Question about Audio Players & Recorders
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Posted on Jan 02, 2017
SOURCE: pioneer vsx-456
I have um Acquitance Groundbreaking VSX -456 as you I turn on appears Poweroff and he turns off automatically if he may go feasible ma ajudem,pois did not what to do. thank you Awaiting recurrence for its email: firstname.lastname@example.org
Posted on Jun 08, 2008
SOURCE: Pioneer vsx-d902s
Most of these older machine had speaker switches on the front panel. Can you check what they are set to. It may be that both switches(A and B) are set in, or set out. this could present the problem you are having with no sound. turn on just one switch that corresponds the connections you have made on the rear (use speaker A) Another thing to check, is when you first turn on the amp, do you hear a relay click shortly after you switch on. If you don't hear this delayed click, then there may well be a problem in the output stages of the amp. If this is the case, then you will need to take it to a tech to have a look and see what has failed in the amp. Hope this info helps, if you have any questions, I am happy to try and help you further.
Posted on Nov 08, 2008
The Pioneer VSX-D814 has a couple of Power Hybrid bricks that do all the power amplification. These are the infamous PAC011A. You should have 2 of those in your receiver.
If the amp detects some unusual activities, it may shut down the unit to prevent damage. “Amp Err” usually means some DC in the output.
Disconnect all the speakers and turn on the unit; if it acts normal, reconnect speakers one set at a time very carefully. If the unit still shows the error message you can try to reset it. If the reset works, again carefully reconnect the speakers connections. If the reset does not recover the normal operation of the unit, you may have one of the PAC011A damaged, and the unit will need repair.
The reset can be done by disconnecting the unit power cord for a few minutes, then plug it in and press “FRONT ENTER key + ADVANCED SURROUND key” continuously for 2sec.
Posted on Apr 02, 2009
Unfortunatelly your receiver has failed. The front panel is telling you one of the power modules is probably bad. Not an DIY type of repair. These parts are near $40.00, plus cost of replacing.
Look at options to replace your trusted receiver with a new one.
Posted on Aug 02, 2009
Tips for a great answer:
Sep 26, 2013 | Audio Players & Recorders
≥Check the connections.
≥Turn the volume up.
≥Turn muting off.
≥Switch off the unit, determine and correct the cause, then switch the unit on.
-Shorting (bare wires touching) of positive and negative speaker wires.
-Using speakers with an impedance lower than that rated for this unit.
-Straining of the speakers through excessive volume or power.
-Using the unit in a hot environment without proper ventilation.
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