LG LM-U360 Service Manual page 17

I TAPE REC PART CHECK
IC604 PS9829 #49,#52 PWM
output check
YES
P7207 #2.#4 output check
YES
P2707 #5.#7 input check
YES
IC203 MC4580 #1,#7 check
YES
IC201 7.24 PIN REC input
check
YES
IC201 10.21 PIN output
check
YES
L203 2.3 PIN oscillation check
YES
P2203 5.3 PIN input check
8 PIN ERASE input check
YES
normal
NO
Refer to PWM modulation
part
NO
Q601 Collector waveform check
NO
Board to Board cantact check
NO
IC203 8 PIN +12V check
YES
relevant parts check
YES
normal
NO
Q205(D1304)
BASE HIGH check
YES
normal
- 2-10 -
NO
Refer to SMPS
Troubleshooting
NO
relevant parts
replacement
NO
IC202 4 PIN HIGH operation
check
YES
relevant parts
replacement