Question about Sony STR-DE345 Receiver

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I have a newer sony receiver that suddenly had the same problem

It's a Sony STR DG-800 and the front display is so dim it's unreadable. Did you find a solution for yours? Is there a lght that needs replacing?

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The display operates on ac and dc voltage. The outer pins on the display should read approx. 3 to 5 volts dc.It might read more. If the circuit traces are good to the transformer the ac will be there. The dc is supplied by a zener diode. The zener diode is shorted or breaking down. This will cause a dim display. Follow the display's outer pins circuit traces to locate the diode and verify the circuit traces are not broken as these lines sometimes are run down the edges of the boards. The edge of a board is a popular place for a board to have a crack and break some traces. Good luck, barneyluc

Posted on Sep 25, 2009

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