Tape Rec Part Check - LG MDD262 Service Manual

14. TAPE REC PART CHECK

TAPE REC part check
YES
Check
IC604(PS9829)_PIN49, 52
PWM output.
YES
Check IC201_
PIN7, 24 record input.
YES
Check IC201_
PIN10, 21 output.
YES
Check L203_PIN2, 3
oscillation.
YES
Check P2203_PIN5, 3 input
and PIN8 erase input.
YES
OK
NO
Refer to PWM
modulation troubleshooting.
NO
Check IC100_PIN23
"HIGH"
OK
NO
Check Q205(D1304)_
base "HIGH".
OK
3-12
NO
YES
NO
YES
Replace IC201.
Check IC100_PIN23 "HIGH"
YES
Replace IC202.