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M -1000/U Main circuit board 1 help

gosmeyer

gosmeyer

Active Member
Hello all,
Does anyone have a quality image of main board 1 pattern side?
I have downloaded several service manuals but none have a quality image. I need to see where the jumpers go.
Several traces lifted for connections to sub1 and sub 2. I can go pin to pin but my images are all too dark to see.
CFEC52C3-7C8C-42D1-A187-8DDD4E794FF2.png
Thanks in advance.
 
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I know, That’s how I received it. Up side is it’s in amazing cosmetically. No dents dings or anything. Plastic side panels don’t even have damage. Sub1 and Sub 2 look great as well.
Just connecting them to main is the issue.
I’ll try to just study what I have and go from there.
Service manual, and both sides of the board.
Just wish images were cleaner o_O

Thanks
 
gosmeyer said:
Hello all,
Does anyone have a quality image of main board 1 pattern side?
I have downloaded several service manuals but none have a quality image. I need to see where the jumpers go.
Several traces lifted for connections to sub1 and sub 2. I can go pin to pin but my images are all too dark to see.
View attachment 1945778
Thanks in advance.
Click to expand...
what are the first three digits of the serial number of the unit? E0XX...?
 
gosmeyer said:
E01657
Thanks, was reading about your board rev.
NA09 766 blacked out 960 here
Click to expand...
OK, the service manual should have your version of the main board.
you will have to do a few changes to the driver boards, if the mfg did not do it as part of warranty. Those are not documented in any service manual.
 
Thanks,
There has been a lot of previous work done to this machine before I acquired it so it might be hard to tell? Other than a tired main board (so far) it’s pristine.
Any additional information would be greatly appreciated.
 
gosmeyer said:
Thanks,
There has been a lot of previous work done to this machine before I acquired it so it might be hard to tell? Other than a tired main board (so far) it’s pristine.
Any additional information would be greatly appreciated.
Click to expand...
I will look for a board and post a photo.
in the mean time, post a photo of yours and the questions you have
 
gosmeyer said:
There has been a lot of previous work done to this machine before I acquired it so it might be hard to tell?
Click to expand...
did you consider sending the amp to Avionic? if you have not, you probably should...(if he has space on his bench).
This is a difficult amp to repair, particularly if something is messed up in the HCA circuit
 
clean board..
upload_2020-8-9_19-26-55.png

removed the auction site link from my prior post

The OP should be able to see the missing traces on his...
 
Last edited:
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