Question about Sony STR-DE845 Receiver

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Turn on and the fusse explotion no have soun

The amplifier have all your function on off, no have sound











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This condition, may be produced by defective components (Q506, Q507). you can remove those transistor, replace the fuses, power-on and wait for relays click. if the fuses not blown again, them replace both transistor

Posted on Mar 19, 2009

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First, a red light still on means the power connections to the amplifier is fucntional least requirng repairs.

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My green light comes on but no soun


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1 Answer

Red light


It sounds like the output transistors have failed. Disconnect everything from the amp except for the B+, ground and remote and turn the amp on. If it goes into protect, the amp is in need of repair. If you want to repair it yourself, email power acoustic for the schematic.

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