Question about Panasonic PT-53TW53 53" Rear Projection HDTV-Ready Television

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Power out I replaced 2 STK392110's to fix a convergence problem, but may have fried my board in the process. The set powers up and stays on for about 5 min. The red starts creeping in on the left side of the screen then power shuts off. I think I need a new D-board but can't find one anywhere, does anyone have the schematic for the D-board?

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  • 2am steve Mar 05, 2008

    Hey bobbyj

    What do the convergance yolks look like? do they have a number? 4 wires orange & purple?

    Thanks

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Try this, unplug the convergance yolks on the D board. power the unit then go to the convergance menu and reset to default. power down the unit and plug the yolks back in. now try it again.

Posted on Mar 02, 2008

  • Robert Johnson Mar 05, 2008

    yes, the four wire connectors(thin wires) one for each of the yolks. do not remove the four wire red,blue,orange,brown. they are the main deflection yolk (thick wires). the convergance yolk connectors are the ones closest to the convergance amps.

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Tv screen black, makes a chirping noise


This tv problem are also part the tv Convergence board problems too.The tv convergence board are toally dead have no power voltages activity to the tv convergence board at all.That why u only have chirping sound only.If ur tv convergence board that have some power voltages activity left and have dying parts on the tv Convergence board only.Tv will have picture but have problems R,G,B colors lines mis alignments,have colors shadows pictures or 3D pictures only.The tv convergence board must be repair like replaced 2 STK convergence ICS and some or all it resitors too.Will fix the tv convergence board will fixed the DLP tvs with chirping noises too.The tvs shops will cost u like $300-$350 for parts and labors to fixed the tv convergence board.

Aug 23, 2011 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

Tip

61H70 Common Problems According To Local Repair Shop


No Startup = Check Q404 (2SC5570) and pico fuse F470 (2A)

Dead = Check Q801 (strz4369, 23135015) or replace QA02

Intermittent Reset = Add cotton tape and capacitor (0.47uf) across pin 54 of QA01 and GND (CA61 GND side)

Dead Relay Clicks = Replace zener D878 (9.1V)

HOT Fails Often = Replace C403 (22uf/100V)

Picture Fades Comes Back Blurry = Replace Q510 and Q221

When environment temperature rises above 95 grade F, television goes out of convergence and vertical slowly rises from bottom of screen = Connect capacitor (10pF/50V) between R4013 (Q421 collector) and R4012 (Q421 base). Add insulation tape underneath capacitor as necessary.

Intermittently no blue colour. Distorted lines in picture = Replace Q751 (STK392110)

Rolling picture. No convergence. Red foldover = Replace Q751 (STK392110) and R7726 (1.2R)

No picture. Audio and OSD OK = Check R243 and R244 (22K/0.16W)

Q510 replacement = 2 IC types have been alternately used as Q510.a) TA1316Nb) TA1316AN...The 2 types are not interchangable. When replacement of Q510 is necessary, the original type must be used. Do not use part number listed in the service manual. Use part numbers listed. Q510, type IC: TA1316N - Use P/N: 23000358 Q510, Type IC: TA1316An - Use P/N: 23000584

Dead & Power LED flashes = Check fuse F860 (4A) for O/C, Q801 (STR-Z4369), D862 (NTE552). Also check zener diodes D873 (27V), D875 (9.1V), D877 (27V) and D878 (9.1V).

Hope this helps...Unless you know exactly what is going wrong, sending the chassis to http://www.ptscorp.com would be my advice.

on Jan 22, 2008 | Toshiba 61H70 61" Rear Projection...

1 Answer

R56wh78 im having a problem.. the tv started the 3d effect so i replaced the convergence board.. and fixed the problem for about 2 days (convergence is still good).. now im having a new problem.. the tv...


The Deflection Power board is the the most likeliest cause of the dead set issue, and that could have also caused the prior issue of convergence board since the deflection board supplies all base voltages for the convergence circuits

Aug 16, 2011 | RCA Projection Televisions

1 Answer

My 42" inch fried something


Ur tv still have picture,just have convergence problems wright?This tv is fixable,the tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.Replaced all these parts on the tv convergence board,will solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Dec 16, 2010 | Mitsubishi WT-42311 42" Rear Projection...

1 Answer

3 blinking power button lights RCA R52WH77


have you tried checking some voltages in the convergence board it could be the damage is there and not the deflection board since the 320vdc was connected thru the yoke. you can also try to deactivate the convergence board to see if the tv set will remain on this will give you a better idea of where the problem is. good luck!

Aug 13, 2009 | Projection Televisions

1 Answer

Problem after replacing convergence board


Yes, you do need to set up the convergence in order to get the picture geometry correct. the antenna and maybe some other settings will need to be restored through the appropriate user interface screens. You will need your owners manual for a guide.

Jul 12, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Power Light blinking 5 times


check the resistors near the
stk's. There are some reports that they get fried when the stk's fry....or the other way around. The resistor ratings are labeled on the resistors. 2.2, 82, 180 or something like that. Also check the board as you turn on the tv. See if any glow red.

Sep 22, 2008 | Panasonic PT-47WX53 47" Rear Projection...

2 Answers

Mitsubishi WT-42313 TV


I found the schematic (downloadable PDF) for $7.99 at http://www.completeservicemanuals.com. Cheapest I found and highly recommended.
The blown fuse was due to a fried convergence IC. There are two of these on the high voltage board; they should be replaced together as a matched set. The bad one had gotten so hot I only had to unsolder three pins -- the rest were already loose!
I found the ICs at http://www.electronic-repair-kits.com, also highly recommended. The correct part for the WT-42313 is STK394-250. Make sure you order a pair and they will send you a matched set.
My set is now operating; I just need to clean the optics and do a convergence alignment.

Sep 01, 2008 | Mitsubishi WT-42313 42" Rear Projection...

1 Answer

Pt5598 rplaced convergence board no luck.


If the picture is still bowed, the power supply fuses are open.
Check the power supply on the red connector for + and - 20 volts.

The fuses are on the main board,are on the deflection module in the middle, tward the front of the TV. They should look like green (or brown) resistors. An ohmmeter check will show which ones are bad.
They should be 3.5 amps. Replace with 4 ohm GMA fuses with pigtails if you can't find picofuses. I also had a set that would fry the 1 ohm resistor on the 20 v supply. This was near the fuses.
I replaced the whole module to fix that.

I hope this helps. Lee, www.crazycomputers.com



May 31, 2008 | Akai PT5598HD 55" Rear Projection...

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