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Author Topic: Hantarex Polo 25 not sharp image.  (Read 3471 times)

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vbobrusev

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Hantarex Polo 25 not sharp image.
« on: July 27, 2021, 11:56:45 am »
Hi! And sorry if it's stupid or common question, but I am absolutely zero in restore arcade monitors. I just purchased MK2 cabinet and it has Polo 25 Monitor. I have boards from WWF Midway and connect it to cabinet. When I turn on power it shows not sharp image. I recorded video and upload it here. https://cloud.mail.ru/public/pdQs/YLQzidCRo I am tried adjust it via monitor remote control, but no luck... Any ideas what it can be?

Thanks!
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Ropi Jo

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Re: Hantarex Polo 25 not sharp image.
« Reply #1 on: July 27, 2021, 01:30:13 pm »
Have you tried the focus control on the flyback (loptx)? It's the large (usually black) component with thick red cables going to it.

CAUTION.... high voltages!!! Be sure to wear rubber sole shoes and keep 1 hand in your pocket. If there is a slot in the control then use an insulated screwdriver.
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vbobrusev

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Re: Hantarex Polo 25 not sharp image.
« Reply #2 on: July 27, 2021, 02:09:40 pm »
Quote from: Ropi Jo on July 27, 2021, 01:30:13 pm
Have you tried the focus control on the flyback (loptx)? It's the large (usually black) component with thick red cables going to it.

CAUTION.... high voltages!!! Be sure to wear rubber sole shoes and keep 1 hand in your pocket. If there is a slot in the control then use an insulated screwdriver.

Thanks for advice! I didn't know about it, it's ok if I will do it with rubber isolated screew driver and will have rubber gloves?

Any other safety advices?
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vbobrusev

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Re: Hantarex Polo 25 not sharp image.
« Reply #3 on: July 27, 2021, 04:28:15 pm »
It works! Thanks! But on bottom it have black area and I can't adjust it via remote control. I can adjust wide and horizontal positions, as I remember I have adjust height but I can't adjust vertical position, where I can do it?
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Ropi Jo

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Re: Hantarex Polo 25 not sharp image.
« Reply #4 on: July 27, 2021, 05:33:28 pm »
Somebody more experienced with this particular chassis will need to advise you on adjusting the V position, but it's getting closer!
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grantspain

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Re: Hantarex Polo 25 not sharp image.
« Reply #5 on: July 28, 2021, 12:56:14 am »
try the vertical inearity pot- its near the vertical deflection ic but the vertical shift should still work
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vbobrusev

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Re: Hantarex Polo 25 not sharp image.
« Reply #6 on: July 28, 2021, 02:22:37 am »
Where I can adjust it? on remote control or on chassis? Where I can find this handle for adjust?
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grantspain

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Re: Hantarex Polo 25 not sharp image.
« Reply #7 on: July 28, 2021, 02:30:23 am »
web search hantarex polo vertical linearity pot
1k vertical shift pot is a common failure on the remote, they get corroded
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vbobrusev

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Re: Hantarex Polo 25 not sharp image.
« Reply #8 on: July 28, 2021, 10:58:43 am »
Now everything is perfect. Thank you for help
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