Philips Magnavox 51MP392H Rear Projection Television Logo

Related Topics:

Question about Philips Magnavox 51MP392H Rear Projection Television

1 Answer

Blue Convergance Problem?

Okay this is the porblem. Set it about 3 yr.s old, turned it on the other night and there was blue shadows on the screen. Tried to adjust the convergance manually, but the little plus's would not move. The red one would. Anyway it sounded exactly like a problem posted by Cfgusmer1. So I tried the solution posted by leslake. I replaced the IC's. I ordered 2 of the STK392-110's. But when I got the set apart I discovered my set had 2 STK392-120's. I went ahead and replaced them with the 110's. I was very careful not to damage anything else and tagged all the connectors during removal. So I put it back together and fired it up. I got a faint picture that turned to bluish green and then went out completely after about 4 seconds. Does this everytime I power it up. Sometimes though I don't get the faint picture, just the colors sometimes with squiggly lines. I guess what I would like to know is can you use 110's instead of 120's? Because I don't know if its the wrong parts or maybe I didn't get something hooked back up correctly. Anyway now I can't watch the set at all. Would appreciate any advice.

Posted by havo on

Ad

1 Answer

Robert Johnson

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 395 Answers

Stk392-110 and the 120's are similar but the the 120's handle a higher current so when you replaced them with the lesser the amps not only blew again but the resistors that support the power handling also opened. this is a repair that a tech should handle.

Posted on Sep 22, 2007

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Red and blue shadows on my sony wega

hello it sound like convergance chips might be the trouble

shaun
4helpful
2answers

Blue and red overlap shadowing

convergence ic's are your culprit. they are responsible for aligning the 3 colors your tv projects onto your screen..
0helpful
1answer

I have a red and blue shadow in my picture

i think you need a new convergence board they rin from about 88.00 to about 140.00
0helpful
1answer

I have a red and blue shadow in my picture

IT sounds like it needs to be degaused.
Before checking this, check for speakers placed by the set. this will cause it too.

The best way to avoid this situation is
  1. Don't place unshielded speakers near the set.
  2. Don't move the set while it is turned on.

The coil that is used is about $50 and can sometimes be found at industrial electronics stores. It's called a degausing coil. most TVs have a version of this built in and mutiple power on/off/ons may fix it, but don't hold your breath...

The trick is to turn the coil on with it right up to the screen. Move the coil in a big circular motion parallel to the screen as you S-L-O-W-L-Y move away from the screen. when you are as far away as you can get [about ten feet] turn the coil off. Caution. KEEP HARD DRIVES, CREDIT CARDS, AND FLOPPY DRIVES AWAY from the energized coil!

Good luck

Ken
0helpful
1answer

Can't adjust blue lines on grid for convergance

I would take a look at the entire circuit board the STK chips are sitting on... I have the same problem with a sony KP-57wv700 and it turned out to be the high voltage controller for the crts got fried... part # BA9759F and it can not be replaced as the entire circuitry around it got toasted also... I just ordered entire circuit board. mine was the D board in this case...

BTW, did you check or replace the pico fuses? 3 orange ones on each STK circuitry. Check their resistance with an ohm gage should show continuity. My case they were 3.15 A each...
0helpful
1answer

Toshiba 50H82 blue arcing?

color shadows on numbers or letters indicate a possible convergence problem.. might be a crt deflection problem.
0helpful
1answer

Hit 53UWX10BA

convergance ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
0helpful
1answer

Jvc av56wp74 blue shadow

my suggestion would be...to replace the focus block..john
0helpful
1answer

Jvc av56pw74 blue shadow

You are going to need a full convergance alignment to rectify this issue.
Not finding what you are looking for?

66 views

Ask a Question

Usually answered in minutes!

Top Philips Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76843 Answers

Cindy Wells

Level 3 Expert

6477 Answers

 Francisco Mauricio...
Francisco Mauricio...

Level 3 Expert

1551 Answers

Are you a Philips Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...