Main Board - Sony SA-WP890 Service Manual

SA-WP890
• IC Block Diagrams
– MAIN Board –
IC202, IC203 NJM4565D
A OUTPUT 1
A
A -INPUT 2
A +INPUT 3
V- 4
IC500 uPC1237C-A
AC-OFF
DETECTOR
4
8 V+
7 B OUTPUT
B
6 B -INPUT
5 B +INPUT
SWITCH FOR
OVERLOAD
LATCH/AUTOMATIC
DETECTOR
RESET
OUTPUT
OFFSET
DETECTOR
FLIP-FLOP
OUTPUT OUTPUT
OFFSET OFFSET
DETECTOR DETECTOR