System Controls - Sanyo PLV-Z3 Service Manual

Chassis Block Diagrams
● System Controls
1 2 3 4 2 1 1
IC1501
DAC
IC1531
DAC
1 5 4 1 3 19-22 25 13-16 7-10 5-6
IC501,
IC531,
IC561
S&H
IC4811
INVERTER
IC4841
LAMP CPU
IC4826
NAND
IC301
MAIN CPU
-42-
41-44 47-48
IC1822
OUTPUT
EXPANDER
IC1823
OUTPUT
EXPANDER
IC1801
BUS BUFFER
OPTION
RESISTORS
LED-On: H
IC1821
OUTPUT
EXPANDER
2 1 4
IC1824
I/O
EXPANDER