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Flow Chart of Troubleshooting and Circuit Diagrams
10-1-2. System Initial
Initial Failure
Check the VCCD_2.8V of
CPU301 is "High" When the phon
e is boot on
check the VCCD_2.8 of U701
is "High"
Voltage at the R702 is
"Low-> High"?
There is 32.768KHz wave
form at the C223, C224 ?
LCD display is O.K?
Sound is O.K?
END
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
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Check CPU301
Check U701
Check CPU301 and R702
Check OSC201
Check HDC601 and LCD part
Check Audio part
10-7
- Quick Links:
- Exploded View and Parts List
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