Troubleshooting and Repair 6-15
ADC Test Check
1. Push PWRON button
and let it output 5V
2. Please make sure input
AC source > 18V before test ADC.
START
1. Check CN101 > 18V?
2. Check CN102
Pin 9~Pin 14 = 3V?
3. Check CN103
Pin 7~Pin 10 = 5V?
4. Check CN103
Pin 1 = 12V?
ADC failed, please check:
1. Output terminator if short circuit?
2. F101 Pass?
3. C121 = 5V?
4. PWRON signal pass?
5. C119 > 18V?
ADC Passed!
END