Sony CX-JN55 / JAX-N55 Service Manual ▷ View online
CX-JN55
41
41
R441
C441
R467
R491
D483
R492
R493
R494
C488
Q489
C447
C448
C444
R446
R495
R442
C489
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
EP401
CN442
R407
R461
R462
RY441
R486
R402
CN441
EP402
R454
C454
R456
C452
R465
R455
JW407
JW
401
JW
402
C406
C405
D401
D443
R484
R483
D482
Q488
TH441
JW403
R451
R447
JW404
R452
D481
D442
D441
R444
R443
R411
JW441
C445
R413
R412
R414
C446
JW442
IC441(1/2)
IC441(2/2)
R448
Q442
Q441
R490
JK441
R401
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
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
3P
100
1/2W
R464
R463
10
1/2W
10 1/2W
L441
1.7
µH
L442
1.7
µH
10 1/2W
100k
100k
13P
10
1/2W
0.1
1k
0.1
47k
1k
2200
50V
2200
50V
D10XB20
1SS133
56k
22
1SS133
2SC2785
0.22
2W
33k
0.22
2W
1SS133
1SS133
1SS133
33k
33k
2.2k
100p
4.7k
2.2k
4.7k
100p
STK403-090
STK403-090
33k
2SC1841
2SC1841
4.7k
4P
100k
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)
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
C403
0.1
C460
1000p
C456
0.1
C458
0.1
10
1/2W
C455
0.1
C457
0.1
C459
1000p
C491
0.001
(CHASSIS)
6-20. SCHEMATIC DIAGRAM – POWER AMP Section –
(Page 43)
(Page 34)
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
CX-JN55
42
42
JW900
PT901
JW926
JW929
JW930
C911
CN905
CN904
CN906
JW908
Q902
C910
R904
D906
R903
C909
C908
R908
C906
JW917
F904
CN907
F905
F906
F907
C923
C926
C922
C925
C924
C921
C920
JW918
JW921
JW922
JW920
JW924
CN903
D902
D904
JW902
D903
D905
PT902
CN901
JW910
D901
RY901
CN902
D908
JW923
JW906
JW903
1-861-500-
14
(14)
TRANS BOARD
1
2
POWER
BOARD
CN442
H
MAIN
BOARD
CN303
G
SUB TRANS BOARD
1-861-501-
14
(14)
1
2
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
3
1
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
∗
MAIN POWER
TRANSFORMER
B
E
C
1
3
1
10
(CHASSIS)
SUB POWER
TRANSFORMER
3
1
1
2
W001
(AC IN)
6-21. PRINTED WIRING BOARDS – TRANS Section –
•
See page 25 for Circui Boards Location.
: Uses unleaded solder.
(Page 40)
(Page 36)
•
Semiconductor
Location
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
CX-JN55
43
43
CN907
CN905
C909
R903
R904
CN902
CN906
C906
D906
C910
C926
C925
C924
C
922
C
923
C
921
C920
C911
PT902
D902
D904
D903
D905
JW908
PT901
JW917
D908
R908
F905
F904
F906
F907
C908
Q902
JW906
10P
3P
10
50V
12k
1k
3P
3P
0.1
MTZJ-T72
-27D
100
50V
50V
0.1
0.1
0.1
0.01
0.01
0.01
0.01
1000
25V
10EDB40
10EDB40
10EDB40
10EDB40
10EDB40
1
T6.3A
250V
T6.3A
250V
T3.15A
250V
T3.15A
250V
220
63V
63V
2SA1932
VP
STBY-RELAY
EVER +10V
D-GND
AC-1
AC-1
GND
220V
STBY-RELAY
EVER +10V
D-GND
(CHASSIS)
SUB POWER
TRANSFORMER
BUILT IN TRANSFORMER
NOT REPLACEABLE:
∗
TRANSFORMER
MAIN POWER
AC3
AC3
AC4
AC4
VF2
VF1
-27V REGULATOR
JW903
CN903
CN904
NEUTRAL
LIVE
2P
2P
CN901
W001
2P
(AC IN)
JW910
RY901
D
901
1S
S133
JW902
6-22. SCHEMATIC DIAGRAM – TRANS Section –
(Page 41)
(Page 35)
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
CX-JN55
44
44
•
IC Block Diagrams
– CD Board –
IC101
CXD3059AR
SERVO
INTERFACE
32
RFDCO
34
AC_SUM
35
EQ_IN
33
PDSENS
31
AVDD4
91
LMUT
92
NC
93
XTSL
94
IOVSS0
95
XTACN
96
SQSO
97
SQCK
98
SBSO
99
EXCK
1
MIRR
2
DFCT
3
FOK
9
SFDR
10
SRDR
11
TFDR
12
TRDR
13
FFDR
14
FRDR
19
E
20
F
26
A
27
B
28
C
29
D
30
NC
21
TEI
23
FEI
22
TEO
24
FEO
25
VC
5
LOCK
6
MDP
7
SSTP
4
VSS
8
IOVSS1
18
NC
15
IOVDD1
16
AVDD0
17
AVSS0
68 EMPH
66 BCK
67 VDD
71 DOUT
69 EMPHI
70 IOVDD2
64 VSS
63 LRCK
65 PCMD
75 NC
73 TES1
74 IOVSS2
78 XTAI
76 XVSS
79 XVDD
80 AVDD1
77 XTAO
72 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
39
RFC
EQ
41
RFACO
AMP
36
LD
37
PD
42
RFACI
43
AVDD3
44
BIAS
56
DDVRSEN
57
AVSS5
59
NC
54
AVDD5
58
DDCR
60
BCKI
55
DDVROUT
45
ASYI
47
VPCO
48
VCTL
49
AVSS3
46
ASYO
DIGITAL
PLL
EFM
DEMODULATOR
51
FILO
50
CLTV
52
FILI
53
PCO
38
NC
40
AVSS4
APC
112
XPCK
111
XUGF
110
WFCK
109
ATCK
101
SYSM
100
XRST
103
VSS
102
DATA
104
XLAT
106
VDD
107
SENS
105
CLOK
108
SCLK
113
GFS
116
VDD
115
SCOR
114
C2PO
117
C4M
119
COUT
118
WDCK
120
NC
82 VREFL
83 AVSS1
84 AVSS2
81 AOUT1
86 AOUT2
87 AVDD2
88 NC
89 IOVDD0
90 RMUT
85 VREFR
61 PCMDI
62 LRCKI
Approx.
800 mVp-p
800 mVp-p
59 ns
4.5 Vp-p
472 ns
4.5 Vp-p
22.8
µ
s
4.4 Vp-p
•
Waveforms
– MAIN Board –
– PANEL Board –
13
µ
s
38 Vp-p
30.5
µ
s
3.2 Vp-p
1
µ
s
3.2 Vp-p
1V/DIV, 10 ms/DIV
1V/DIV, 200ns/DIV
1V/DIV, 20ns/DIV
0.2V/DIV, 0.5 ms/DIV
– CD Board –
10V/DIV, 5 ms/DIV
1V/DIV, 10 ms/DIV
IC101
yd
(LRCK)
2
IC101
yh
(BCK)
3
IC101
uj
(XTAO)
4
IC101
ra
(RFACO)
1
L101
5
(REC Mode)
5
IC601
qd
(I-XT2)
qs
IC601
qh
(CF2)
qa
1V/DIV, 0.1 ms/DIV
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