2. amps-preamps
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Need Help with my Proceed AMP3

My AMP-3 has been working perfectly for more than 10 years.

Recently, something has gone wrong. It can still work but cannot be switched off by the power button.

I opened the case and found those red LEDs on the circuit boards are always ON. Pressing the power button has no effect on them.

Any ideas how this can be fixed.

Any suggestions would be most appreciated.

KK
kklee
7 responses Add your response
kklee OP
3 posts
 
One more observation.

Pressing the power button can toggle the front LED from orange to red or vise versa but the AMP3 is still always ON.
yogiboy's avatar
yogiboy
5,671 posts
 
Plug the amp into a power strip. Use that to turn the amp on and off!
https://www.amazon.com/Belkin-6-Outlet-5-Foot-Right-Angled-F9P609-05R-DP/dp/B0002AG0IO

kklee OP
3 posts
 
Yeah, that will work.
Just wonder if there is a simple way to repair the circuitry.
stereo5's avatar
stereo5
6,388 posts
 
You would have to replace the switch.
mrdecibel
3,063 posts
 
I leave my amp on 24/7. Enjoy ! MrD.
imhififan's avatar
imhififan
2,184 posts
 
https://3.bp.blogspot.com/-yv16P50tZSk/UrRIUilHwII/AAAAAAAACAM/vcM3k-CY5SE/s1600/IMG_0350.jpg
look for any burnt resistor, shorted transistor or leaked cap, also check the relay contact on this circuit board.
kklee OP
3 posts
 
Thanks for the advice.
Then  I will try to remove and test the two transistors first as it can be done easily.
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