Top 20 Jamo MPA201 2-Channel Amplifier Questions & Answers

replace all caps in the power supply section, or send it to me , 727-289-9746

Try to trace the fault systematically from one end of the system to another, starting with something that you know is working

1. Start by checking your sound source (cd player or whatever) is working by connecting it to another amplifier or computer.
2. Check the connecting cable is working from the sound source to the amp and is not shorted out.
3. Make sure your loud speakers actually work (briefly shorting a 1.5 volt AAA battery across the speaker terminals should produce a crackling sound without doing any damage)
4. Check loudspeaker cables are properly connected to output connectors and are making a good contact.
5. Try connecting something like your computer speakers (or use the microphone in jack on the computer itself) to the line output socket of the Jamo. If you can get some sound this way it would suggest that the internal output overload protection fuse may have blown. You will need to open the case to access this. NOTE if your JAMO is still in warranty take to authorised repairer otherwise you may invalidate your warranty.

I can almost guarantee that you'll find bad electrolytic caps on the power supply board to be the cause of the problem. I've seen several of these with the same problem. The protect circuit stays latched due to excessive ripple.

hi it sounds like the transistors are faling thanks stephen

The 201 is 100w in to 4ohms and the 101 is 50w into 4 ohms other then that there the same

You need to determine if the power is getting to the audio amp section. For instance with the volume full up is it humming etc?
As a 'rule' it's unlikely that both left and right channels will fail at the same time (unless you have done something silly with the amp) you are looking for something that is common to both channels. Which is why the power section is first suspect. The exception to the rule (above) is where amps use say an IC power amp for both channels. You will find this IC on the big heat sink. Check whatever is on that anyway for damage or burning.
The only other area could be the pre-amp part. Again this could be a single IC controling both channels, so it's failure could cause a loss of sound. By the way if you can hear music/sound coming through when you put it up to full volume the pre-amp will be generaly good.

Check the small electrolytics on the power supply board for high ESR, Very common problem on these amps. Protect circuit stays latched due to high ripple from PS.

I can almost guarantee that you'll find bad electrolytic caps on the power supply board to be the cause of the problem. I've seen several of these with the same problem. The protect circuit stays latched due to excessive ripple.

Power supply inside has been damaged and is in need of fault dfinding and repair. Take it to a repair shop.

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You will just need to re-pair it. That is assuming the new board fixed the issue. https://www.fixya.com/support/r26362721-pairing_bluetooth_devices and also https://www.google.com/search?q=pair+a+wireless+Jamo+360+sub+to+sound+bar ..

The manual doesn’t show a user replaceable fuse are you plugged into a house outlet or a power strip. If power strip confirm that power is present and try another slot to plug into. https://bcc2479de3c817356f4e-1bbe459354cb22c942d9efbc3d6dacbf.ssl.cf2.rackcdn.com/product-manuals/SUB210_OM.pdf

Did you google it. Google, c80 sub woofer schematic, then look at images.

Sorry we are not in the parts business.

You will have to remove the speaker to access the interior of cabinet. Option 2, if you have base tubes or holes in the bottom of cabinet you can try to shake the loose piece out of cabinet, very hard though

Have you tested the speaker?

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If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

It's problem come on due to a fault on the speakers or wiring or connections especially shorts! Clear that and it should come back on. If not then you have a fault in the main power amp section.

Hello i am from outside the States but i know any KLIPSCH service center is maybe the place for JAMO or they know for sure where you should be in your Country. Jamo About Jamo About