Sony CX-JN44 / JAX-S44 Service Manual ▷ View online
41
41
CX-JN44
C403
R441
C441
R467
R491
D483
R492
R493
R494
C488
Q489
C447
C448
C444
R446
R495
R442
C489
C492
R445
C443
C451
C453
R459
R453
R460
R458
R457
C442
R496
Q484
Q483
R485
Q481
Q482
C481
R466
R482
C486
R481
R489
Q487
R487
Q485
R488
C487
Q486
C407
C408
C402
C404
C411
EP401
CN442
R407
L441
R461
R462
L442
RY441
R486
R402
CN441
EP402
EP491
R454
C454
R456
C452
R465
R455
JW407
JW
4
01
JW
40
2
D401
D443
R484
R483
D482
Q488
TH441
JW403
JW404
D481
D442
D441
R411
JW441
C445
R412
C446
JW442
Q442
Q441
R490
JK441
R401
R413
R447
IC441(1/2)
IC441(2/2)
R448
R452
R451
R443
R444
R414
C406
C405
0.1
100V
1k
10
50V
33k
22k
1SS133T-72
1k
33k
2.2k
22
35V
2SC1841
22
35V
22
35V
1000p
1k
1
1k
100
100V
0.01
1k
1000p
0.1
0.1
47k
10
1/2W
47k
22k
22k
10
50V
100
2SC2785
2SC2785
100k
2SC2785
2SC2785
100
10V
10V
56k
10k
2.2
50V
50V
4.7k
4.7k
2SC2785
33k
2SA1175
22k
4.7
50V
50V
2SC2785
0.01
0.01
0.01
0.1
100V
0.01
3P
100
1/2W
10 1/2W
10 1/2W
100k
100k
13P
10
1/2W
0.1
1k
0.1
47k
1k
D10XB20
1SS133
56k
22
1SS133
2SC2785
1SS133
1SS133
1SS133
2.2k
100p
2.2k
100p
2SC1841
2SC1841
4.7k
4P
100k
10k
47k
STK403-130
STK403-130
47k
0.22
5W
0.22
5W
47k
47k
10k
3300
63V
3300
63V
AC-1
AC-1
GND
NC
L-OUT
SP-GND
R-OUT
AMP-A-GND
RELAY B+
PWR GND
STK MUTE
PROTECT
AC-3
GND(AC-3,RELAY)
UNREG.16V
IN-R
IN-L
(CHASSIS)
(CHASSIS)
POWER AMP
SWITCH
STANDBY
OVER LOAD
DETECT
OVER LOAD
DETECT
DC DETECT
Q481,482
Q483,484
THERMAL
DETECT
DETECT
PROTECT
PROTECTOR
Q485,487
Q486,488
L
R
IMPEDANCE
SPEAKER
USE 6
−16Ω
6-19. SCHEMATIC DIAGRAM – POWER AMP Section –
(Page 43)
(Page 34)
42
42
CX-JN44
JW900
JW926
JW929
JW930
JW917
F904
CN907
F905
F906
F907
R908
C908
C909
R903
D906
R904
C910
Q902
JW909
C906
CN905
D908
C925
CN904
C911
CN906
R902
C920
C921
C924
C923
C926
C922
JW918
JW920
JW921
JW922
JW923
JW924
JW903
D902
JW906
JW910
CN901
CN902
C903
JW902
RY901
D901
CN903
PT902
D905
D903
C904
C905
D904
PT901
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
∗
MAIN POWER
TRANSFORMER
1
1
3
2
1-861-483-
15
(15)
POWER
BOARD
CN442
H
MAIN
BOARD
CN303
G
1
3
1
10
B
E
C
(CHASSIS)
TRANS BOARD
SUB POWER
TRANSFORMER
1
2
W001
(AC IN)
1-861-484-
15
(15)
1
SUB TRANS BOARD
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
1
3
2
6-20. PRINTED WIRING BOARDS – TRANS Section –
(Page 40)
(Page 36)
•
See page 25 for Circuit Boards Location.
:Uses unleaded solder.
• Semiconductor
Location
Ref. No.
Location
D901
B-9
D902
A-8
D903
A-8
D904
A-8
D905
A-8
D906
B-5
D908
B-4
Q902
C-5
43
43
CX-JN44
CN907
CN905
C909
R903
CN902
CN906
C906
D906
C910
C
9
2
6
C
9
2
5
C
9
2
4
C
9
2
2
C
9
2
3
C
9
2
1
C
9
2
0
C911
PT902
D902
D904
D903
D905
JW909
PT901
JW917
D908
R908
F906
F907
C908
Q902
JW906
F904
F905
10P
3P
10
50V
12k
3P
3P
0.1
MTZJ-T72
-27D
100
50V
50V
0
.1
0
.1
0
.1
0
.0
1
0
.0
1
0
.0
1
0
.0
1
1000
25V
10EDB40
10EDB40
10EDB40
10EDB40
10EDB40
1
3.15A
125V
3.15A
125V
220
63V
63V
2SA1932
8A
125V
8A
125V
VP
STBY-RELAY
EVER +10V
D-GND
AC-1
AC-1
GND
STBY-RELAY
EVER +10V
D-GND
NC
(CHASSIS)
SUB POWER
TRANSFORMER
BUILT IN TRANSFORMER
NOT REPLACEABLE:
∗
TRANSFORMER
MAIN POWER
AC3
AC3
AC4
AC4
VF2
VF1
-27V REGULATOR
R904
1k
R902
3.3M
1/2W
3.3M
1/2W
JW903
CN904
CN903
NEUTRAL
LIVE
2P
2P
RY901
D9
01
1
S
S
13
3
CN901
W001
2P
(AC IN)
JW910
JW902
6-21. SCHEMATIC DIAGRAM – TRANS Section –
(Page 41)
(Page 35)
44
44
CX-JN44
•
Waveforms
– BD Board –
– MAIN Board –
– PANEL Board –
Approx.
400 mVp-p
400 mVp-p
Approx.
200 mVp-p
200 mVp-p
0.6 Vp-p
59
µ
s
3.4 Vp-p
1
IC101
w;
(TEI)
(CD Play Mode)
0.1 V/DIV 2 ms/DIV
2
IC101
ws
(FEI)
(CD Play Mode)
0.1 V/DIV 2 ms/DIV
3
IC101
ek
(RFACO)
(CD Play Mode)
0.2 V/DIV 0.5 µs/DIV
4
IC101
us
(XTAO)
1 V/DIV 0.1 µs/DIV
13
µ
s
38 Vp-p
5
L101
5
(Rec Mode)
10 V/DIV 5 µs/DIV
30.5
µ
s
3.2 Vp-p
1
µ
s
3.2 Vp-p
qa
IC601
qd
(I-XT2)
1 V/DIV 20 µs/DIV
qs
IC601
qh
(CF2)
1 V/DIV 0.1 µs/DIV
•
IC Block Diagrams
– BD Board –
IC101 CXD3058AR
XRST
SERVO
INTERFACE
30
RFDCO
32
AC_SUM
33
EQ_IN
31
PDSENS
29
AVDD4
85
LMUT
86
XTSL
87
IOVSS0
88
XTACN
89
SQSO
90
SQCK
91
97
98
SBSO
92
93
94
95
96
99
EXCK
1
MIRR
2
DFCT
3
FOK
9
SFDR
10
SRDR
11
TFDR
12
TRDR
13
FFDR
14
FRDR
18
E
19
F
25
A
26
B
27
C
28
D
20
TEI
22
FEI
21
TEO
23
FEO
24
VC
5
LOCK
6
MDP
7
SSTP
4
VSS
8
IOVSS1
15
IOVDD1
16
AVDD0
17
AVSS0
64 EMPH
62 BCK
63 VDD
67 DOUT
65 EMPHI
66 IOVDD2
60 VSS
59 LRCK
61 PCMD
69 TES1
70 IOVSS2
73 XTAI
71 XVSS
74 XVDD
75 AVDD1
72 XTAO
68 TEST
MIRR
DFCT
FOK
TE
FE
SUM
PWM
GENERATOR
SERVO
DSP
A/D
CONVERTER
DC/DC
CONVERTER
ASYNMMETRY
CORRECTOR
SUB CODE
PROCESSOR
ERROR
CORRECTOR
32k
RAM
D/A
INTERFACE
D/A
COVERTER
SELECTOR
DIGITAL OUT
CPU INTERFACE
CLOCK
GENERATOR
SERVO
AUTO
SEQUENCER
LPF
LPF
DIGITAL
CLV
VC
ATT
36
RFC
EQ
38
RFACO
AMP
34
LD
35
PD
39
RFACI
40
AVDD3
41
BIAS
53
DDVRSEN
54
AVSS5
51
AVDD5
55
DDCR
56
BCKI
52
DDVROUT
42
ASYI
44
VPCO
45
VCTL
46
AVSS3
43
ASYO
DIGITAL
PLL
EFM
DEMODULATOR
48
FILO
47
CLTV
49
FILI
50
PCO
37
AVSS4
APC
105
XPCK
104
XUGF
103
WFCK
102
ATCK
SYSM
VSS
DATA
XLAT
VDD
100
SENS
CLOK
101
SCLK
106
GFS
109
VDD
108
SCOR
107
C2PO
110
C4M
112
COUT
111
WDCK
77 VREFL
78 AVSS1
79 AVSS2
76 AOUT1
81 AOUT2
82 AVDD2
83 IOVDD0
84 RMUT
80 VREFR
57 PCMDI
58 LRCKI
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