Sony BVW-55 Maintenance Manual page 649

CN21
CH1 LNG PB SIG
AU-262,11-42 41
CN21
CH2 LNG PB SIG
AU-262,11-46 45
CH3 EE SIG
CH1 AFM PB
CH4 EE SIG
CH2 AFM PB
DM-121,101-80
SDI-23,61-97
SY-272,41-97 CN22
SIF2 SCK 11
APR-42,32-14 9
SIF2 AFM DAC CS
SY-272,42-1 14
SIF2 CMD
SY-272,41-98 10
DM-121,101-79
SDI-23,61-98
IC2,Q1
APR-42,32-13 CN21
REG +6V
+5V
25-28
REG
IC2,Q2
CN21
REG -6V
-5V
29-32
REG
IC3
POWER
5V-2
IC3
POWER
-5V-2
Q153
POWER
5V-2
Q154
POWER
-5V-2
BVW-55
Block diagram
Q201,202 IC205
SEL BUF
IC202 IC203 Q221 IC202
AMP VCA MUTE BUF
CH1 EE/PB(FET)
Q322
CH1 VCA CONT
MUTE
L:LNG PB MUTE
CONT
Q301,302 IC305
IC302 IC303 IC302 SEL BUF
AMP VCA MUTE BUF
Q321 CH2 EE/PB(FET)
IC404
CH2 VCA CONT Q401 IC404
AMP
SEL BUF
IC402 IC403 Q421 IC402
AMP VCA MUTE BUF
AFM EE/PB(FET)
Q522
CH3 VCA CONT MUTE
L:AFM PB MUTE
IC506 CONT
IC506
AMP
SEL BUF
IC502 IC503 IC502
Q501,502
AMP VCA MUTE BUF
Q521
CH4 VCA CONT
IC102
IC201
D/A CONV.
VCA
CLK VOUT1 CH1 VCA CONT
CONT
3 LDCS VOUT2
4 DIN VOUT3 RV201
DOUT VOUT4
IC301
VCA
CH2 VCA CONT
CONT
5V-2
RV301
IC401
VCA
-5V-2 CH3 VCA CONT
CONT
RV401
5V-3 IC501
SW
VCA
CH4 VCA CONT
Q4,5 IC4 CONT
H:P-SAVE EN
POWER
RV501
CONT
H:REC CONT IN
-5V-3
SW
Q100
5V-5 L:LNG PB MUTE
SW
IC103,104 IC100
Q151,152
H:P-SAVE EN
POWER
POWER
CONT
AFM POWER SAVE2
CONT
-5V-5
SW
AFM-16 (2/2) AFM-16 (2/2)
Block diagram
Q203,204 IC205
SEL BUF
Q303,304 IC305
SEL BUF
MON AFM/LNG(FET)
Q403
LNG CH1(LCH)
Q404
LNG CH2(LCH)
Q405
IC405
AFM CH1(LCH)
Q407
Q406 Q408,409 IC406
MIX/
SWAP
SEL BUF
AFM CH2(LCH)
MON FIX/VAR(FET)
Q503
Q508
IC505
Q509 IC406
Q507
LNG CH1(RCH) SEL BUF
MIX/
SWAP
Q504
Q677
5V
LNG CH2(RCH)
POWER
5V-2 5V-7 3.3V
SW
Q505
Q670 IC603
12V
POWER
BUF H:P-SAVE EN -12V
AFM CH1(RCH) CONT
IC108
Q506
Q678 AFM POWER SAVE1
POWER
-5V-2 -5V-7
SW
S701
AFM CH2(RCH)
Q163
Q102
POWER
5V-2 5V-6 L:AFM PB MUTE
SW
IC104,106
IC105
Q161,162
POWER
POWER
CONT
CONT
Q164
POWER
-5V-2 -5V-6
SW
3-7 3-7
CN22
CH1 A/D
19 APR-42,32-21
CH2 A/D
22 APR-42,32-24
CH3 A/D
25 APR-42,32-27
CH4 A/D
28 APR-42,32-30
IC400(2/2) IC401 FL400,401
CN21 CN601
CH 1/3 OUT
UNBAL
37 12 BUFFER FILTER
BAL
IC400(1/2) IC501 FL500,501
CN21 CN601
CH 2/4 OUT
UNBAL
33 9 BUFFER FILTER
BAL
IC1
BUFFER
CN21
HP RCH VR OUT IC2 J1
75 12
HP LCH OUT AMP
67 1
RV1
HP RCH OUT
73 4
HP LCH VR OUT AMP IC3 CN1
69 9
IC2 AMP 1
BUFFER
HP-88
IC1
IC700(2/2) IC801 FL800,801
CN21 CN601
MON LCH OUT
UNBAL
63 1 BUFFER FILTER
BAL
IC700(1/2) IC701 FL700,701
CN21 CN601
MON RCH OUT
UNBAL
59 4 BUFFER FILTER
BAL
CN21
REG +5V
17-20
CN21
REG +12V
9,10
REG -12V
11,12
H:P-SAVE EN
H:P-SAVE EN
IC107
L:METAL/H:OXIDE
H:REC CONT IN
CN400(2/2)
AUDIO
OUTPUT
CH-1/CH-3
CN400(1/2)
AUDIO
OUTPUT
CH-2/CH-4
CN601
AU +12V 5
CN601
AU -12V 8
HEADPHONE
SPEAKER
(MONO)
CN700(1/2)
MONITOR
OUTPUT
L
CN700(2/2)
MONITOR
OUTPUT
R
CP-316(2/2)
AFM REC/PB, PB AUDIO LEVEL CONTROL
AFM-16 (2/2)
LOT NO. 812-