CLARION 28185 9U20A
Manual de Servicio

The cellular phone and Bluetooth cannot be connected.

Check enter in a set screen of the telephone

NG
Check the power of IC901 (Bluetooth module)

NG

Confirm to IC901 (Bluetooth module) IC502 (the power of 3.3V)

OK Confirm to IC901 (Bluetooth module) the circuit of Q101,102,104,105,106,107,108

OK
Check how to connect by inquiry from the cellular phone

NG

OK
Check the link of Bluettoth steady or the BT mark on

Confirm to IC901 (Bluetooth module) the circuit of Q101,102,104,105,106,107,108 ANT902 (Bluetooth module) Confirm to IC901 (Bluetooth module) the circuit of ANT902 (Bluetooth module)

NG

OK Confirm to connect Bluetooth with the cellular phone again

The receiving talk voice doesn't go out of the speaker.
Check connect it with the cellular phone

NG

Confirm to IC901 (Bluetooth module)

OK Check the sound of CD or radio OK
Check the call sound come to send it by telephone

Confirm to NG IC402 (DSP), IC501 (AMP), IC503 (Power AMP), J502 (Connector)

OK
Check the power of IC901 (Bluetooth module)

OK

NG

Confirm to the circuit of IC502 (the power of 3.3V) Confirm to the circuit of IC502 (the power of 3.3V) Confirm to the circuit of IC101 (CODEC) IC901 (Bluetooth module)

OK Check the power of IC101 (CODEC) OK Check the waveform of 9pin of IC101 OK
Check the waveform of 43pin of IC402(DSP)

NG

NG

NG

Confirm to the circuit of IC402 (DSP)

OK Confirm to the output of J502

-7-

PN-3000P PP-3000M