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Flow Chart of Troubleshooting
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7-15
7-7. Receiver Part
U602 pin 1,5 = 1.5V?
Resolder UCP200 or change PBA
END
No
Yes
Yes
Receiver does not work
LCD MODULE
SPK +,- PAD
= 1.5V?
Change the Board to Board Connector
No
Yes
Is Receiver working?
Replace the Speaker
No
Yes
No
Resolder or replace U602
Yes
No
change UCP200
HDC700 pin 49, 51= 1.5V?
Yes
Check the soldering of the
spaeaker wire
No
Modify the speaker wire soldering
Yes
U602 pin 4,16 = 1.5V?