Power Amp Part Check - LG FB162-A0U Service Manual

7. POWER AMP PART CHECK

P7905 3PIN +
13, 14, 15 PIN 29V
YES
Check input power IC700
34, 29, 26, 21 PIN.
YES
Check input power of IC700,
1, 36, 17, 18, 19 PIN +12V
YES
Check PWM MODULATOR
input 4, 6, 14, 16 PIN
YES
Check POWER IC 700 34,
29, 27, 20 PIN output.
YES
Check output LINE COIL
YES
OK
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Only for training and service purposes
NO
Refer to SMPS
Troubleshooting
NO
Check resistance power
IC700:R702,701,726,727,724
NO
Replace the related parts
4-7 LGE Internal Use Only