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 on

Ad

1 Answer

  • 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

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Red and blue shadows on my sony wega


hello it sound like convergance chips might be the trouble

shaun

Mar 23, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

2 Answers

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..

Mar 15, 2009 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

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

Sep 08, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

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

Aug 15, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

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...

Jan 14, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Toshiba 50H82 blue arcing?


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

Dec 18, 2007 | Toshiba 50H82 50" Rear Projection...

1 Answer

Hit 53UWX10BA


convergance ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

Dec 14, 2007 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

Jvc av56wp74 blue shadow


my suggestion would be...to replace the focus block..john

Aug 10, 2007 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Jvc av56pw74 blue shadow


You are going to need a full convergance alignment to rectify this issue.

Aug 09, 2007 | JVC AV-27720 27" TV

Not finding what you are looking for?
Philips Magnavox 51MP392H Rear Projection Television Logo

Related Topics:

59 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75157 Answers

matt martin
matt martin

Level 3 Expert

1213 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

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

Answer questions

Manuals & User Guides

Loading...