STEG 75.6mx in protect

[nino80]

please look at post #16 and #14...

 

[Perry Babin]

OK. It will have to be tomorrow morning.

 

[nino80]

just measured U15:

IC#U15 (LM3580)

all in V DC

PIN 1: 0,001
PIN 2: 0,535
PIN 3: 0,001
PIN 4: 0,001
PIN 5: 0,004
PIN 6: 0,533
PIN 7: 0,533
PIN 8: 0,019 --> direct connection to U16, PIN 15. Same value.

 

[Perry Babin]

What are the markings on Q43?

If I understand the circuit as described, Q43 is directly connected to pin 15 of the 3525. If so, which terminal of Q43?

What is the DC voltage on the terminals of Q43?

 

[nino80]

sorry for the late reply...

in the meanwhile i received the service manual and solved my prob...

i will write it in detail when i have some more time...

if you are interested i will forward you the service manual as a small present for your great support...

thanks again perry babin!

 

[Perry Babin]

Yes. Please send me a copy of the service manual.

babin_perry@yahoo.com

 

[Mate93]

Hi,
I have the same problem with this amplifier. Is there any chance that you still have the service manual? If you have please send me. Thank you. 🙂
debreceni.m@freemail.hu

 

[Perry Babin]

Please don't post in a repair thread that was started by someone else unless you are trying to help them.

Start a new thread if you need help with a repair of your own.

Check your email.

http://www.bcae1.com/temp/newthreaddiy01.png