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Main => Monitor/Video Forum => Topic started by: GF_74 on March 08, 2008, 06:51:53 pm

Title: H-Pos Pot - How much movement should i be getting?
Post by: GF_74 on March 08, 2008, 06:51:53 pm

My game is a little 'off to the left', so i went to the monitor board to adjust the H-Pos pot, but i only get a slight movement on part of the pot's full range.

I have not yet tested the pot resistance (with multimeter), just wondering how much movement i should expect.

Any ideas.

GF

Title: Re: H-Pos Pot - How much movement should i be getting?
Post by: qrz on March 08, 2008, 10:22:21 pm

make /model of monitor ?/

there may be additional circuitry issues in h phasing .  check components

qrz

Title: Re: H-Pos Pot - How much movement should i be getting?
Post by: GF_74 on March 09, 2008, 05:34:36 pm

It a Nanao/Kaga monitor board (labelled KB240112), with a 19" Mitsubishi tube.

There are some images in this older post - http://forum.arcadecontrols.com/index.php?topic=75747.msg792433#msg792433

GF

Title: Re: H-Pos Pot - How much movement should i be getting?
Post by: qrz on March 10, 2008, 05:45:25 pm

quite possibly component fatigue considering the age of unit . start with lytics and then semiconductors ....
some sets do use a 4.7uF @50v non-polarized cap in sweep return......

qrz