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Flow Chart of Troubleshooting
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10-
6
10-1-2. Initial
Is the voltage at the C312=1.8V?
Is the voltage at the C318=1.5V?
Initial Failure
Is there 32.768KHz wave
form at the C211, C212 ?
Is the voltage at the C602 = 1.4V
or 1.1V ?
Check the UCD300
and OSC200
Check the U615
Check the U611
Check the U623
YES
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
YES
Check the UCD300
Check the U306 and U307
Is the voltage at the C330=1.6V?
Is the voltage at the C331=1.8V?
Is the Voltage at the TP RST
"Low
→
High" ?
YES
NO
Check the UCD300
Is the voltage at the TA602 = 2.8V ?
The voltage at the C603 = 2.7V