User Guide

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SGH-E100 Flow Chart of Troubleshooting
7-14
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8. Receiver Part
U515 pin 9,10 = 1.5V?
Resolder or replace U515
END
No
Yes
Yes
Receiver does not work
CN100 pin 20,21 = 1.5V?
Replace CN100
No
Yes
Is Receiver working?
Replace the Receiver
No
Yes
No
Resolder or replace U507
Yes
No
Resolder EAR500
EAR500 pin 2,3 = short?
Yes
EAR500 pin 2,3,6 = 1.5V?
No
Resolder EAR500
Yes
Check the soldering of the
speaker wire
No
Modify the speaker wire soldering
Yes
U507 pin 9,10 = 1.5V?