For a few years now my receiver has been working without problems. Recently I found that when the receiver was turned on it immediately went into Protect Mode, however, and I was able to resolve that issue. In resolving that issue I encountered another, that being the display is not visible when the unit is on. When I turn the unit on, the display is visible for 1 or 2 seconds, then it goes out. Everything else on the receiver appears to be working correctly.
How can I get the display to become visible?
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If you are playing media that has both dolby digital audio and dts audio, your player and your receiver will decode the first audio codec listed first by default unless you select it otherwise yourself. If your remote or receiver has an A.F.D. (auto format decode) button, press it until your display shows that the sound source is dolby digital or DTS, whichever sound mode it was you wanted when you started your DVD.
That is the common symptom of the defected STK-IC in power amp.section
that busted already or just a loose connection.First try to resolder
the pins of STK-IC and also all component parts joint in power amplifier section if its works! if not that is the time you replace
it, so it works normal again.
Check for bad solder connections on the display itself. If none use a voltmeter and check dc voltage on the first and last pins of the display. should be about 20v dc. If you don't have the dc voltage check for a bad transistor or resistor in the power supply. It could also be other thing but this is where you should start.
I would check all speaker connections and speakers, check the speakers with an ohm meter and compare the resistance with all matching speakers and on the nameplate if there is one, my amp did that last year and i found a burnt coil in one speaker ( center channel) hooked my old one back up and solved the problem for me. GOOD LUCK