Hello all,

A very helpful guy at work has just replaced the 10,000UF 35V caps on my Congo's WPC95 power and AV boards.
He did my AFM's WPC95 power board a while back too, and it works well, so he's got the soldering skills.

However, for the Congo AV board; I'd ordered some new 220UF 160V caps to replace the older C28 & C42 ones (like for like, but better temp rating of 105deg) but they didn't turn up in time, so he's fitted 330UF 200V caps instead...

My question is; will this higher UF still work?

I'm using a standard dot matrix for the time being until i can afford a ColorDMD.

Advice appreciated.

Cheers.

Bizarrely, the manual shows C28 & C42 as 150uf 160v, not the 220uf I had fitted, so he's at least doubled the capacitance!
Unless the manual is incorrect...

image_(resized).jpeg

Some googling found this old dialogue:
http://forums.arcade-museum.com/archive/index.php/t-207727.html

The end of the conversation suggested:

"Increase them. Sorry, forgot to mention the recommendation for change to higher value components. The 150uf/160v is a bizarre size that is a bit more difficult to find. The 220uf/160v is a much more common size, and in this circuit the increase doesn't hurt anything."

Thank you for the info.

So are we assuming that this is one of those 'most applications' where the higher value of capacitance (220% of original specification) is acceptable? I believe this part of the PCB smoothes a voltage for the DMD. I'm happy about the higher rated Voltage, totally get that bit.