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10-7. Receiver Part
Receiver does not work
Does Speaker work well?
pin4,pin8 of U504 is 'H' ?
Is Receiver OK ?
Yes
Yes
Yes
R526 is 'H' ?
Yes
Yes
END
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No
Check the Speaker wire
No
Change the U504
No
Change or resolder R526
No
Change the Speaker
10-15
Flow Chart of Troubleshooting
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