Question about Rio EX1000 CD Shelf System

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Need RIO EX1000 Power Supply Board.

The power supply board (AH41-00411A) on a RIO EX1000 that I've acquired is dead (lightning). I repaired it the first time, but then another power surge did even more damage (the previous owner had disabled the fast-acting fuse circuit which I did not have a chance to replace). Does anyone know where I can find a replacement power supply board? New or used would be fine. Heck, even a schematic would help! It's a pretty good music player so I hate to just trash it. Thanks in advance. Bob

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Re: Need RIO EX1000 Power Supply Board.

I don't have any solution for your problem BUT you can resolve mine : what color are the rings of the AR51 component (next to the big dissipator)

Posted on May 02, 2008

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I have 2 sounddocksthat both make a pulsing beat when I plug them in to power supply. Otherwise they are non-functional.

Try changing the capacitors on the circuit boards, there's also some capacitors under the metal covers that need to be replaced. i already did a simular repair with another sound dock.

Jun 29, 2015 | Bose SoundDock Digital Music System for...

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My Bose radio stopped working, no sound no lights AWRCC1

Check its power cord first. If it is OK, check its power supply section inside. There will be a fuse at the power supply rectifer board. Check it. If it is found opened [damaged] never put an other fuse, without proper check to the power supply and main audio amplifier section. There must be some reason for the blow up of this fuse. Without rectifying the fault, replacing an other fuse, may make more components to get damaged, and the repair work may cost more. OK.

Feb 26, 2012 | Bose Wave radio/CD remote control -...

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The jvc UX-GP5 has no charge power to the ipod

Put a golf ball behind your Ipod, this will push the connections down. I had the same problem after 4 years of use and the golf ball has been working great for the past 5 years.

Dec 24, 2011 | JVC UX-GP5 Micro Stereo Audio System Shelf...

1 Answer

The word protect is on my stereo and i cant seem to use cd,tape player,or radio. and the power will not go off

Hi Anita,

Protect is an error code for short and or overload. This will appear once the processor sense a malfunction either on the power supply or on the load (high chance is the output IC). DIY steps are as follow to determine where the fault is : 1. Allow the unit to cool down for an hour. Give proper ventilation and keep away all obstruction from the vent to have a sufficient air flow. 2. Disconnect one at a time the speakers, inputs, from the unit while powering it on.

If the unit back to normal again then you've confirmed that any of the above caused the error code. If #1 is the caused, you have to check also the exhaust fan(if installed), clean it as much as possible, replaced if faulty. If #2 is the caused (speaker) check the wire and speakers for short, (input) check the RCA cord for short or replaced if necessary.

If the above simple fix didn't cure the error code, you should need help from friends that can perform this steps. Now after removing the cover, you have to concentrate first on the power supply board. Look for bulged electrolytic capacitor. Leaky capacitor will affect the regulation of the supply and will trigger the error code. Look for dry joints. Check it also in the pre-amplifier stage, main output board where a big heat sink is located. Next disable the output amplifier stage by disconnecting the supply. If the unit come out, make some re-soldering on the board, spot the cold solder and dry joints and then try to connect again. If the error code appear again, high chance that your output IC is faulty but still to be confirmed. Using the disoldering pump and soldering iron pull-out the output IC from the board then try the unit. If the error code disappear, confirmed that your IC is faulty.After trying the abovesteps-by-steps guide and still the symptoms persist this is the time for you to send it to repair shop. Remember that your unit has a lot of parts and only some basic steps have done, leave the expert to troubleshoot the entire unit.

Give a thumbs up if you find it useful.

Have a nice day!

Thanks for using Fixya.

Feb 11, 2011 | Sharp CD-BA200 CD Shelf System

1 Answer

My system is on standby mode how i can fix this problem


Your unit being stuck in stand by mode is an indication that its having a power problem. Remove its plug from the wall and fix it back into the wall, then turn it on again. If its still stuck in standby mode, then the power supply board in the unit is the cause of the problem.

The power supply board might be defective and maybe that's why the unit won't power up. Its receiving power but it cannot transfer the current to the necessary part of the unit because a capacitor, diode, etc may have been faulty. Until these bad components are replaced, the unit might not come on.

If you know about electronics repairers, I would suggest that you disassemble the unit and read the power board/panel with a meter, detect the bad component and replace it.

If you don't know about electronic repairs, take the unit to the nearest repairman to fix the fault for you.

I wish you good luck.

Dec 24, 2010 | Audio Shelf Systems

1 Answer

I have an onkyo R-805x that stopped working and makes a continuous clicking sound and no longer power up. Multiple people have posted this problem here but not info has been given. Is it the power supply...

Being a hospital electronics repairman (read I repair CT and MRI scanners), I recently had the pleasure of having our R-805x die on us with this exact same problem. I went through a lot of hoops to find the schematics on the system and what it came down to is the logic circuit on the main PC board, not the power board, has a logic control in there that is no longer able to determine the incoming voltage which prevents the system from locking in the relay on the power board. This is the reason for the clicking; the relay on the power module is energizing and de-energizing constantly.

I did not go any further than determining which board was causing the issue because ultimately it's going to cost about the same to repair (with shipping, headaches, man hours, etc) as a replacement system will be. I am currently researching replacment receivers for our MRI suite at this time.

Aug 20, 2010 | Onkyo Audio Shelf Systems

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Nakamichi Power supply

Since you didn't post your message as a comment on another entry, the person you asked never saw the message.
If your system is dead, it is surely the power supply. Your system probably uses a 'switched mode' type of supply; these are fussy about certain components being of the highest quality and there are a flood of supply failures on this message board from all kinds of consumer electronics and the schematics needed to repair them are generally not available since many manufacturers outsource their power supplies and the companies that make them are often only a step above a garage operation.
If you haven't done it yet, you may have some luck buying a replacement supply from Nakamichi. If the supply manufacturer hasn't cleaned up their product, the new one may not last any longer.    

Dec 10, 2008 | Nakamichi SoundSpace 5 Shelf System

3 Answers

Power supply for soundspace 5

dont laugh but theres a cable for a cambrook toaster that shares the same specification and voltage. mine blew in a lightning storm. its only available from cambrook service dept and it took some pursuasion for them to sell me one. send an email to

Jul 11, 2008 | Nakamichi SoundSpace 5 Shelf System

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Panasonic sa-ak25

the problem is F61 is speaker protection mode on.
fault with your audio power amp section.
i can help you.

Oct 09, 2007 | Sony MHC-G100 Shelf System

3 Answers

Repairing of power supply

Sorry insufficient detail...
Have you the power supply in bits?
Have you checked the fuses?
How do you know its the power supply?
Its very difficult to help with very limited information...
Is there power available on the wall socket?


Feb 19, 2007 | Sony MHC-GX450 CD Shelf System

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