LG MCD112 - Tape Rec Part Check

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