Technics piano 902 is not making any sound

Topic

Hi,

I inherited a 902 piano. Worked for a little bit but would make a bang noise and the no sound for a bit. Then sound would return. Same thing would happen through the headphones. I noticed if i tapped the heat sink on the amplifier board the noise would occur sometimes. I have removed this board and dont see anything obvious. Any thoughts or suggestions?

thanks,

dan

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Replies

The power amp is dying or dead and they are not easy to get replacement parts for.  The excessive heat they generate also cooks other parts of the board.  I removed the amp transistors and used a smaller seperate ampliofier that I out inside the case.  Mike Barden will probably be able to fix it for you if you are happy to pay out.  I had another problem previously that he fixed for about £80.  I considered it worth it as the piano is extremely good.

1 user thanked author for this post.

yesram62

Hi,

thanks for the reply. Any idea what mike barden charges to fix the amp board?

dan

Hi,

I was thinking of adding a separate amp. How hard was it to find a amp that would work and how hard was it to remove the parts needed to make it work?

dan