Darkish Picture


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Darkish Picture

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bogart219
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Oct 20, 2009, 11:51 AM

Post #1 of 18 (1508 views)
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Darkish Picture	Can't Post

Yellow again,
After I switched hyperboards, the picture on my set (57hdx82) appeared to be fine. Now for some resaon the picture looks to dark. I have a high definition cable box hooked up to colorstream 1 and a dvd player to colorstream 2 with component cables. Its the same in standard def as well as high def. The picture (in high def ) looks like it is real clear just darkish. I cleaned the lenses before my hyper repair. I tried turning the settings up in the menu for contrast and brightness but it didn't seem to make much of a difference. If I got into the service mode, are there settings in there that I could tweak to get my picture brighter again? Thanks!

jts1957
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Oct 21, 2009, 2:32 AM

Post #2 of 18 (1501 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

Try the Screen (G2) controls first. Wink

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Location: Far, Far Away

bogart219
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Oct 21, 2009, 11:07 AM

Post #3 of 18 (1496 views)
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Re: [jts1957] Darkish Picture [In reply to]	Can't Post

Hi jts,
It seems like the first few days after I swaped hypers, the picture was fine. I did notice that my Ant 2 input is not working. Wonder if this is related? By G2 you mean screen VR right? Would a hyperboard going bad cause the screen to be darker? Thanks!

jts1957
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Oct 21, 2009, 4:40 PM

Post #4 of 18 (1493 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

You should already know that answer - from your own experience - it can kill picture, raster, etc. Wink

Pg. 8 of SM.

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Location: Far, Far Away

bogart219
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Oct 21, 2009, 5:55 PM

Post #5 of 18 (1488 views)
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Re: [jts1957] Darkish Picture [In reply to]	Can't Post

Tried g2 controls, didn't seem to make a difference. Your right about that hyperboard, it might be on its way going out. Might be time to send it out for recap.

bogart219
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Oct 29, 2009, 8:32 PM

Post #6 of 18 (1468 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

Picture still on dark side. It seems clear but maybe not completely. After I put this last hyperboard in, the picture might not of been fine. Wife said she thought picture wasn't as bright before I started all this. I tried that touch focus button on the front and it came back with a touch focus error. Does this indicate my STk's need replaced?
Thanks!

bogart219
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Nov 2, 2009, 12:55 PM

Post #7 of 18 (1458 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

Do you think my touch focus error is related to my darkish picture?

bogart219
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Nov 11, 2009, 1:46 PM

Post #8 of 18 (1445 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

JTS1957,
When we were troubleshooting my set you had me turn up and down the G2 pots (top ones) on my set.
I did mark them with a sharpie before I moved them.
I'm still having trouble with a dark looking picture. After reading scores of post on different forums, people have said that you should never move these cause once you do you screw up the greyscale on it. Do you think this is what happened to mine? Before messing with the set my contrast was on 50 in setup, Now I have to put it on a 100
to watch it and even on this setting the dark scenes on the picture are still way dark. What do you think?

jts1957
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Nov 12, 2009, 12:03 AM

Post #9 of 18 (1443 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

I think you should judge gray scale by tuning in a black & white TV show (or possibly turning color level to zero) and running contrast and brightness through their range. At all "usable" levels, picture should NOT have a color tint to them.

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Location: Far, Far Away

bogart219
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Nov 12, 2009, 12:33 AM

Post #10 of 18 (1440 views)
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Re: [jts1957] Darkish Picture [In reply to]	Can't Post

I did this and didn't see no color. Does this indicate the gray scale is ok?

jts1957
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Nov 12, 2009, 12:40 AM

Post #11 of 18 (1438 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

The hardest thing for any color TV to do is reproduce a black and white picture at all usable levels of brightness and/or contrast. If yours passed, then its gray scale is fine.

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Location: Far, Far Away

bogart219
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Nov 12, 2009, 1:01 PM

Post #12 of 18 (1428 views)
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Re: [jts1957] Darkish Picture [In reply to]	Can't Post

Thanks JT,
At this point I'm sending this latest hyperboard in for repair. I'll post back in a couple of weeks if there was any change. Thank You!

mrhenrybell
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Nov 14, 2009, 12:16 AM

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bogart219
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Nov 14, 2009, 2:55 PM

Post #14 of 18 (1402 views)
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Re: [mrhenrybell] Darkish Picture [In reply to]	Can't Post

Henry, How much does that site pay you for referrals?

bogart219
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Nov 27, 2009, 1:22 PM

Post #15 of 18 (1383 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

Well I sent the hyper board out and had it recapped. Put it back in and still have the same problem, a darkish picture. I have to turn the contrast up to 90. Any thing else to check? Thanks!

jts1957
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Nov 27, 2009, 2:23 PM

Post #16 of 18 (1380 views)
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Re: [bogart219] Darkish Picture [In reply to]	Can't Post

Suggest reading the Service manual pages 10 thru 13.
A few things you can try, just be sure to "record" original values.

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Location: Far, Far Away

bogart219
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Nov 27, 2009, 7:52 PM

Post #17 of 18 (1374 views)
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Re: [jts1957] Darkish Picture [In reply to]	Can't Post

Will do. happy belated turkey day!

bogart219
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Nov 29, 2009, 1:01 PM

Post #18 of 18 (1364 views)
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Re: [jts1957] Darkish Picture [In reply to]	Can't Post

JTS, You were right again. It was the G2 knobs. When we were troubleshooting the set, I marked them with a sharpie. A little bit of movement made a big difference. When I checked them the first time from your suggestion early in this post, I started out just turning up the red knob, which made the picture reddish. I stopped there for some reason. While watching the tv yesterday and thinking about the problem I light went off in my head. Maybe I should try turning all three up and see what happens. Duh, That took care of the problem. Pictureis good again.
Once more thanks for all your help and patience!!

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