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20PT633R01 slanted picture

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Ron.M
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Oct 9, 2013, 11:58 PM

Post #26 of 44 (1434 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;.....

NO offense here...
But the lingo that you use for the description of your problem is hard for me to figure out...
That's why I NEED good pix...
So I can see what you are talkng about...
What kind of camera are you using ???
Does it have an autofocus built in ???
Try retaking those pix with video & without any other additional lighting...
IF they do NOT CLEARLY show the symptom(s) , please do not post them...
Thanks.... Sly

...

Later...Ron.M... Cool

...
Veteran & Retired TV technician

Goofy
New User

Oct 10, 2013, 12:42 AM

Post #27 of 44 (1425 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

Ron, it's a 3.1MP Digital Concepts camera. I don't see a model number anywhere. It was given to me so I don't know much about it. It doesn't have many controls... It autofocuses.

Here is an annotated pic with video. I didn't resize it so if you download it and view it in Windows Picture and Fax Viewer (or other picutre viewer) you can zoom in and see what I'm talking about fairly well. If you zoom in you can read the annotations too!

http://i41.tinypic.com/242985e.png

I tried some closer pix but they didn't turn out so well...

I hope this helps!
Crazy

Ron.M
Veteran

Oct 10, 2013, 5:51 PM

Post #28 of 44 (1403 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;....

A few more questions before I give you my results...
How does the video look onscreen ???
It it sharp & clear , in focus ???

Later...Ron.M... Cool

Veteran & Retired TV technician

Goofy
New User

Oct 10, 2013, 6:06 PM

Post #29 of 44 (1401 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

Ron, yes. Video looks fine except for the slanting.

Crazy

Ron.M
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Oct 10, 2013, 6:49 PM

Post #30 of 44 (1396 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;....

1st the good news;....

THANKS for the good pix...
I can see what you are talking about...
BEST pix yet...

Now the bad news;...
(SORRY !!!)..

It is NOT a mechanical adjustment.... Unsure

...

You have possibly 2 or more Factory adjustments that for some reason or other have slightly gone off kilter...
One would be #11 on the pix in post #15...
Another could be #7 , & possibly a little of #12 mixed in...
At any rate , all those adjustments MUST be done by a qualified TV tech...
It is a complicated procedure to get into the Factory Menu & DO the adjustments without screwing up the set permanently....

My advice would be to just use the set as-is as long as you can & try to enjoy it...

Wish I had better news for you , but sometimes life gives you a kick in the arse...

Good Luck.... Sly

...

Later...Ron.M... Cool

..
Veteran & Retired TV technician

Goofy
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Oct 10, 2013, 7:16 PM

Post #31 of 44 (1393 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

Ron, well if you say so then I'll live with it... BUT does that apply to the left-to-right drooping too? The phosphor lines themselves seem to be slanted in that case. Would a mechanical adjustment help there?

Quote

The reason is that IF the slants run in the SAME direction in the SAME amount from left to right , the fix is a mechanical adjustment...

That sounded spot-on to me...

Even if the problem is electrical in nature a mechanical adjustment might help. (My first thought about fixing this was to put something under the TV to raise the right side to compenste for the drooping... dumb, I know.)

Thanks for all your help.

Crazy

Ron.M
Veteran

Oct 10, 2013, 8:00 PM

Post #32 of 44 (1389 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;....

Quote

BUT does that apply to the left-to-right drooping too?

Yes...
From what I can see in your pix , there is no drooping across the bottom of the pix...Correct ???

Quote

Would a mechanical adjustment help there?

No....(Wellll , maybe)...

Quote

Even if the problem is electrical in nature a mechanical adjustment might help.

Only slightly...
Answer the above question ...
(1st quote)..

Later...Ron.M.... Cool

...
Veteran & Retired TV technician

Goofy
New User

Oct 10, 2013, 9:58 PM

Post #33 of 44 (1380 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

Ron, the drooping does occur all the way down the screen and looks uniform to me.

It's not very obvious in the most recent pic, but you can see it a bit better in the first pic in post #22. I measured the, um, pixels (talking about a pic here! not a crt!) and it's definitely drooping (if you want I can post the un-re-sized image...). I've also seen it drooping at the bottom with video displayed.

If it's not too much trouble, could you give me some instruction or references on how to adjust a CRT mechanically? I really think it's worth a try in my case.

Crazy

Ron.M
Veteran

Oct 10, 2013, 11:05 PM

Post #34 of 44 (1376 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;.....

I will need GOOD , CLEAR & IN-FOCUS PIX !!!!!

Remove the back cover of the TV....
On the rear of the CRT is a transformer that goes completely around the neck of the CRT...
You will see copper wiring...
That is called a "yoke"...
I need a close-up pix (NO closer that 12" or NO further than 15")..
The view is from the top looking down...

Later...Ron.M...
Veteran & Retired TV technician

Goofy
New User

Oct 10, 2013, 11:57 PM

Post #35 of 44 (1374 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

Okay, I'm working on it... it's just...

I didn't realize that it used security screws (star indentations). Oops. Might have to source these somewhere... Unimpressed

Sorry for the delay... Thank you for your patience with me!

Crazy

guesswhooo
New User

Oct 11, 2013, 2:54 PM

Post #36 of 44 (1364 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Your dilema is easily remedied my friend. Simply place a book with the 2centimeter thickness beneath the lower edge.

Ron.M
Veteran

Oct 11, 2013, 5:22 PM

Post #37 of 44 (1358 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;....

1st , IGNORE that dip$#*t "guesswhat he is"....

The tool you need should be what they call a Torx driver....
Go to Walmart , RadioShack , Home Depot or any electronic supply store & ask for a Torx # T 10 driver....
It should look like a regular screwdriver except the head end will be different...
Won't be expensive...

Later...Ron.M... Cool

...
Veteran & Retired TV technician

t0nito
User

Oct 11, 2013, 7:34 PM

Post #38 of 44 (1350 views)
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Re: [guesswhooo] 20PT633R01 slanted picture [In reply to]	Can't Post

In Reply To

Your dilema is easily remedied my friend. Simply place a book with the 2centimeter thickness beneath the lower edge.

STFU...

Goofy
New User

Oct 12, 2013, 7:31 PM

Post #39 of 44 (1335 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

I tried... I even brought in the high-powered assault lamp from the garage and built a little bridge to help keep the camera steady, but I don't think they're clear enough for your standards.... Unsure

Maybe one of these 20 pix, or the combination of different angles/distances, will be good enough...

http://www.mediafire.com/...bik6e8f/Neck_Pix.zip

Ron.M
Veteran

Oct 12, 2013, 10:03 PM

Post #40 of 44 (1327 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;....

Those are the WORST G.D. PIX ANYBODY had the balls to send to ANY TECH !!!!

What makes you think ANYBODY can POSSIBLY make out ANYTHING from those pix ????

Either get a different camera or don't bother me...

Remember;=>...

Quote
I will need GOOD , CLEAR & IN-FOCUS PIX !!!!!
What part of that do you NOT understand ???

IF YOU can't make out ANYTHING in those pix , what the HELL makes you think I can ???

Quote
I don't think they're clear enough for your standards....
They're NOT clear enough for ANYBODY'S standards...
The word "clear" does NOT apply to those pix !!!

I wasted my time downloading those pix , unzipping them & viewing EACH BLURRY MESS !!!!
JEEESSSH !!!!

Later....Ron.M.......
Veteran & Retired TV technician

(This post was edited by Ron.M on Oct 12, 2013, 10:07 PM)

Goofy
New User

Oct 12, 2013, 10:47 PM

Post #41 of 44 (1323 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

I'm sorry...

Pirate

Goofy
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Oct 19, 2013, 2:33 AM

Post #42 of 44 (1311 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

Ron.M
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Oct 19, 2013, 7:11 PM

Post #43 of 44 (1304 views)
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Re: [Goofy] 20PT633R01 slanted picture [In reply to]	Can't Post

Goofy;...

GREAT PIX !!!!....

THANK YOU VERY MUCH!!!...

...

I have altered your pix below;....

The part that has the copper wiring showing is called the "yoke"...
The blueish arrow points to plastic tabs that hold the yoke in place...
Get a Sharpie or similar marker & put a line on the tab to the CRT neck....
Do that to 1 or 2 of the other tabs also...
Those lines will give you a starting point in case of a snafu...
The red arrow points to a clamp that locks the yoke in place...
Loosen that clamp up...
Try to see if the yoke will turn freely to the left & right..
IF it does not , get a flat blade screwdriver (About 1/4") & pry ALL the tabs up...
Use care as those tabs are old & can be very fragile...
Do NOT break them...
The green arrow points to the HV wire that has 30,000 volts on it when the TV is on...
Try to move that wire off to the side & outta the way....
Put the yoke back to the starting point & tighten up the yoke clamp so that the yoke is snug enough to stay in place but you can still move it...
Turn the TV on..
Note where the slant is...
You can do the next step with the TV on OR off...
Your call...
IF you do it with the TV on , use extreme care to stay away from the red wire , the bare connections on the blue part of the yoke & the copper wiring on the yoke...
You can safely grab the white plastic collar at the front of the yoke to turn it..
IF the pix is slanted down on the right side (IF memory serves) turn the yoke SLIGHTLY clockwise (Looking from the back of the TV) & see if the pix is leveled out....
If not turn it a smidge more...
When the pix is level , tighten the clamp..
Do NOT overtighten the clamp..
You can snap the CRT neck off if you do...
IF you decide to do it with the TV off , just turn the yoke as stated above with the TV off & then turn it on to see the result..
Make sure that the yoke is ALL the way toward the front of the CRT during the adjustment & tightening the clamp...

Have fun....

Later..Ron.M... Cool

Veteran & Retired TV technician

Goofy
New User

Oct 24, 2013, 10:49 PM

Post #44 of 44 (1280 views)
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Re: [Ron.M] 20PT633R01 slanted picture [In reply to]	Can't Post

I finally got it... took a long time because the amount of yoke movement needed was less than 1mm and I was turning it off and letting it discharge between attempts.

It fixed the slanting but not the left edge but I guess I have to live with it. Not a big deal.

Thanks for your help Ron, jts and tonito.

Crazy

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