Sony BKM-21D Maintenance Manual page 66

CN1(2/2)
BD
(2/4)
ANALOG
Q401
ANALOG A
IN BUFF
+5V-2
4
OUT
4/4
V-A
3/4,4/4 INT PY
Q501
ANALOG B
IN BUFF
+5V-2
5
OUT
4/4 V-B
4/4 CODED PB
Q601
ANALOG C
IN BUFF
+5V-2
6
OUT
4/4 V-C
4/4 CODED PR
+5V-2
Q432
4/4
YPBPR
+5V-2
Q606
4/4 RGB
CN2(2/3)
IC12
+6V 7A
+5V
+6V 7B +5V-2
REG
IC13
-6V 6A
-5V
-6V 6B -5V-2
FROM
REG
MONITOR
-15V 4A -15V-2
FB105
-15V 4B
+5V-7
FL800
+5V
D5V 29A EMI
IC91
D5V 29B
+3.3V
+3.3V
REG
IC92
+3.3V
+3.3V-2
REG
IC93
+3.3V
+3.3V-3
REG
BD (2/4)
Q433 Q403
VIDEO A
BUFF
Q402 Q405,406 Q407 Q452 Q454
BYPASS
BUFF BUFF
SWITCH
+5V-2
Q451
Q434 Q420,421 Q440,441
Y
AMP
BUFF
+5V-2
Q605 Q607
G
BUFF
Q408
BUFF
Q505-507
Q522 Q503
BUFF
VIDEO B
BUFF
DELAY DL501
Q502
4/4
Q611 Q612
B
BUFF
Q523 Q520,521 DL402
PB PB
BUFF DELAY
Q624 Q603
VIDEO C
BUFF
Q602
Q613 Q614
C
BUFF
Q625 Q640,641 DL403
PR PR
BUFF DELAY
+5V-2
Q812
Q810
BUFF
Q811
4/4
BYPASS
BUFF
4/4 ANA V
3/4 D2DA V
4/4 D2
7-2
BD (2/4)
TP101
V-I/O
IC401
Q413 Q415
VIDEO
VIDEO
1 5
BUFF
GAIN
CONTROL +5V-2
Q414 Q410
3
Q444 Q446
BUFF +5V-2
Q411
Q443
4/4 EXT V OUT
4/4 V LEVEL
4/4
INT V OUT
DL401 Q409
Q508,509 Q512 Q514 IC502 Q515,516
Y
BUFF
Y
Y
DELAY BUFF 1 5
AMP GAIN
CONTROL
IC501
+5V-2
Q513 3
APERTURE
1 5
GAIN
CONTROL
3
DL502
APT 4/4 Y TH 4/4 Y LEVEL
Q418,419 Q404 Q450 IC601 Q615
PB
PB
BUFF 1 5
AMP GAIN
CONTROL
3
4/4 PB LEVEL
Q422,423 Q424 Q425 IC602 Q619,620
PR
PR
BUFF 1 5
AMP GAIN
CONTROL
3
4/4 PR LEVEL
+5V-2
Q623
1/4,4/4 OE
7-2
INT V 1/4
CN2 (1/3)
8B VIDEO
11B Y/G
Q412
13B PB/B
BUFF 15B PR/R
TO/FROM
MONITOR
1/4 HS 20A HS
1/4 VS 20B VS
3/4 H BLK 25A H-BLK
TP201
Y-OUT
Q517,518
Y
BUFF
TP501
Q616 PB-OUT
PB
BUFF
TP601
Q621,622 PR-OUT
PR
BUFF
BKM-21D