1
SP
IND
LE M
OT
OR
PIC
KU
P U
NIT
(SE
RV
ICE
)(P
9)
CN
501
A
DEH-1450,1450B1 2 3 4
A
B
C
D
1 2 3 429
CLA
MP
8EJ
SIDE BCONTROL UNIT
C
C
30
DEH-1450,1450B
5. ELECTRICAL PARTS LIST
NOTES:
- Parts whose parts numbers are omitted are subject to being not supplied.
- The part numbers shown below indicate chip components.
Chip Resistor
RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
Unit Number : CWM7944Unit Name : Tuner Amp Unit
MISCELLANEOUS
IC 301 IC PML003AMIC 361 IC TDA7386IC 603 IC S-80834ANYIC 610 IC PE5262AIC 901 IC TPD1018F
Q 351 Transistor IMH3AQ 359 Transistor DTA124EKQ 361 Transistor DTC124EKQ 410 Transistor 2SC2412KQ 510 Transistor 2SD2396
Q 511 Transistor RN46A1Q 750 Transistor 2SA1037KQ 751 Transistor 2SA1036KQ 753 Transistor DTC114EKQ 909 Transistor RN46A1
Q 910 Transistor 2SD2396Q 911 Transistor 2SB1243Q 912 Transistor DTC114EKQ 913 Transistor 2SD1859Q 920 Transistor IMX1
Q 921 Transistor DTA124EKD 510 Diode HZS9L(B1)D 750 Diode 1SS270D 751 Diode 1SS270D 753 Diode 1SS270
D 754 Diode 1SS270D 759 Diode MA152WAD 910 Diode HZS9L(B3)D 911 Diode HZS6L(B2)D 912 Diode S5688G
D 913 Diode HZS7L(C2)D 914 Diode HZS7L(A1)D 919 Diode S5688GD 920 Diode S5688GD 921 Diode DAN202U
D 923 Diode S5688GD 924 Diode S5688GL 310 Inductor LAU1R0KL 361 Choke Coil 600µH CTH1221L 410 Ferri-Inductor LAU4R7K
L 411 Ferri-Inductor LAU2R2KL 412 Ferri-Inductor LAU2R2KL 617 Ferri-Inductor LAU101KL 618 Ferri-Inductor LAU2R2KL 750 Ferri-Inductor LAU2R2K
X 610 Crystal Resonator 4.194304MHz CSS1023AR 410 Surge Protector DSP-201M-S00B
FM/AM Tuner Unit CWE1563
RESISTORS
R 310 RS1/16S101JR 311 RS1/16S101JR 314 RS1/16S101JR 315 RS1/16S101JR 351 RD1/4PU821J
R 352 RS1/16S821JR 353 RS1/16S223JR 354 RS1/16S223JR 355 RS1/16S0R0JR 361 RS1/16S103J
R 362 RS1/16S103JR 363 RS1/16S331JR 364 RD1/4PU153JR 410 RS1/16S222JR 411 RS1/16S222J
R 413 RS1/16S473JR 414 RS1/16S473JR 415 RS1/16S393JR 417 RS1/16S681JR 418 RS1/16S681J
R 419 RS1/16S681JR 420 RS1/16S103JR 421 RS1/16S681JR 422 RD1/4PU473JR 423 RD1/4PU472J
R 424 RD1/4PU473JR 429 RS1/16S681JR 430 RS1/16S681JR 431 RS1/16S473JR 432 RS1/16S473J
R 437 RS1/16S0R0JR 438 RS1/16S0R0JR 445 RS1/16S272JR 446 RS1/16S272JR 447 RS1/16S162J
R 448 RS1/16S162JR 490 RS1/16S0R0JR 510 RD1/4PU221JR 511 RD1/4PU221JR 512 RD1/4PU472J
R 513 RD1/4PU222JR 516 RS1/16S104JR 517 RD1/4PU222JR 519 RD1/4PU102JR 520 RS1/16S0R0J
R 521 RS1/16S0R0JR 522 RS1/16S0R0JR 523 RS1/16S0R0JR 525 RS1/16S0R0JR 527 RS1/16S0R0J
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
A
31
DEH-1450,1450B
R 531 RD1/4PU222JR 532 RD1/4PU222JR 536 RD1/4PU102JR 537 RS1/16S104JR 538 RS1/16S0R0J
R 612 RS1/16S0R0JR 613 RD1/4PU102JR 614 RS1/16S821JR 615 RS1/16S473JR 616 RS1/16S682J
R 617 RS1/16S473JR 618 RS1/16S223JR 622 RD1/4PU104JR 623 RD1/4PU104JR 625 RS1/16S0R0J
R 712 RD1/4PU104JR 750 RD1/4PU104JR 751 RS1/16S103JR 752 RS1/16S153JR 753 RS1/16S153J
R 754 RS1/16S222JR 755 RD1/4PU222JR 758 RS1/16S102JR 759 RS1/16S222JR 764 RS1/16S0R0J
R 765 RS1/16S1R0JR 767 RS1/16S103JR 769 RS1/16S102JR 774 RS1/16S0R0JR 775 RS1/16S1R0J
R 777 RS1/16S152JR 778 RS1/16S152JR 779 RD1/4PU103JR 791 RS1/16S0R0JR 910 RS1/16S1R0J
R 911 RD1/4PU220JR 912 RD1/4PU132JR 913 RD1/4PU122JR 914 RS1/16S103JR 915 RS1/16S222J
R 916 RD1/4PU153JR 917 RS1/16S104JR 918 RS1/16S104JR 919 RS1/16S104JR 920 RS1/16S473J
R 921 RS1/16S103JR 922 RS1/16S473JR 923 RD1/4PU102JR 924 RS1/16S472JR 927 RS1/16S102J
R 928 RS1/16S473JR 929 RS1/16S0R0JR 930 RS1/16S0R0JR 931 RS1/16S0R0JR 937 RS1/16S152J
R 939 RS1/16S0R0J
CAPACITORS
C 307 CEJQ470M10C 308 CEJQ100M16C 309 CKSRYB104K25C 310 CKSRYB105K6R3C 311 CKSRYB104K25
C 312 CKSRYB104K25C 313 CKSRYB105K6R3C 314 CEJQ4R7M35C 315 CEJQ4R7M35C 316 CKSRYB153K25
C 321 CKSRYB153K25C 324 CCSRCH100D50C 326 CCSRCH100D50C 327 CCSRCH100D50C 329 CCSRCH100D50
C 351 CEJQ2R2M50C 352 CEJQ2R2M50C 361 3300µF/16V CCH1368C 362 CKSRYB104K25C 363 CKSQYB474K16
C 364 CKSQYB474K16C 365 CKSQYB474K16C 366 CKSQYB474K16C 367 CKSQYB474K16C 368 CKSQYB474K16
C 369 CKSQYB474K16C 370 CKSQYB474K16C 371 CEJQ330M10C 372 CEJQ2R2M50C 373 CKSQYB225K10
C 374 CKSQYB225K10C 375 CEJQ100M16C 410 CKSQYB103K25C 412 CKSRYB223K50C 413 CKSRYB102K50
C 414 CEJQ220M10C 415 CKSRYB223K50C 417 CKSRYB472K50C 418 CEJQ101M6R3C 419 CKSRYB473K50
C 424 CKSRYB183K25C 425 CKSRYB183K25C 510 CKSRYB473K50C 511 CKSRYB102K50C 512 CEJQ101M10
C 515 CKSRYB102K50C 516 CKSRYB102K50C 614 CKSRYB473K50C 615 CEJQ2R2M50C 616 CKSRYB104K25
C 617 CCSRCH101J50C 618 CEJQ4R7M35C 619 CKSRYB473K50C 620 CCSRCH150J50C 621 CCSRCH150J50
C 751 CKSRYB104K25C 910 330µF/16V CCH1326C 911 CKSRYB103K50C 912 CEJQ101M16C 913 CEJQ101M10
C 914 CKSRYB473K50C 915 CKSRYB103K50C 916 470µF/16V CCH1331C 918 CKSQYB473K50C 919 CKSRYB103K50
Unit Number : CWM7957(DEH-1450/XM/ES)Unit Name : Keyboard Unit
MISCELLANEOUS
IC 1800 IC PD6340AD 1700 LED NSSW440-9159D 1701 LED NSSW440-9159D 1702 LED SML-310PTD 1703 LED SML-310PT
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
B
32
DEH-1450,1450B
D 1704 LED SML-310PTD 1705 LED SML-310PTD 1706 LED SML-310PTD 1707 LED SML-310PTD 1708 LED SML-310PT
D 1800 Diode MA152WKD 1801 Diode MA152WAX 1800 Ceramic Resonator 4.97MHz CSS1573IL 1700 Lamp 14V 40mA CEL1651IL 1701 Lamp 14V 40mA CEL1651
LCD CAW1723
RESISTORS
R 1700 RS1/16S101JR 1701 RS1/16S101JR 1702 RS1/16S101JR 1703 RS1/16S101JR 1708 RS1/16S151J
R 1709 RS1/16S151JR 1710 RS1/16S151JR 1711 RS1/16S820JR 1712 RS1/16S181JR 1713 RS1/16S181J
R 1714 RS1/16S181JR 1715 RS1/16S121JR 1716 RS1/16S181JR 1717 RS1/16S181JR 1718 RS1/16S181J
R 1719 RS1/16S121JR 1800 RS1/16S222JR 1801 RS1/16S222JR 1802 RS1/16S471JR 1803 RS1/16S471J
R 1804 RS1/16S471JR 1805 RS1/16S471J
CAPACITORS
C 1700 CKSQYF104Z50C 1701 CKSQYF104Z50C 1800 CKSRYB103K50
Unit Number : CWM7958(DEH-1450B/XM/ES)Unit Name : Keyboard Unit
MISCELLANEOUS
IC 1800 IC PD6340AD 1700 LED NSSW440-9159D 1701 LED NSSW440-9159D 1702 LED SML-310VTD 1703 LED SML-310VT
D 1704 LED SML-310VTD 1705 LED SML-310VTD 1706 LED SML-310VTD 1707 LED SML-310VTD 1708 LED SML-310VT
D 1800 Diode MA152WKD 1801 Diode MA152WAX 1800 Ceramic Resonator 4.97MHz CSS1573IL 1700 Lamp 14V 40mA CEL1662IL 1701 Lamp 14V 40mA CEL1662
LCD CAW1688
RESISTORS
R 1700 RS1/16S101JR 1701 RS1/16S101JR 1702 RS1/16S101JR 1703 RS1/16S101JR 1708 RS1/16S151J
R 1709 RS1/16S151JR 1710 RS1/16S151JR 1711 RS1/16S121JR 1712 RS1/16S181JR 1713 RS1/16S181J
R 1714 RS1/16S181JR 1715 RS1/16S181JR 1716 RS1/16S181JR 1717 RS1/16S181JR 1718 RS1/16S181J
R 1719 RS1/16S181JR 1800 RS1/16S222JR 1801 RS1/16S222JR 1802 RS1/16S471JR 1803 RS1/16S471J
R 1804 RS1/16S471JR 1805 RS1/16S471J
CAPACITORS
C 1700 CKSQYF104Z50C 1701 CKSQYF104Z50C 1800 CKSRYB103K50
Unit Number : CWX2481Unit Name : Control Unit
MISCELLANEOUS
IC 101 IC TA2153FNIC 201 IC TC9495F2IC 401 IC BA5996FMIC 701 IC BA05SFPQ 101 Transistor 2SD1664
Q 102 Transistor UMD2NL 201 Inductor CTF1546L 202 Inductor CTF1546X 301 Ceramic Resonator 16.934MHz CSS1525S 901 Spring Switch(HOME) CSN1051
S 902 Spring Switch(CLAMP) CSN1052S 903 Spring Switch(DSCSNS) CSN1051S 904 Spring Switch(12EJ) CSN1052S 905 Spring Switch(8EJ) CSN1051
RESISTORS
R 101 RS1/16S222JR 102 RS1/8S120JR 103 RS1/8S100JR 201 RS1/16S513JR 202 RS1/16S513J
R 203 RS1/16S823JR 204 RS1/16S823JR 206 RS1/16S823JR 208 RS1/16S124JR 209 RS1/16S183J
R 210 RS1/16S153JR 211 RS1/16S103JR 212 RS1/16S103JR 213 RS1/16S124JR 215 RS1/16S0R0J
R 216 RS1/16S471JR 301 RS1/16S333JR 302 RS1/16S332JR 303 RS1/16S332JR 304 RS1/16S514J
R 306 RS1/16S102JR 307 RS1/16S102JR 312 RS1/16S103JR 313 RS1/16S473JR 315 RS1/16S334J
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
B
C
33
DEH-1450,1450B
R 321 RS1/16S331JR 322 RS1/16S0R0JR 323 RS1/16S332JR 401 RS1/16S684JR 402 RS1/16S103J
R 403 RS1/16S103JR 404 RS1/16S183JR 405 RS1/16S123JR 407 RS1/16S622JR 408 RS1/16S622J
R 409 RS1/16S113JR 410 RS1/16S752JR 701 RS1/16S102JR 702 RS1/16S221JR 703 RS1/16S221J
R 704 RS1/16S221JR 705 RS1/16S221JR 706 RS1/16S221JR 707 RS1/16S221JR 708 RS1/16S102J
R 709 RS1/16S102JR 710 RS1/16S102JR 901 RS1/16S104JR 902 RS1/16S473JR 903 RS1/16S273J
CAPACITORS
C 101 CEV470M6R3C 102 CKSRYB102K50C 103 CKSRYB104K16C 104 CKSRYB224K16C 105 CEV470M6R3
C 106 CKSRYB104K16C 107 CKSRYB105K6R3C 201 CKSRYB104K16C 202 CCSRCH560J50C 204 CKSRYB224K16
C 205 CKSRYB224K16C 206 CKSRYB273K25C 207 CKSRYB273K25C 208 CKSRYB104K16C 209 CKSRYB104K16
C 210 CCSRCK2R0C50C 211 CCSRCH220J50C 301 CKSRYB153K25C 302 CKSRYB104K16C 303 CKSRYB103K50
C 304 CKSRYB103K50C 305 CKSRYB104K16C 306 CKSRYB104K16C 307 CKSRYB333K16C 308 CKSRYB104K16
C 309 CKSRYB473K16C 310 CKSRYB473K16C 311 CKSRYB104K16C 312 CKSRYB104K16C 315 CEV220M6R3
C 317 CKSRYB104K16C 318 CKSRYB104K16C 319 CKSRYB104K16C 320 CCSRCH470J50C 325 CKSRYB471K50
C 328 CKSRYB472K50C 329 CKSRYB104K16C 330 CKSRYB104K16C 331 CKSRYB104K16C 401 CKSRYB221K50
C 402 CKSRYB221K50C 403 CKSRYB153K25C 404 CKSRYB103K50C 405 CEV101M10C 702 CKSRYB104K16
C 703 CKSRYB104K16C 801 10µF/10V CCH1349C 802 CEV101M10C 803 CKSRYB224K16
Miscellaneous Parts List
Pickup Unit(Service)(P9) CXX1480M 1 Motor Unit(SPINDLE) CXB6007M 2 Motor Unit(LOADING/CARRIAGE) CXB5903
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
34
DEH-1450,1450B
6. ADJUSTMENT
6.1 CD ADJUSTMENT
1) Precautions• This unit uses a single power supply (+5V) for the reg-
ulator. The signal reference potential, therefore, isconnected to VREF(approx. 2.1V) instead of GND.If VREF and GND are connected to each other by mis-take during adjustments, not only will it be impossi-ble to measure the potential correctly, but the servowill malfunction and a severe shock will be applied tothe pick-up. To avoid this, take special note of the fol-lowing.Do not connect the negative probe of the measuringequipment to VREF and GND together. It is especiallyimportant not to connect the channel 1 negativeprobe of the oscilloscope to VREF with the channel 2negative probe connected to GND.Since the frame of the measuring instrument is usual-ly at the same potential as the negative probe, changethe frame of the measuring instrument to floating sta-tus.If by accident VREF comes in contact with GND,immediately switch the regulator or power OFF.
• Always make sure the regulator is OFF when connect-ing and disconnecting the various filters and wiringrequired for measurements.
• Before proceeding to further adjustments and mea-surements after switching regulator ON, let the playerrun for about one minute to allow the circuits to stabi-lize.
• Since the protective systems in the unit's software arerendered inoperative in test mode, be very careful toavoid mechanical and /or electrical shocks to the sys-tem when making adjustment.
• The RFI and RFO signals are easy to oscillate becauseof a wide band. When observing them, insert a resis-tor of about 1 kΩ to the series.
• This equipment will not guarantee the load ejectionoperation when the mechanical unit is turned upsidedown. In particular, if the ejection operation is incor-rectly performed and recovery is disabled, the recov-ery is enabled by resetting a product or turning ACCoff to on.
2) Test ModeThis mode is used for adjusting the CD mechanismmodule of the device.
• Test mode starting procedureReset while pressing the 4 and 6 keys together.
• Test mode cancellationSwitch ACC, back-up OFF.
• After pressing the EJECT key, do not press any otherkey until the disk is completely ejected.
• If the ] or [ key is pressed while focus search is inprogress, immediately turn the power off (otherwisethe actuator may be damaged due to adhesion of thelenses).
35
DEH-1450,1450B
• Note :The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mecha-nism module is adjusted on the production line to match the CD mechanism module and is thus the best adjustedPU unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, ifthe PU unit must be changed, the grating should be checked using the procedure below.
• Purpose :To check that the grating is within an acceptable range when the PU unit is changed.
• Symptoms of Mal-adjustment :If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to performtrack search operations, or taking a long time for track searching.
• Method :
• Measuring Equipment • Oscilloscope, Two L.P.F.• Measuring Points • E, F, VREF• Disc • ABEX TCD-784• Mode • TEST MODE
• Checking Procedure1. In test mode, load the disc and switch the 5V regulator on.2. The display will change, returning to "81" on the fourth press.3. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase differ-
ence is within 75° . Refer to the photographs supplied to determine the phase angle.4. If the phase difference is determined to be greater than 75° try changing the PU unit to see if there is any
improvement. If, after trying this a number of times, the grating angle does not become less than 75° then themechanism should be judged to be at fault.
• NoteBecause of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may beseen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the aver-age angle.
• HintReloading the disc changes the clamp position and may decrease the "wobble".
100kΩ
390pF
100kΩ
390pF
E
VREF
F
VREF
Xch Ych
L.P.F.
L.P.F.VR
EF
E F
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT
CONTROL UNIT
Oscilloscope
36
DEH-1450,1450B
Grating waveform Ech → Xch 20mV/div, ACFch → Ych 20mV/div, AC
45°
0°
75°
60°
30°
90°
37
DEH-1450,1450B
6.3 ERROR MODE
- Error Messages
If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the
error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the
users and also for facilitating trouble analysis and repair work in servicing.
(1) Basic Indication Method
1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN (min-
utes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO remains
in blank as before.
2) Head unit display examples
Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.
8-digit display 6-digit display 4-digit display
ERROR–xx ERR–xx E–xx
(2) Error Code List
Code Class Displayed error code Description of the code and potential cause(s)
10 Electricity Carriage Home NG CRG can't be moved to inner diameter.
SERVO LSI Com- CRG can't be moved from inner diameter.
munication Error → Failure on home switch or CRG move mechanism.
Communication error between microcomputer and SERVO LSI.
11 Electricity Focus Servo NG Focusing not available.
→ Stains on rear side of disc or excessive vibrations on REWRITABLE.
12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).
Subcode NG → Failure on spindle, stains or damages on disc, or excessive vibrations.
A disc not containing CD-R data is found.
Turned over disc are found, though rarely.
CD signal error.
17 Electricity Setup NG AGC protection doesn't work. Focus can be easily lost.
→ Damages or stains on disc, or excessive vibrations on REWRITABLE.
30 Electricity Search Time Out Failed to reach target address.
→ CRG tracking error or damages on disc.
44 Electricity ALL Skip Skip setting for all track.
(CD-R/RW)
50 Mechanism CD On Mech Error Mechanical error during CD ON.
→ Defective loading motor, mechanical lock and mechanical sensor.
A0 System Power Supply NG Power (VD) is ground faulted.
→ Failure on SW transistor or power supply (failure on connector).
Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).
Unreadable TOC does not constitute an error. An intended operation continues in this case.
Upper digits of an error code are subdivided as shown below:
1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.
38
DEH-1450,1450B
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 DISASSEMBLY
- Removing the Tuner Amp Unit (Fig.2)
Remove the two screws.
Straight the tabs at three locations indicated.
Remove the three screws.
Remove the screw and then remove the Tuner
Amp Unit.
- Removing the Case (not shown)
1. Remove the Case.
- Panel Assy (Fig.1)
Take the two stoppers off the Chassis and then
remove the Panel Assy.
- Removing the CD Mechanism Module (Fig.1)
Remove the four screws and then remove the
CD Mechanism Module.
Fig.1
Fig.2Tuner Amp Unit
CD Mechanism Module
Panel Assy
39
DEH-1450,1450B
- How to hold the Mechanical Unit
1.Hold the top and bottom frame.
2.Do not squeeze top frame's front portion too tight,
because it is fragile.
- How to remove the Top and Bottom Frame
1.When the disk is in "clamp" state, unlock Spring A (6
pieces) and Spring B (2 pieces), and unscrew screws
(4 pieces).
2.Unlock each 1 of pawl at the both side of the frame,
then remove the top frame.
3.Remove the Carriage Mechanical part in such way
that; you remove the mechanical part from 3 pieces
of Damper while slowly pulling up the part.
4.Now, the top frame has been removed, and under
this state, fix the genuine Connector again, and eject
the disk.
(Caution)
When you reassemble the Carriage Mechanical part,
apply a bit of alcohol to Dampers.
- How to remove the Guide Arm Assy
1.Unlock the spring (1 piece) at the right side of the
assembly.
2.Unscrew screws (2 pieces), then remove the Screw
Gear Bracket.
3.Shift the Guide Arm Assy to the left and slowly rotate
it to the upper direction.
4.When the Guide Arm Assy rotates approximately 45
degree, shift the Assy to the right side direction and
remove it.
Top Frame
Bottom Frame
Damper
Spring
Screw Gear Bracket
Guide ArmAssy
CarriageMechanicalPart
Do not squeeze.
40
DEH-1450,1450B
- How to remove the Control Unit
1.Give jumper-solder treatment to the Flexible Wire of
the Pickup unit, then remove the wire from the
Connector.
2.Remove all 4 points of solder-treatment on the Lead
Wire. Also, unscrew the screw(1 piece).
3.Then, Remove the Control unit.
(Caution)
Be careful not to damage SW when you reassemble
the Control Unit into the device.
- How to remove the Loading Arm Assy
1.Unlock the spring (1 piece) and remove the E ring (1
piece) of the Fulcrum Shaft.
2.Shift the arm to the left side direction and unlock pins
(2 pieces).
- How to remove the Pickup Unit
1.Unscrew 2 pieces of screws, then remove the Pulley
Cover.
2.Remove the Feed Screw unit from the pawl of the
Feed Screw Guide (The pawl is located inside the
guide).
3.Remove the belt from the Pulley, then remove the
Pickup unit.
(Caution)
Make sure not to stain the belt with grease when you
fix the belt.
Control Unit
Jumper-Solder
Solder
Loading Arm Assy
Pickup Unit
Pulley Cover
Feed Screw Guide
Belt
Grease ApplicationGrease Application
Grease Application
41
DEH-1450,1450B
7.1.2 CONNECTOR FUNCTION DESCRIPTION
579 13
468 210121416
111315
PRE OUTANTENNA
1. GND 2. BACK UP 3. ACC 4. NC 5. NC 6. B.REM 7. NC 8. NC 9. RL-10. FL-11. RL+12. FL+13. RR-14. FR-15. RR+16. FR+
42
DEH-1450,1450B
7.2 PARTS
7.2.1 IC- Pin Functions(PE5262A)
Pin No. Pin Name I/O Format Function and Operation1 MODEL1 I Model select input
2,3 NC Not used4 AVSS I A/D GND5 ST I FM stereo input6 SD I SD input 7 AVREF1 A/D converter reference voltage8 KYDT I Key data input9 DPDT O C Display data output
10 SDBW I SDBW input11 TUNPDI I PLL IC data input12 TUNPDO O C PLL IC data output13 TUNPCK O C PLL IC clock output14 TUNPCE O C PLL IC chip enable output15 currq O Tuner voltage FIX output16 LOCL O C Local L output17 NC Not used18 fm/AM O C FM/AM power select output19 NC Not used20 FLPILM O C Inside of flap illumination output21 VDCONT O C VD control output22 NC Not used23 CONT O C Servo driver power supply control output24 XCE O C CD LSI chip enable output25 xrst O C CD LSI reset output26 XPCK O C CD LSI clock output
27-30 XPI0-3 I/O C CD LSI data input/output31 CLCONT O C Driver input select output32 HOME I C Home position detector input33 VSS GND34 LOEJ O C CD load motor LOAD/EJECT direction exchange output35 CD5VON O C CD +5V power supply control output
36,37 ROT1-0 I Rotary encoder data input38 TELIN I Telephone mute input39 NC Not used40 ILMPW O C Illumination power supply control output41 swvdd O C Keyboard unit power supply control output42 SYSPW O C System power supply control output43 VST O C Strobe pulse output for electronic volume44 mute O C System mute output45 PEE O C Beep tone output46 LOCH O C Local H output47 NC Not used48 TUNPCE2 O C EEPROM chip enable output49 PCL O C Clock adjustment output50 VCK O C Clock output for electronic volume51 VDT O C Data output for electronic volume52 ANTPW O Antenna output53 EJECTS I Eject key input pin54 DALMON O C Stand-by output
55–59 NC Not used60 reset I Reset input
61,62 NC Not used63 bsens I Back up power sense input64 asens I ACC power sense input65 dsens I Grille detach sense66 ADPW O C A/D converter power supply output67 NC Not used
43
DEH-1450,1450B
Pin No. Pin Name I/O Format Function and Operation68 VDD Power supply69 X2 Crystal oscillator connection pin70 X1 I Crystal oscillator connection pin71 IC(VPP) Connect to GND72 NC Not used73 TESTIN I Test program mode input74 AVDD Positive power supply terminal for analog circuit75 AVREF0 A/D converter reference voltage76 SL I SD level input from tuner77 TEMP I CD temperature sense input78 VDSENS I VD power supply voltage sense input79 DISCSNS I CD DISC sense input80 CSENS I Flap open/close sense input
801
20
21 40
41
60
61
*PE5262A
Output Format MeaningC C MOS outputN N channel open drain output
IC's marked by * are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
44
DEH-1450,1450B
- Pin Functions (PD6340A)Pin No. Pin Name I/O Function and Operation
1-5 SEG4-0 O LCD segment output6-9 COM3-0 O LCD common output 10 VLCD LCD drive power supply
11-14 KST3-0 O Key strobe output15,16 KDT0,1 I Key data input (analogue input)
17 REM I Remote control reception18 DPDT I Display data input19 NC Not used20 KYDT O Key data output21 MODA GND22 X0 Crystal oscillator connection pin23 X1 Crystal oscillator connection pin24 VSS GND
25,26 KDT2,3 I Key data input27 NC Not used28 KST4 O Key strobe output
29-32 NC Not used33-55 SEG35-13 O LCD segment output
56 VDD Power supply57-64 SEG12-5 O LCD segment output
*PD6340A
49
4833
32
17
16 1
64
45
DEH-1450,1450B
- Pin Functions(TA2153FN)Pin No. Pin Name I/O Function and Operation
1 VCC Power supply voltage terminal2 RFGC I RF amplitude adjustment control signal terminal3 GMAD I AGC amplifier frequency characteristic adjustment terminal4 FNI I Main beam amplifier input terminal5 FPI I Main beam amplifier input terminal6 TPI I Sub beam amplifier input terminal7 TNI I Sub beam amplifier input terminal8 MDI O Monitor photodiode amplifier input terminal9 LDO I Laser diode amplifier output terminal
10 SEL I APC circuit ON/OFF signal, LDO terminal control input terminal and bottom and peak detection frequency switching terminals
11 TEB I Tracking error balance adjustment signal input terminal12 2VRO O Reference voltage (2VRO) output terminal13 TEN I Tracking error signal generation amplifier reverse phase input terminal14 TEO O Tracking error signal generation amplifier output terminal15 SBAD O Sub beam addition signal output terminal16 FEO O Focus error signal generation amplifier output terminal17 FEN I Focus error signal generation amplifier reverse phase input terminal18 SEB I RFRP generation circuit mode switching terminal19 VRO O Reference voltage (VREF) output terminal20 RFRP O Signal generation amplifier output terminal for track count21 BTC I Bottom detection time constant adjustment terminal for RFCT signal
generation22 RFCT O RFRP signal center level output terminal23 PKC I Peak detection time constant adjustment signal for RFCT signal generation24 RFRPIN I Signal generation amplifier input terminal for track count25 RFGO O RF signal amplitude adjustment amplifier output terminal26 GVSW I AGC, FE or TE amplifier gain switching terminal27 AGCIN I RF signal amplitude adjustment amplifier input terminal28 RFO O RF signal generation amplifier output terminal29 GND I GND terminal30 RFN2 I RF signal generation amplifier input terminal
115
16 30
TA2153FN
46
DEH-1450,1450B
- Pin Functions(TC9495F2)Pin No. Pin Name I/O Function and Operation
1 TESTO Test mode terminal2 hso O Replay speed flag output terminal3 uhso O Replay speed flag output terminal4 EMPH O Emphasis flag output terminal for sub code Q data5 LRCK O Channel clock (44.1 kHz) output terminal6 VSS Digital ground terminal7 BCK O Bit clock output terminal8 AOUT O Digital audio data output terminal9 DOUT O Digital out output terminal
10 MBOV O Buffer memory over signal output terminal11 IPF O Correction flag output terminal12 SBOK O CRCC decision result output for sub code Q data13 CLCK I/O Clock input/output terminal for sub code P-W data read14 VDD Digital + power supply terminal (5 V)15 VSS Digital ground terminal16 DATA O Sub code P-W data output terminal17 SFSY O Replay-system frame sync signal output terminal18 SBSY O Sub code block sync output terminal19 SPCK O Clock for processor status signal read20 SPDA O Processor status signal output terminal21 COFS O Correction-system frame clock (7.35 kHz) output terminal22 MONIT O LSI internal signal output terminal23 VDD Digital + power supply terminal (5 V)24 TESIO0 I Test input/output terminal25 P2VREF PLL-system only 2VREF terminal26 HSSW O The VREF voltage is reached for double or quad speed.27 ZDET O One-bit DAC zero detection flag output terminal28 PDO O Phase error signal issue between the EFM and PLCK signals29 TMAXS O TMAX detection result output terminal30 TAMX O TMAX detection result output terminal31 LPFN I Reverse input terminal of amplifier for lowpass filter32 LPFO O Output terminal of amplifier for lowpass filter33 PVREF PLL-system only VREF terminal34 VCOREF I VCO center frequency reference level terminal35 VCOF O Filter terminal for VCO36 AVSS Analog-system ground terminal37 SLCO O Output terminal of DAC for data slice level generation38 RFI I RF signal input terminal39 AVDD Analog-system power supply terminal (5 V)40 RFCT I RFRP signal center level input terminal41 RFZI I Input terminal for RFRP signal zero cross42 RFRP I RF ripple signal input terminal43 FEI I Focus error signal input terminal44 SBAD I Sub beam addition signal input terminal45 TSIN I Test input terminal46 TEI I Tracking error input terminal47 TEZI I Input terminal for tracking error or zero cross48 FOO O Focus equalizer output terminal49 TRO O Tracking equalizer output terminal50 VREF Analog reference power supply terminal51 RFGC O RF amplitude adjustment control signal output terminal52 TEBC O Tracking balance control signal output terminal53 FMO O Feed equalizer output terminal54 FVO O Speed error signal or feed search EQ output55 DMO O Disc equalizer output terminal56 2VREF Analog reference power supply terminal57 SEL O APC circuit ON/OFF signal output terminal
47
DEH-1450,1450B
Pin No. Pin Name I/O Function and Operation58-61 FLGA-D O External flag output terminal for internal signal monitor
62 VDD Digital + power supply terminal (5 V)63 VSS Digital ground terminal64 IO0 O RF amplifier gain switching terminal65 IO1 O Not used66 IO2 I HOME detection switch input terminal67 IO3 O FocusDrv and signal output terminal68 dmout I Field equalizer PWM output terminal for IO0 and IO1
Disc equalizer PWM output terminal for IO2 and IO369 ckse I Usually open70 dact I DAC test mode terminal71 TESIN I Test input terminal72 TESIO1 I Test input/output terminal73 VSS Digital ground terminal74 PXI I DPS-system clock oscillator circuit input terminal75 PXO O DPS-system clock oscillator circuit output terminal76 VDD Digital + power supply terminal (5 V)77 XVSS Ground terminal for system clock oscillator circuit78 XI I System clock oscillator circuit input terminal79 XO O System clock oscillator circuit output terminal80 XVDD For system clock oscillator circuit + power supply terminal81 DVSR R channel D/A converting unit power supply terminal82 RO O R channel data forward rotation output terminal83 DVDD D/A converting unit power supply terminal (5 V)84 DVR Reference voltage terminal85 LO O L channel forward rotation output terminal86 DVSL L channel D/A converting unit power supply terminal
87-89 TEST1-3 I Test mode terminal90-93 BUS0-3 I/O Data input/output terminal for microcomputer interface
94 VDD Digital + power supply terminal (5 V)95 VSS Digital ground terminal96 BUCK I Clock terminal for microcomputer interface97 cee I Chip enable signal for microcomputer interface98 TEST4 I Test mode terminal99 tsmod I Test mode terminal
100 rst I Reset signal input terminal
30
3150
51
80
81 100
1
*TC9495F2
48
DEH-1450,1450B
- Pin Functions(BA5996FM)Pin No. Pin Name Function and Operation
1 VR Input pin for reference voltage2 OPIN2(+) Input pin for non-inverting input for CH2 preamplifier3 OPIN2(-) Input pin for inverting input for CH2 preamplifier4 OPOUT2 Output pin for CH2 preamplifier5 OPIN1(+) Input pin for non-inverting input for CH1 preamplifier6 OPIN1(-) Input pin for inverting input from CH1 preamplifier7 OPOUT1 Output pin for CH1 preamplifier8 GND Ground pin9 MUTE Mute control pin
10 POWVCC1 Power supply pin for CH1, CH2, and CH3 at "Power" stage11 VO1(-) Driver CH1 - Negative output12 VO1(+) Driver CH2 - Positive output13 VO2(-) Driver CH2 - Negative output14 VO2(+) Driver CH2 - Positive output15 VO3(+) Driver CH2 - Positive output16 VO3(-) Driver CH2 - Negative output17 VO4(+) Driver CH4 - Positive output18 VO4(-) Driver CH4 - Negative output19 POWVCC2 Power supply pin for CH4 at "Power" stage20 GND Ground pin21 CNT Control pin22 LDIN Loading input23 OPOUTSL Output pin for preamplifier for thread24 OPINSL Input pin for preamplifier for thread25 OPOUT3 CH3 preamplifier output pin26 OPIN3(-) Input pin for inverting input for CH3 preamplifier27 OPIN3(+) Input pin for non-inverting input for CH3 preamplifier28 PREVCC PreVcc
114
15 28
BA5996FM
49
DEH-1450,1450B
No. Symbol I/O Explain1 STIND O stereo "Low" when the FM stereo signals are received.
indicator To be pulled up to the "VDD" at 47kΩ.2 FMSD O FM station "High" when signals are received. To be pulled up to the "VDD" at 47kΩ
detector Meanwhile, 10kΩ should be used when taking diver FIX trigger from hereand "High: 0.9VDD or more" and "Low: 250mV or less".(Should satisfy the diver IC specifications)
3 NL1 O noise level-1 "High" when noise is received. Output for the RDS. GND at 47kΩ //1,800pF.4 NL2 O noise level-2 "High" when noise is received. Output for the RDS. GND at 36kΩ //330pF.5 Rch O R channel FM stereo "R-ch" signal output or AM audio output.
output Add the specified de-emphasis constant. 6 Lch O L channel FM stereo "L-ch" signal output or AM audio output.
output Add the specified de-emphasis constant. 7 WC write control EEPROM write control. Writing permissible at "Low". Normally open. 8 SDBW O SD bandwidth SD bandwidth signal output. For detection of detuning data for the RDS.9 NC Not used
10 VDD power Power supply pin for the digital section.supply DC 5V +/- 0.25V. Be careful about overlapping noise in the logic section.
11 DGND digital ground Grounding for the digital section. 12 CE2 I chip enable-2 EEPROM chip enable. Active a "Low"
To be pulled up to the "VDD" at 47kΩ13 SL I/O signal level Received FM/AM signal level (strength) output.
Connect the specified load resistor and capacitor (10k Ω + 39k Ω //4,700pF) 14 DI/DO I/O data input/ Data input/Data output
data output To be pulled up to the "VDD" at 47kΩ15 CK I clock Clock input To be pulled up to the "VDD" at 47kΩ16 CE1 I chip enable-1 AF·RF chip enable. Active at "High" To be grounded at 47kΩ17 NC Not used18 LDET O lock detector Active at "Low". To be pulled up to the "VDD" at 47kΩ19 CREQ I current request Active at "Low". To be grounded at 47kΩ20 NC Not used21 COMP O composite signal FM composite signal output. r out < 100Ω22 VCC power supply Analog section power supply pin.DC 8.4V +/- 0.3V 23 LOCH I local high FM local high pin. When seeking local high, apply 5V together with "LOCL". 24 FMLOCL I FM local low FM local low pin. When seeking local low, apply 5V to the base of the NPN
transistor with which the specified resistor is being connected to the emitter. Keep it open in case of ordinary marketed models.
25 LOCL I local low FM/AM local low pin. When seeking local low, apply 5V to the base of the NPN transistor. Since this pin is exclusive for AM when the FMLOCL is in use,do not drive it under FM.
26 RFGND RF ground Grounding for the antenna section. 27 FMANT I FM antenna input FM antenna input. 75Ω. Surge absorber (DSP-201M-S00B) is necessary. 28 AMANT I AM antenna input AM antenna input. High impedance.
Connect to the antenna through an L (LAU type) of 4.7µH.To cope with thepower transmission line hums, insert a series circuit consisting of an L(a coil of about 100mH) + R (a resistor of 470 Ω to 2.2kΩ) between the GND.
IC 3EEPROM
28
27
FM/AM 1ST IF 10.7MHzT51 Q51 CF51 CF52 CF53
IC1MIXER, IF AMP, DET.
6
21
18LDET
COMP
2225 10 14 12 15 16 8 13 2 3 4
CF202
VDDVCC
DI/D
O
CE
2
CK
CE
1
SD
BW
SL
FMS
D
NL1
NL2
IC 2 FM MPX
AMANT
FMANT
ATT
ATT
AMRF
FMRF
IMG ADJ
RF ADJ
X90110.25MHz
ANT ADJ
LOCL23
LOCH
AMDETMPXREF 41kHz
AM 2ND IF450kHz
19C
RE
Q11
DG
ND
1
ST
IND
L ch
5R ch
924
NC
FMLO
CL
20177
NC
NC
WC
26 RFGND
- FM/AM Tuner Unit
DEH-1450,1450B
SEG37
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
NC
NC
SEG19
SEG36
COM2B
COM0A
COM2C
COM3B
COM2D
COM1B
COM0B
SEG39
SEG38
COM3A
COM2A
COM1A
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
21
1
47
46
45
44
43
42
41
39
38
50
49
48
40
COM2B
COM0A
COM2C
COM3B
COM2D
COM1B
COM0B
COM3A
COM2A
COM1A
CO
MM
ON
SE
GM
EN
T
7.2.2 DISPLAY
- CAW1723(DEH-1450/XM/ES), CAW1688(DEH-1450B/XM/ES)
50
DEH-1450,1450B
51
7.3 OPERATIONAL FLOW CHART
VDD=5VPin 68
Power ON
BSENS=L
ASENS=L
DSENS=L
bsensPin 63
asensPin 64
dsensPin 65
ADPW←HPin 66
swvdd←LPin 41
Source keys operative
Completes power-on operation.(After that, proceed to each source operation.)
SYSPW←HPin 42
Starts communication with Grille microcomputer.
Source ON
300ms
300ms
In case of the above signal, the communication with Grille microcomputer may fail.If the time interval is not 300msec, the oscillator may be defective.
52
DEH-1450,1450B
8. OPERATIONS AND SPECIFICATIONS
8.1 OPERATIONS
What’s what
1 VOLUME buttonPress to increase or decrease the volume.
2 CD EJECT buttonPress to eject a CD from your built-in CD player.
3 AUDIO buttonPress to select various sound quality controls.
4 CLOCK buttonPress to switch clock display on or off.
5 EQ buttonPress to select various equalizer curves.
6 5/∞/2/3 buttonsPress to do manual seek tuning, fast forward, reverseand track search controls. Also used for controllingfunctions.
7 LOUDNESS buttonPress to switch loudness function on or off.
8 SOURCE buttonThis unit is switched on by selecting a source. Press tocycle through all of the available sources.
9 1–6 (PRESET TUNING) buttonsPress for preset tuning.
0 LOCAL/BSM button
! BAND buttonPress to select among three FM and one AM band.
@ DETACH buttonPress to remove the front panel from the head unit.
1 3
4
5
6
7
8 9 0 ! @
2
53
DEH-1450,1450B
Po
wer
ON
/OFF
Tu
ner
Tu
rnin
g t
he u
nit
on
Pre
ss S
OU
RC
Eto
tu
rn t
he
un
it o
n.
Wh
en y
ou
sel
ect a
so
urc
e th
e u
nit
is tu
rned
on
.
Sele
cti
ng
a s
ou
rce
You
can
sel
ect a
so
urc
e yo
u w
ant t
o li
sten
to. T
o s
wit
ch to
the
bu
ilt-i
n C
D p
laye
r, lo
ad a
dis
c in
this
un
it.
Pre
ss S
OU
RC
Eto
sel
ect
a so
urc
e.P
ress
SO
UR
CE
rep
eate
dly
to s
wit
ch b
etw
een
the
follo
win
g s
ou
rces
:B
uilt
-in
CD
pla
yer—
Tun
er
No
tes
•W
hen
no
dis
c is
set
in th
is p
rod
uct
, bu
ilt-i
nC
D p
laye
r so
urc
e w
ill n
ot c
han
ge.
•W
hen
this
un
it’s
blu
e/w
hit
e le
ad is
co
n-
nec
ted
to th
e ca
r’s
auto
-an
ten
na
rela
yco
ntr
ol t
erm
inal
, th
e ca
r’s
ante
nn
aex
ten
ds
wh
en th
is u
nit
’s s
ou
rce
issw
itch
ed o
n. T
o r
etra
ct th
e an
ten
na,
swit
ch th
e so
urc
e o
ff.
Tu
rnin
g t
he u
nit
off
Pre
ss S
OU
RC
Ean
d h
old
fo
r at
leas
t o
ne
sec-
on
d t
o t
urn
th
e u
nit
off
.
Lis
ten
ing
to
th
e r
ad
io
If y
ou
are
usi
ng
this
un
it in
No
rth
, Cen
tral
or
So
uth
Am
eric
a, r
eset
the
AM
tun
ing
ste
p .
1B
AN
Din
dic
ato
rS
ho
ws
wh
ich
ban
d th
e ra
dio
is tu
ned
to,
AM
or
FM.
2FR
EQ
UE
NC
Yin
dic
ato
rS
ho
ws
to w
hic
h fr
equ
ency
the
tun
er is
tun
ed.
3S
TE
RE
O(
) in
dic
ato
r S
ho
ws
that
the
freq
uen
cy s
elec
ted
isb
ein
g b
road
cast
in s
tere
o.
4P
RE
SE
T N
UM
BE
R in
dic
ato
r S
ho
ws
wh
at p
rese
t has
bee
n s
elec
ted
.
14
32
Bu
ilt-
in C
D p
layer
1P
ress
SO
UR
CE
to s
elec
t th
e tu
ner
.
2U
se V
OLU
ME
to a
dju
st t
he
sou
nd
leve
l.W
hen
yo
u p
ress
VO
LUM
Eu
p/+
, th
e vo
lum
e is
rais
ed a
nd
wh
en p
ress
ed d
ow
n/–
, th
e vo
l-u
me
is lo
wer
ed.
3P
ress
BA
ND
to s
elec
t a
ban
d.
Pre
ss B
AN
Du
nti
l th
e d
esir
ed b
and
is d
is-
pla
yed
, FM
1, F
M2,
FM
3 fo
r FM
or
AM
.
4To
per
form
man
ual
tu
nin
g, p
ress
2o
r 3
wit
h q
uic
k p
ress
es.
Th
e fr
equ
enci
es m
ove
up
or
do
wn
ste
p b
yst
ep.
5To
per
form
see
k tu
nin
g, p
ress
an
d h
old
2o
r 3
for
abo
ut
on
e se
con
d a
nd
rel
ease
.T
he
tun
er w
ill s
can
the
freq
uen
cies
un
til a
bro
adca
st s
tro
ng
en
ou
gh
for
go
od
rec
epti
on
is fo
un
d.
•Yo
u c
an c
ance
l see
k tu
nin
g b
y p
ress
ing
eith
er 2
or
3w
ith
a q
uic
k p
ress
.•
If y
ou
pre
ss a
nd
ho
ld 2
or
3yo
u c
an s
kip
bro
adca
stin
g s
tati
on
s. S
eek
tun
ing
sta
rts
asso
on
as
you
rel
ease
the
bu
tto
ns.
No
te
•W
hen
the
freq
uen
cy s
elec
ted
is b
ein
gb
road
cast
in s
tere
o th
e S
TE
RE
O (
) in
dic
a-to
r w
ill li
gh
t.
Pla
yin
g a
CD
1T
RA
CK
NU
MB
ER
ind
icat
or
Sh
ow
s th
e tr
ack
curr
entl
y p
layi
ng
.
2P
LAY
TIM
Ein
dic
ato
r S
ho
ws
the
elap
sed
pla
yin
g ti
me
of t
he
curr
ent t
rack
.
1In
sert
a C
D in
to t
he
CD
load
ing
slo
t.P
layb
ack
will
au
tom
atic
ally
sta
rt.
CD
load
ing
slo
t
•Yo
u c
an e
ject
a C
D b
y p
ress
ing
CD
EJE
CT.
2A
fter
a C
D h
as b
een
inse
rted
, pre
ssS
OU
RC
Eto
sel
ect
the
bu
ilt-i
n C
D p
laye
r.
3U
se V
OLU
ME
to a
dju
st t
he
sou
nd
leve
l.W
hen
yo
u p
ress
VO
LUM
Eu
p/+
, th
e vo
lum
e is
rais
ed a
nd
wh
en p
ress
ed d
ow
n/–
, th
e vo
l-u
me
is lo
wer
ed.
21
54
DEH-1450,1450B
Ad
justi
ng
in
itia
l sett
ing
Init
ial s
etti
ng
s le
ts y
ou
per
form
init
ial s
et u
po
f dif
fere
nt s
etti
ng
s fo
r th
is u
nit
.
1P
ress
SO
UR
CE
and
ho
ld u
nti
l th
e u
nit
turn
s o
ff.
2P
ress
AU
DIO
and
ho
ld u
nti
lTIM
E(1
2:00
)ap
pea
rs in
th
e d
isp
lay.
Pre
ss A
UD
IOre
pea
ted
ly to
sw
itch
bet
wee
nth
e fo
llow
ing
set
tin
gs:
TIM
E—
FM S
TE
P—
AM
ST
EP
Use
the
follo
win
g in
stru
ctio
ns
to o
per
ate
each
par
ticu
lar
sett
ing
.•
To c
ance
l in
itia
l set
tin
gs,
pre
ss B
AN
D.
•Yo
u c
an a
lso
can
cel i
nit
ial s
etti
ng
s b
yh
old
ing
do
wn
AU
DIO
un
til t
he
un
it tu
rns
off
.
Sett
ing
th
e t
ime
Th
is is
use
d to
set
the
tim
e o
n th
e u
nit
’scl
ock
dis
pla
y.
1P
ress
AU
DIO
to s
elec
t th
e ti
me.
Pre
ss A
UD
IOu
nti
l th
e ti
me
app
ears
in th
ed
isp
lay.
2S
elec
t th
e p
ort
ion
of
the
tim
e d
isp
lay
you
wis
h t
o s
et w
ith
2/3
.P
ress
ing
2/3
will
sel
ect a
po
rtio
n o
f th
e cl
ock
dis
pla
y:H
OU
R—
MIN
UT
E
As
you
sel
ect p
ort
ion
s o
f th
e cl
ock
dis
pla
yth
e p
ort
ion
sel
ecte
d w
ill b
link.
3S
elec
t th
e co
rrec
t ti
me
wit
h 5
/∞.
Pre
ssin
g 5
will
incr
ease
the
sele
cted
ho
ur
or
min
ute
. Pre
ssin
g ∞
will
dec
reas
e th
ese
lect
ed h
ou
r o
r m
inu
te.
Init
ial S
ett
ing
sIn
itia
l S
ett
ing
s
Sett
ing
th
e F
M t
un
ing
ste
p
Th
e tu
nin
g s
tep
em
plo
yed
by
See
k Tu
nin
g in
the
FM m
od
e ca
n b
e sw
itch
ed b
etw
een
100
kHz
(pre
set a
t th
e fa
cto
ry) a
nd
50
kHz.
1P
ress
AU
DIO
to s
elec
t FM
ST
EP.
Pre
ss A
UD
IO r
epea
ted
ly u
nti
l FM
100
ap
pea
rsin
the
dis
pla
y.
2S
elec
t th
e FM
tu
nin
g s
tep
wit
h 2
/3.
No
te
•If
see
k tu
nin
g is
per
form
ed in
50
kHz
step
s, s
tati
on
s m
ay b
e tu
ned
in im
pre
-ci
sely
. Tu
ne
in th
e st
atio
ns
wit
h m
anu
altu
nin
g o
r u
se s
eek
tun
ing
ag
ain
.
Sett
ing
th
e A
M t
un
ing
ste
p
Th
e A
M tu
nin
g s
tep
can
be
swit
ched
bet
wee
n 9
kH
z, th
e p
rese
t ste
p, a
nd
10
kHz.
Wh
en u
sin
g th
e tu
ner
in N
ort
h, C
entr
al o
rS
ou
th A
mer
ica,
res
et th
e tu
nin
g s
tep
fro
m 9
kHz
(531
– 1
,602
kH
z al
low
able
) to
10
kHz
(530
– 1
,640
kH
z al
low
able
).
1P
ress
AU
DIO
to s
elec
t A
M S
TE
P.
Pre
ss A
UD
IO r
epea
ted
ly u
nti
l AM
9 a
pp
ears
inth
e d
isp
lay.
2S
elec
t th
e A
M t
un
ing
ste
p w
ith
2/3
.P
ress
ing
2/3
will
sw
itch
the
AM
tun
ing
ste
pb
etw
een
9 k
Hz
and
10
kHz.
Th
e se
lect
ed A
Mtu
nin
g s
tep
will
ap
pea
r in
the
dis
pla
y.
Sett
ing
th
e t
ime d
isp
lay o
n o
r
off
You
can
turn
the
tim
e d
isp
lay
on
eve
n w
hen
the
sou
rces
are
off
.
Pre
ss C
LOC
Kto
sel
ect
the
tim
e d
isp
lay.
Eac
h p
ress
of C
LOC
Ktu
rns
tim
e d
isp
lay
on
or
off
.•
Th
e ti
me
dis
pla
y d
isap
pea
rs te
mp
ora
rily
wh
en y
ou
per
form
oth
er o
per
atio
ns,
bu
t th
eti
me
ind
icat
ion
is d
isp
laye
d a
gai
n a
fter
25
seco
nd
s.
55
DEH-1450,1450B
Au
dio
Ad
justm
en
ts
Intr
od
ucti
on
of
au
dio
ad
just-
men
ts
1A
UD
IOd
isp
lay
Sh
ow
s th
e au
dio
ad
just
men
ts s
tatu
s.
2LO
UD
ind
icat
or
Ap
pea
rs in
the
dis
pla
y w
hen
lou
dn
ess
istu
rned
on
.
Pre
ss A
UD
IOto
dis
pla
y th
e au
dio
fu
nct
ion
nam
es.
Pre
ss A
UD
IO r
epea
ted
ly to
sw
itch
bet
wee
nth
e fo
llow
ing
au
dio
fun
ctio
ns:
FAD
ER
(bal
ance
ad
just
men
t)—
EQ
(eq
ual
izer
)—LO
UD
(lo
ud
nes
s)—
FIE
(fro
nt
imag
e en
han
cer)
—S
LA (s
ou
rce
leve
l ad
just
-m
ent)
•W
hen
sel
ecti
ng
the
FMtu
ner
as
the
sou
rce,
yo
u c
ann
ot s
wit
ch to
SLA
.•
To r
etu
rn to
the
dis
pla
y o
f eac
h s
ou
rce,
pre
ss B
AN
D.
No
te
•If
yo
u d
o n
ot o
per
ate
the
aud
io fu
nct
ion
wit
hin
ab
ou
t 30
seco
nd
s, th
e d
isp
lay
isau
tom
atic
ally
ret
urn
ed to
the
sou
rce
dis
-p
lay.
Usin
g b
ala
nce a
dju
stm
en
t
You
can
sel
ect a
fad
er/b
alan
ce s
etti
ng
that
pro
vid
es a
n id
eal l
iste
nin
g e
nvi
ron
men
t in
all o
ccu
pie
d s
eats
.
1P
ress
AU
DIO
to s
elec
t FA
DE
R.
Pre
ss A
UD
IO u
nti
l FA
DE
Rap
pea
rs in
the
dis
-p
lay.
•If
the
bal
ance
set
tin
g h
as b
een
pre
vio
usl
yad
just
ed, B
AL
will
be
dis
pla
yed
.
2P
ress
5o
r ∞
to a
dju
st f
ron
t/re
ar s
pea
ker
bal
ance
.E
ach
pre
ss o
f 5o
r ∞
mo
ves
the
fro
nt/
rear
spea
ker
bal
ance
tow
ard
s th
e fr
on
t or
the
rear
. •
F15
–R
15is
dis
pla
yed
as
the
fro
nt/
rear
spea
ker
bal
ance
mo
ves
fro
m fr
on
t to
rea
r.•
0is
the
pro
per
set
tin
g w
hen
on
ly tw
osp
eake
rs a
re u
sed
.
3P
ress
2o
r 3
to a
dju
st le
ft/r
igh
t sp
eake
rb
alan
ce.
Wh
en y
ou
pre
ss 2
or
3, B
AL:
0is
dis
pla
yed
.E
ach
pre
ss o
f 2o
r 3
mo
ves
the
left
/rig
ht
spea
ker
bal
ance
tow
ard
s th
e le
ft o
r th
eri
gh
t.
•B
AL:
L9–
BA
L:R
9is
dis
pla
yed
as
the
left
/rig
ht s
pea
ker
bal
ance
mo
ves
fro
m le
ft to
rig
ht.
12
Usin
g t
he e
qu
alizer
Th
e eq
ual
izer
lets
yo
u a
dju
st th
e eq
ual
iza-
tio
n to
mat
ch c
ar in
teri
or
aco
ust
ic c
har
acte
r-is
tics
as
des
ired
.
Rec
allin
g e
qu
aliz
er c
urv
es
Th
ere
are
six
sto
red
eq
ual
izer
cu
rves
wh
ich
you
can
eas
ily r
ecal
l at a
ny
tim
e. H
ere
is a
list o
f th
e eq
ual
izer
cu
rves
:
Dis
play
Equa
lizer
cur
ve
SB
AS
SS
up
er b
ass
PW
RFL
Po
wer
ful
NT
RL
Nat
ura
l
VO
CA
LV
oca
l
CS
TM
Cu
sto
m
FLA
TFl
at
•C
ST
M is
an
ad
just
ed e
qu
aliz
er c
urv
e th
atyo
u c
reat
e.•
Wh
en F
LAT
is s
elec
ted
no
su
pp
lem
ent o
rco
rrec
tio
n is
mad
e to
the
sou
nd
. Th
is is
use
-fu
l to
ch
eck
the
effe
ct o
f th
e eq
ual
izer
cu
rves
by
swit
chin
g a
lter
nat
ivel
y b
etw
een
FLA
T a
nd
a se
t eq
ual
izer
cu
rve.
Pre
ss E
Qto
sel
ect
the
equ
aliz
er.
•If
the
equ
aliz
er h
as b
een
pre
vio
usl
y se
t to
an e
qu
aliz
er c
urv
e o
ther
than
PW
RFL
then
the
titl
e o
f th
at p
revi
ou
sly
sele
cted
eq
ual
izer
curv
e w
ill b
e d
isp
laye
d, s
uch
as
SB
AS
S,
NT
RL,
VO
CA
L, C
ST
M, o
rFL
AT.
Ad
just
ing
eq
ual
izer
cu
rves
You
can
ad
just
the
curr
entl
y se
lect
ed e
qu
al-
izer
cu
rve
sett
ing
as
des
ired
. Ad
just
edeq
ual
izer
cu
rve
sett
ing
s ar
e m
emo
rize
d in
CS
TM
.
1P
ress
AU
DIO
to s
elec
t th
e eq
ual
izer
mo
de.
Pre
ss A
UD
IOu
nti
l EQ
ap
pea
rs in
the
dis
pla
y.
2S
elec
t th
e b
and
yo
u w
ant
to a
dju
st w
ith
2/3
.L
(lo
w) —
M (m
id) —
H (h
igh
)
3P
ress
5o
r ∞
to a
dju
st t
he
equ
aliz
ercu
rve.
Eac
h p
ress
of 5
or
∞in
crea
ses
or
dec
reas
esth
e eq
ual
izer
cu
rve
resp
ecti
vely
. •
+6–
–6is
dis
pla
yed
as
the
equ
aliz
er c
urv
eis
incr
ease
d o
r d
ecre
ased
.•
Th
e ac
tual
ran
ge
of t
he
adju
stm
ents
are
dif
fere
nt d
epen
din
g o
n w
hic
h e
qu
aliz
ercu
rve
is s
elec
ted
.
No
te
•If
yo
u m
ake
adju
stm
ents
wh
en a
cu
rve
oth
er th
an C
ST
Mis
sel
ecte
d, t
he
new
lyad
just
ed c
urv
e w
ill r
epla
ce th
e p
revi
ou
scu
rve.
Th
en a
new
cu
rve
wit
h C
ST
M
app
ears
on
the
dis
pla
y w
hile
sel
ecti
ng
the
equ
aliz
er c
urv
e.
DEH-1450,1450B
56
+ ≠+ ≠
+ ≠+ ≠+ ≠
+ ≠
V23
.io
let
12.
25.
With
a2
spea
ker
syst
em,d
ono
tco
nnec
tany
thin
gto
the
spea
ker
lead
sth
atar
eno
tcon
nect
edto
spea
kers
.
r12
.R
easp
eake
r
16.
Rig
ht
Rea
rsp
eake
r
24.
Vio
let/b
lack
20.
Gra
y/bl
ack
14.
Fron
tspe
aker
19.
Gra
y17
.W
hite
18.
Whi
te/b
lack
21.
Gre
en
22.
Gre
en/b
lack
15.
Left14
.Fr
onts
peak
er
12.
Rea
rsp
eake
r12
.R
ear
spea
ker
13.
Perf
orm
thes
eco
nnec
tions
whe
nus
ing
adi
ffer
enta
mp
(sol
dse
para
tely
).
8.Sy
stem
rem
ote
cont
rol
5.C
onne
ctin
gco
rds
with
RC
Api
npl
ugs
(sol
dse
para
tely
)
7.Po
wer
amp
(sol
dse
para
tely
)
4.Fu
se
6.B
lue/
whi
teTo
syst
emco
ntro
lter
min
alof
the
pow
eram
por
Aut
o-an
tenn
are
lay
cont
rolt
erm
inal
(max
.300
mA
12V
DC
).
1.T
his
Prod
uct
2.R
ear
outp
ut
3.A
nten
naja
ck
9.Y
ello
wTo
term
inal
alw
ays
supp
lied
with
pow
erre
gard
less
ofig
nitio
nsw
itch
posi
tion.
10.
Red
Toel
ectr
icte
rmin
alco
ntro
lled
byig
nitio
nsw
itch
(12
VD
C)
ON
/OFF
.
11.
Bla
ck(g
roun
d)To
vehi
cle
(met
al)
body
.
57
DEH-1450,1450B
8.2 SPECIFICATIONS
GeneralPower source .................. 14.4 V DC (10.8 – 15.1 V
allowable)Grounding system .......... Negative typeMax. current consumption......................................... 10.0 A
Backup current ................ 3 mADimensions (W × H × D):
(DIN)Chassis .............. 178 × 50 × 157 mmNose .................. 188 × 58 × 19 mm
(D)Chassis .............. 178 × 50 × 162 mmNose .................. 170 × 48 × 14 mm
Weight ............................. 1.3 kg
AudioContinuous power output is 20 W per channel min.into 4 ohms, both channels driven 50 to 15,000 Hzwith no more than 5% THD.Maximum power output 45 W × 4Load impedance ............. 4 Ω (4 – 8 Ω allowable)Preout max output level/output impedance......................................... 2.2 V/1 kΩ
Equalizer (3-Band Equalizer):(LOW) ....................... Level: ±12 dB(MID) ........................ Level: ±12 dB(HIGH) ...................... Level: ±12 dB
Loudness contour (LOW) ....................... +3.5 dB (100 Hz),
+3 dB (10 kHz)(MID) ........................ +10 dB (100 Hz),
+6.5 dB (10 kHz)(HIGH) ...................... +11 dB (100 Hz),
+11 dB (10 kHz)(volume : –30 dB)
CD playerSystem ............................ Compact disc audio
systemUsable discs .................... Compact discSignal format:
Sampling frequency 44.1 kHzNumber of quantization bits.................................. 16; linear
Frequency characteristics......................................... 5 – 20,000 Hz (±1 dB)
Signal-to-noise ratio ....... 94 dB (1 kHz) (IEC-A network)
Dynamic range ................ 92 dB (1 kHz)Number of channels ....... 2 (stereo)
FM tunerFrequency range ............. 87.5 – 108.0 MHzUsable sensitivity ........... 9 dBf (0.8 µV/75 Ω, mono,
S/N: 30 dB)50 dB quieting sensitivity .. 15 dBf (1.5 µV/75 Ω,
mono)Signal-to-noise ratio ....... 70 dB (IEC-A network)Distortion ........................ 0.3% (at 65 dBf, 1 kHz,
stereo)Frequency response ....... 30 – 15,000 Hz (±3 dB)Stereo separation ........... 40 dB (at 65 dBf, 1 kHz)
AM tunerFrequency range ............. 531 – 1,602 kHz (9 kHz)
530 – 1,640 kHz (10 kHz)Usable sensitivity ........... 18 µV (S/N: 20 dB)Selectivity ....................... 50 dB (±9 kHz)
50 dB (±10 kHz)
Note
• Specifications and the design are subject topossible modifications without notice dueto improvements.
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001 K-ZZD. NOV. 2001 Printed in Japan
ORDER NO.
CRT2794
ServiceManual
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-1450 XR/ES
- This service manual should be used together with the manual(s) listed below.
For the parts numbers, adjustments, etc. which are not shown in this manual,
refer to the following manual(s).Model No. Order No. Mech. Module Remarks
DEH-1450/XM/ES CRT2756
CX-977 CRT2624 S9 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
EXPLODED VIEWS AND PARTS LISTPACKING(Page 2)- PACKING SECTION PARTS LIST * : Non spare part
Part No.Mark No. Symbol and Description DEH-1450/XM/ES DEH-1450/XR/ES
12 Carton CHG4487 HHG031313 Contain Box CHL4487 HHG031314 Protector CHP2421 HHP210115 Protector CHP2422 HHP210217 Accessory Assy Not used HEA0052
175
928
7
64 3
DEH-1450
EXTERIOR(Page 4)- EXTERIOR SECTION PARTS LIST
Part No.Mark No. Symbol and Description DEH-1450/XM/ES DEH-1450/XR/ES
13 Tuner Amp Unit CWM7944 HWM006929 Holder Unit CXB6681 CNC8659(Holder)31 Detach Grille Assy CXB8036 HXB004544 Keyboard Unit CWM7957 HWM0070
Recommended