Panasonic SH 3433 Scope help

[appleknocker63]

I just bought a panasonic scope to use in my quad setup.
It was too cool to resist and was supposed to be fully working..
we know how that goes sometimes and
Unfortunately, the left rear channel isn't working.
It isn't something simple because I have spent a lot of time with it
making sure I have it hooked up right. My amp is working for sure too.
Here are some specifics.
1.The left rear channel DOES work in the waveform mode, but not in the 4
channel mode. Leaving me to believe it isn't the left rear inputs.
2.Also in the wave form mode, I can increase the gain or the positioning
and it does show images on the screen monitor where the 4 channel
left rear images would be if it was working so it doesn't seem to be in the screen
either.
3. I have tried the speaker inputs as well as the rca inputs and both have the same problem.
4. Everything else works really great. The focus, gain, and all other adjustments are great
and the image is clear and bright with great detail.
Any ideas on how to get this fixed?
Would it be an easy fix for a good tech?

Thanks in advance!!!!

 

[Circular Vibes]

I think it may be as simple as cleaning the switches. Any good tech should be able to troubleshoot it for you. ||At least you don't have the dreaded dead transformer. Good luck and let us know how you get on please. Any info on these scopes is invaluable to the next guy that buys one.

 

[appleknocker63]

Thanks for the help! - I did deoxit the switches too.
I had high hopes it would be the 4 channel to wave form switch deoxit cleaning that would fix the problem.
But that didn't work either.
There must be some electrical part not allowing the signal from the left channel to get all the way through.
Finding that is going to be over my head.
I will keep updating the cause and fix to help future owners too.

 

[essence25]

I'm in the process of having the transformer in these units re-manufactured but need aditional info on current values for each of the outputs. There was a person that had these remade but cannot get a hold of him.

Anyone?