Mulja tv repair portal

Equipment Repairs => CRT TV forum => Topic started by: nitrogen_widget on February 08, 2010,15:25:44

Title: RCA D52W14 rear projection blue blotches, streaks & halo in picture
Post by: nitrogen_widget on February 08, 2010,15:25:44

I picked up an RCA D52W14 for free.
It was dead. Just a blinking power light when you turned it on.
Did some research & found a few buldging capacitors on the power board & replaced those.

Now it powers up just fine.

But when there is random blue blothes & streaks in the picture.
Also I can see a blue halo & whites sometimes cause ghosts.

Otherwise the picture is decent.

Any ideas?

Thank you.

Title: Re: RCA D52W14 rear projection blue blotches, streaks & halo in picture
Post by: Turnip on February 11, 2010,11:09:26

Hi Widget,

Is the set tubed ?

Chris.

Title: Re: RCA D52W14 rear projection blue blotches, streaks & halo in picture
Post by: nitrogen_widget on February 11, 2010,18:22:59

yes.
Here are some pics of the problem.
I've been told the blue focus is off but not sure how to adjust it.
(http://i56.photobucket.com/albums/g193/vendetta666_2006/0207001959.jpg)
(http://i56.photobucket.com/albums/g193/vendetta666_2006/0207002010.jpg)

Title: Re: RCA D52W14 rear projection blue blotches, streaks & halo in picture
Post by: nitrogen_widget on February 13, 2010,21:24:58

Ok. got into the test menu & pulled up the convergence grids & the blue is WAY out of whack.
No focus at all.
Barely hitting the screen and that is just a blur.
Grid is focused on mirror but warped & I see "stuff" on the blue tube.

I'm thinking the coolant needs replacing?

Title: Re: RCA D52W14 rear projection blue blotches, streaks & halo in picture
Post by: Turnip on February 14, 2010,12:09:13

Hi,

No expert myself, but suspect all coolants might be in the same condition - expect some expert to put us to rights - well with Quuq there's always some expert about.

Not on commission, sadly  - Chris.