Sharp 802SH Service Manual page 48

3g(umts)/gsm/gprs phone
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802SH
18. USIM card is not recognised.
Is the USIM card inserted and securely locked?
YES
Is the USIM card recognised when inserted to a
properly working handset (phone)?
YES
Is "Insert SIM Card" displayed when the power
is turned on without the USIM card?
YES
Is the voltage 3.0 V on TP1218 and TP1219?
YES
Does R1232 oscillate?
YES
IC1000, IC1200, R1230, R1231 and R1232 are
defective or mounted improperly.
19. Bluetooth communication is impossible.
A connection cannot be established via Blue-
tooth.
Is the voltage approx. 2.9 V applied to TP1021?
YES
TP1022 (RESET signal)always at "High"?
YES
Are pulse signals sent to TP1016
(BT_UARTTX signal)?
YES
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)?
YES
Is the signal waveform sent to TP1005 (PCM-
DATA)?
YES
IC1000 is defective. Or IC1001 is defective.
CONFIDENTIAL
The USIM card is not properly inserted.
NO
USIM card is defective.
NO
The software has a problem.
NO
IC1200 is defective.
NO
IC1000, IC1200, and R1232 are defective or
NO
mounted improperly.
IC1002 is defective.
NO
IC1000 is defective.
NO
IC1000 is defective.
NO
IC1000 is defective.
NO
IC1001 is defective.
NO
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