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(Topic ID: 202127)

WMS system 3-4 sound board - cap polarity


By danczaz

3 years ago



Topic Stats

  • 14 posts
  • 4 Pinsiders participating
  • Latest reply 3 years ago by danczaz
  • Topic is favorited by 1 Pinsider

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There have been 7 images uploaded to this topic. (View topic image gallery).

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#1 3 years ago

Went to recap sound board and cut off all caps... didn’t realize the system 3-4 early board polarity isn’t easily identified on board (little + on board for each cap) or schematics...anyone help me out and maybe mark up this with + for polarity... thanks Dan

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#2 3 years ago

5204FB2B-5F31-4F1C-8FA8-B09ABE960FFA (resized).jpeg

#4 3 years ago

Getting closer... can’t tell all of them w/o the axial style and they didn’t replace one.

#5 3 years ago

IMG_5078 (resized).JPG

#6 3 years ago

Not sure I can make that out

#7 3 years ago

I think this is right so far...

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#9 3 years ago

Anyone recap one of these recently that can provide a photo?

#11 3 years ago

Post 7 is good but still need to do C27 and C30. C27 is the one with the paralleled ceramic cap.
C27 has the same orientation as C13 and C14 -- positive end down.
Same for C30. Positive end down.

Oldschoolbob had a good photo. Showed the postive end marker for all caps oriented down except for the main filter cap C29 and C10 oriented up.

#12 3 years ago
Quoted from G-P-E:

Post 7 is good but still need to do C27 and C30. C27 is the one with the paralleled ceramic cap.
C27 has the same orientation as C13 and C14 -- positive end down.
Same for C30. Positive end down.
Oldschoolbob had a good photo. Showed the postive end marker for all caps oriented down except for the main filter cap C29 and C10 oriented up.

Ahh... so that with notch on end of those old caps shows that the positive end... thanks!!! Also you got a $100 cap order from me... this was my last kit and needed to stock up

#13 3 years ago

Here is a system 6 hope it helps

image (resized).jpeg

#14 3 years ago

Thanks Guys

EEED0757-9E34-42A7-BA6B-6417913103A6 (resized).jpeg

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