I have noticed that the 24v supply is low (about 22v), but nothing I do seems to correct the problem. I have replaced all capacitors in the poower supply circuits. I also replace ZD1. Do you think the supply could be causing the LED problem? The amp works as it should in all the modes.
SOURCE: Two Jamo MPA-101 amps not working
I can almost guarantee that you'll find bad electrolytic caps on the power supply board to be the cause of the problem. I've seen several of these with the same problem. The protect circuit stays latched due to excessive ripple.
SOURCE: Jamo MPA-101 2 channel amp quit working
Check the small electrolytics on the power supply board for high ESR, Very common problem on these amps. Protect circuit stays latched due to high ripple from PS.
SOURCE: I'm replacing a JAMO amp.
The 201 is 100w in to 4ohms and the 101 is 50w into 4 ohms other then that there the same
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