Toshiba TS605 Service Manual - Page 82

LOW / NO SERVICE, Cause : PCB dead or, Antenna has broken, PCBA dead

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MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES 7.1.4 LOW / NO SERVICE Cause : PCB dead or Antenna has broken Low Receiving Signal or can not connect Network Service Provider NO Check SIM card setting right? Refer to (Phone can not read SIM card) Yes Yes Check Antenna touching correct ? Yes Check Car kit being OK ? Yes Re-Download NO (1) Modify antenna location. (2) Change (AN1101) antenna of PCBA (3) Change or Clean the antenna of Base rear case NO (1) Clean Car Kit (J1101) of PCBA (2) Change Car Kit (J1101) of PCBA NO Refer to (Updating program is failed) NO RF calibration again Yes NO (1) Check RF cable being right? (2) Check Calibration setting being correct ? Yes (1) Change or Clean RF cable (2) Re-setting Calibration parameter PCBA dead Version 1.0 22/11/2006 Created by Konrad Szombara Page 82 of 103

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MOBILE COMMUNICATIONS DIVISION
CUSTOMER SERVICES
Version 1.0 22/11/2006
Created by Konrad Szombara
Page 82 of 103
7.1.4 LOW / NO SERVICE
Cause : PCB dead or
Antenna has broken
Low Receiving
Signal or can not
connect Network
Service Provider
Check SIM card setting right?
Refer to (Phone can not read SIM card)
Check Antenna touching
correct ?
(1) Modify antenna location.
(2) Change (AN1101) antenna of PCBA
(3) Change or Clean the antenna of
Base rear case
Check Car kit being OK ?
(1) Clean Car Kit (J1101) of PCBA
(2) Change Car Kit (J1101) of PCBA
Re-Download
RF calibration again
Refer to (Updating program is failed)
(1) Check RF cable being right?
(2) Check Calibration setting being
correct ?
(1) Change or Clean RF cable
(2) Re-setting Calibration
parameter
PCBA dead
Yes
Yes
Yes
Yes
Yes
Yes
NO
NO
NO
NO
NO
NO