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GX30
2 – 67
CONFIDENTIAL
19. Bluetooth communication is impossible.
A connection cannot be established via Bluetooth.
Is 3 V supplied from IC505 pin 5?
IC505 is defective.
Is R514 (RESET signal side) always at “H”?
IC106 is defective.
Is waveform periodically sent from R516 (UARTTX signal
side)?
IC506 is defective.
Is waveform periodically sent from R547 (UARTRX signal
side)?
IC106 is defective.
IC506 is defective.
Handset can be connected to Bluetooth headset, but sound is
not heard.
Is waveform of PCMCLK signal (approx. 256 kHz clock) sent
from R188?
IC106 is defective.
Is waveform of 8 kHz periodically sent from R550 (PCMSYNC
signal side)?
IC106 is defective.
Is waveform of PCMIN signal periodically sent from TP508?
IC506 is defective.
Is waveform periodically sent from R515 (PCMOUT signal
side)?
IC106 is defective.
IC506 is defective.
YES
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YES
Содержание GX30
Страница 6: ...GX30 1 4 CONFIDENTIAL 12 New Messages Download Games News Sport ...
Страница 7: ...GX30 1 5 CONFIDENTIAL 1 3 6 3 3 7 5 ...
Страница 8: ...GX30 1 6 CONFIDENTIAL MEMO ...
Страница 91: ...GX30 5 4 CONFIDENTIAL VSYNC Stand by C760 SUBFLM Stand by L711 1Pin 16 17 TCXOEN Stand by IC804 1Pin 18 ...
Страница 120: ...GX30 5 33 CONFIDENTIAL MEMO ...
Страница 150: ...GX30 6 30 CONFIDENTIAL MEMO ...
Страница 165: ...GX30 15 INDEX MEMO ...