Telefunken m15a. Need repair

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Chan

New member
Joined
Nov 6, 2018
Messages
3
Hello, everyone
My Telefunken m15a has failed when I started the machine
The fuse in the s3 position melts down within a few seconds
I reinstalled the new 1.25A fuse (slow burn) and the problem remains unresolved!
The machine loses power!
This is very frustrating!
Does anyone know the cause of the malfunction? I will be grateful!
Chan
 
Chan said:
Hello, everyone
My Telefunken m15a has failed when I started the machine
The fuse in the s3 position melts down within a few seconds
First you need to check the rectifier bridge Gr2 and capacitor C5.
If they are ok, it means something on the 15V or 12V  line is shorted.
 
Quick reply and grateful
I finally found the circuit diagram of m15a.
I removed the c5 capacitor, the cr2 rectifier bridge and the MC7812 regulator. I don't know if they are malfunctioning. (I don't know how to fix it)
So I use a stupid way. I will buy a brand new replacement for them.
 

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