Toshiba TS605 Technical & Service Manual page 82

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
Yes
RF calibration again
Yes
Version 1.0 22/11/2006
Created by Konrad Szombara
Check SIM card setting right?
Yes
Check Antenna touching
correct ?
Yes
Check Car kit being OK ?
Yes
Re-Download
NO
(1) Check RF cable being right?
(2) Check Calibration setting being
PCBA dead
NO
Refer to (Phone can not read SIM card)
(1) Modify antenna location.
NO
(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
correct ?
Yes
(1) Change or Clean RF cable
(2) Re-setting Calibration
parameter
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