Denon DHT-S514 - Check 1.8 V; Check D3.3 V; Check BT3.3 V

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7. Check 1.8V
Check the input voltage 3 pin of U28.
Is the voltage in the specication? (5V±5%)
Is the 1.8V output from 2 or 4 pin of U28?
Start (MAIN PWB)
Finish
Check the soldering of L47, Q11, R262, Q12 and R263.
Check the soldering of the U28.
NO
NO
YES
YES
8. Check D3.3V
Check the input voltage 3 pin of U30.
Is the voltage in the specication? (5V±5%)
Is the 3.3V output form 2 or 4 pin of U30?
Start (MAIN PWB)
Finish
Check the soldering of L47, Q11, R262, Q12 and R263.
Check the soldering of U30.
NO
NO
YES
YES
9. Check BT3.3V
Check the input voltage 3 pin of U34.
Is the voltage in the specication? (5V±5%)
Is the 3.3V output from 2 or 4 pin of U34?
Start (MAIN PWB)
Finish
Check the soldering of L47, Q11, R262, Q12 and R263.
Check the soldering of U34.
NO
NO
YES
YES
Is the 3.3V output form +side of C334?
Check the soldering of L50 and R239.
NO
YES