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Suddenly dying Technics Amplifier SU-X520D

This amplifier is almost 14 years old and is part of a set with equalizer, tuner, cassete player and a CD player with an optical connection. So, I am quite happy listening to it through my Bose acoustimass-5 speakers.

The only problem is that occassionally, the amplifier just stops and one can see a faint glow where the volume digits are normally visible. Over time, I have found that tapping it (quite hard with my palm) on the right side of the amplifier (while facing it), just little more than halfway towards the rear gets it going again. This has been going on for more than 6-8 years and I did not mind as it was my back-up system. Now, it has become my primary system again and I would like to listen to music uninterrupted.

Can anyone help?

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Hi

You will find that the output stages or power regulator stages have dry solder joints and may require some resoldering wherever you see them. study the whole board carefully, there may be more than one joint causing issues. If you are not well practised at soldering I strongly suggest that you get someone that can to do the soldering for you. Good Luck

regards
Graeme

Posted on Feb 27, 2008

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