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Level 3 Repair
8-3-1. Power On
Check Battery vol. more than
No
3.4V?
Change the Battery
(TP: C101, C102, C104,
(Because of batt. power low)
ZD101)
Yes
Check the Main Chip
Check the Clock at
No
(TP : OSC101 / look over the waverform
OSC101
1,3pin(CLK26M)=26MHZ
using the oscilloscope)
(TP:OSC101)
Yes
No
VDDCORE_1V1
Resolder L100, C100, C103, C111
= 1.1V?
(to confirm coming out power V_core)
(TP: L100,C100,C103,C111)
Yes
Check the initial operation
"Power On"
Yes
END
8-5
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