Avalon vt-737sp

[Jdm5149]

Also I’ve been looking at a lot of YouTube videos about troubleshooting and circuits. Any good books also u guys might recommend

 

[Jdm5149]

Been watching this guy a lot.

 

[Jdm5149]

Hey there. Big news. Got a ssl4000e. It’s in not that good condition but I think it’s gonna be a great board again once I finish. Should I start a new thread or are there other threads open that could help. I want to start with the channels and was wondering if it is possible to test them disconnected from board? Im selling off things to pay for the board but the Avalon 737 is not one of them. Definitely a keeper.

 

[pucho812]

Hey there. Big news. Got a ssl4000e. It’s in not that good condition but I think it’s gonna be a great board again once I finish. Should I start a new thread or are there other threads open that could help. I want to start with the channels and was wondering if it is possible to test them disconnected from board? Im selling off things to pay for the board but the Avalon 737 is not one of them. Definitely a keeper.

Congrats on the new desk. I hope it came with the manuals. I also hope you have the program disk or can do the vca fader bypass so the desks works.

 

[Jdm5149]

Thanks. I was gonna wait til I moved but the deal was I hope too good to pass up. Got all the disks but no computer. Just power supply Eventually a tangerine I just want to start working on channels by themselves. The desk will be in storage. Can I make a test jig for the channels. I see a 4000 extender on eBay. Should I get it

 

[chrispbass]

Hey there. Big news. Got a ssl4000e. It’s in not that good condition but I think it’s gonna be a great board again once I finish. Should I start a new thread or are there other threads open that could help. I want to start with the channels and was wondering if it is possible to test them disconnected from board? Im selling off things to pay for the board but the Avalon 737 is not one of them. Definitely a keeper.

Best to start a new thread

 

[deveng]

I've acquired all the replacement parts for the I/O board but found some burned trances below Q9 that halted my rebuild. The top side is burned deep so I'll have to rebuild some connections. The bottom side is burned as well but looks like all the traces are there.. I've attached some pictures of the area. Can someone tell me if the traces I've marked are correct? I've also attached what looks to be the connections to Q9 (BD140). The circuit diagram just shows the trace connections in question. There are other wired connections but those trace are all intact so I'm not concerned about those. If anyone has close-up pictures of their board showing these connections that would help too.

 

[pucho812]

Can get you photos when I get in

 

[Jdm5149]

I’m away this weekend. I can try next week.

 

[pucho812]

@deveng

Hope this helps. if you need more photos beyond this, let me know.Might I suggest the following as well. As part of the repair process, replace all the 10UF and 100UF caps. They should be 63VDC nd 50VDC respectively. I use Panasonics as I don't care for the caps they used in the builds.

 

[deveng]

@deveng

Hope this helps. if you need more photos beyond this, let me know.Might I suggest the following as well. As part of the repair process, replace all the 10UF and 100UF caps. They should be 63VDC nd 50VDC respectively. I use Panasonics as I don't care for the caps they used in the builds.

Thanks pucho. I found that photo already and it doesn't show enough detail around/under Q9 transistor on the top layer. I think I need a close-up of the area around Q9 if anyone has one or can take one easily.

 

[Jdm5149]

I’ll try to take a pic tonight.

 

[Jdm5149]

 

[Jdm5149]

That good ?

 

[deveng]

That good ?

I think those are great, thanks for your efforts!

 

[TheseGoToEleven]

Another gut shot of the I/O board if it helps