Sanyo 20EZ Help

HighScoreSaves

Well-known member

Donor 7 years: 2013-2019
Joined
Mar 23, 2007
Messages
15,831
Reaction score
757
Location
Blaine, Minnesota
Ok, not my first rodeo, but I am missing something here.
Just got done with capping this Sanyo and turned it on. I have not seen this issue before, anyone have ideas?

The right side of the screen looks fine, the left side looks stretched. Pics are not the best, but I hope someone can figure it out.

Dokert, your thoughts?
 

Attachments

  • 002.jpg
    002.jpg
    82.7 KB · Views: 53
  • 003.jpg
    003.jpg
    83.6 KB · Views: 43
  • 004.jpg
    004.jpg
    92.3 KB · Views: 38
Was it doing this before you capped it?

I'd go back through and double check to make sure you used all the correct caps in the correct spots, and didn't get any installed backwards.

-Ian
 
Thanks for the reply!

It was not doing this before the caps. It was faded at the bottom, but no fold over in the middle of the screen.

I did verify each cap was installed correctly (most likely I will check a 4th time today) and the cap values are from Bob Roberts deluxe kit. He has a good map.

I have never seen this and was curious if anyone else has. Like stated above, it is stretched on the left side, however, the right side looks fine...
 
The weird thing is the foldover in the middle. Stretched on one side and not on the other is easily corrected with the linearity control.

-Ian
 
very odd

Bob is using a new brand of caps that are pretty crappy. I forget the name of them, but they are not the old Xicon's that he used to sell. I have heard that some of these new caps fail immediately if not sooner. Look for the non Xicon caps that came in the Bob kit and start by replacing those caps with at a minimum Xicon's or better like a Nichicon.

Dok
 
Just a thought -- messing with the pot's on my DK board seems to screw with the linearity even though its synced -- maybe now you need to adjust the board a little after the cap kit
 
ISSUE RESOLVED -

I pulled the chassis out again and flipped it over.
C459 didn't have a good bond on the positive leg. Reflowed.
Then, examining the rest of the board, found a leg I didn't clip at C406!

Long story short, after replacing C406 with a new cap (10uf50v) it comes up nice and pretty.

Guess after recapping about 100 monitors, it always pays to recheck and check again.

Thanks for all that helped!
 
Back
Top Bottom