Thank you Frede, I didnt try with a signal, but I went through switches in aux with an Ohm meter, where I couldnt follow them through the diagram, I checked every single switch on the solder side of the switch board, I checked every single switch several times on/off on the solder side and non showed problems, I will go on checking with a signal feed. 

Please also check the small finger switches for PHONO - RADIO (level and impedeance).

A lot of signal switching is taking place by the PHONO function switch.

According to your description the left channel is of course the area to look for the problem.

/Frede

classic wrote:

Please also check the small finger switches for PHONO - RADIO (level and impedeance).

A lot of signal switching is taking place by the PHONO function switch.

According to your description the left channel is of course the area to look for the problem.

/Frede

Forgot those 🙁

Søren Mexico wrote:

Back to the thread, only post if you have help to offer, 

Understood.

get out a magnifying glass and look for dries - maybe ? I ran into that issue once-. I am also prone to forget to soldering  caps altogether.

After 8 hours more looking for failures I am done for, will leave it a couple of days, in the weekend I will post what I have done searching and how, then give a detailed failure description, and hope for some help. If needed I will strip it down again and start over, or do as I did with the BM 4400. 

At the moment I am dizzy from reading schematic and manuals, the FS is pestering me with totally unimportant things I have to do.

Will be back with more on Sunday

Sending positive energy and good Karma your way, sir.  Good luck.

Hi Søren,

I really had hoped that you would be finished with your FS’s duties by now and had an update for all of us.

I know you said don’t post unless you have help to offer, but I figure that you won’t mind my sending my wishes for an “enlightened” solution to your problem or problems. 🤒

You are Danish and know they are the best…. you WILL do it.

Now I’ll keep quiet.

Jeff

I will get it there Jeff, but work vise the sh!t hit the fan and as Xmas comes nearer I have to participate in some "have to be there boring events" this will continue until beginning of January, the good news is that the BL works perfectly with tape in, so the failure is isolated to a few sections. but as my software scope isn't working its difficult to follow the sound path. Will be back when more time is on hand  

Yes Søren, we all have experienced the season….. and are.  

Tomorrow we are having American Thanksgiving, the whole enchilada with an enormous turkey, stuffing, mashed potatoes and gravy, peas, yams, and a pumpkin cheesecake for desert.

It’s a dirty job, but someone has to do it. 🙂

As for your Beolab, excellent news that it functions in the TAPE mode. That means you are CLOSE! Very close.

Look forward to hearing what the fault was and how you fixed it!

Jeff