television looking "washed out" in spots

[SweetYankeeTears]

Hey,

Been fiddling with this for a bit and guess I need to post it here.

I have a PCI ATI All-In-Wonder TV-out card and the special cable that
goes with it. That's connected to a new SANYO 24" TV from my PC
running Win '98 - using all this for MAME.

Now, after being on for about 3-5 minutes, you can see two distinct
areas on the screen that look to be getting a "washed out" look -
almost like the screen needs degaussing. It's not a degaussing issue,
tho. Then, as time goes by, they go away. Then, of course, they fade
back in. Kinda distracting and unacceptable for a new TV. The best
way to describe where on the screen these appear - get ready for it -
if a woman stood in front of the screen, centered, and pressed her
ample chest up against the CRT and left two impressions there - that's
where the areas of discoloration come and go.

I've tested the TV with my XBox (composite)- no such issue. Tried it
with my DVD player (s-video)- no such issue. So, I'm ruling out the TV
itself being fux0red.

So, it just seems to be the computer/vid card. It does it with either
S-Video or composite output.

Wondering if it's a simple matter of adjusting refresh or resolution
(trying all of that now) or I should buy another video card. I
wouldn't think it's a driver issue but you never know.

Anyone seen this? I get nothing on searches for this specific problem.

TIA.

BTW, the email is no longer valid. Replies here appreicated!

 

[Ray]

It might be a case of TOO High of Video levels causing clipping of signal
in brighter areas.. See if you have any way of turning down the contrast
range..

 

[[email protected]]

Now, after being on for about 3-5 minutes, you can see two distinct
areas on the screen that look to be getting a "washed out" look -
almost like the screen needs degaussing. It's not a degaussing issue,
tho. Then, as time goes by, they go away. Then, of course, they fade
back in. Kinda distracting and unacceptable for a new TV. The best

Wondering if it's a simple matter of adjusting refresh or resolution
(trying all of that now) or I should buy another video card. I
wouldn't think it's a driver issue but you never know.

I dont see how refresh or resolution could possibly affect it. But what
the cause is I simply dont know. You might try swapping in another vid
card (using a different driver) to see if it stops or continues.

NT

 

[David]

Hey,

Been fiddling with this for a bit and guess I need to post it here.

I have a PCI ATI All-In-Wonder TV-out card and the special cable that
goes with it. That's connected to a new SANYO 24" TV from my PC
running Win '98 - using all this for MAME.

Now, after being on for about 3-5 minutes, you can see two distinct
areas on the screen that look to be getting a "washed out" look -
almost like the screen needs degaussing. It's not a degaussing issue,
tho. Then, as time goes by, they go away. Then, of course, they fade
back in. Kinda distracting and unacceptable for a new TV. The best
way to describe where on the screen these appear - get ready for it -
if a woman stood in front of the screen, centered, and pressed her
ample chest up against the CRT and left two impressions there - that's
where the areas of discoloration come and go.

I've tested the TV with my XBox (composite)- no such issue. Tried it
with my DVD player (s-video)- no such issue. So, I'm ruling out the TV
itself being fux0red.

So, it just seems to be the computer/vid card. It does it with either
S-Video or composite output.

Wondering if it's a simple matter of adjusting refresh or resolution
(trying all of that now) or I should buy another video card. I
wouldn't think it's a driver issue but you never know.

Anyone seen this? I get nothing on searches for this specific problem.

TIA.

BTW, the email is no longer valid. Replies here appreicated!

I have seen two ATI tuner cards and one of the All In Wonder video cards
suffer from bad electrolytic capacitors. One of bad capacitors is in the
tuner AGC circuit which can cause washed out highlights. These are thru-hole
components and are easy to replace if you are into fixing electronics and
have an ESR meter to find the bad capacitors.

David

 

[TVhelp]

I have seen two ATI tuner cards and one of the All In Wonder video cards
suffer from bad electrolytic capacitors. One of bad capacitors is in the
tuner AGC circuit which can cause washed out highlights. These are thru-hole
components and are easy to replace if you are into fixing electronics and
have an ESR meter to find the bad capacitors.

David

Interesting. Checked the ATI site and did some googling, but can't
find any schematics for these cards. Anyone know where to get the
schemes? Replacing a few caps is within my realm of capabilities -
used to collect/repair arcade games.

 

[O'Neil's Faggy Prostate - You down with OFP?]

Interesting. Checked the ATI site and did some googling, but can't
find any schematics for these cards. Anyone know where to get the
schemes? Replacing a few caps is within my realm of capabilities -
used to collect/repair arcade games.

Well, if that's it, I can't replace those kind of caps. Damn small!
Anyone else with suggestions as to the potential problem, just in case
it's not the caps?

 

[David]

"O'Neil's Faggy Prostate - You down with OFP?" <[email protected]>
wrote in message

Well, if that's it, I can't replace those kind of caps. Damn small!
Anyone else with suggestions as to the potential problem, just in case
it's not the caps?

The AGC cap is inside the shielded tuner module. It is an electrolytic, is
relatively small, but not the very tiny surface mount caps you are probably
seeing.

David

 

[TVhelp]

"O'Neil's Faggy Prostate - You down with OFP?" <[email protected]>
wrote in message

The AGC cap is inside the shielded tuner module. It is an electrolytic, is
relatively small, but not the very tiny surface mount caps you are probably
seeing.

David

Hmm. . . didn't pry that open to get a look since that looked to just
be part of the "input" circuitry for the TV signal - coming in from the
coax input. I will give a look in there. Yes, the surface mounted
mini-Chicklet size caps are not for me to replace.

Thanx!