No Audio Check - LG CJ98 Service Manual
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Also See for CJ98:
- Simple manual (4 pages) ,
- Owner's manual (47 pages) ,
- Service bulletin (26 pages)
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ELECTRICAL TROUBLESHOOTING GUIDE
NO AUDIO CHECK
USB play
When insert USB,
IC501 pin U7, U8, A7, A8
USB_D signal OK?
YES
A
AUX
IC200
pin 3, 4 AUX input signal
OK?
YES
IC200
pin15, 16, 17 I2S input signal
OK?
YES
IC200
pin18 ADC_data output signal
OK?
YES
A
IC303
NO
USB power USB_5 V
OK?
NO
Check audio cable.
NO
NO
3-30
NO
YES
Check IC501.
Replace IC200.
Replace IC303.
- Quick Links:
- Speaker Section
- Wiring Diagram
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