902SH
2 – 40
CONFIDENTIAL
19. USIM card is not recognised.
20. Bluetooth communication is impossible.
Is the USIM card inserted and securely locked?
The USIM card is not properly inserted.
Is the USIM card recognised when inserted to a
properly working handset (phone)?
USIM card is defective.
Is “Insert SIM Card” displayed when the power
is turned on without the USIM card?
The software has a problem.
Is the voltage 3.0 V on TP1218 and TP1219?
IC1200 is defective.
Does R1232 oscillate?
IC1000, IC1200, and R1232 are defective or
mounted improperly.
IC1000, IC1200, R1230, R1231 and R1232 are
defective or mounted improperly.
A connection cannot be established via Blue-
tooth.
Is the voltage approx. 2.9 V applied to TP1021?
IC1002 is defective.
TP1022 (RESET signal)always at “High”?
IC1000 is defective.
Are pulse signals sent to TP1016
(BT_UARTTX signal)?
IC1000 is defective.
IC1001 is defective.
Phone can be connected to Bluetooth head-
set,but sound is not heard.
Is the signal waveform sent to TP1004 (PCM-
DATB)?
IC1000 is defective.
Is the signal waveform sent to TP1005 (PCM-
DATA)?
IC1001 is defective.
IC1000 is defective. Or IC1001 is defective.
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Summary of Contents for 902SH
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Page 120: ...902SH 9 CONFIDENTIAL INDEX MEMO ...