Sony HBD-E570 Service Manual page 75

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– POWER Board –
IC901 STR-F6138-LF1352 (E370: AEP, UK/E870: AEP, UK models)
IC901 STR-F6168-LF1352 (Except E370: AEP, UK/E870: AEP, UK models)
CURRENT
MIRROR
OVER
FEED
CURRENT
BACK
PROTECT
2
1
TE
L 13942296513
IC921 STR-Y6763
D/ST 1
OVERCURRENT
S/OCP 2 PROTECTION/
BOTTOM-SKIP
UNDER VOLTAGE
VCC 3
REGULATOR/
CONSTANT CURRENT
GND 4
FEEDBACK/
OVERLOAD
FB/OLP 5
PROTECTION
BD 6
DETECTION
NF 7
OSCILLAOTR
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.
http://www.xiaoyu163.com
OSC
OVER
BOTTOM
CURRENT
PROTECT
SKIP
2
LOGIC
LOGIC
OVER
INH INH
CURRENT
2 1
PROTECT
1
2
STARTUP
DRIVER
LOCK OUT/
LOGIC
LATCH
STANDBY
BOTTOM
x ao
y
i
http://www.xiaoyu163.com
8
DELAY LATCH
DELAY
OVER VOLTAGE THERMAL
PROTECT SHUT DOWN
SWITCHING
REGULATOR
BLOCK
3 4
Q Q
3 6 7 1 3
IC941 SI-3010KM-TLS
VC 1
VIN 2
GND 3
VOUT 4
ADJ 5
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.
HBD-E370/E470/E570/E870/T57
2 9 9 4 2 8
OVER LOAD
PROTECT
INTERNAL BIAS
UNDER VOLTAGE
LOCK OUT
5
1 5 0 5 8 2 9 9 4
TSD
–
+
REF
m
co
9 9
2 8 9 9
75