Technics SUV500 2-Channel Amplifier - Answered Questions & Fixed issues

Power down,disconnect the speakers and power back up. If it still say's overload, it needs to go to service. If not, check your wires, connections, and speakers one by one to hunt down the problem and correct. Hope this helps

use tape1 record out to the Line in jack on your computer. you should then be able to record to .wav, .mp3s etc. with an audio program like Nero.

Sll I can think of is that a belt or something else out of alighnment

You most likely need an alternator, usually in day it will run due to not using lights,etc,

The original remote control is no longer available from Panasonic. This site says they have the replacement remote you need. You can search for others by the remote part number or receiver model number to find other sources.

HAVE YOU TRIED DISCONNECTING FROM MAINS FOR AWHILE

That should be answerable but first read the instructions they contain some amazing information. I can not help you because I have no idea of what you want to know.

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its because your sound system is too high for your speakers i thnik

Hi max

I have done a followup with Technics Parts agents in the US, they will get back to me and then me to you shortly :) A vote as FixYa would help improve my ratings. Thanks

Graeme

https://www.samswebsite.com/en/photofact/search?s=Search&t=model&o=0&k=&submit=Search

I had the same problem. The solution to me was presoldering transistor Q708. http://www.flickr.com/photos/37147023@N03/3511227679/?edited=1

Check for dry solder joints especially on the main power output transistor.A blown power transistor will stop the 'Current Drive' from engaging so if the problem you have is intermittent then it is most likely dry solder joints.Hope this helps.

check volume balance between right and left-then change inter connection between sound source and amplifier with new cabel(i prefer gold plated type connectors)(see radio shack).
after that if the problem excit your fault in output transistors or output stereo ic depend on circuit design.

The fact you have output from the headphones is a good sign. It shows the main amp is working fine. However water has clearly got inside something and affected it. The best course of action is to trace back the wires from the headphone socket and see if there is a relay or anything that could get water in it. If you do find something, try applying warm air from a hairdryer. The alternative is to apply a soldering iron to the solder conections of the device. This should get rid of any water inside. If all else fails you might have to replace the relay. But I would try a spray of Servisol first. Just in case some dust has got inside or mineral salt from the water.

It's most likely the main power amp IC which is screwed to the heatsink.The current drive LED always goes out when this fails.

Possible failure of the FILTER capacitor to the power supply, fault in the power supply , DRY solder joints in the power supply or a regulator failure.You need to check this out with a Voltage check on the board, attempt only if you are versed with this section.

If this unit was brand new the remote should have been included, but if this is second hand the only place to try is www.technics.com contact customer support and the technical department.

Fault is not clear , if you meant there is no volume then the amplification of the different stages must be checked using a audio signal generator to confirm the stages and drop of volume.can be related to the AF pre-amp stage.Check for dry solder joints.