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Flow Chart of Troubleshooting
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9-17
9-7. Receiver Part
Receiver does not work
Yes
No
Check the Speaker wire
Does Speaker work well?
Yes
pin4,pin9 of U506 and
pin4, pin9 of U505 is 'H' ?
Change the U505,U506
No
R516 , R517 is 'H' ?
Yes
Change or resolder R516,R517
No
Yes
Is Receiver OK ?
Change the Speaker
No
Yes
END
Summary of Contents for SGH-F490
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Page 80: ...PCB Diagrams 8 2 2 Main bottom ...
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