Tweet
This amp came in with a cutting out problem. Amp plays fine then the sound cuts out and fault light comes on. I soon find that This happens also when hitting the top of the unit. I open up and start tapping around the board with a chop stick. When tapping on one of the two heat sinks in the middle of the unit(there are 3 heat sinks) the unit goes into fault mode. The weird thing is that it doesn't take much force to get it to cut out. In fact a very light tap on the sinks does the trick. Tapping the board does the same but with more force.
So I think it's a solder joint. Flip the board and solder the transistors attached to these sinks and other large solder joints around the board. Still the amp cuts out. Second time flipping the board I solder more joints and then tighten screws to heat sinks, 4 all together. Now the amp stays in fault mode. No sound at all.
I'm not sure if I'm just sharing this experience or will I even try to repair this thing. One part of me wants to remove the heat sinks and transistors and rectifiers off the board and see if anything is revealed.
What would you do in this situation?
thanks
So I think it's a solder joint. Flip the board and solder the transistors attached to these sinks and other large solder joints around the board. Still the amp cuts out. Second time flipping the board I solder more joints and then tighten screws to heat sinks, 4 all together. Now the amp stays in fault mode. No sound at all.
I'm not sure if I'm just sharing this experience or will I even try to repair this thing. One part of me wants to remove the heat sinks and transistors and rectifiers off the board and see if anything is revealed.
What would you do in this situation?
thanks
Comment