Sony hcd-hdx501W Service Manual page 80

HCD-HDX500/HDX501W
QQ
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– CHOPPER Board –
IC001 SI8008TM-TL
OVER
CURRENT
REGULATOR
PROTECTOR
RESET
OSC
COMPARATOR
+
–
ON/OFF
SOFT
START +
–
ERROR AMP
1
– POWER Board –
TE
L 13942296513
IC901 STR-F6138-LF1352
CURRENT
MIRROR
OVER
CURRENT
PROTECT
2
LOGIC
OVER
CURRENT FEED INH
PROTECT BACK
2
www
1
.
80
http://www.xiaoyu163.com
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3 4 5
OSC
DELAY
DELAY
BOTTOM
SKIP
LOGIC
OVER
INH CURRENT
2 1 PROTECT
1
SWITCHING
REGULATOR
BLOCK
2 3
x ao
y
i
http://www.xiaoyu163.com
8
Q Q
3 6 7 1 3
LATCH
OVER VOLTAGE THERMAL OVER LOAD
PROTECT SHUT DOWN PROTECT
INTERNAL BIAS
UNDER VOLTAGE
LOCK OUT
4
u163
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
5
co
9 9
2 8 9 9