Sony FST-GTK11iP Service Manual page 56

FST-GTK11iP/GTK33iP/RDH-GTK11iP/GTK33iP
– GTK33-SMPS Board –
IC931 STR-X6768N
DELAY
DRIVE
REGULATOR
1 2 3
IC965 STR-Y6763
D/ST 1
DRIVER
OVERCURRENT
S/OCP 2 PROTECTION/
BOTTOM-SKIP
UNDER VOLTAGE
LOCK OUT/
VCC 3
REGULATOR/
CONSTANT CURRENT
GND 4
LATCH
FEEDBACK/
STANDBY
OVERLOAD
FB/OLP 5
PROTECTION
BOTTOM
BD 6
DETECTION
NF 7
OSCILLAOTR
56
PROTECTION
LATCH
Q S
R
BURST
REGULATOR,
CONTROL
CONSTANT
CURRENT
START
STOP
BURST
4
STARTUP
LOGIC
OSC
Max ON
SOFT START
OVER
LOAD
PROTECT
OVER
VOLTAGE
PROTECT
5
BOTTOM
SELECTOR
BSD
Q S
R
Q
S R
FEEDBACK OVER
CURRENT
PROTECT
6
COUNTER
BOTTOM
DETECT
7