Receiver Part - Samsung SGH-I740c Service Manual

10-8. Receiver Part

Receiver does not work
Check C622,C623 Is there
(If all power sources work
Check pin 35,36 at U602
Does it Work?
Check pin 2, 4 at U603
Does it Work?
Check the soldering of the
Receiver wire
Is Receiver working?
Yes
Signal?
well)
Yes
Yes
Yes
Yes
Yes
END
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No
Resolder or Replace UCP301
No
Resolder or Replace U602
No
Resolder or replace U603
No
Modify the receiver wire soldering
No
Replace the Receiver
10-24
Flow Chart of Troubleshooting