DOWNLOAD Sony CX-JV77 / JAX-V77 Service Manual ↓ Size: 6.32 MB | Pages: 85 in PDF or view online for FREE

Model
CX-JV77 JAX-V77
Pages
85
Size
6.32 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cx-jv77-jax-v77.pdf
Date
PREV: Sony JAX-V77 Service Manual

Sony CX-JV77 / JAX-V77 Service Manual ▷ View online

CX-JV77
45
45
CX-JV77
6-23. SCHEMATIC  DIAGRAM  – POWER AMP Section –
The components identified by mark 
0
 or dotted
line with mark 
0
 are critical for safety.
Replace only with part number specified.
RY441
R473
R470
R459
D441
D442
R475
C463
R471
Q489
R462
L442
R461
L441
JW406
JW405
1.7
µ
H
1.7
µ
H
D443
R488
R481
Q487
Q486
C487
D482
R489
R490
Q488
R482
C486
Q485
Q481
C481
Q484
Q483
R486
R485
R466
R465
D481
R460
R457
Q441
R454
C454
C452
C453
R453
C451
R458
R449
R478
Q442
R456
R450
R477
R476
R495
C462
R443
R444
R442
C442
C444
C443
C441
R441
C492
R401
R403
R404
R402
C404
R410
R409
C403
C414
C413
CN442
CN441
EP401
EP402
Q491
R474
R455
R467
R496
C461
R468
JW411
JW409
TH441
R483
R484
JW401
C402
D401
D402
C405
C409
C410
C406
R487
Q482
R447
JW403
JW404
D446
R448
R469
R412
JW442
C446
C448
C447
R413
R414
R445
R446
EP491
D445
R411
JW441
C445
R472
Q490
IC441(1/2)
IC441(2/2)
R407
D444
22k
33k
100k
1SS133T-72
1SS133T-72
10k
470
6.3V
68k
2SC1841
10
1/2W
10
1/2W
1SS133T
22k
4.7k
2SC2785
2SC2785
4.7
50V
1SS133T
-72
4.7k
4.7k
2SC2785
10k
2.2
50V
2SA1175
2SC2785
100
10V
2SC2785
2SC2785
100k
100k
56k
47k
1SS133T
100k
15k
2SC1841
10
1/2W
0.1
0.1
0.1
10
1/2W
0.1
15k
0.22
5W
10k
2SC1841
1k
0.22
5W
100
15k
1
47
100V
56k
56k
1k
10
50V
1000p
1000p
10
50V
1k
0.01
100k
100k
100k
100k
0.1
100V
100k
100k
0.1
100V
0.1
0.1
5P
13P
2SA1207
2.2k
1k
3.3k
1W
100
47
100V
3.3k
1W
22
56k
0.01
D10XB20
D10XB20
3300
71V
3300
50V
3300
50V
3300
71V
33k
2SC2785
56k
MTZJ-T-72
-16B
56k
33k
2.2k
100p
47
50V
47
50V
10k
10k
1k
1k
MTZJ-T-72-16B
2.2k
100p
33k
2SC1841
STK412-240
STK412-240
100
1/2W
1SS133T
-72
GND
AC-VH
AC-VL
AC-VL
AC-VH
L-OUT
SP-GND
R-OUT
IN-R
AMP-A-GND
IN-L
RELAY B+
PWR GND
STK MUTE
PROTECT
AC-3
GND(AC-3,RELAY)
UNREG.16V
(CHASSIS)
(CHASSIS)
Q486,488
PROTECTOR
Q485,487
PROTECT
DETECT
Q481,482
DC DETECT
Q483,484
THERMAL
DETECT
DETECT
OVER LOAD
DETECT
OVER LOAD
(CHASSIS)
POWER AMP
STANDBY
SWITCH
Q490,491
LEVEL SHIFT
8P
JK441
L
R
IMPEDANCE
USE 6-16
Ω
FRONT SPEAKER
L
R
IMPEDANCE
USE 24
Ω
SURROUND SPEAKER
H
E
(Page 47)
(Page 47)
CX-JV77
46
46
CX-JV77
6-24. PRINTED  WIRING  BOARDS  – TRANS Section –
•
See page 27 for Circuit Boards Location.
 : Uses unleaded solder.
JW905
PT901
JW928
JW929
JW930
JW931
JW932
JW933
JW934
F909
JW917
F908
CN907
F905
F906
F907
C906
R908
R904
C910
D906
R903
C908
Q902
JW909
W901
CN906
CN905
CN904
F904
C911
C909
D908
 
JW920
JW921
JW922
JW923
        
JW911
JW924
CN902
CN901
RY901
D901
PT902
CN903
D904
D902
D905
D903
JW912
S901
JW925
JW901
TRANS BOARD
1-861-487-
21
(21)
SUB TRANS BOARD
1-861-488-
21
(21)
1
2
4
3
1
NOT REPLACEABLE:
BUILT IN TRANSFORMER
∗
MAIN POWER
TRANSFORMER
B
E
C
(CHASSIS)
1
1
5
10
MAIN
BOARD
CN303
G
POWER
BOARD
CN442
H
SUB POWER
TRANSFORMER
1
1
3
1
4
2
W001
(AC IN)
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
220V
220V
230 – 240V
230 – 240V
120V
120V
VOLTAGE SELECTOR
(Page 44)
(Page 40)
•
Semiconductor
Location
Ref. No. Location
D901
B-9
D902
A-8
D903
A-8
D904
A-8
D905
A-8
D906
C-6
D908
B-4
Q902
B-5
CX-JV77
47
47
CX-JV77
6-25. SCHEMATIC  DIAGRAM  – TRANS Section –
CN902
CN906
C911
JW925
RY901
CN901
W001
PT902
D902
D904
D903
D905
JW905
D901
CN904
CN903
S901
3P
3P
1000
25V
2P
10EDB40
10EDB40
10EDB40
10EDB40
1SS
133
NEUTRAL
LIVE
STBY-RELAY
EVER +10V
D-GND
220V
240V
4P
4P
VOLTAGE SELECTOR
120V
220V
(AC IN)
SUB POWER
TRANSFORMER
CN907
C909
R903
C906
D906
C910
JW917
D908
R908
C908
Q902
10P
10
50V
12k
0.1
MTZJ-T72
-27D
100
50V
10EDB40
1
220
63V
2SA1932
VP
STBY-RELAY
EVER +10V
D-GND
(CHASSIS)
W901
BUILT IN TRANSFORMER
NOT REPLACEABLE:
∗
AC3
AC3
AC4
AC4
VF2
VF1
-27V REGULATOR
R904
1k
CN905
5P
AC-VL
AC-VH
AC-VL
AC-VH
GND
PT901
TRANSFORMER
MAIN POWER
F906
F907
F905
T3.15A
250V
T3.15A
250V
T6.3A
250V
F904
T6.3A
250V
F908
T8A
250V
F909
T8A
250V
JW912
JW909
120V
220V
240V
JW901
230-240V
H
G
(Page 45)
(Page 39)
CX-JV77
48
48
CX-JV77
•
Waveforms
– VMP43GY Board –
200 mV/DIV, 500 ns/DIV
100 mV/DIV, 1 
µ
s/DIV
200 mV/DIV, 500 ns/DIV
– BD49 Board –
1 V/DIV, 200 ns/DIV
1 V/DIV, 200 ns/DIV
IC103 
qg
 (RFAC)
(CD Play Mode)
2
IC103 
qh
 (FE)
(CD Play Mode)
3
IC103 
qk
 (TE)
(CD Play Mode)
1
IC504 
1
 (BCK),
IC505 
<x/c
 (AUDBCK)
ea
IC505 
os
 (L CDBCK),
od
 (BCK)
ej
1 V/DIV, 10 
µ
s/DIV
500 mV/DIV, 5 
µ
s/DIV
IC504 
3
 (LRCK),
IC505 
<x/v
 (AUDLRCK)
es
IC505 
<zcc
  (MDP)
(CD Play Mode)
ek
1 V/DIV, 20 ns/DIV
1 V/DIV, 20 ns/DIV
IC504 
qh
 (MCLK),
IC505 
<x/b
 (AUDXCLKO)
ed
IC505 
<zb/
  (XTAO)
el
200 mV/DIV, 20 
µ
s/DIV
200 mV/DIV, 500 ns/DIV
IC505 
6
 (CPSIG)
(VCD Play Mode) (Color Bar)
ef
IC505 
<zn/
  (RFDC)
(CD Play Mode)
r;
500 mV/DIV, 20 
µ
s/DIV
200 mV/DIV, 500 ns/DIV
IC307 
6
 (BUFOUT)
(VCD Play Mode) (Color Bar)
eg
IC505 
<znx
  (TE)
(CD Play Mode)
ra
1 V/DIV, 10 
µ
s/DIV
100 mV/DIV, 1 
µ
s/DIV
IC505 
ij
 (L CDLRCK)
ik
 (LRCK)
eh
IC505 
<znv
  (FE)
(CD Play Mode)
rs
500 mV/DIV, 500 ns/DIV
IC505 
<zmc
  (RFAC)
(CD Play Mode)
rd
1 V/DIV, 20 ns/DIV
IC505 
<x/m
  (CLKB)
rf
10 V/DIV, 5 
µ
s/DIV
L101 
5
 (REC Mode)
5
1 V/DIV, 10 
µ
s/DIV
IC601 
qd
 (I-XT2)
qa
1 V/DIV, 0.1 
µ
s/DIV
IC601 
qh
 (CF2)
qs
– MAIN Board –
– PANEL Board –
800 mVp-p
Approx.
280 mVp-p
Approx.
740 mVp-p
22.7 
µ
s
2.7 Vp-p
59.5 ns
3.4 Vp-p
H
580 mVp-p
H
2.1 Vp-p
474 ns
3.3 Vp-p
22.7 
µ
s
2.7 Vp-p
474 ns
3.3 Vp-p
7.6 
µ
s
Approx.
1.5 Vp-p
29.5 ns
3.3 Vp-p
0.75 
±
 0.1 Vp-p
Approx.
350 mVp-p
Approx.
250 mVp-p
1.05 
±
 0.3 Vp-p
37 ns
2.9 Vp-p
13 
µ
s
38 Vp-p
30.5 
µ
s
3.2 Vp-p
1 
µ
s
3.2 Vp-p
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