Sony BVW-55 Maintenance Manual page 659

DC-97,W1-W3
CN-1662,4-1to3
EXT
AU-262,11-21,22
AFM-16,21-21,22
APR-42,31-21,22
SY-272,41-61
PSW-63,1-1
BVW-55
Block diagram
IC31-36
CN2
UNSW 12V
1-3
IC21-26
CN1
BATT
1-3
IC20
VOLTAGE
DETECT
IC10
CN2
INT IC8,12,13,16
5
POWER
SEL BATT
POWER
6 PATH
CONTROL
SELECT
+B
IC9
REG 5V-2
IC1
VOLTAGE
DETECT
CN900
EX DET
44
IC900,903,904
CN900
POWER
POWER ON RESET
99 ON
RESET
CN900
POWER SW
100
+3.3V +5V-1 +5V-2 -5V +6V-1 +6V-2
CN11 AU-262
CN21 AFM-16
CN31 APR-42
CN41 SY-272
CN51 MD-122
CN61 TG-191
CN71 SDI-23
CN81 DEC-97
CN91
VPR-59
CN101 DM-121
CN401
RP-107
CN901 SV-206
CN201
CN-1779
CN702 CP-317
CN600
CP-316
CN601
CN8 HP-88
RE-174 RE-174
Block diagram
IC4(2/2)
Q9 IC6
PWM
POWER
REF
VOLTAGE CONTROLLER
IC20
VOLTAGE
DETECTOR
R38-40
IC5(2/2)
OVER
Q3
PWM
CURRENT
POWER POWER
DETECT
CONTROL CONTROLLER
IC4(1/2)
PWM
POWER
CONTROLLER
IC7(1/2)
PWM
POWER
CONTROLLER
IC7(2/2)
PWM
POWER
CONTROLLER
IC5(1/2)
PWM
POWER
CONTROLLER
+12V AUDIO +12V -12V
-6V +8V
IC3(1/2)
(UNREG) GND (REG) (REG)
PWM
POWER
CONTROLLER
IC3(2/2)
PWM
POWER
CONTROLLER
IN USE
IC2(1/2)
NOT IN USE
PWM
IN USE(INOPERATIVE)
POWER
CONTROLLER
3-17 3-17
CN900
UNREG +12.0V
75-80
+6.0V-1 FB
Q101-104,IC101 L103,104,C108
CN900
SWITCHING LC REG +6.0V-1
45-50
DRIVER FILTER
+6.0V-1 DR 6V
-6.0V FB
Q202-204,IC201 L203,C208
CN900
REG -6.0V
SWITCHING LC
19-22
DRIVER FILTER
-6.0V DR
+6.0V-2 FB
Q301-304,IC301 L303,304,C308
CN900
REG +6.0V-2
SWITCHING LC
51-58
DRIVER FILTER
+6.0V-2 DR
+8.0V FB
Q402,403,IC401 L403,C408
CN900
SWITCHING LC REG +8.0V
67-74
DRIVER FILTER
+8.0V DR
+3.3V FB
Q351-354,IC351 L353,C358
CN900
REG +3.3V
SWITCHING LC
59-66
DRIVER FILTER
+3.3V DR
+5.0V-1 FB
Q501-504,IC501 L503,504,C508
CN900
REG +5.0V-1
SWITCHING LC
29-34
DRIVER FILTER
+5.0V-1 DR 5V
+5.0V-2 FB
Q551-554,IC551 L553,554,C558
CN900
SWITCHING LC REG +5.0V-2
35-40
DRIVER FILTER
+5.0V-2 DR
-5.0 FB
Q601-604,IC601 L603,C608
CN900
REG -5.0V
SWITCHING LC
23-26
DRIVER FILTER
-5.0V DR
+48 FB
Q701-704 R706,707,C705
CN900
PHANTOM +48.0V
SWITCHING RC
16
DRIVER FILTER
+48V DR
See Table
CP-316,600-2
SWITCHING REGULATOR
RE-174
LOT NO. 812-