POWER DOES NOT TURN ON
Is the voltage at pin 18,
36, 56, 82 and 112 of
IC1001 about 5V?
No
Is the voltage at cathode
of D512 about 5V?
No
Check Around T501.
TROUBLESHOOTING GUIDE
Yes
Yes
Check IC1001.
Check AT+5.2V line and the
check peripheral circuit.
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