Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: FrizzleFried on April 09, 2007, 10:44:32 am

Title: Sanyo 20EZ Vertical Position
Post by: FrizzleFried on April 09, 2007, 10:44:32 am

I have managed to successfully convert a Nintendo Donkey Kong Jr. cabinet to JAMMA.  I am having one last little bit of trouble though.  My DK Jr. PCB had the VERTICAL POSITION pot on board of IT'S PCB,  as a result,  the V-Position pot on my Sanyo 20EZ doesn't seem to do a damn thing.   Also,  next to said V-Position pot is 3 posts that in a drawing I located online indicate "V-Center".  All 3 posts are un-jumped.

I have been given a suggestion to jump either the middle & top or the middle & bottom pins and that once that is done,  the V-Position pot will likely be functional. 

The problem I am having is that the screen will not move all the way to the left...there is a gap of about an inch.  On my DK Jr,  it was a simple adjustment of the on board Vertical Position pot... being that there is no such thing on this 48-in-1 (that I know of),  I am left in the situation I am here describing.

Before I go jump any pins on my chassis,  I would like at least one person to confirm the instruction above...

THANKS!

Title: Re: Sanyo 20EZ Vertical Position
Post by: Ken Layton on April 09, 2007, 12:39:50 pm

Quote from: FrizzleFried on April 09, 2007, 10:44:32 am

I have been given a suggestion to jump either the middle & top or the middle & bottom pins and that once that is done,  the V-Position pot will likely be functional. 

The problem I am having is that the screen will not move all the way to the left...there is a gap of about an inch.  On my DK Jr,  it was a simple adjustment of the on board Vertical Position pot... being that there is no such thing on this 48-in-1 (that I know of),  I am left in the situation I am here describing.

Yes as originally shipped in Nintendo cabinets the Sanyo 20EZ did not have the vertical position jumpers installed. The vert position pot will not work without those jumpers connected as mentioned above. I make my own jumper wires with female Molex .093 sockets on each end. Then slip some heat shrink tubing over the ends.

I forget which set of jumpers, but either middle to top or middle to bottom allows more vertical shift to the top of the screen or more vertical shift towards the bottom of the screen. You'll have to try.

If you don't have any jumper wires ready made, go to Radio Shack and get some of those jumper wires with alligator clips on each end. They'll work for testing purposes.

Title: Re: Sanyo 20EZ Vertical Position
Post by: FrizzleFried on April 09, 2007, 01:07:33 pm

Thanks Ken for the confirmation.