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RCA D52W23 default geometry settings

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Old 02-18-2012, 05:00 PM   #1
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Default RCA D52W23 default geometry settings

Hi,

A helpful "friend" got into the service menu and screwed up the geometry settings.

Anyone out there know the default settings?

Thanks
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Old 02-18-2012, 06:54 PM   #2
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Long story short, there are none.

You need to find a service or ISF tech with experience in rebuilding the geometry and convergence of your CRT based display.

It can be done.

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Old 02-18-2012, 07:32 PM   #3
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And how much might that cost?
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Old 02-18-2012, 07:59 PM   #4
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I used to charge $325 in 2004 which included a gray scale calibration and all.

Gads, they used to be fun.

Do you have a service manual for the display?

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Old 02-18-2012, 08:14 PM   #5
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I took a quick check through the old files and have attached some light reading for you. Nope, no can do here, the file is too large.

To re-align the geometry does not require the use of a proprietary device called a "chipper Checker", but it still is a bit of a pain.

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Old 02-19-2012, 12:07 PM   #6
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Quote:
Originally Posted by d6500k View Post
I took a quick check through the old files and have attached some light reading for you. Nope, no can do here, the file is too large.

To re-align the geometry does not require the use of a proprietary device called a "chipper Checker", but it still is a bit of a pain.

Doug k
I'm needing the same things, I was an idiot and wrote down the default settings for my 480 but didn't realize 1080 settings were independent and now I'm needing ATLEAST a general idea of what the defaults may have been. I will make fine tweaks here and there, If you or someone could PLEASE post them up you have no idea how much of a help it would be, Even if it may not help us much at all, it would still give me some peace of mind. If you need a place to upload them I will be happy to set that up for you.
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Old 02-19-2012, 12:35 PM   #7
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Send me an email through my website.

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Old 02-19-2012, 01:32 PM   #8
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Send me an email through my website.

Doug k

Thanks for the quick reply, I actually just got done figuring out my own problem. I went to MISC and used the "Clear programming data" and "Restore Factory Defaults" had to hold both for two seconds, TV restarted and all my settings are back to greatness =) EVERYONE, and I mean EVERYONE told me that it wasn't possible once you saved those changes to go back and undo them.

On a side note, Why does auto convergence just display a red screen and not do anything but throw my convergence off when I attempt to run it? (convergence board going bad?) I have to manually convergence everything through the field service menu which gets the job done quiet well, although painstakingly.

Also my 1080i grid when converging in the top right and bottom left are every so SLIGHTLY bowed, Its not even noticeable when using the TV, it just makes converging the corners exact almost impossible, Is that a problem due to the board or just a field menu setting I need to tweak?

Last edited by ps2player4u; 02-19-2012 at 01:33 PM. Reason: Typos
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Old 02-19-2012, 02:50 PM   #9
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"Clear programming data" and "Restore Factory Defaults" had to hold both for two seconds, TV restarted and all my settings are back to greatness
Outstanding! So in effect it returned your 480 I to the defaults of the 1080 I, that you had not adjusted? Or visa/versa?

In service, adjust the green gun as perfectly as you can in the geometry section....carefully! There should be entries with names like Pin, Bow, EWTR (right corner) EWTL (left corner) etc. Take a picture of all parameter settings or write them all down as changes made in geometry MAY not be recoverable like you found with the convergence protocol. Once the green rectangle has as square corners and straight lines while still remaining inside the visible raster, overlay the red and then blue rasters. This will greatly enhance ease of convergence which is your next step.

FYI and this is a big FYI... we ISF techs rarely (for myself never) had a call to calibrate an RCA RPTV. The main reason was the initial cost of the display usually meant that the customer was very cost conscious. Also, the displays were very difficult to calibrate with regards to gray scale in that the controls were so notchy, one point move made huge changes in each of the primary colors.

Very glad you found the reset.... I really did not know that it was available. I've a hunch that if you had changed settings in both 480 and 1080, the display would have chosen one or either and defaulted to it. Perhaps you could write up the exact protocol to follow for other owners of the same display and post it here.

Great Job in any event. Every day we can all learn something new.

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Old 02-19-2012, 03:49 PM   #10
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Outstanding! So in effect it returned your 480 I to the defaults of the 1080 I, that you had not adjusted? Or visa/versa?

In service, adjust the green gun as perfectly as you can in the geometry section....carefully! There should be entries with names like Pin, Bow, EWTR (right corner) EWTL (left corner) etc. Take a picture of all parameter settings or write them all down as changes made in geometry MAY not be recoverable like you found with the convergence protocol. Once the green rectangle has as square corners and straight lines while still remaining inside the visible raster, overlay the red and then blue rasters. This will greatly enhance ease of convergence which is your next step.

FYI and this is a big FYI... we ISF techs rarely (for myself never) had a call to calibrate an RCA RPTV. The main reason was the initial cost of the display usually meant that the customer was very cost conscious. Also, the displays were very difficult to calibrate with regards to gray scale in that the controls were so notchy, one point move made huge changes in each of the primary colors.

Very glad you found the reset.... I really did not know that it was available. I've a hunch that if you had changed settings in both 480 and 1080, the display would have chosen one or either and defaulted to it. Perhaps you could write up the exact protocol to follow for other owners of the same display and post it here.

Great Job in any event. Every day we can all learn something new.

Doug k

I'm not entirely sure if it changed my 480p settings when I defaulted them or not, but I can happily say that it reset all my 1080I settings, Which was the one I needed the defaults for =)

So too the OP, Make sure your signal Input matches what service menu defaults you're looking for. 480p, 720, or 1080, and then load the service menu, go down to MISCELLANEOUS, On the next menu you will see Clear Programmed Defaults, Hold Vol + on this setting for 2 seconds, until your TV blinks off and on. Now if your TV changed the selected input your using, Just go back to whatever channnel or input you had it on, And now go down to "Restore Factory Defaults or settings" can't remember the exact name, And again, hold over for 2 seconds.

WAALAA You're default values have returned!! =D


And Doug, Would you happen to have any idea why auto convergence won't work on my TV anymore? It just randomly decided to quit working and just display a red screen for like 3 seconds when I use it.

Also when you say adjust the green gun, Are you refereeing too the a green grid you can adjust inside the service menu's manual convergence options? If so I don't have a green grid, It lets me adjust the blue grid, the red grid and a white grid which I haven't touched on the 21x21 Level 3 convergence adjustment

Another quick question.

From a cold start my TV is EXTREMELY, and I'm talking EXTREMELY blurry, Like unreadable blurry, Until about 15 minutes when it finally focuses itself. Is this normal?

And thank you very much for your help on this!
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Old 02-19-2012, 04:07 PM   #11
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Last question first... CRT's should be completely warmed up before attempting any convergence touch up. I always used at least thirty minutes.

An "auto convergence" system sometimes is best described as a crap shoot. Do your work in service or "manual convergence" in user setup for the best results.

In service there should be two separate geometry/convergence areas. Since I do not have the service manual, look for "coarse" or similar and "fine". The "coarse" will be the area where on most CRT's, you actually adjust the raster which is where the electron gun draws horizontal lines, which make up the picture. Adjusting this raster to a perfect rectangle, or as close as you can get to one, is ideal. Most displays use the green CRT or gun since it is the center CRT of the three that make up your color picture. There should be some way to get to these coarse controls. If you do have a Service Manual for your display and are having trouble finding what I'm describing, send me a copy (pdf) and I'll see if I can help find the page with the instructions. I know.... they read like greek interpreted by a german and finished in the original japanese.


One other point. If you at any time see the convergence grid appear to "fold" back upon itself...back the control off immediately. Doing so will reduce the strain on what are now aged convergence IC's and when they snap, it is game on with a soldering iron.

Again, I applaud your finding the reset!

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Old 02-19-2012, 04:46 PM   #12
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http://tv.manualsonline.com/support/...-guide-3096038

Found the manual above. You may have to register to download the pdf.

Read section 6 "VI".

I would not recommend the manual adjustment of the yokes. Tricky.

It should be that use of digital manual convergence does the job. If not, plan on spending some up close and personal time with your TV.

I did find the reset "VI page 11. Read the convergence submenu completely. Have fun!

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Old 02-19-2012, 05:01 PM   #13
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Thanks for the find good sir!
I'm already confused though, What does it mean by this
" Turn the instrument ON and place in the Field
Service Mode. Tune to recieve a crosshatch
pattern. Enter the Geometry submenu. Using a
Monoscope pattern"

What does tune to recieve a crosshatch pattern and using a monoscope pattern mean?
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Old 02-19-2012, 07:55 PM   #14
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I got into the Riviera tourney.... killer finish.

Sent you a pm back.

No sence confudsing the gp..... more wine.

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