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8-3. Troubleshooting
8-3-1. LOGIC part
8-3-1-1. POWER ON
"Power On" does not work
Check the current
consumption ≥
100mA?
Yes
Check the battery
voltage ≥ 3.45V
Yes
Check the Dome
Sheet (Crack,
open, etc)?
Yes
Check the clock
at OSC200
=32KHz?
Yes
Voltage of C200 ≥
2.7V?
Voltage of L202 ≥
1.1V?
Yes
Check
C241,TP_SYSRS
T ≥ 1.8V?
Yes
Check the initial operation
No
No
No
No
No
(C200, L202) & change UCP200
No
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Download S/W binary
Change the battery
Change Dome Sheet
Resolder OSC200
Check the related circuit
Change PBA
8-5
Level 3 Repair
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