Read Sony WX-VX55 / WX-VX55S Service Manual online
WX-VX55/VX55S
WX-VX55/VX55S
24
24
1 ANT1
2 FINL
19 FINR
3 RINL
18 RINR
4 VREF
7 OUT2
9 OUT1
9 OUT1
4 B2
AUDIO SELECT,
ELECTRONIC VOLUME
IC401
PJ601
(ANTENNA)
JAC1
AUX
TUX601
(TUNER UNIT)
POWER AMP/MULTI REGULATOR
IC100
SYSTEM CONTROL
IC801 (2/3)
PB AMP
IC301
LOADING MOTOR DRIVE
IC351
Q353,354
MECHANISM
BLOCK
M904
(CAPSTAN/REEL)
M905
(LOADING)
Q501
Q502
Q503
Q301
HP901
PB HEAD
FWD
REV
PB
(L-CH)
PB
(R-CH)
PB
(L-CH)
PB
(R-CH)
CNP901
3
17
26
40
40
19
B1
2 A2
1 A1
1 A1
18 DATA
SOUT
CLK
CLK
BATT
6 C2
7 DP1
9 DP2
8 DN
9 DP2
8 DN
5 C1
R-CH
4
3
3
10
VCC
11
TU VDD
15
E2P VDD
13
TU_SCL
14
TU_SDA
6
S_METER
5
QUALITY
7
TU_MUTE
16
E2P_SCL
17
E2P_SDA
6
OUT L
15
OUT R
12
MS
10
FOR/REV
9
MUTE
8
120/70
7
MSG
3
IN1
4
IN2
45 VSM
44 TU_QUAL
30 SA_DATA
SA_IN
SA_CLK
AU+8V
TU+5V
U COM+3.3V
TU+5V
U COM+3.3V
15 TU_ATT
25 EEP_SCK
24 EEP_SIO
24 EEP_SIO
9
10 N-ROUT
12 TAPEATT
13 MTLON
14 AMSON
85 LM_EJ
LM_EJ
POS0
POS0
LM –
LM +
+B(8.5V)
MECH_B+
POS1
POS2
POS3
REEL1
POS2
POS3
REEL1
C-MOTOR
BATT
POS1
POS2
POS3
REEL1
POS2
POS3
REEL1
LM_LO
78 LM_LO
74 POS0
76 POS1
71 POS2
70 POS3
66 REL_T
76 POS1
71 POS2
70 POS3
66 REL_T
88 CM_ON
L
R
CD-L
R-CH
22
24
OUTS1
OUTR1
23
OUTR2
R-CH
25
26
26
OUTF1
OUTF2
R-CH
L
R
5
3
3
9
7
7
29
27
27
SW1
R-CH
SW2
BATT
30
37
37
REG1
35
VP
6
VP2
20
VP1
REG2
31
33
33
REG3
REG4
REG4
34
REG5
TU+5V
MECH_B+
28
MUTE
2 SDA
AU+8V
U-COM+3.3V
SERVO+3.3V
MECHA+6V
ILL+B
U-COM+3.3V
SERVO+3.3V
MECHA+6V
ILL+B
4 SCL
SDA
SCL
SCL
16 ACGND
22 STB
25 DIAG
22 STB
25 DIAG
AU+8V
15
13
7
10
12
11
16
1
9
9
2
4
3
5
6
6
31
30
30
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
SDA
33
IIC_SCK
34
IIC_SIO
6
E_VOL_ATT
1
LINE ATT
5
BEEP
31
PW_STB
56
DIAG
53
BU_IN
67
PARKING_IN
12 IN3
FL+
FL-
FL-
RL+
RL-
RL-
FR+
FR-
RR+
RR-
FR-
RR+
RR-
AMP-REM
ANT-REM
ANT-REM
ACC
PAK_BK
11 IN1
MUTE
Q404
MUTE
Q405
REAR
AUDIO OUT
MUTE CONTROL
Q400,401
58
UNI_SI
59
UNI_SO
86
TAPEON
64
ACC DETECT
Q900
TU+5V REG
Q601
BATT
BATTERY
LEVEL
DETECT
Q902,906,907
B+ SWITCH
Q351,352
ATT
63
TEL_ATT
TEL-ATT DETECT
Q901
D400
D702
D701
F901
L
R
SUB
AUDIO OUT
R-CH
L
R
FRONT
AUDIO OUT
PJ401(2/2)
D915
D912
CD
SECTION
A
MUTE
CD
SECTION
B
BATT
: CD PLAY
: FM
: AM
: TAPE PLAY
MUTE
Q406
M
M
M
M
• Signal Path
• R-CH is omitted due to same as L-CH.
AMSIN
ACC_IN
OUT3+
OUT3–
OUT3–
OUT1+
OUT1–
OUT1–
6-2 . BLOCK DIAGRAM – MAIN Section –
(Page 23)
(Page 23)
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