Sony SA-WCT770 - Page 27

SA-WCT770
27
– POWER Board –
IC910 STR-A6159M
IC920 STR-W6735N (US, Canadian and Taiwan models)
IC920 STR-W6765N (Except US, Canadian and Taiwan models)
1SOURCE/OCP
8D
7D
5 STARTUP
6NC
2VCC
4FB/OLP
3GND
THERMAL
SHUTDOWN
DELAY
BUFFER
BLANKING
DISCHARGE
LATCH
INTERNAL
BIAS
UNDERVOLTAGE
LOCKOUT
OVER LOAD
PROTECTION
OVER VOLTAGE
PROTECTION
OVER
CURRENT
PROTECTION
OFF TIMER
DRIVE
+
–
SR
PWM
LATCH
FEED
BACK
BIAS
BURST
Q
D 1
NC
2
S/GND 3
VCC
4
SS/OLP
5
FB
6
OCP/BD
7
DELAY
Q
R
S
+
–
+
–
+
–
Q
S
R
+
–
BOTTOM
SELECTOR
COUNTER
OSC
R
Q
S
SOFT START
+
–
OVP
REGULATOR
& ICONST
+
–
BURST
CONTROL
START/STOP
BURST
PROTECTION
LATCH
DRIVE
REGULATOR
OLP
BSD
BD
OCP
FB
Ver. 1.1