Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: WhereEaglesDare on January 17, 2011, 08:33:32 pm

Title: What value are these POTs?
Post by: WhereEaglesDare on January 17, 2011, 08:33:32 pm

(http://www.puttheglasseson.com/!images/projects/10-05-30-mvc-conversion/01-original-monitor-control.jpg)

This is a control board off of a WG 25K7194.

They all ended up getting broken and I need replacements.

Thanks.

Title: Re: What value are these POTs?
Post by: MonMotha on January 17, 2011, 09:52:36 pm

There's usually a number somewhere on the pot (look around the "collar" opposite the leads).  It will be something like 102.

The first two digits are the "significant" digits.  These are the first two numbers in the value.
The last digit is the "exponent".  This is the number of zeros after the "significant" digits.  The resulting value is in ohms.

So, for my example of "102", that's a 1000ohm or 1k ohm (k = kilo = 1000) pot.

Title: Re: What value are these POTs?
Post by: Ken Layton on January 18, 2011, 12:35:13 am

You have a k7000 series monitor and Bob Roberts sells a complete kit of pots for the k7000 remote board:

http://homearcade.org/BBBB/k7remote.html (http://homearcade.org/BBBB/k7remote.html)

http://homearcade.org/BBBB/parts.html#pots (http://homearcade.org/BBBB/parts.html#pots)

Contrast: 10k

Black Level: 2k

Vert position: 25k

Vert size: 200 ohm

Vert hold: 500k

Horiz position: 500 ohm