LG LX-D2560A Service Manual page 23

I TAPE REC PART CHECK
Check IC604 PS9829
#49,#52 PWM output.
YES
Check P7207 #2,#4 output.
YES
Check P2707 #5,#7 input.
YES
Check IC203 MC4580 #1,#7.
YES
Check IC201 10,21 PIN
output.
YES
Check L203 2,3 PIN oscillation.
YES
Check .P2203 5,3 PIN input.
Check .8 PIN ERASE input.
YES
OK
NO
Refer to PWM modulation
part.
NO
Check Q601 Collector waveform.
NO
Check Board to Board contact.
NO
Check IC203 8 PIN +12V.
YES
Check the related part.
YES
OK
NO
Check Q205(D1304)
BASE HIGH.
YES
OK
- 3-10 -
NO
Refer to SMPS
Troubleshooting
NO
Replace the related parts
NO
Check IC202 4 PIN HIGH
working.
YES
Replace the related parts