Question about Onkyo M-501 Amplifier

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What`s the problem of no power of onkyo amplifier m-501

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  • 25 Answers

EITHER blown caps or burnt internal fuses, look around on the circuit board for capacitors with rounded or humped ends, find and check internal fuses and test them

Posted on May 19, 2014

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SOURCE: whats the problem of my onkyo m-501 it has no power

unplugged with nO power cord connected,,after checking for any internal blown fuses, inspect circuit board for burnt resistors or blown caps, the resistors will appear to be laying on there sides and have multi colored bands around them look for burnt or discolored ones, blown capacitors will look like tiny barrels with lids a flat top indicates a good capacitor as any humped or bulged or rounded top would indicate blown cap , if not more than a couple you may be able to replace these with success, be careful always Unplug from power before servicing electronic componants.

Posted on May 17, 2014

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1 Answer

How can I fix my amplifier?


Swap input cables to the left side to verify both sides are clean. The power module for the right channel is probably toast. Or the protection relay for the right channel is very resistive.
The power module does not exist on the internet.
Go to Ebay, find a 100% seller, buy a M-501 for a good price, use your M-501 for spare parts.

Jun 12, 2014 | Onkyo M-501 Amplifier

2 Answers

Whats the problem of my onkyo m-501 it has no power


unplugged with nO power cord connected,,after checking for any internal blown fuses, inspect circuit board for burnt resistors or blown caps, the resistors will appear to be laying on there sides and have multi colored bands around them look for burnt or discolored ones, blown capacitors will look like tiny barrels with lids a flat top indicates a good capacitor as any humped or bulged or rounded top would indicate blown cap , if not more than a couple you may be able to replace these with success, be careful always Unplug from power before servicing electronic componants.

May 17, 2014 | Onkyo M-501 Amplifier

1 Answer

Cant get channel a & b to stay on together


You need to connect all the remote cables together then turn on the multiple room button on the onkyo p-301 preamp if u have it the it should turn on.

Dec 17, 2012 | Onkyo M-501 Amplifier

1 Answer

Can I conect an Onkyo M-501 power amp to an Onkyo A/V TS xr601 receiver?


HI,
You will not be able to connect the M501 To the TXSR 601 AVR because the AVR does not have any pre out puts except subout.
Ajin

Feb 27, 2012 | Audio Players & Recorders

1 Answer

Onkyo 501 Onkyo Receiver no sound out of right


if you are good at tinkering then you can pulol the top of the receiver and check the fuses on the board to make sure that they did not blow if not then it would be wise to take it to a repair shop to have your receiver checked out and serviced

Dec 12, 2009 | Audio Players & Recorders

1 Answer

Power will not stay on


Activated protection circuitry means that the amplifier is seeing conditions it does not like and is shutting down the power to prevent further damage.
Either you have a short in your speaker wires, in your speakers, or a blown amplifier.
Disconnect both speakers and turn on the amplifier. Does it still give the error message? If it does, your amp is blown. If it does not, carefully inspect your speaker wires and their connection. Make sure all looks good and reconnect the speakers and try it again. Still get the error message? You likely have a problem in your speaker cabinet(s).

Apr 21, 2009 | Onkyo HTR500 Receiver

1 Answer

Onkyo amplifier


Is power coming out of transformer at the right voltage. Also may have a power i.c. shorting to ground.Final anp i.c. may have a place to go to ground through a shorted capacitor.
GOOD LUCK
Big Red

Dec 17, 2007 | Onkyo TX-SR674S 7.1 Channel Up-Converting...

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