Real Time Clock Problem - Sony Ericsson T200 Troubleshooting Manual

9 Real time clock problem

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If fault still remains, send the unit to higher level according to local company directives
10 SIM Card recognition Problem
4/00021-2/FEA 209 544/71 B
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Sony Ericsson Mobile Communications AB
Check the RTC Backup Battery(Fig. 9.1) if it's incorrectly soldered,
Mechanically damaged, dirty or oxidized.
Replace the RTC Backup battery if it's necessary.
Use Service function – Real time clock test to make sure that RTC is working
properly.
Fig. 9.1
Trouble Shooting Guide, Electrical
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