(TL/DR = pretty simple fix for power and chroma issues)
I had asked some questions in another thread regarding issues with a Panasonic WJ MX30 and an MX50, but thought I’d just address this in a dedicated post.
Both boards had chroma issues (intermittently green-y to B&W), and the 50 eventually just died, and wouldn’t turn on. This is apparently very common with these boards over time. Did some research and found this dude’s videos:
So, with that and the assistance of the service manuals that I found on this site, I opened them up and tested the capacitors on the power board that he identified (on MX50 C10,C11,C18). They indeed had issues, so I replaced, and can confirm they now seem to work perfectly.
I believe the chroma issues were related to problems with the power board. This may strictly be my case though. I am certainly no expert.
Just wanted to post this to give people who are experiencing the same issues some hope. I know it would be helpful to me. A lot of people told me I should just write them off and find others that work, but it only took a few new capacitors to fix.
So thx to this community for posting links to the service manuals, and bless JVS VISUALS on YouTube.
If anyone has a psu board for the mx50 I’m looking for one. I fused the transformer whilst chasing down this exact problem:)
The xfo is dead. A great mixer, be awesome to revive it.
The B bus is only showing green tone video, so I figure I have the same problem as you did. I figure I should go about it the same way, which is open it up and test out those capacitors. I’ve never done something like this before, any advice before opening up the MX50? I’m gonna allow a friend of mine do the actual capacitor replacement since my soldering never goes well.
It’s been so long I don’t have a great memory of the specifics. But if you watch those videos and match up his instructions with the repair manual from this site you should be good. I think I just replaced the three indicated capacitors. Hopefully this solves your issue. Let us know how it goes. Good luck!
Does anyone have a clue what might be going on with my Wj-mx30, It worked fine for quite sometime beside shutting off and turning back on when pressure was applied to the bottom left corner. Now it seems to not turn on at all. When I press the on and off switch back and forth i get some lights flashing but still does not turn on. I checked the capacitors they seem to be fine.
