Sharp GX30 Service Manual - Page 75
Bluetooth communication is impossible., Is waveform of PCMCLK signal approx. 256 kHz clock sent
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CONFIDENTIAL 19. Bluetooth communication is impossible. A connection cannot be established via Bluetooth. YES Is 3 V supplied from IC505 pin 5? YES Is R514 (RESET signal side) always at "H"? YES Is waveform periodically sent from R516 (UARTTX signal side)? YES Is waveform periodically sent from R547 (UARTRX signal side)? YES IC506 is defective. NO IC505 is defective. NO IC106 is defective. NO IC506 is defective. NO IC106 is defective. Handset can be connected to Bluetooth headset, but sound is not heard. YES Is waveform of PCMCLK signal (approx. 256 kHz clock) sent from R188? YES Is waveform of 8 kHz periodically sent from R550 (PCMSYNC signal side)? YES Is waveform of PCMIN signal periodically sent from TP508? YES Is waveform periodically sent from R515 (PCMOUT signal side)? YES IC506 is defective. NO IC106 is defective. NO IC106 is defective. NO IC506 is defective. NO IC106 is defective. GX30 2 - 67
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