Yamaha R-V702 R-V502 User Manual download pdf (Page 35)

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SGH-E630 Flow Chart of Troubleshooting

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7-13

8. Receiver Part

U702 pin 1, 5 = 1.5V?

Resolder R727, R730, U702

END

Yes

Receiver does not work

CN606 pin 23,25 = 1.5V?

Replace the CN606

Yes

Is Receiver working?

Replace the Receiver

Yes

Resolder U702

Yes

Resolder or replace U702

U702 pin 4, 16 = 1.5V?

Yes

CN604 pin 8, 9 = short?

Resolder CN604

Yes

Check the soldering of the

speaker FPC

Modufy the speaker FPC soldering

Yes

U702 pin 2, 10 = "H"?

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Yamaha R-V702 R-V502 User Manual Page 35