Sony FST-GTK11iP - Page 56

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