The electricity went out in our block last night and when the lights came back on we still had issues with our tv. The receiver says E2 Prom Error when I turn it on and my Pioneer tv shows a blue screen and that's it. How can I troubleshoot the problem?
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The bad resistor is on the ps board that drives the display, well on mine at least. The resistor is supposed to be 10 ohms at 1/8 watt "i think" i replaced it with a 1/2 watt resistor. Either way its R9310. the board is right behind the display on the right side just behind the volume knob. when open and looking from the back you see it just fine. it's not hard to get out. fairly simple to fix.
you most likely have a blown main output transistor or a shorted speaker. first get a mutimeter and set to lowest ohms setting and check for 4-8 ohms ( CHECK IMPEDENCE rating on back of speaker) at the speaker terminal of the speaker. if this checks out then you take the meter and set to DC and place the + / - terminals to the speaker connection on back of receiver then turn on the receiver . notice if you have any dc voltage at any sp terminal, if dc is present you have a blown output transistor. If you are not an electronic tech please refer your unit to a qualified service tech. I hope this helps.
http://www.retrevo.com/support/Integra-DTR-7.2-Receivers-manual/id/550ag003/t/2/ filedepot.onkyousa.com/Files/own_manuals/ADM-2.1.pdf Below,is the support website for your convince.www.integrahometheater.com/model.cfm?m=DTR-7.1...
I have seen this type of things a few times before in my shop, What has unfortunately happened is that when the power went Off/came back On, it has "Spiked" the Computer Controlling circuitry internally.
Sometimes, if possible, one may be able to "Reset' the unit. But, usually, serious damage has been done. I have given you a link to a manual so you can check.