Mackie TH12A Amp section

Thread Starter

Langco

Joined May 7, 2020
2
Hi,
I have a question on a Mackie Thump TH12A amp.

Repaired the PS section and the Output section. It sounds great; fully functional but... it cuts out after 60-120 sec. Re-power it and it is back on.
(It was really burned up when I received it).

I did replace the two FETs and Zener diode in the MUTE ckt. to no avail..
I am not sure what the temp sensor is..
Please advise.
Thank you,
Richard
 
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