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Main => Monitor/Video Forum => Topic started by: xxkodemanxx on July 05, 2009, 08:55:58 pm

Title: Little bright + Fuzzy and diagonal Scanlines :/
Post by: xxkodemanxx on July 05, 2009, 08:55:58 pm

Hey guys! back for some help.

Managed my power on problem and its on and working fine.

EXCEPT

It starts at a nice darkness...

but overtime it gets slightly brighter and more fuzzy.

also there are diagonal scanlines...

any ideas?

i can try to upload a pic tomorrow.
i mean..i can play still..just wondering if there was a simple fix.

used to knobs for the brightness..but it works only a little..and its still a tad fuzzy.


thanks guys!

Monitor is a NeoTec NT-2702

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: SirPeale on July 05, 2009, 09:29:50 pm

Has the monitor been capped recently?  Sounds like bad caps.

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: xxkodemanxx on July 06, 2009, 03:35:33 am

Quote from: SirPeale on July 05, 2009, 09:29:50 pm

Has the monitor been capped recently?  Sounds like bad caps.

was worried it could be something like that >_<

I got the cab w/ the monitor from someone.
so no idea when capping has been done.

guess ill have to look into some HOW-TOs
:P

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: SirPeale on July 06, 2009, 08:53:10 am

There are plenty of how-tos on this site.

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: xxkodemanxx on July 17, 2009, 10:22:32 pm

so while i was asking for help installing a cap-kit here:

http://forum.arcadecontrols.com/index.php?topic=94430.msg993400#new

i was suggested to try and adjusted the knobs on the flyback..
i did..and the picture got slightly brighter and the scanlines where worse.

so i adjusted the knobs back..

and when i powered on the monitor the screen when like pure white...then died..

now the monitor doesnt seem to power on :(

am i screwed?

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: Kevin Mullins on July 17, 2009, 11:32:31 pm

Starting to sound like a flyback failure.
Which is also why I had mentioned the SCREEN pot, may have been causing some of the brightness fluctuations. (and scanlines)
The flyback seems to be a common failure on the NeoTecs.

See if there is a part number of any kind on the flyback somewhere.

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: xxkodemanxx on July 18, 2009, 01:30:56 pm

UPDATE:

I plugged in the monitor today..

and it was making a faint ticking noise.
i think this is a good sign..because i searched the problem and someone had the same thing..and it was just a dead fuse.

as i stated before though..i have no idea where the fise is..or what it looks like.

anyone know off hand what type of fuse the neoec-2702 uses? im currently searching around for it.
a friend might be coming by to install a new one

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: Kevin Mullins on July 18, 2009, 06:15:27 pm

There's only one fuse on the chassis that I know of..... and if it blew you wouldn't even be getting the "ticking", it would be totally dead. (AC fuse where the power comes in)

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: xxkodemanxx on July 18, 2009, 08:26:09 pm

ya looks like its the flyback.

just trying to decide if iys worth the money to buy the flyback and hope thats the problem..
or get a new monitor.

thanks for the help though :)

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: xxkodemanxx on July 25, 2009, 09:42:21 pm

So i bought a new flyback from craig.
looks good and installed fine.

but i still have the same problem :(

i had a friend who is good with arcades install it and put it back in..and we are both stumped...

All we are getting is a faint ticking sound still..

like it trying to start but cant..

new flyback.
fuse looks good
and he says it doesnt seem to be a cap problem..

any ideas???

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: SirPeale on July 25, 2009, 11:12:24 pm

Did you test the horizontal output transistor?

Title: Re: Little bright + Fuzzy and diagonal Scanlines :/
Post by: xxkodemanxx on July 25, 2009, 11:21:25 pm

Im being pointed to as this being the problem.
i dont currently have a multimeter to test..but ill try to grab one tomorrow.

i wont be suprised if that is the problem though..

so 2 questions.

1. where do i test? (multimeter nub)

and more important..

where do i get a hot for the neotect 2702?

i think this might be the right one..but im not sure ;/
http://www.mcmelectronics.com/product/2SC5150

need someone to confirm