Sony AVD-S50 Service Manual page 80

AVD-S50/S50ES
IC902 STR-F6238S (POWER Board) (US, CND Model)
IC902 STR-F6270D (POWER Board) (AEP, UK Model)
1
IC904 SI-8050JF (POWER Board)
REGULATOR
PROTECTOR
OSC RESET
+
–
COMPARATOR
+
–
ERROR AMP
1
IC912 M51945BL (POWER Board)
1 2
80
OVER
CURRENT
PROTECTOR
INH1
LATCH
FEED BACK
INH2
DRIVE
2 3
OVER
CURRENT
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3
4 5
–
+
3 4 5
DRIVE
REGULATOR
OVER
VOLTAGE START
PROTECTOR
THERMAL
SHUT DOWN
OSC
OVER LOAD
PROTECTOR
IC910 SI-8033S (POWER Board)
REGULATOR
ON/OFF
OSC
SOFT
COMPARATOR
START
ERROR AMP
1
IC901 STR-G7421 (POWER Board)
START LATCH
REG
T.S.D
REGULATOR
CURRENT
MIRROR
4 5
OVER
CURRENT
PROTECTOR
LATCH
RESET
&
DRIVER
+
OVER HEAT
–
PROTECTOR
+
–
VREF
2 3 4
DRIVE
COMP1
o.s.c
COMP2
5
5
OCB/FB
4
VCC
3
GND
S
2
1
D