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