Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: shifter on February 17, 2016, 08:57:18 am

Title: Polo with a wide picture
Post by: shifter on February 17, 2016, 08:57:18 am

Just wondering if anybody can shed any light on a problem ive got with a hantarex polo 28, bascally the picture is just really wide, the H Amp pot appears to do nothing but measures ok.

Any help appreciated, thanks.

Title: Re: Polo with a wide picture
Post by: shifter on February 17, 2016, 10:22:36 am

ok so i have sorted the width problem, turns out the insulation sheet behind T118 was missing ! I now seem to have broken white lines running horizontally across the picture, any ideas ?

Title: Re: Polo with a wide picture
Post by: shifter on February 17, 2016, 11:35:42 am

(http://s11.postimg.org/5xse4j0o3/20160217_153946.jpg)

Title: Re: Polo with a wide picture
Post by: baritonomarchetto on February 17, 2016, 12:02:50 pm

Looks like a ground issue to me: do you have your monitor chassis grounded?

Title: Re: Polo with a wide picture
Post by: grantspain on February 17, 2016, 06:31:13 pm

can you put up a photo of the chassis near the power input connector and also the remote board

Title: Re: Polo with a wide picture
Post by: shifter on February 18, 2016, 04:46:16 am

Thank you for you time in replying guys,

Yes i believe the monitor is earthed correctly and hopefully these pictures will help.

(http://s16.postimg.org/z3vxxe7up/20160218_091314.jpg) (http://postimg.org/image/z3vxxe7up/)

(http://s16.postimg.org/q3mqzgmdd/20160218_091322.jpg) (http://postimg.org/image/q3mqzgmdd/)

(http://s16.postimg.org/8wur1fpkx/20160218_091326.jpg) (http://postimg.org/image/8wur1fpkx/)

Title: Re: Polo with a wide picture
Post by: baritonomarchetto on February 18, 2016, 06:27:14 am

I am at the phone, but from what i can see "from here" no, they do not help to say the truth.
Post a pic of the monitor connected as it was when you tested it.

Title: Re: Polo with a wide picture
Post by: grantspain on February 18, 2016, 08:17:16 am

so is that a manual switching 15/25 or fixed 25khz chassis
btw the width transistor should be bolted the the extension frame on these chassis as they really do run those transistors hard

Title: Re: Polo with a wide picture
Post by: ed12 on February 18, 2016, 09:24:54 am

from the first pic the op posted
it looked like a sync problem
ie:+ instead of -
ie:- instead of +
what game are u running this monitor on ?

ed