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© 2002-1 PRINTED IN JAPANB51-7882-00 (N) 1089
CASSETTE RECEIVER
KRC-2902YA/GSERVICE MANUAL
45Wx4HIGH POWER
KRC-2902
LOUD
PWROFF
AMEAUTO
CLK
SRC
AUD
T. CALL
MENU
WIDE BAND
REW PR
FFOG
Lever(D10-3031-04)x2
Plastic cabinet assy(A02-1486-13)
Mounting hardware assy(J21-9491-13)
DC cord(E30-4790-05)
Antenna adaptor(T90-0523-05)
Escutcheon(B07-2124-02)
Knob (ATT)(K25-1388-03)
Cassette lid(A53-1638-13)
Panel assy(A64-2520-02)
KR
C-2902YA
/G
2
BLOCK DIAGRAM
IC1
KEY
PAN 5V
MUTE
B.U. DET. B.U.
ACC
POWER IC
EQ. AMP.
CH ISO AMPNC/MPX/E-VOL.
FRONT Lch
FRONT Rch
REAR Lch
REAR Rch
J2
LCD DRIVER
LCD
MAIN
TAPE MECHA.
IC5
IC2 IC4, Q151
IC3,Q150
SP OUT
PAN IN SW
ACC DET.
P-CONT.
J2
IC1
FM+B
Q200,201
AM+B
Q202,203
AM BPF
FM BPF
Q320
Q50
Q350-353
Q53
SW 5V
Q54-57
COM+B
Q58-61
ILLUMI.
B.U. 5V
Q51,52
SYSTEM u-COM
RST SW
Q301
MOTOR SW
RST
Q260,261
ED1 Q1
FM ANT
AM ANT
RF GND
FM+B
AM+B
OSC GND
OSC GND
OSC GND
VT
PLL +B
IFC OUT
SDA
SCL
DIG GND
IF1+B
IF1 GND
S-METER
IF2 GND
SD
FM+B
SW5V
ACC DET
B.U. DET
SCL
MUTE
SDA
P CON
PAN
EL
HO
LD
L C
LK
L D
ATA
S
L D
ATA
L
FW
D/R
EV
MO
TOR
Rch
COM
Lch
MP IN
AM
MPX
OUT RR
OUT LR
OUT RFLEVEL
SCL
SDA
OUT LF
STBY
MUTE
Rch
Lch
T-MUTE
FWD
REV
B.U.5V
B.U.
8V B.U.
S M
UT
E
4
65
B.U.5V
AM+B
VDD 5V
PAC
K IN
L R
ES
ANT CON
BEEP
SVR
AMP. STBY
SVR
AC GND (BEEP)
Rch
Lch
8V
RF GND
OSC GND
IF2 +B
AUDIO OUT
8V
S-METER
SD
PLL CLK
PLL DATA
PLAYHEAD
R
L
55.6mV
B.U.5VSW5V
8V
B.U.5V
AM: 170mVFM: 400mV
TAPEPACK IN
(FF/REW)
AMP. MUTE
FF
/RE
W
B.U.5V
ILLUMI.
(X16- )
(X14- )
M
A1
5V
D200
P-CONT./ANT-CONT.
KRC-2902YA/G
3
SYNTHESIZER UNIT (X14-6872-73)
COMPONENTS DESCRIPTION
Ref.No. Function OperationIC1 SYSTEM µ-COM Controls the unit.
IC2 E -VOLUME Controls the volume and selects source.
IC3 M UTE LOGIC Controls the mute output.
IC4 POWER AMPLIFIER For the speaker output.
IC5 EQUALIZER AMPLIFIER For the cassette tape's signal.
IC6 RESET Resets the power.
Q49 A CC DETECTION SW Outputs "H" during the ACC off.
Q50 BACK-UP DETECTION SW Outputs "H" when the back-up voltage is under 9.2V.
Q51,52 BACK-UP 5V DRIVER Works when back-up current exists.
Q53 P.ON 5V SW Works during the power on.
Q54,55 8V SW Works during the power on.
Q56,57 8V DRIVER Works during the power on.
Q58,59 ILLUMI +B SW Works during the power on.
Q60,61 ILLUMI +B DRIVER Works during the power on.
Q150 E-VOL MUTE SW Works when the back-up current is detected or the changer mute works or system µ-com mute works.
Q151 SVR FORCED DISCHARGE SW Works when the amplifier mute works.
Q201 FM +B SW Works during FM mode.
Q203 AM +B SW Works during AM mode.
Q260 MOTOR +B SW Works during the tape mode.
Q261 MOTOR +B DRIVER Works when Q206 works.
Q301 CD-CH RESET SW Works when the power is reset and the reset SW works.
Q320 PANEL 5V SW Works when the back-up current exists and the panel is attached on the unit.
Q350 P.CON DRIVER SW Does not work during the power off and the ALL OFF.
Q351 P.CON PROTECTION SW Works when the P.CON is short-circuited on the GND.
Q352 P.CON PROTECTION INHIBIT SW Inhibits the protection SW in a moment during the P.CON on.
Q353 P.CON DRIVER SW Does not work during the power off and the ALL OFF.
KRC-2902YA/G
4
µ-COM (IC1 : X14-)Pin No. Pin name I/O Description Processing Operation
1 PANEL I Panel detection. "L" : Panel exists.
2 L CE O LCD driver chip enable. -
3 L RES O LCD driver reset. -
4 AVSS - GND. -
5 R DATA I RDS data. -
6 R QUAL I RDS receiving. -
7 AVREF 1 - Reference voltage. -
8 I C2 SEL 1 I Selector. "L" : Normally.
9 I C2 SEL 0 I Selector. "L" : Normally.
10 - - - -
11 L DATA L I LCD driver communication data. -
12 L DATA S O LCD driver communication data. -
13 L CLK O LCD driver communication clock. -
14,15 - - - -
16 DATA C I Changer communication data. -
17 DATA H O Changer communication data. -
18 CH CLK I Changer communication clock. -
19-26 - - - -
27 MOTOR O Cassette tape motor SW. -
28 FF/REW I Cassette tape FF/REW detection. "L" : FF or REW works.
29-31 - - - -
32 SD I Signal detection. "H":Signal exists. "L" : Signal does not exist.
33 VSS 1 - GND. -
34 - - - -
35 PLL CLK O Front-end communication clock. -
36 PLL DATA I/O Front-end communication data. -
37 AM +A O AM power supply SW. -
38 FM +B O FM power supply SW. -
39 IC2 DATA I/O E-volume communication data. -
40 IC2 CLK O E-volume communication clock. -
41 AFC O FM noise detection /Time constant SW. -
42 MUTE O Mute control. -
43 AMP MUTE O Power amplifier mute. -
44 - - - -
45 CH CNT O Changer control. -
46 REQ H O Changer request. -
47 - - - -
48 SVR O SVR control. -
MICROCOMPUTER'S TERMINAL DESCRIPTION
KRC-2902YA/G
5
Pin No. Pin name I/O Description Processing Operation49 AMP STBY O Power amplifier stand-by. -
50 BEEP O Buzzer signal output. -
51,52 - - - -
53 P.CONT O Power control SW. -
54 ACC DET I ACC detection. -
55 B.U.DET I Back-up detection. -
56 P.ON O Power SW. -
57 ILLUMI O Illumination SW. -
58 FWD/REV I Cassette mechanism FWD/REV detection. -
59 - - - -
60 RESET I System reset signal input. -
61 SEL 1 I Destination SW. -
62 R CLK I RDS clock. -
63 REQ C I Changer request. -
64 PACK IN I Cassette tape pack-in detection. -
65 KEY-REQ I Key signal input detection. -
66 SEL 0 I Destination SW. -
67 VSS 0 - GND. -
68 VDD 1 - 5V power supply. -
69 X2 - Main system clock. -
70 X1 I Main system clock. -
71 IC - GND. -
72 - - - -
73 XT1 - 5V power supply. -
74 VDD 0 - 5V power supply. -
75 AVREF 0 I A/D converter reference voltage. -
76 S METER I S-meter detection. "H" : S-meter exists. "L" : S-meter does not exist.
77 PHONE I -Navigation mute : 2.5V or more.
Telephone mute : 1V or less.
78 NOISE I FM noise detection. -
79 AV CONT O A/D converter reference voltage. -
80 - - - -
MICROCOMPUTER'S TERMINAL DESCRIPTION
KRC-2902YA/G
6
TEST MODE / ADJUSTMENT
(2-LINE TAPE)
B
A
B
A
(FWD)
(RVS)
HEIGHT(FWD)
HEIGHT/AZIMUTH(FWD)
HEIGHT/AZIMUTH(RVS)
TAPE SPEED
HEIGHT(RVS)
F ''
F
R
R
1. How to enter the test mode• Reset the unit while holding the "FM" key and preset "6" key.• All indication segments go ON at the beginning of the test
mode.
2. How to release the test mode• Simply reset the unit.• (NOTE) The test mode is not canceled by ACC OFF, power
OFF, momentary power down or the panel off.
3. Audio adjustment• Set the volume level to -10dB (which is shown as "30" on the
display).• Loudness OFF.• The BASS/TREBLE and BALANCE/FADER can be set to
the full-boost/full-cut and full-front/full-rear each by pressingthe "Track UP" / "Track DOWN" keys.
• Sound coordination doesn't appear for the feed.
TEST MODE
ADJUSTMENT
Head Angle AdjustmentHead height alignment procedure
• During FWD transport adjust screws F and F' so that line Aof 2-LINE TAPE passes trough the center of the head shieldplate (core center area)
• During RVS transport adjust screws R and R' so that line Bof 2-LINE TAPE passes trough the center of the head shieldplate core (center area)
• After the alignment above, reverse the transport directionand check the FWD alignment again. If it is deviated,perform alignment again. (Tape used : SCC-1659,manufactured by A-BEX)
A B C D E F G H I J
1
2
3
4
5
6
7
7 8
PC BOARD (FOIL SIDE VIEW) (COMPONENT SIDE VIEW) (FOIL SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.
4.3320MHz
W24
W64
W76
W78
R200
R202
W36
R55
W73
W69
W12
W99
R67
W58
W104
C4
R35
0
R37
0
W67
W57
W70
C20
9
L10
W66
W68
W4
W6
W72 W
71
W7
W85
W80
W39
W42
W45
W48
W50
W101
W102
W2
W200R
51
R65
R351
R353
R66
X1
C50
C17
C18
C16
0
C152
C55
W15
C15
C16
C16
1
C350
C35
2
C50
3
C16
2
C500
C450
C451
C15
0
C15
9
C56
C58
C53
C57
W97
W98
W103W53
W43W51
W28
W10
X2
W17
R50
1W
3
R50
2
R50
0R
261
L5
R26
0
L4
C402
C400
C401
W54
W47
W95
W93
W89
R11
9
W13
W61
W62
W14
C9
C25
0
C10
W8
W9W
33
W23
W27
W30
W32
W37
W26
W55
W56
R263
R26
2
W22
W77
W63
W65
W21
R252
W105
W52
W100
W94
W96
W92
W91
W90
W87
W59
W60
W20
W25
W29
W31
W35
W19
W11
W82
W79
W83
W40 W
38
W41
W84
W81
C3
W34
W18
W49
W46
W44
R12
0
W88
W74
W75
4.19MHzTP
5V
DG
S-MTR
PD
A
PC
K
2DA
CC
K
DT
H
DT
C
CMP2C
K
L1
RES
L8L7
R10
0
L12
L6
L3
W5
R10
7
1
6
8
1
1
5
8
16
1
9
1
2
25
24
1 5 7 6 10 9
2 3 4 8 12 11 13
L R
1
24
BE
BE
EB
BE
BE
1 11
2 12
BE
BE
A1
Q60
Q56
D370D410
D50
D405
D371
D352
Q51
Q350
D38
0
D401
D400
D56
D52
D51D55
D54
D40
8
D409
D350
D35
1
D53
Q26
1
Q201
Q203
D404
D200
D26
0
P1
IC5
D26
1
J1
J5
J4
J2
J3
IC4
D15
0
D152
D151
WH
1
D100
CN
1
X14-6872-73 (J74-1319-02)
W170
C25
1
R15
6
R15
W158
R14
R62
W159
R57
R59
W15
7
R60
C52
C16
3R
161
R15
9R
162
R16
R13
W17
4
R38
1C
380
R61
R25
1
R15
1
C214
R503
C600 C601
W17
1
R125
R12
3
C13
C14
R58
R52
R54
R106
R112
C16
4
R352
C15
4
C15
3
C35
1
TH1
R50
4
R155
R154
R15
3R
322
R40
1
R40
0
R38
0
R40
8
R40
9
R40
7
R40
6
R41
2
R41
0
R41
1
R30
3
R30
2
R30
4
R30
6
R30
5
R40
3
R30
1
R40
2
C504
C54
C502
C505
R63
R64
W16
2
C50
1
R1 C1
R20
1R
203
R150
W153
C45
2
C20
2C
204
R45
5
R453
R45
4
R451
R450
R452
R20
5
R141
R2
C2
C5
R382
C6
C157
R111
R113
R404R103
R10
8
C151
C156
C155
R16
0R206R207
C15
8
C50
6
R8
C8
R4
R6
R7
C7
R5
R133
R32
3
R11
0
R158
C101
C102 R105
C103
W161
W160
R48
R320
R32
1
R14
0
W173
W154
R124 R122
R118
R15
2
R12
1
R117
R15
7
R405
R14
3
R104
W169
W168
W167
R3
R25
0
W16
5
R49
R413
W15
6
R142
W16
6
W164
R10
1
R102
C104 W163
1 14
1528
8 14
7 1
41
1 3
45
60
1
20
80
61
21
40
1 8
16 9
BE
BEBE
B E
BEB E
B E
B E
BE
B E
B EBE
B EBE
B E
BE
B E
BE
BE
BE
B E
BE
B E
B E
BE
Q61
IC1
Q52
Q59
Q58
Q57
Q15
3
Q15
1
Q15
0
Q55
Q49
Q54
Q53
Q50
Q50
0
Q50
2
Q501
Q35
3
Q30
1
Q32
0
Q35
2
Q35
1
IC6
IC7
Q45
1
Q45
0
Q26
0
IC3
IC2
Q50
3
PL1
PL2
FMA
MA
UD
RS
T6
54
32
1AT
T
VO
L
SR
C
TI
154
CLK
D15
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
X16-1512-7x (J74-1300-02) X16-1512-7x (J74-1300-02)
C5
C2
C3
C4
R2
R3
R4
R5
R6R7
R8
R9
R21
R10
R11
R12
R13
R14
R15
R17
R18
C1
1
2441
64
65 80
40 25
11
122
1
BEQ
1
IC1
D17
J1
Ref. No addressIC1 3JQ1 4J
X16-1512-7x
Ref. No
address
Ref. No
address
IC1
5C
Q59
4A
IC2
4E
Q60
3A
IC3
4D
Q61
3A
IC4
2D
Q150
4D
IC5
4B
Q151
3D
IC6
5C
Q201
4E
Q49
4C
Q203
4E
Q51
4B
Q261
6E
Q50
4B
Q260
5E
Q52
4B
Q301
5C
Q53
4B
Q320
6B
Q54
3B
Q350
3C
Q55
3B
Q351
4C
Q56
2A
Q352
4C
Q57
3A
Q353
4C
Q58
4A
X14-6872-73
SYNTHESIZER UNIT SWITCH UNIT
A B C D E F G H I J
1
2
3
4
5
6
7
AM+B
19
23
20
21
22
AUDIO OUT
SD
S-METER
IF1+B
14
17
18
VDD 5V
IF2+B
15
16
SDA
SCL
DIG GND
10
11
12
13
OSC GND
VT
PLL+B
IFC OUT
7
8
9
OSC GND
OSC GND
OSC GND
FM ANT3
4
5
6
AM ANT
RF GND
FM+B
1
2RF GND
16 15 14 13 12 11 10 9
8 7 6 5 4 3 2 1
FL+
RL+ FL-
RL-
FR
-
RR
-
FR
+
RR
+
P-A
NT
P-C
ON
AC
C
B.U
GN
D
19231721 937 5
L1
C50 3300u16+
0.01
3.3K
1/2
W
33KR52
10K
R54
R370 4.7K
R350 4.7K
R351 1K
R35
2
3.3u25C350
+
22K
C351
0.1u
50C
352
+
1K
0.068
100u10C159
+
+
C16010u16
R15
2 1K
R15
1 4.
7K
91K
R15
3
180K
C16
2 1u
50
+
R15
7 10
0
R15
8 33
K
R15
5 43
0
R15
6
23242526
0.01C151
47u10C150
+
L3 4.7uH
0.1
C15
8R
150
4.7K
0.1
C15
5C15
3 0.
015
C15
4 0.
22
0.033
150PC157
C156
0.22
0.22
24IF1 GND
IF2 GND
0.01
C20
2
0.01
C20
4
22KR203
22K
R20
1
1KR202
1KR200
R20
5
150
35
36
4.7u
H
76
32
C209 47u10+
1
2
3
4
5
0.047C251
10KR251
1500
PC
215
00P
C1
22K
R1
22K
R2
12
11
10
9
8
7
6
5
4
3
2
1PA
N 5
W
L D
ATA
S
L C
LK
L C
E
L D
ATA
L
u G
ND
PAN
5V
RE
SE
T
ILL
GN
D
ILL
+B
ES
D G
ND
R32
2 2.
2K
R30
1 47
0
R30
2 47
0
R30
3 1K
R30
4 1K
27K 47KR320R321
100u
16C
57 +
R62
100u
10C
58 +
1KR64
1KR63
R652.2 1/2W
R662.2 1/2W
R20
7 2.
7K
R20
6 4.
7K
3 4
48 49
43
1312 2 11 60
55
C56
100u
6.3
5.6K
R61
+47
KR
60
10u10
R5822K
100
R59
C55
+
C540.01
100u16+
1KR67
50
GND7R162 47K
6
5
4
3
C16
40.
01
2
1
9
8
11
10
12
13
VDD14
+
0.02
2
4
C7
120KR7
100u
1010
0
+
100PC5
C9
R5
6.8K
R3
L IN
8
L N
F
L O
UT
7 6
C347u6.3
3
10R25
0
120KR8
C25
010
0u10
R6
6.8K
+
C8
0.02
2
C10
100u
10R
410
0
GN
D
VC
C
R O
UT
5 4
100P
C6
R N
F
3 2
+
+C4
47u6
.3R
IN1
4039
C53
37
38
F1 (10A)
R159 100K
28 27 26 25 24 23 22 21 20 18 17 16 15
AC
OU
T L
AC
OU
T R
OU
T L
F
OU
T R
F
OU
T L
R
OU
T R
R
VD
D
GN
D
SD
A
S M
UT
E
QU
AL
MU
X R
MU
X L
1 2 3 4 5 6 7 8 9 10 11 12 13 14
VR
EF
CR
EF
TAP
E L
TAP
E R
CD
R
CD
GN
D
CD
L
PH
-
PH
+
AM
MP
X
LEV
EL
MP
IN
MP
OU
T
1
C14
C13
L452
mH
56 55 54 53 52 51 50 49 48 47 46 45 44 43 4240
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P.O
N
B.U
.DE
T
AC
C D
ET
P. C
ON
T
BE
EP
AM
P S
TB
Y
SV
R
RE
Q H
CH
CO
N
AM
P M
UT
E
MU
TE
AF
C
PLL DATA
PLL CLK
VSS 1
SD
FF/REW
MOTOR
PAN
EL
L C
E
L R
ES
AV
SS
R D
ATA
R Q
UA
L
IC2
SE
L 0
L D
ATA
L
L D
ATA
S
DAT
A C
SEL 1
R CLK
PACK IN
VDD 1
X2
X1
IC
XT1
VDD 0
S METER
R30
6 1K
2
2
TH1
P1
10R32
3
1/2W
1/2W
Q151
Q320
10KQ54,55
Q150
16
DAT
A H
17
CH
CLK
18 19 20
IC2
SE
L 1
AV
RE
F 1
L C
LK
11 12 13
28
27
4.7K
R117
R119 2.2K
R120 1K
R121 10K
1K
1K
R123 10KR122
R124
IC2 CLK
IC2 DATA
FM+B
AM+B
36
35
39
37
38
40
32
41
REQ C
KEY-REQ
SEL 0
VSS 0
AVREFO
PHONE
NOISE
AV CONT
R106
2.2K
47K
R105
6.8K
X1
C102
15P
15PC103
321
57585960
10R10
0
0.02
2
C10
4
RE
SE
T
FW
D/R
EV
ILLU
MI
55
R5547K
47K
R57C52
54
54
R353
Q351
53
4850 49 43
T-M
UT
ER
380
10K
0.01C380
22KR381
R104 47K
R14
0 47
K
2.2K
R14
2 47
K
R11
0 10
0K
R11
3
2.2K
R102
L R
ES
R30
5 1K
3
57
57
R49
100K
22K
R48
53
2131 115 7 9 13 15 17 19 23 25
TAB
RR
+
RR
-
FR
-
FR
+
FR
I
GN
D
RLI
RL+
RL-
FL-
FL+
CD
GN
D2 4
ST
BY
6V
CC
8G
ND
10S
VR
12R
RI
14F
LI16
AC
GN
D18
GN
D20
VC
C22
MU
TE
24G
ND
4.7K
R14
0.22
u50
C16
750
4.7K
0.22
u50
C18
R16
4.7K
0.22
u50
C15
R13
1u50 +
0.22
u50
4.7K
R15
C17
17 19 2321
2425
2326R15
4C
161
19S
CL
1u50C152
+
L64.7uH
4.7uHL7
L10
0.01
C21
4
58
60
RL-
BU
YEL9
TEL MUTEBRN
12
11
10
VIOL/BLK
GRN/BLK
RR+
RR-
RL-
VIOL
15
13
14
RL+GRN
16
1 3 5 7
RR
+
RL+
FL+
FL-
FR
-
RR
-F
R+
2
2
6 8
5 7
4
1 3
6 8
GN
D
4
AC
C
P-CON
B
A
BLK1
ANT. CONP. CON
BLU/WHT
BLU/WHT
RED
4
2
3
GRY/BLK
WHT/BLK
GRY
7
6
5
FR-
FR+
FL-
WHT8FL+
R26
1
R262 47K
GN
D1
PAC
K IN
2
1/2W1K
R26010K
47KR263
GN
D5
MO
T3
MO
T4
T.M
UT
E6
28 27
+B
GN
D
IC4
Q58,59
Q60,61
Q301
Q261
Q350,353
Q352
Q51,52
Q56,57
76
3 5 7 9
47K
R252
R382 47K
R51
47K
R13
3
4.19MHz
100K
R11
1R
112
W200
L84.7uH
1
2
3 4
5
C10
1
0.01
58
+B
+B
+B
+B
+B
+B
+B
+B
+B+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+8V +8V
+8V +8V
+5V
+8V+8V+8V
+8V
+8V
+8V
+5V
+5V
+5V
+5V +5V
+5V
+5V
+5V
+5V
+5V
+8V
+8V
+8V
+5V
+5V
+5V
+5V
+5V
P5V
P5V
P5V
P5V P5V P5V P5V P5V+
5V
IC3
IC5
KRC-2902YA/G (1/2)
SYNTHESIZER UNIT (X14-6872-73)
IC4
IC2
IC1
A
IC6
(E30-4790-05)DC1
47K
47K
22K
22K
22K
47K
10K
47K 47
K
47K
10K
22K
22K
47K
22K
47K
22K
22K
10K
47K
A1
J2
D50
D26
1
D52 D51
Q50
D35
1
D370
ANT-CON.
Q350
Q351
D352
Q353
Q352Q151
D150
D15
2
D15
1
Q150
Q201
D200
Q203
ANT
J1
CN1
J3
Q320
Q55
Q54
D55
Q56
Q57
SW
Q301
Q53
Q52
Q51
D53
D54
Q58
Q60
Q61
Q59
D56
8V
IC1 :IC2 : TDA7400DIC3 : HD74HC27FP
UPD780058GC425
IC4 : TDA7386IC5 : LA3161
Q49,50,52,57,61 : 2SC2412K or2SD601A
Q51,261 : 2SB1443Q53 : 2SA1036KQ54,58 : DTC144EK or
KRC104SUN2213 or
Q55,59,352: DTA124EK or
UN2112 or
Q56,60 : 2SA2057 or2SB1548(P) or
Q201,203,350 : 2SB1277(Q,R)Q301 : DTA144EK or
UN2113Q320,351 : 2SA1037K
D50 : 1N5393G-M6 orS2V20∗ A
D51 : MA4068(N)-M orHZS7A3L
D52,200 : MA4051(N)-MD53,260,261,351,370,371
:AM01Z orERA15-01
D54 : MA4056(N)-MD55 : MA4091(N)-MD56 : MA4110-LD100,150-152,352
: 1SS133
J1X16-
2/2
D37
1
Q150UN2212 orDTC124EK or:
Q151,260,353UN2214 or
KRA103S
2SB1655(E,F) or2SB1565(E,F)
KRC103S
KRC107S
DTC114YK or:
ILLUMI+B SW
ILLUMI+B DRIVER
DRIVER SW
P.CON PROTECTION SW
P.ON5V SW
SYSTEM u-COM
DISCHARGE SW
PANEL 5VSW
8VDRIVER
EQUALIZERAMPLIFIER
E-VOLUME
FM+BSW
AM+BSW
TUNER
E-VOLMUTE SW
Q49P-CON.
P.CON
SVR FORCED
DETECTIONACC
D380D
100
PST9135NRIC6 :
MOTOR+B SW
Q260
MOTOR+BDRIVER
D260
WH1
Q261
MUTE LOGIC
POWERANPLIFIER
RESET
RESETCD-CH
SW
P.CON PROTECTIONINHIBIT SW
BACK-UP5V DRIVER
SWDETECTIONBACK-UP
SW
DSM1SD2 or
D380 MA4047-M: B LINEGND LINESIGNAL LINE
1.3V
0.8V
3.5V
0V 8.0V
3.5V
0.8V
1.3V
0V 4.4V
0V 5V
0V 5V
0V
5V0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
5.0V
0V 3.5V
0V8.0V
4.0V
0V 5V
5.0V
0V 5V
0V 5.0V
0V or 5.0V
0V 5V
0V 5V
0V
0V 5V
5V0V
0V 5V
5V0.9V
0V or 5.0V
5V0V
0V or 5.0V0V
5.0V
0V
5.0V
5.0V
0V 4V
0V4V
1.6V
14.4
V
4.8V
0V 7.3V
0V 7.2V
7.2V
3.3V
14.4
V
0V
7.3V
7.3V
7.3V
7.3V
7.2V
0V 7.2V
7.3V
7.3V
7.3V
7.3V
0V
7.3V 0V
0V 2.5V
5.0V 0V 4V
0V
5.0V
5.0V
+B
+B
1 2 63 4 5
ME1 (D40-1136-05)
HD1
S3
MM1
S1
S2
FWD/REV
GND
HEAD R
HEAD COM
HEAD L
T.M
UT
E
GN
D
MO
T G
ND
MO
T+
B
GN
D
PAC
K IN
Lch
1 2
FWD
REV
Rch
Ref.99
63 4 5
CAUTION : For continuedsafety, replace safety criticalcomponents only with manu-facturer's recommended parts(refer to parts list).
Indicates safety crit icalcomponents. To reduce therisk of electric shock, leakage-current or resistance measure-ments shall be carried out(exposed parts are acceptablyinsulated from the supply cir-cuit) before the appliance isreturned to the customer.• DC voltages are as mea-
sured with a high imped-ance voltmeter. Values mayvary slightly due to varia-tions between individualinstruments or/and units.
!
K L M N O P Q R S T
1
2
3
4
5
6
7
+5V +5V
+B
+B
+B
+B +B
12
11
10
9
8
7
6
5
4
3
2
1
PANEL SW
L-DATA S
L-CLK
L-CE
L-DATA L
L-RES
u-GND
PAN 5V
RST
ILL-GND
ILL+B
ESD-GND64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
KS
6
KS
5
KS
4
KS
3
KS
2
KS
1
CO
M3
CO
M2
CO
M1
S55
S54
S53
S52 S51
S50
S49
S48
S47
S46
S45
S44
S43
S42 S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
KE
Y
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
KI1
KI2
KI3
KI4
KI5
VDD
VDD1
VDD2
VSS
TEST
OSC
RES
DATA L
CE
CL
DATA S
KI1
KI2
KI4
KI3
C3 0.047
C1 1000P
C2 0.047
R7 56K
C4 0.01
R21 4.7
R8
1K
R9
47K
79
80
78
76
77
78
77
79
76
R6 100
R3 100
R5 100
R4 100
R2 1K
80
KS
5
254 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
KS
4
KS
3
KS
2
KS
1
C3
C2
C1
55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
PL2
PL1
1313R18
470
R15
470
R14
330
R13
R12
330
R10
470
R11
330
KS1
KS2
KS3
KS4
KS5
KI4
KI3
KI2
KI1
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
S19
S18
S17
S16
S15
S14
S13
S7
S8
S6
S9
S5
S11
S10
S12
S4
CO
M3
CO
M2
CO
M1
S55
S53
S54
S51
S52
S49
S50
S48
S46
S47
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
54 53 52 51
S23
S22
S21
S20
25262728293031323334353637383940414243444547464850495251545355C1
C2
C34121011596871314151617181920212223
R17
3
3
0V5V
5.0V
3.3V
1.7V0V
5.0V
5V3.3V
0V5V
0V5V
1.7V3.3V
5V0V0V
5V
0V5V
5V0V
B LINEGND LINE
J1
Q1
2
1
CLK ATT
AM6
5
VOL+
FMAUDIO
D14 : ∗D1-13,15 : ∗
Q1 : DTA114EK
IC1 : LC75883E
J3X14-
1/2
LCD DRIVER
DETECTIONPANEL
AUTO VOL-
T.UP
4 3
T.DOWN
SRC
∗ ED1
RST
∗ D14
∗ D12
∗ D9
∗ D6
∗ D4
∗ D1
∗ D15
∗ D13
∗ D10
∗ D7
∗ D5
∗ D2
∗ D11
∗ D8
∗ D3
D17
: MA3062-MD17
IC1
SWITCH UNIT (X16-1512-7X)
KRC-2902YA/G (2/2)
A
LCD
10K
10K
2-71
MODEL NAME
KRC-2902YA
UNIT No.
2-70KRC-2902YG
(X16-1512-7X)
B30-1566-05
D1-13,15
B30-1565-05B30-1511-05
D14
B30-2025-05B38-1099-05
ED1
B38-1037-05
CAUTION : For continued safety, replace safety critical componentsonly with manufacturer's recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electricshock, leakage-current or resistance measurements shall be carriedout (exposed parts are acceptably insulated from the supply circuit)before the appliance is returned to the customer.• DC voltages are as measured with a high impedance voltmeter.
Values may vary slightly due to variations between individualinstruments or/and units.
!
2SB1565
DTA114EKDTA124EKDTA144EKDTC114YKDTC124EKDTC144EKKRC103S2SA1036K2SC2412K
2SB1548
2SB12772SB1443
2SA1037K
KRA102SKRC104S
LA3161
KRC-2902YA/GEXPLODED VIEW (MECHANISM)
Parts with the exploded numbers larger than 700 are not supplied.
A B
1
2
3
31
54
4
99
101
115
53
111102
102
12
103
111
31
33
14
102
114
5239
10
40
34
58
5739
9
35
112
113
7
626
25
HD1
56
100
106x2
373638
M120
5
1
23
22
105x2 113
112
16
1817
19 102
104
13
KRC-2902YA/GEXPLODED VIEW (UNIT)
Parts with the exploded numbers larger than 700 are not supplied.
C D
1
2
3
M3x4φ3x5φ3x10φ3x8φ3x20φ2.6x6M3x8
: N30-3004-46: N83-3005-46: N35-3010-46: N80-3008-46: N83-3020-46: N86-2606-46: N30-3008-46
ABCDEFK
B
B
B
B
(X14-)
Ax2
Ax2
737
K
K
Refer to thefollowing page.
ME1
A1 F1
244
211
242
206
201
221
766
216x2
(X14-)
J1 (X14-)
(X14-)
J5(X14-)
J4
(X14-)
772(X14-)
771
(X14-)
770
(X14-)
773
(X14-)
J2
(X14-)
L1
724
702
B
B
E
D
Cx2
Fx2
263
DC1
14
KRC-2902YA/GEXPLODED VIEW (PANEL)
Parts with the exploded numbers larger than 700 are not supplied.
E F
1
2
3
G
J
H
G
φ2x6φ1.5φ2x8 (BLK)
: N80-2006-46: N29-0205-04: N80-2008-45
GHJ
Jx2
Jx2
203
228
218
219
229
217
704
767
(X16-)
(X16-)
(X16-)
277(X16-)
278
(X16-)
279
(X16-)
ED1
(X16-)
276
780
207
230
241
253
709
249
222
205
PA1
250
246
252
251
254
248
251
255
227227
227
247
226
15
KRC-2902YA/G
16
PARTS LIST
∗ New PartsParts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.
Ref. No.Add
New
Parts No. DescriptionDestination
KRC-2902YA/G
201 1C A02-1486-13 PLASTIC CABINET ASSY203 1F A22-2386-13 SUB PANEL ASSY205 2F A46-1748-01 REAR COVER206 1D A52-0756-02 TOP PLATE207 1F A53-1638-13 CASSETTE LID
PA1 3E A64-2520-02 PANEL ASSY
211 3C B07-2124-02 ESCUTCHEON- B46-0100-50 WARRANTY CARD- B46-0606-04 ID CARD- B58-1365-04 CAUTION CARD- B64-2109-00 INSTRUCTION MANUAL
216 1C D10-3031-04 LEVER217 1F D10-4446-03 LEVER218 1F D10-4447-03 LEVER219 1F D21-2329-04 SHAFTME1 2C D40-1136-05 CASSETTE MECHANISM ASSY
221 2D E29-1585-04 LEAD PLATE222 2F E29-1869-02 CONDUCTIVE RUBBERDC1 1C E30-4790-05 DC CORD
F1 2D F52-0006-05 FUSE (MINI BLADE TYPE)F1 2D F52-0011-05 FUSE (MINI BLADE TYPE)
226 1F G01-2525-04 TORSION COIL SPRING227 3F G01-2793-14 COMPRESSION SPRING228 1F G01-2987-04 TORSION COIL SPRING229 1F G01-2988-04 EXTENSION SPRING230 2F G01-2990-04 COMPRESSION SPRING
- H10-4685-12 POLYSTYRENE FOAMED FIXTURE- H25-0337-04 PROTECTION BAG (180X300X0.03)- H25-1111-04 PROTECTION BAG (280X450X0.03)- H54-2240-03 ITEM CARTON CASE Z1- H54-2390-03 ITEM CARTON CASE Z2
241 3E J19-5125-02 HOLDER242 1C J21-9491-13 MOUNTING HARDWARE ASSY244 3D J61-0307-05 WIRE BAND
246 3F K24-3545-04 KNOB EJECT247 3F K24-3546-04 KNOB FF248 3F K24-3547-04 KNOB REW249 3E K24-3817-03 KNOB SRC250 2E K24-3818-04 KNOB REL
251 3E K24-3819-04 KNOB SEEK252 3E K25-1387-03 KNOB AUTO253 3E K25-1388-03 KNOB ATT254 3E K25-1389-03 KNOB FM,AM255 3E K25-1390-03 KNOB VOL
A 3D N30-3004-46 PAN HEAD MACHINE SCREWB 3D N83-3005-46 PAN HEAD TAPTITE SCREWG 3E N80-2006-46 PAN HEAD TAPTITE SCREWH 1F N29-0205-04 RETAINING RING (1.5)J 2F N80-2008-45 PAN HEAD TAPTITE SCREW
K 1D N30-3008-46 PAN HEAD MACHINE SCREW
Ref. No.Add
New
Parts No. DescriptionDestination
263 1C T90-0523-05 ANTENNA ADAPTOR
C1,2 CK73GB1H152K CHIP C 1500PF KC3,4 CE04CW0J470M ELECTRO 47UF 6.3WVC5,6 CC73GCH1H101J CHIP C 100PF JC7,8 CK73GB1E223K CHIP C 0.022UF KC7,8 CK73GB1H223K CHIP C 0.022UF K
C9,10 CE04CW1A101M ELECTRO 100UF 10WVC13,14 CK73GB1A224K CHIP C 0.22UF KC15-18 C90-5296-05 NP-ELECT 0.22UF 50WVC50 C90-5242-05 ELECTRO 3300UF 16WVC52 CK73GB1H103K CHIP C 0.010UF K
C53 CE04CW1C101M ELECTRO 100UF 16WVC54 CK73GB1H103K CHIP C 0.010UF KC55 C90-2594-05 ELECTRO 10UF 10WVC56 CE04CW0J101M ELECTRO 100UF 6.3WVC57 CE04CW1C101M ELECTRO 100UF 16WV
C58 CE04CW1A101M ELECTRO 100UF 10WVC101 CK73GB1H103K CHIP C 0.010UF KC102,103 CC73GCH1H150J CHIP C 15PF JC104 CK73GB1E223K CHIP C 0.022UF KC104 CK73GB1H223K CHIP C 0.022UF K
C150 CE04CW1A470M ELECTRO 47UF 10WVC151 CK73GB1H103K CHIP C 0.010UF KC152 C90-2608-05 ELECTRO 1.0UF 50WVC153 CK73GB1H153K CHIP C 0.015UF KC154 CK73GB1A224K CHIP C 0.22UF K
C155 CK73GB1C104K CHIP C 0.10UF KC156 CK73GB1E333K CHIP C 0.033UF KC156 CK73GB1H333K CHIP C 0.033UF KC157 CC73GCH1H151J CHIP C 150PF JC158 CK73GB1C104K CHIP C 0.10UF K
C159 CE04CW1A101M ELECTRO 100UF 10WVC160 C90-2597-05 ELECTRO 10UF 16WVC161 C90-2935-05 ELECTRO 1.0UF 50WVC162 C90-2608-05 ELECTRO 1.0UF 50WVC164 CK73GB1H103K CHIP C 0.010UF K
C202 CK73GB1H103K CHIP C 0.010UF KC204 CK73GB1H103K CHIP C 0.010UF KC209 CE04DW1A470M ELECTRO 47UF 10WVC214 CK73GB1H103K CHIP C 0.010UF KC250 CE04CW1A101M ELECTRO 100UF 10WV
C251 CK73GB1E473K CHIP C 0.047UF KC350 C90-2598-05 ELECTRO 3.3UF 25WVC351 CK73GB1C683K CHIP C 0.068UF KC352 C90-2602-05 ELECTRO 0.10UF 50WVC380 CK73GB1H103K CHIP C 0.010UF K
CN1 E40-3240-05 PIN ASSYJ1 E04-0312-05 RF COAXIAL CABLE RECEPTACLEJ2 E58-0863-15 RECTANGULAR RECEPTACLEJ3 E58-0888-05 RECTANGULAR RECEPTACLEP1 E23-0745-05 TERMINAL
WH1 E39-0344-05 WIRING HARNESS
Z1 : KRC-2902YA Z2 : KRC-2902YG indicates safety critical components.!
!
!
!
!
SYNTHESIZER UNIT (X14-6872-73)
KRC-2902YA/G
17
PARTS LIST
Destination
∗ New PartsParts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.
Ref. No.Add
New
Parts No. DescriptionDestination
L1 2D L33-1063-15 CHOKE COILL3 L40-4795-91 SMALL FIXED INDUCTOR (4.7UH,J)L4 L33-1123-05 LINE FILTER COILL6-8 L40-4795-91 SMALL FIXED INDUCTOR (4.7UH,J)L10 L40-4795-91 SMALL FIXED INDUCTOR (4.7UH,J)
X1 L77-1167-05 CRYSTAL RESONATOR (4.19M)
B 1D N83-3005-46 PAN HEAD TAPTITE SCREWC 1D N35-3010-46 BINDING HEAD MACHINE SCREWE 1D N83-3020-46 PAN HEAD TAPTITE SCREWF 2D N86-2606-46 BINDING HEAD TAPTITE SCREW
R1,2 RK73GB2A223J CHIP R 22K J 1/10WR3 RK73EB2E101J CHIP R 100 J 1/4WR4 RK73GB2A101J CHIP R 100 J 1/10WR5,6 RK73GB2A682J CHIP R 6.8K J 1/10WR7,8 RK73GB2A124J CHIP R 120K J 1/10W
R13 RK73EB2E472J CHIP R 4.7K J 1/4WR14,15 RK73GB2A472J CHIP R 4.7K J 1/10WR16 RK73EB2E472J CHIP R 4.7K J 1/4WR48 RK73EB2E104J CHIP R 100K J 1/4WR49 RK73EB2E223J CHIP R 22K J 1/4W
R51 RD14DB2H332J SMALL-RD 3.3K J 1/2WR52 RK73FB2B333J CHIP R 33K J 1/8WR54 RK73FB2B103J CHIP R 10K J 1/8WR57 RK73GB2A473J CHIP R 47K J 1/10WR58 RK73FB2B223J CHIP R 22K J 1/8W
R59 RK73GB2A101J CHIP R 100 J 1/10WR60 RK73GB2A473J CHIP R 47K J 1/10WR61 RK73GB2A562J CHIP R 5.6K J 1/10WR62 RK73GB2A103J CHIP R 10K J 1/10WR63,64 RK73GB2A102J CHIP R 1.0K J 1/10W
R65,66 RD14DB2H2R2J SMALL-RD 2.2 J 1/2WR102 RK73GB2A473J CHIP R 47K J 1/10WR104 RK73GB2A473J CHIP R 47K J 1/10WR105 RK73GB2A682J CHIP R 6.8K J 1/10WR106 RK73GB2A222J CHIP R 2.2K J 1/10W
R110 RK73GB2A104J CHIP R 100K J 1/10WR111 RK73GB2A222J CHIP R 2.2K J 1/10WR112 RK73GB2A104J CHIP R 100K J 1/10WR113 RK73GB2A222J CHIP R 2.2K J 1/10WR117 RK73GB2A472J CHIP R 4.7K J 1/10W
R118 RK73GB2A222J CHIP R 2.2K J 1/10WR121 RK73EB2E103J CHIP R 10K J 1/4WR122 RK73GB2A102J CHIP R 1.0K J 1/10WR123 RK73GB2A103J CHIP R 10K J 1/10WR124 RK73GB2A102J CHIP R 1.0K J 1/10W
R133 RK73GB2A473J CHIP R 47K J 1/10WR140 RK73GB2A473J CHIP R 47K J 1/10WR142 RK73GB2A473J CHIP R 47K J 1/10WR150,151 RK73GB2A472J CHIP R 4.7K J 1/10WR152 RK73FB2B102J CHIP R 1.0K J 1/8W
R153 RK73GB2A913J CHIP R 91K J 1/10WR154 RK73GB2A751J CHIP R 750 J 1/10WR155 RK73GB2A431J CHIP R 430 J 1/10WR156 RK73GB2A184J CHIP R 180K J 1/10W
Ref. No.Add
New
Parts No. Description
R157 RK73GB2A101J CHIP R 100 J 1/10WR158 RK73GB2A333J CHIP R 33K J 1/10WR159 RK73GB2A104J CHIP R 100K J 1/10WR162 RK73GB2A473J CHIP R 47K J 1/10WR201 RK73EB2E223J CHIP R 22K J 1/4W
R203 RK73EB2E223J CHIP R 22K J 1/4WR205 RK73EB2E151J CHIP R 150 J 1/4WR206 RK73GB2A472J CHIP R 4.7K J 1/10WR207 RK73GB2A272J CHIP R 2.7K J 1/10WR250 RK73EB2E100J CHIP R 10 J 1/4W
R251 RK73GB2A103J CHIP R 10K J 1/10WR260 RD14DB2H102J SMALL-RD 1.0K J 1/2WR301,302 RK73EB2E471J CHIP R 470 J 1/4WR303-306 RK73EB2E102J CHIP R 1.0K J 1/4WR320 RK73GB2A473J CHIP R 47K J 1/10W
R321 RK73EB2E273J CHIP R 27K J 1/4WR322 RK73EB2E222J CHIP R 2.2K J 1/4WR323 RK73EB2E100J CHIP R 10 J 1/4WR351 RD14DB2H102J SMALL-RD 1.0K J 1/2WR352 RK73FB2B223J CHIP R 22K J 1/8W
R353 RD14DB2H102J SMALL-RD 1.0K J 1/2WR380 RK73EB2E103J CHIP R 10K J 1/4WR381 RK73GB2A223J CHIP R 22K J 1/10WR382 RK73GB2A473J CHIP R 47K J 1/10WW153,154 R92-2053-05 CHIP R 0 J 1/8W
W156-170 R92-2053-05 CHIP R 0 J 1/8WW171 R92-1252-05 CHIP R 0 OHM J 1/16WW173,174 R92-2053-05 CHIP R 0 J 1/8W
D50 S2V20∗ A DIODED50 1N5393G-M6 DIODED51 HZS7A3L ZENER DIODED51 MA4068(N)-M ZENER DIODED52 MA4051(N)-M ZENER DIODE
D53 AM01Z DIODED53 DSM1SD2 DIODED53 ERA15-01 DIODED54 MA4056(N)-M ZENER DIODED55 MA4091(N)-L ZENER DIODE
D56 MA4110-L ZENER DIODED100 1SS133 DIODED150-152 1SS133 DIODED200 MA4051(N)-M ZENER DIODED260,261 AM01Z DIODE
D260,261 DSM1SD2 DIODED260,261 ERA15-01 DIODED351 AM01Z DIODED351 DSM1SD2 DIODED351 ERA15-01 DIODE
D352 1SS133 DIODED370,371 AM01Z DIODED370,371 DSM1SD2 DIODED370,371 ERA15-01 DIODED380 MA4047-M ZENER DIODE
IC1 UPD780058GC425 MI-COM IC
Z1 : KRC-2902YA Z2 : KRC-2902YG indicates safety critical components.!
SYNTHESIZER UNIT (X14-6872-73)
!
Q353 DTC114YK DIGITAL TRANSISTORQ353 KRC107S DIGITAL TRANSISTORQ353 UN2214 DIGITAL TRANSISTORTH1 PTH9C42BD471Q POSITIVE RESISTOR
A1 2D X86-3282-72 TUNER UNIT
276 2E B11-1376-04 OPTICAL DIFFUSER277 2E B11-0992-04 REFLECTION SHEET278 2E B19-2019-03 LIGHTING BOARDD1-13 B30-1565-05 LED (1608,PG) Z2D1-13 B30-1566-05 LED (1608,RED) Z1
D14 B30-1511-05 LED (1,RED) Z1D14 B30-2025-05 LED Z2D15 B30-1565-05 LED (1608,PG) Z2D15 B30-1566-05 LED (1608,RED) Z1ED1 B38-1037-05 LIQUID CRYSTAL Z2
ED1 2E B38-1099-05 LIQUID CRYSTAL Z1PL1,2 B30-1485-05 LAMP (5.5V 0.125A)
C1 CK73GB1H102K CHIP C 1000PF KC2,3 CK73GB1E473K CHIP C 0.047UF KC2,3 CK73GB1H473K CHIP C 0.047UF KC4 CK73GB1H103K CHIP C 0.010UF K
279 2E E29-1600-04 CONDUCTIVE RUBBERJ1 E59-0831-05 RECTANGULAR PLUG
R2 RK73GB2A102J CHIP R 1.0K J 1/10WR3-6 RK73GB2A101J CHIP R 100 J 1/10WR7 RK73GB2A563J CHIP R 56K J 1/10WR8 RK73GB2A102J CHIP R 1.0K J 1/10WR9 RK73GB2A473J CHIP R 47K J 1/10W
R10 RK73EB2E331J CHIP R 330 J 1/4WR11 RK73EB2E471J CHIP R 470 J 1/4WR12,13 RK73EB2E331J CHIP R 330 J 1/4WR14,15 RK73EB2E471J CHIP R 470 J 1/4WR17,18 RK73EB2E130J CHIP R 13 J 1/4W
R21 RK73GB2A4R7J CHIP R 4.7 J 1/10W
D17 MA3062-M ZENER DIODEIC1 LC75883E MOS-ICQ1 DTA114EK DIGITAL TRANSISTORQ1 KRA102S DIGITAL TRANSISTORQ1 UN2111 DIGITAL TRANSISTOR
1 2A A10-4328-08 CHASISS CALKING ASSY4 3B J26-4017-08 PRINTED WIRING BOARD ASSY5 2A J21-7778-08 MOUNTING HARDWARE6 2B D10-4091-08 SLIDER7 2B D13-1323-08 GEAR
9 2B D10-4200-08 ARM ASSY (F)10 2A D10-4201-08 ARM ASSY (R)12 3A A11-0930-08 SUB CHASSIS CALKING ASSY14 3A J26-4018-08 PRINTED WIRING BOARD ASSY16 1B G01-2826-08 TORSION COIL SPRING
17 1A D10-4094-08 SLIDER
KRC-2902YA/G
18
PARTS LIST
Destination
∗ New PartsParts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.
Ref. No.Add
New
Parts No. DescriptionDestination
IC2 TDA7400D ANALOGUE ICIC3 HD74HC27FP MOS-ICIC4 TDA7386 ANALOGUE ICIC5 LA3161 IC (PREAMP X2)IC6 PST9135NR ANALOGUE IC
Q49,50 2SC2412K TRANSISTORQ49,50 2SD601A TRANSISTORQ51 2SB1443 TRANSISTORQ52 2SC2412K TRANSISTORQ52 2SD601A TRANSISTOR
Q53 2SA1036K TRANSISTORQ54 DTC144EK DIGITAL TRANSISTORQ54 KRC104S DIGITAL TRANSISTORQ54 UN2213 DIGITAL TRANSISTORQ55 DTA124EK DIGITAL TRANSISTOR
Q55 KRA103S DIGITAL TRANSISTORQ55 UN2112 DIGITAL TRANSISTORQ56 2SA2057 TRANSISTORQ56 2SB1548(P) TRANSISTORQ56 2SB1565(E,F) TRANSISTOR
Q56 2SB1655(E,F) TRANSISTORQ57 2SC2412K TRANSISTORQ57 2SD601A TRANSISTORQ58 DTC144EK DIGITAL TRANSISTORQ58 KRC104S DIGITAL TRANSISTOR
Q58 UN2213 DIGITAL TRANSISTORQ59 DTA124EK DIGITAL TRANSISTORQ59 KRA103S DIGITAL TRANSISTORQ59 UN2112 DIGITAL TRANSISTORQ60 2SA2057 TRANSISTOR
Q60 2SB1548(P) TRANSISTORQ60 2SB1565(E,F) TRANSISTORQ60 2SB1655(E,F) TRANSISTORQ61 2SC2412K TRANSISTORQ61 2SD601A TRANSISTOR
Q150 DTC124EK DIGITAL TRANSISTORQ150 KRC103S DIGITAL TRANSISTORQ150 UN2212 DIGITAL TRANSISTORQ151 DTC114YK DIGITAL TRANSISTORQ151 KRC107S DIGITAL TRANSISTOR
Q151 UN2214 DIGITAL TRANSISTORQ201 2SB1277(Q,R) TRANSISTORQ203 2SB1277(Q,R) TRANSISTORQ260 DTC114YK DIGITAL TRANSISTORQ260 KRC107S DIGITAL TRANSISTOR
Q260 UN2214 DIGITAL TRANSISTORQ261 2SB1443 TRANSISTORQ301 DTA144EK DIGITAL TRANSISTORQ301 UN2113 DIGITAL TRANSISTORQ320 2SA1037K TRANSISTOR
Q350 2SB1277(Q,R) TRANSISTORQ351 2SA1037K TRANSISTORQ352 DTA124EK DIGITAL TRANSISTORQ352 KRA103S DIGITAL TRANSISTORQ352 UN2112 DIGITAL TRANSISTOR
Ref. No.Add
New
Parts No. Description
Z1 : KRC-2902YA Z2 : KRC-2902YG indicates safety critical components.!
SYNTHESIZER UNIT (X14-6872-73)
SWITCH UNIT (X16-1512-7x)
CASSETTE MECHANISM ASSY (D40-1136-05)
KRC-2902YA/G
19
PARTS LIST
Destination
∗ New PartsParts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.
Ref. No.Add
New
Parts No. DescriptionDestination
18 1B D10-4095-08 SLIDER19 1A D10-4096-08 ARM20 1A J19-4736-08 HOLDER ASSY22 2A G01-2827-08 TENSION COIL SPRING23 2A D10-4097-08 LEVER
25 2B D10-4098-08 SLIDER26 2B G09-2019-08 SPRING31 3A D01-0608-08 FLYWHEEL ASSY33 3A G01-2828-08 TENSION COIL SPRING34 2B G01-2829-08 TENSION COIL SPRING
35 2B D10-4099-08 ARM36 1A D10-4100-08 ARM37 1A D14-0682-08 ROLLER38 1A D10-4101-08 LEVER39 2A G01-2830-08 COMPRESSION COIL SPRING
40 2A D10-4102-08 ARM52 2A D13-1110-08 GEAR53 2B D15-0909-08 PULLEY54 3B D16-0606-08 BELT56 1B D10-4105-08 ARM ASSY
57 2B D10-4104-08 ARM58 2B G01-2831-08 TENSION COIL SPRING99 3B E39-0181-08 WIRE HARNESS100 1B J11-0618-08 CLAMPER101 3B N09-4328-08 SCREW
102 3A N09-4326-08 SCREW103 3A N09-4191-08 SCREW104 1B N09-4192-08 SCREW105 2A N09-4058-08 SCREW106 1A N09-4109-08 SCREW
111 3B N19-2082-08 FLAT WASHER112 2A N19-2083-08 FLAT WASHER113 2A N19-2084-08 FLAT WASHER114 3A N19-2043-08 FLAT WASHER115 2B N19-2038-08 FLAT WASHER
HD1 1B T31-0229-08 PLAYBACK HEAD
M1 1A T42-1025-08 MOTOR ASSY
Ref. No.Add
New
Parts No. Description
Z1 : KRC-2902YA Z2 : KRC-2902YG indicates safety critical components.!
CASSETTE MECHANISM ASSY (D40-1136-05)
KRC-2902YA/GSPECIFICATIONS
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
FM SectionFrequency Range ................................... 65MHz~74MHzFrequency step ..................................................... 30kHzFrequency Range ........................... 87.5MHz~108.0MHzFrequency step ..................................................... 50kHzUsable Sensitivity (S/N : 26dB)
65MHz~74MHz .......................................... 1.4µ V/75Ω87.5MHz~108.0MHz .................................. 0.7µ V/75Ω
Quieting Sensitivity (S/N : 46dB) 65MHz~74MHz .......................................... 1.4µ V/75Ω87.5MHz~108.0MHz .................................. 1.6µ V/75Ω
Frequency Response (±3.0dB) ................... 30Hz~15kHzS/N (dB) .................................................... 65dB (MONO)Selectivity (DIN) (dB) .......................... ≥80dB (±400kHz)Stereo Separation
87.5MHz~108.0MHz ................................ 35dB (1kHz)
MW SectionFrequency Range ............................... 531kHz~1611kHzFrequency step ....................................................... 9kHzUsable Sensitivity (S/N : 20dB) ............................... 25µV
LW SectionFrequency Range ................................. 153kHz~281kHzUsable Sensitivity (S/N : 20dB) ............................... 45µV
Cassette SectionTape Speed ................................................. 4.76cm/sec.Wow & Flutter ......................................... 0.12% (WRMS)Frequency Response (±3.0dB) ..... 30Hz~14kHz (120µs)Separation ................................................... 40dB (1kHz)S/N (dB) .................................................................. 52dB
Pre-out SectionLevel/Load ................................................ 1800mV/10kΩImpedance ........................................................... ≤600Ω
AMP SectionMaximum Power ................................................ 45W × 4Power DIN45324, +B=14.4V .............................. 28W × 4
Tone SectionBass ............................................................ 100Hz±10dBTreble .......................................................... 10kHz±10dB
GeneralOperating Voltage .................. 14.4V (11~16V allowable)Current Consumption ................................................ 10AInstallation Size (W) × (H) × (D) ..... 182 × 53 × 158 (mm)Weight ................................................................... 1300g