22
10. Check D.RF3.3V
Check the input voltage 3 pin of U31.
Is the voltage in the specication? (5V±5%)
Is the 3.3V output form 2 or 4 pin of U31?
Start (MAIN PWB)
Finish
Check the soldering of L47, Q11, R262, Q12 and R263.
Check the soldering of U31.
NO
NO
YES
YES
11. Check 3.3V
Check the input voltage 3 pin of U32.
Is the voltage in the specication? (5V±5%)
Is the 3.3V output form 2 or 4 pin of U32?
Start (MAIN PWB)
Finish
Check the soldering of L47.
Check the soldering of U32.
NO
NO
YES
YES
11. Check H1.8V
Check the input voltage 3 pin of U33.
Is the voltage in the specication? (5V±5%)
Is the 1.8V output form 2 or 4 pin of U33?
Start (MAIN PWB)
Finish
Check the soldering of U32.
Check the soldering of U33.
NO
NO
YES
YES