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COLOUR TELEVISION
COPYRIGHT © 2007 Victor Company of Japan, Limited. No.YA522007
SCHEMATIC DIAGRAMS
CD-ROM No.SML200706
AV-1400AE, AV-14A17,
AV-14A17/A, AV-14A17/H,
AV-14A17/L, AV-14AMG7/G
BASIC CHASSIS
CQ
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5.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and theISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be
taken for the following points.
(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. if the above caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and ISOLATED(NEUTRA
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected, a fuse or any parts will be brok
Since the circuit diagram is a standard one, the circuit and
circuit constants may be subject to change for improvementwithout any notice.
NOTE
Due improvement in performance, some part numbers show
in the circuit diagram may not agree with those indicated in
the part list.
When ordering parts, please use the numbers that appear
in the Parts List.
STANDARD CIRCUIT DIAGRAMNOTE ON USING CIRCUIT DIAGRAMS
(7)Ground symbol
: LIVE side ground
: ISOLATED(NEUTRAL) side ground
: EARTH ground
: DIGITAL ground
(6)Connecting method
: Connector : Wrapping or solderi
: Receptacle
(5)Test point
: Test point : Only test point display
Respective voltage values are indicated
: B1
: 9V : 5V
: B2 (12V
(4)Power Supply
Type
MM : Metalized mylar capacitor PP : Polypropylene capacitor MPP : Metalized polypropylene capacitor MF : Metalized film capacitor TF : Thin film capacitor BP : Bipolar electrolytic capacitor TAN : Tantalum capacitor
(3)Coils
No unit
Others
: [µH]
: As specified
No indication : Ceramic capacitor
(2)Capacitors
Capacitance value
1 or higher : [pF]
less than 1 : [µF]
Withstand voltage
No indication : DC50[V]
Others : DC withstand voltage [V]
AC indicated : AC withstand voltage [V]
Electrolytic Capacitors
47/50[Example]: Capacitance value [µF]/withstand voltage[V]
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
Type
No indication : Carbon resistor
OMR : Oxide metal film resistor
MFR : Metal film resistor
MPR : Metal plate resistor
UNFR : Uninflammable resistor
FR : Fusible resistor
4.INDICATIONS ON THE CIRCUIT DIAGRAM(1)Resistors
Resistance value
No unit : [Ω]
K : [kΩ]
M
Rated allowable power
No indication : 1/16 [W]
Others : As specified
: [MΩ]
3.INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board : R209 R209
1.SAFETY
The components identified by the symbol and shading are
critical for safety. For continued safety replace safety ciritical
components only with manufactures recommended parts.
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1)Input signal : Colour bar signal
(2)Setting positions of each knob/button and
variable resistor
(3)Internal resistance of tester : DC 20kΩ/V
(4)Oscilloscope sweeping time : H 20µs / div
: V 5ms / div
: Othters Sweeping time is
specified
(5)Voltage values : All DC voltage values
: Original setting position
when shipped
AV-1400AE, AV-14A17, AV-14A17 /A,AV-14A17 /H, AV-14A17 /L, AV-14AMG7 /G
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SEMICONDUCTOR SHAPES
CONTENTSSEMICONDUCTOR SHAPES ......................................................................2-2
BLOCK DIAGRAM ........................................................................................2-3
CIRCUIT DIAGRAMS....................................................................................2-5MAIN PWB CIRCUIT DIAGRAM(1/2)(2/2)................................................................................................... 2-5
MAIN PWB CIRCUIT DIAGRAM(1/2) ......................................................................................................... 2-7
PATTERN DIAGRAMS .................................................................................2-9MAIN PWB PATTERN ................................................................................................................................ 2-9
VOLTAGE CHARTS ...................................................................................2-11
WAVEFORMS ............................................................................................ 2-12
USING P.W. BOARD
P.W.B ASS’Y name
MAIN P.W. BOARD SCQ-1024A-H2
AV-1400AE
IC
BOTTOM VIEW FRONT VIEW TOP VIEW
1 N
N1
OUT
E
IN
IN OUTE
1 N
TOP VIEW
1
N
1
N
CHIP IC
TRANSISTOR
BOTTOM VIEW FRONT VIEW TOP VIEW
CHIP TR
E
C
BE C B
C
B EB(G)
E(S)
C(D) E C B
E C B
SCQ-1020A-H2
AV-14A17
SCQ-1022A-H2
AV-14A17/A
SCQ-1021A-H2
AV-14A17/H
SCQ-1023A-H2
AV-14A17/L
SCQ-1018A-H2
AV-14AMG7/G
2-2(No.YA528)
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2-4(No.YA528)(No.YA528)2-3
MAIN PWB (1/2)
REAR OUTVIDEO
AUDIO
AC IN
LF901
L941
IF
9V
14V
AUDIO OUT1
SAW
REMOT
V OUT
H OUT
MONITOR OUT
V2
KEY
EXT AUDIO2
AUO MON 1
SCL/SDA
SCL/SDA
SCL/SDA
5V
B1
TU001
TUNER
IC702
MEMORY
Q101
IF AMP
SF101
SAW FILTER
IC921
POWER
REG.
IC9719V REG.
IC972
5V REG.
IC973
5V REG.
D901-D904
T921
SW
TRANSF.
REAR INVIDEO
AUDIO
J001
VIDEO
AUDIO
J001
5V _STB
8V
G OUT
R OUT
B OUT
F901 POWER SW
V_REAR
A_REAR
V_FRONT
A_FRONT
V_MONI
A_MONI
S901
AUDIO
CONTROL
PIF PROCESS
ODS R / G / B
/ Ys / I
AUDIO SW
VIDEO SW
RGBSW
I/O
PORT
CPU
MEMORY
Y PROCESS
VERT. PROCESS
HOR. PROCESS
BASE BAND
PROCESS
CUT-OFF/
DRIVE
V3
EXT AUDIO1
POWER LED
CHROMA
PROCESS
IF AGC
J003
FRONT IN
J004
41,42
57,58
24
32
23
22
45
38
IC701
MAIN CPU / IF PROCESS / VIDEO(Y/C/RGB)PROCESS / DEF.PROCESS / AUDIO PROCESS
BLOCK DIAGRAM
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2-8(No.YA528)(No.YA528)2-7
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
IC973
GND
C974
D951
GND
C972
D901
C973 C975
D902
GND
R971 R9 72
GNDD904
D903
T501
R902
Y504
T921
S901R905
Y906
Y903
Y902
Y901
Y503
GND GND
D554
C930
C971
C427
K942
C943
R924
R923
R529
D976
C993
R531
CN0PW
C901
C910
D427
LF901
C925
R921
D930
CNDEG
D425
VA901
R532
R904
C926
F901
R439
C942
C931
C979
R903
Y904
Y905 C992
C991
C907
R453
C904
R935
C978
C429
R443
R526
C905
R933
R901
R922
C929
C927
C922
C932
C909
K901
D927
R934
D931
D921
D925
D933
K941
K943
D943
D942
CP943
CP942
R422
C944
CN
C946
R424
D42
C436
D941
C941
C947
C531
L941
R991
GNDGND
TH901
D975IC972
R979
IC971
R561 C561
D561
Q561D563
R565
R566
C563 C56
C562
C564
R562 R563
R564
R567
R570
D562
Q562
Q563
R951
R525
C523
C526
C424
Q521
Q402
Q
Q401
IC421
IC921
A_
V C C
H E A T E R
5 V
1 4 V
H B
A_
G N D
G N D
D 9 2 8
D 9 2 9
D 9 7 7
C 9 2 4
R 9
2 8
R 9 2 5
C 9 4 5
5 V_
S T B
9 V
A . P R O T
P_
O N / O F F
3 2 V
H_
O U T
V_
O U T
F B P
A B L
8 V
C 5 2 9
C 4 2 6
0.1
100/16
*9
100/25 100/16
*9
X 2.2K
*9
*9
100K
BW
X
X
X
0
X
*3
X
100/25
100/35
*7
150K
*3
330
33/50
1.8
*9
*3
1K
X
3300p
82K
100/16
100K
BW
BW
2.7K
3.9K
100/16
10/50
1
270
4.7
220.1
.1/50
220p
*
*7
X
*3
*9
*9
X
*7
*9
4.7K
1000/25
470p
3.3K
.33
*
*3
X X
X
X
X
X
X
X X
47/25
X
10K 3.3K
22K
X
*1
47K
68
47/25
.01
*1
4 . 7 / 5 0
1 M
1 0 0 0 / 2 5
POWERREGULATION
POWER SW
NOTE) 1. Refer to page 2-11 for voltages of this circuit diagram.
2. Refer to page 2-12 for waveforms of this circuit diagram.
ADJUSTMENTCONNECTOR
MAIN PWB (1/2)SHEET 1
MAIN PWB CIRCUIT DIAGRAM (1/2) SHEET 2
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(No. YA52 8)2-9 2 -10 (No. YA5 28 )
W 0 1 3
W008
W 0 3 2
I C 9 7 3
J 0 0 2
I C 7 0 1
T U 0 0 1
W 0 0 1
R743
W085
W033
C943
R552
R 5 8 2
C561
CP943
C947
C942
CP942
C946
Q 5 2 1
Q 5 6 1
C944
D 9
5 1
R951
W007
C 9 7 1
C972
D423
D551
D 5 5 2
D5
61
D 5 8 2
D 9 7 7
C973
D921
D925
D 9 3 0
D942
D943
R971
Q522
R972
IC972
D 9 7 6
D 9 7 5
C5
65
H S 4 2 1
D931
R 9 3 5
C564
R 5 6 1
C563
C975
I C 4 2 1
W 0 1 6
D 5 6 3
D 5 6 4
W 0 4 4
W017
Q562
R 5 5 1
I C 6 0 1
C606
D 5 6 2
W 0 1 8
W019
R 7 4 4
IC971
FR556
R529
C7
48
R564
R562
C 5 6 2
R 4 3 2
R 4 3 3
C 9
7 4
Q4
01
R 4 4 0
R443
05R6
R 5 2 6
R 5 6 3
R554
R569
Q563
K712
R581
R 5 6 7
R568
R570
C747
R 9 0 1
C551
R928
R933
R 9 3 4
W020
W 0 2 1
W022
R 6 0 6
R444
R607
K 7 1 1
W 0 8 7
W 0 0 3
C436
C 9 3 0
H S 6 0 1
W045
C424
C 5 8 1
C 9 2 2
C 9 2 6
K901
W 0 2 3
C555
C 4 3 0
W 0 0 4
C 4 2 7
C428
C924
W002
C 5 5 4
C901
C 9 1 0
C 4 3 5
C 5 5 2
C945
R002
R001
C 5 3 1
R710
W 0 3 9
W 0 0 5
W006
R 7 5 1
W 0 3 4
R 7 1 1
W043
C 4 3 3
C 5 2 3
C978
T501
C 5 5 3
R 7 1 2
Y 5 0 4
C929
C941
C993
R608
R 7 1 3
L 5 5 1
L941
W025
R5 31
Y 5 0 2
R 7 1 4
Q710
D 7 1 0
C925
W026
C 7 1 0
C711
C7
12
C7
13
W027
R 7 1 5
W028
X710
R705 R706
W014
W030
K941
K942
K943
K421
D941
R707 R708
C525
C 7 1 4
W 0 1 5
C 7 1 5
L522
L 7 1 0
K 7 1 0
HS522
R7
50
C979
W 0 3 1
R 6 0 9
R 7 1 6
R717
R 7 1 8
I C 9 2 1
R719
D553
8 1
D 5
C716
C717
C6 08
D 4 2 5
C 5 2 7
C 6 0 9
C604
C718
R 7 2 0
R 9 2 4
C 6 0 5
R 9 2 5
R 7 2 1
R422
C 6 1 1
R424
03
D6
D 6 0 2
R 7 2 2
R 4 3 1
R 4 4 1
R442
R 4
5 3
R565 R5 66
R 5 8 3
R 7 2 3
R724
R 6 0 4
L 7 1 1
C 7 1 9
C 4 2 3
C6
07
C7 20 C 1 1 3
C N 0 0 U
C N 0 H V
C 7 2 1
CN0S1
T522
T 9 2 1
C 7 2 2
C 7 2 3
C 6 1 2
C 5 2 9
D 9 3 3
C 9 3 2D4
27
C429
D 7 1 1
D 7 1 2
R 5 3 2
D421
W035
W042
C 5 2 6
R528
W 0 4 1
C 5 3 0
D 7 1 3
R 5 2 5
C 7 2 4
C725 C 7 2 6
27
C7
C 7 2 8
25
R7
R7 26
C426
R 9 7 9
R 7 2 7
R728
R729
R 7 3 0
D 7 1 4
D715
Q 1 0 3
Q 1 0 4
CF101
R 1 1 0
R585
C 5 8 2
R 1 1 1
C114
1 2
R 1
LF901
R
5 2 1
D719
R113
R114
R 1 1 5
C111
C112
Y603
W086
Q605
W 0 8 8
Q604
R610
R 6 1 1
R6 12
R439
Q402
Y 5 0 1
W 0 8 9
R 6 1 3
R 6 1 4
R615
C 6 1 0
03
Q6
Q601
Q6 02
C601
C602
C 6 0 3
D601
R601
R602
R603
R616
R617
Y607
C N 0 0 C
R
7 4 8
J 0 0 1
CN0S3
J 0 0 3
J 0 0 4
R 7 4 9
S701S702S703S704S705
I C 7 0 2
CN0S4
W071
W0
65
C 7 2 9
C730
C 7 3 1
C 7 3 2
C 7 3 3
R731
R732
L 7 1 2
C 7 3 4
C 7 3 5
R 7 3 3
C 7 3 6
C 7 3 7
R 7 3 4
C 7 3 8
C739
R 7 3 5
R 7 3 6
L 7 1 3
4 0
C 7
C 7 4 1
L 7 1 4
C 7 4 2
C743
R737
R 7 3 8
R 7 3 9
R 7 4 0
D 7
1 6
D7 17
D7 18
CN00T
L715
44C7
C745
R 7 4 5
R 7 4 6
R 7 4 1
R 7 4 2
C746
R747
R 0 0 3
R 0 0 4
R005
C 0 0 1
C 0 0 3
C 0 0 4
C005
C007
C006
C002
C008
L001
K001
Q 1 0 1
Q 1 0 2
C102
C101
C 1 0 3
C 1 0 4
C105
R 1 0 1
R 1 0 2
03
R1
R104
R 1 0 5
R106
R 1 0 7
L101
L 1 0 2
D1 01
C108
C106C107C109
R 1 0 8
R109
S F 1 0 1
Y 1 0 1
C749
C 8 0 7
C804C805
C806
C 8 0 8
Q 8 0 1
Q 8 0 2
C809
C810
R802
R 8 0 3
R806
R 8 0 8
R809
R810R811
C801
02
C8
C803
R801
W058
W059
IC704 D701
R701
C811 D 8 0 1
D 8 0 2
D803
Y604
Y605
Y606
C 7 5 0 W050
W051
W052
W053
W054
W055
W 0 5 6
W057
W060
W061
W062
W063
W064
W 0 6 6
W 0 6 7
W 0 6 8
W069
W 0
7 0
W 0 7 3
W072
W075
W 0 7 6
W 0 7 7
W078
W 0 7 9
W080
W081
W082
W083
W084
W090
W091
W092
W093
W 0 9 4
R618
W046
W049
W048
4 7
W 0
W097
D 9 0 1
D902
D 9 0 3
D 9 0 4
R903
R 9 2 2
C991
W 0 0 9
R9
W 0 1 0
R991
C909
V A 9 0 1
CNDEG
C904
C905
R117
C 9 0 7
C992
TH901
FC901
R703
FC902
R704
R904Y904
Y905
C701
W 0 1 1
W 0 1 2
W 0 4 0
R584
C702
W0
36
W 0 3 7
W038
C L 0 0 1
C L 0 0 2
Y903
Y 9 0 2
Y 9 0 1
Y906
W 0 9 9
K002
R 9 0 5
HS971
D 5 5 4
K 6 0 1
R902
R118
D720
D721
Y 7 0 3
D 9 2 8
D 9 2 9
Y701
Y601
Y001
W 0 9 8
Y 7 0 2
C613
PATTERN DIAGRAMSMAIN PWB PATTERN
FRONT
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MODEDC (V)
PIN NO.MODE
DC (V)PIN NO.
IC421
1 3.7
2 25.9
3 1.6
4 0
5 0
6 25.9
7 3.7
IC601
1 19.0
2 0
3 0
4 0
5 9.7
6 0.8
7 0
8 20.1
9 13.3
IC701
1 NC
2 NC
3 5.1
4 0
5 5.1
6 2.2
7 2.0
8 0
9 5.1
10 0
11 0
12 1.0
13 2.0 14 5.5
15 4.0
16 4.7
17 7.9
18 0
19 2.5
20 2.4
21 2.5
22 3.8
23 2.4
24 2.5
25 0
26 0
27 4.5
28 0
29 3.2
30 0
31 3.2
32 3.9
33 0
34 0
35 0 36 0
37 2.1
38 0
39 0.3
40 0
41 1.9
42 2.0
43 0
44 2.3
45 2.6
46 2.3
47 4.8
48 2.0
49 3.3
50 0
51 2.0
52 2.1
53 0
54 0
55 5.1
56 5.0
57 5.1 58 5.1
59 5.1
60 5.1
61 0
62 NC
63 5.1
64 0
IC702
1 0
2 0
3 0
4 0
5 5.1
6 5.1
7 0
8 5.1
IC704
1 4.9
2 5.1
3 0
IC921
1 307.5
2 NC
3 0
4 0
5 31.9
6 3.6
7 0.8
IC971
1 15.5
2 8.9
3 0
4 4.7
IC972
1 0
2 7.3
3 5.0
IC973
1 5.1
2 0
3 15.5
Q101 1.5
E 8.9
C 2.2
B
Q102
E 0
C 0
B 4.9
Q401
E 0
C 0 B 4.5
Q402
E 0
C 4.9
B 0
Q521
E 0
C 9.9
B 0.3
Q522
E 0
C 115.3
B 0
Q562
E 0
C 5.1
B 0
Q563
E 115.7
C 45.9
B 115.6
Q601E 15.3
C 0
B 15.4
Q602
E 0
C 0
B 0
Q603
E 0
C 0
B 0
Q604
E 0
C 0
B 0
Q605
E 0
C 14.5
B 0
Q710
E 5.1
C 5.1 B 4.5
Q801
E 3.3
C 0
B 2.6
Q802
E 0
C 0.4
B 0
TU001
1 4.3
2 NC
3 0
4 5.1
5 5.1
6 4.9
7 4.9
8 NC
9 34.1
10 NC
11 0
MODEDC (V)
PIN NO.
Q351
E 1.5
C 136.9
B 2.0
Q352
E 1.4
C 142.5
B 1.9
Q353
E 1.6
C 134.6
B 2.1
Q354
E 8.7
C 0
B 8.9
<MAIN PWB> <CRT SOCKET PWB>
VOLTAGE CHARTS
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WAVEFORMS
-MAIN PWB-(SHEET1)
-CRT SOCKET PWB-
IC701-50
(H)
IC701-51
(H)
IC701-52
(H)
IC701-6
(1µs)
IC701-45
(H)
IC701-16
(V)
3.0 Vp-p 3.0 Vp-p 3.2 Vp-p 4.0 Vp-p 3.0 Vp-p
2.0 Vp-p
3.0 Vp-p
IC701-12
(H)
IC701-13
5.0 Vp-p
(H)
IC421-1
0.5 Vp-p
(V)
IC421-3
25 Vp-p
(V)
IC421-5
60 Vp-p
(V)
IC421-6
30 Vp-p
(V)
Q521-C
38 Vp-p
(H)
Q521-B
1.0 Vp-p
(H)
Q522-C
1000Vp-p
(H)
Q522-B
2.0 Vp-p
(H) (H)(H)
T522-5
220 Vp-p
T522-9
220Vp-p
(H)
T522-7
25 Vp-p
Q351-C Q352-C Q353-C
(H)
90 Vp-p90 Vp-p
(H) (H)
100 Vp-p
(SHEET2)
(SHEET1)
7/17/2019 JVC AV-1400AE AV-14A17 AV-14AMG7.pdf
http://slidepdf.com/reader/full/jvc-av-1400ae-av-14a17-av-14amg7pdf 10/10
(No.YA528)
Display Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
Victor Company of Japan, Limited
Printed in Ja
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