(Topic ID: 35328)

Vid's Guide to Bulletproofing Williams System 3-7

By vid1900

11 years ago


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  • 1,138 posts
  • 216 Pinsiders participating
  • Latest reply 21 days ago by jar155
  • Topic is favorited by 652 Pinsiders

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#5 11 years ago

Another Vid thread to stick in my favorites folder! Thanks! As a happy new owner of a Blackout will be following this one closely.

2 months later
#36 11 years ago
Quoted from vid1900:

Next section will be Sys6 power supply.

Important note to novices ( just learned this the hard way )
Couldn't wait for Vid's power supply tutorial and just recapped my system 7 board.
OBSERVE POLARITY!
The first couple caps I pulled off the board had a very prominant + sign on the black stripe, so I assumed that was industry standard and installed all the new caps on the board with the black stripe to the + solder pads. Call it a rookie error, but all the new caps have the black stripe on the - side. Needless to say, when I plugged it back in it didn't work and I hope I didn't f%#k anything up. Was only powered on for a second, got a strange hum and I switched it right off with no visible damage done. Now have to desolder all those caps.
Anyway - polarity!
And Vid, keep the tutorials coming, you da man!

cap_polarity.jpgcap_polarity.jpg

#38 11 years ago
Quoted from zippydapinhead:

Important note to novices ( just learned this the hard way )OBSERVE POLARITY!

Here's a pic of how NOT to re-cap a power supply. (and not to do board work late at night)

oops.jpgoops.jpg

#41 11 years ago
Quoted from Patofnaud:

Welp, they got some in right. Don't that count?

Nope, that C5 in the pic, I already flipped, it was wrong too.

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