Tape Function Check - LG XC62-A0U Service Manual

10. TAPE FUNCTION CHECK

TAPE function check
TAPE PCB ASS`Y
Check
IC200(BU4052)_PIN2, 15 input
waveform.
Check IC200(BU4052)_PIN3, 13
output waveform and IC601(BU4052)_
PIN2, 15 input waveform.
Check IC801(MC4580)_
PIN2, 6 input waveform.
OK
YES
YES
YES
YES
YES
NO
Check IC200(BU4052)_
PIN16 VDD, PIN8 VSS power
Replace IC200. Replace IC200.
NO
Check IC200(BU4052)_
PIN16 VDD, PIN8 VSS power
Replace IC200.
3-12
YES
YES