Power Amp Part Check - LG FA163 Service Manual
Mini home theater
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Also See for FA163:
- Quick manual (12 pages) ,
- Quick start manual (12 pages) ,
- Quick start manual (12 pages)
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9. PWM MODULATION PART CHECK
POWER AMP PART CHECK
P7905 PIN3:+12v
PIN13,14,15:20V
Check each IC700
PIN27,26,32,35 INPUT VOLTAGE
Check each
IC700 PIN1,22,23,44:+12V
INPUT
Check PWM Modulator input
each PIN6,8,16,18.
POWER IC700
PIN28,31,36,39 output.
Check output
line coil.
OK
LGE Internal Use Only
YES
YES
YES
YES
YES
YES
YES
NO
Refer to SMPS Troubleshooting.
NO
Check each line resistor output voltage.
NO
3-28
Copyright © 2008 LG Electronics. Inc. All right reserved.
Replace the coil.
Only for training and service purposes
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