Yamaha HS80m AMPLIFIER FROM POWERED MONITOR SPEAKER parts/repair

For Sale:  Am parting out one of these speakers because the amp is not working.

This listing is only for the amplifier chassis. The amp poweres up and the power light on the front of the monitor comes on. When I turn one of the switches on the back I hear a bit of a "thump" from the speaker but other than that I don't get any sound at all. When I plug in a microphone or line input there is no amplification at all. No hum, no static, nothing... I took a look at the circuitry and there are no apparent visible issues. No burnt smell.

Sold as-is for parts or repair.

The photo shows the entire speaker but this listing is just for the amplifier section which I will remove from the cabinet. The woofer, tweeter, and cab will be available in separate listings.

Please email for additional/higher resolution photos.

Email your zip code for shipping cost - should be between $7.99 and $15.99 if you are in the continental USA (listed August 2014).