RCA 32V432T Possibly Bad Fly-Back Transformer?

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Oh yeah you're on the right track.

Are you sure the TV is getting a 4:3 signal? That looks like a 16:9 image, and I don't see squashing.

As for the crooked screen, that lies in the yoke position, and with it being an RCA, the yoke is likely bonded to the CRT.

Good call on the 4:3, I thought that was it at first. It's not though. A new discovery though. When I hit guide on the cable box, the screen on the RCA is full screen. When I exit it, it's back to missing the 2 inches at the top and the 2 inches at the bottom. We have the cable box plugged into our main television set, which is a plasma HD 50" wide screen. It's plugged in via HDMI cable. On the RCA, we plug RCA cables from the back of the cable box into the RCA TV. I switched the settings on the cable box to 4:3 and I set it to normal, not stretched, and I set it to standard def, not Auto HD.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

I think it's fixed. On the cable box, if it's on a channel that's displayed in 480i, it shows full screen. If it's a channel that shows 1080i, it's squished. I think we got this one guys! I'm going to start putting it back together I do believe, and I will be giving it to my mother. Thank you so much, I'm sure she'll have me thank you guys as well. I could not of done it without you guys! Thanks.

[Mrx3750]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Oh yeah it's fixed. If you get *any* display at full screen, the vertical's doing its thing just fine.

Only other thing I'd do is run the TV for a few hours just to make sure everything behaves itself.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

You guys freaking rock!!!!!!!!!!! I'm trying to adjust the settings now, like brightness and colour but I'm not very good at it. I got a friend trying to match it to the picture on the Plasma. Isn't working very good though.

With Plasmas, someone told me you need to get them charged every so many years. Is that true? Our black isn't working right. When I had the computer hooked up to it on the HDMI 3 port (the one for the computer), and I had a black box up on the screen, part of it was gray, part was black...

[Mrx3750]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

To properly adjust the RCA TV, you're going to need a DVD player and a test pattern DVD. You *will not* get it looking as good as your plasma. It's just not built for that. However if you must play with the settings to get the best image you can out of it, see about downloading a test pattern DVD ISO.

This should work for you.
http://techpreservation.dyndns.org/dvddl/testdisc.htm

Also should be good for calibrating HD displays should you feel the need to. For your RCA, I'd just worry about making sure it displays red, green, and blue uniformly, and check the grayscale. (find the pattern that shows many shades of gray and adjust brightness/contrast until you can see them all, and the color black looks, well, black.)

This image is the grayscale test pattern: http://techpreservation.dyndns.org/B...DEO_CTP3_7.jpg

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

... This should work for you.
http://techpreservation.dyndns.org/dvddl/testdisc.htm

Also should be good for calibrating HD displays should you feel the need to. For your RCA, I'd just worry about making sure it displays red, green, and blue uniformly, and check the grayscale. (find the pattern that shows many shades of gray and adjust brightness/contrast until you can see them all, and the color black looks, well, black.)

This image is the grayscale test pattern: http://techpreservation.dyndns.org/B...DEO_CTP3_7.jpg

Thank you for the link, however, I cannot play that in my DVD player. Nor can I play it on the computer. It's a different region and my DVD player is not hacked. It's not a region-free DVD player either. It's locked to our region, region 1 (USA). Any suggestions?

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Actually, I got a couple ideas. I'm real good at computers. I burned it on CD. Gonna try burning it on DVD and if it doesn't work, I'll just rip it and burn a region free copy. It's been a long day and I'm kind of tired, not thinking right. Thanks for the links!

[Mrx3750]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Should work, but it has to be burned to a DVD.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Should work, but it has to be burned to a DVD.

Yeah, when I burned it on DVD it worked. Any idea what TINT means on the TV menu? It's hard for me to use the colour ones because I don't really have anything to compare the blue's and green's and red's too. I tried using the computer and when I thought it was matched up, colour was all the way up to 100. When I flipped it to a TV channel, it was terrible looking.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

I almost got it but the white isn't bright enough and orange looks too red.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

I think I got the colour fixed. It just doesn't have that glow like the plasma has. Is that because it's a CRT? Like the white not being bright white like it is on the plasma?

[Mrx3750]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

First off comparing it to Plasma is not a good idea, because they're two different beasts and they work very differently.

Really you would compare it to a known working CRT display, but even then as CRT's vary so widely even among the same brand, you won't get perfect matching displays.

Step 1 is to factory reset the TV (should be a menu option)

Step 2 is to load the grayscale image and see if you can pick out all the color shades, including the stripes in the middle. Adjust brightness and contrast until you can while making sure that black is still black.

Step 3 is to display the pure red, pure green, and pure blue. The colors won't look like they do on your plasma, but as long as they look red, green, and blue this means your color guns are doing their thing.

Next there should be color images somewhere on that DVD. Just make sure they look roughly like the example images do on the website (colors match more or less. It doesn't have to be perfect and you will drive yourself insane if you try to make it perfect)

Now you're likely going to see imperfections in the image. It may be bowed slightly, or the corners might be a bit "fuzzy" while the center of the image is clear. This is normal, and I find that most people don't give a flip about minor distortions or imperfections so long as the thing displays a picture.

[tom66]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

With Plasmas, someone told me you need to get them charged every so many years. Is that true? Our black isn't working right. When I had the computer hooked up to it on the HDMI 3 port (the one for the computer), and I had a black box up on the screen, part of it was gray, part was black...

Complete bullshit, not a lick of truth... you never have to "charge up" a plasma display. If the black level isn't great, you may get a better picture by tweaking the priming voltages and timings, which can be done by opening the set.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

First off comparing it to Plasma is not a good idea, because they're two different beasts and they work very differently.

Really you would compare it to a known working CRT display, but even then as CRT's vary so widely even among the same brand, you won't get perfect matching displays.

Step 1 is to factory reset the TV (should be a menu option)

Step 2 is to load the grayscale image and see if you can pick out all the color shades, including the stripes in the middle. Adjust brightness and contrast until you can while making sure that black is still black.

Step 3 is to display the pure red, pure green, and pure blue. The colors won't look like they do on your plasma, but as long as they look red, green, and blue this means your color guns are doing their thing.

Next there should be color images somewhere on that DVD. Just make sure they look roughly like the example images do on the website (colors match more or less. It doesn't have to be perfect and you will drive yourself insane if you try to make it perfect)

Now you're likely going to see imperfections in the image. It may be bowed slightly, or the corners might be a bit "fuzzy" while the center of the image is clear. This is normal, and I find that most people don't give a flip about minor distortions or imperfections so long as the thing displays a picture.

Okay, I've done what you said and you were right about the fuzziness. My mother loves the TV and says the colours a lot better than the old one. So I think I was successful in changing the settings. Thank you so much for explaining that. And thanks for the help.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Complete bullshit, not a lick of truth... you never have to "charge up" a plasma display. If the black level isn't great, you may get a better picture by tweaking the priming voltages and timings, which can be done by opening the set.

Thank you so much! He was the guy that told me the flyback was bad. Turns out it was just a couple caps and a bad diode. When I get some time, I'll look into tweaking the priming voltages and timings. I'm working on her old set now. It has no on screen display. I'm trying to find the service manual. It's a CT-36D30B. I had a couple a while ago but lost it. I'm going to try fixing this one with little to no help. I'm going to see if I've learned anything. I have a feeling it's a bad IC. I'll check the voltages once I get the service manual again. Wish me luck!

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

I found a site where I can buy it for 16$ and download it. Do you guys think it's worth it?

[tom66]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Nope. Lemme see if I still have access to Panasonic's service site in China, I may be able to get you it. If it was released in China or Taiwan.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Nope. Lemme see if I still have access to Panasonic's service site in China, I may be able to get you it. If it was released in China or Taiwan.

Thank you, I created a new thread for this because I thought it'd give me better results.

[tom66]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Unfortunately it's no longer available. I can ask a friend of mine if he has access to it, but he probably doesn't because it's an older CRT.

[Spork Schivago]

Re: RCA 32V432T Possibly Bad Fly-Back Transformer?

Well thank you for trying. I don't know how much good I can do without the service manual but maybe I'll take a peek and see what I can see.