Sony HCD-C770 Service Manual page 85

QQ
3 7 63 1515 0
– POWER Board –
IC901 STR-F6238 (US, Canadian), STR-F6267S (AEP, Australian)
OVER
CURRENT
PROTECTOR
INH1
FEED BACK
INH2
1 2
IC903 SI-8050S-LF1101
TE
L 13942296513
REGULATOR
OSC
+
–
ERROR AMP
1
IC906 SI-8033JF
REGULATOR
ON/OFF
SOFT OSC
START
www
.
1
http://www.xiaoyu163.com
OVER
VOLTAGE
PROTECTOR
LATCH
THERMAL
SHUT DOWN
OSC
OVER LOAD
PROTECTOR
DRIVE
3
OVER
CURRENT
PROTECTOR
LATCH
RESET
&
DRIVER
OVER HEAT
PROTECTOR
COMPARATOR
+
–
VREF
2 3 4
OVER
CURRENT
PROTECTOR
LATCH
RESET
&
DRIVER
COMPARATOR
+
OVER HEAT
–
PROTECTOR
+
x ao
–
y
VREF
ERROR AMP
i
2 3
4
http://www.xiaoyu163.com
8
DRIVE
REGULATOR
START
REGULATOR
CURRENT
MIRROR
4
IC904 M51945BL
Q Q
3 6 7 1 3
5
IC908 SI-8120JF
REGULATOR
ON/OFF
SOFT
START
u163
.
5
1
HCD-C770/C990
2 9 9 4 2 8
5
1 5 0 5 8 2 9 9 4
–
+
1 2 3 4 5
OVER
CURRENT
PROTECTOR
RESET
OSC
COMPARATOR
+
OVER HEAT
m
–
PROTECTOR
+
co
–
VREF
ERROR AMP
2
9 9
2 8 9 9
LATCH
&
DRIVER
3 4 5
85