Question about Mitsubishi WT-46809 46" Rear Projection Television

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Mitsubishi wt-46809 Thanks for commenting on my subject. I did not feel any heat from the 2 convergence ics. Would it be one of the resistors around the convergence ics or do you know where i could start checking? Thanks for any help you can give me. jason_jwt_84

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  • jason_jwt_84 Oct 19, 2008

    Thanks for the info. I will do some testing and see what I can come up with. I will get back in touch to let you know. I really appreciate you helping me out.

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The vertical deflection IC if defective will cause the protection circut not to let the tv power up ,it has a thermal protection circut as well
here is the vertical deflection IC # la78045
and here is a link for the NTE equivalent part and specifications and pin layout
http://www.nteinc.com/specs/7200to7299/pdf/nte7209.pdf WARNING if you heat up any component to long or with to hot of an iron you can dammage the component and or the thermal protection circut
but I believe you will also have to replace the flyback (high voltage transformer ) with wire giving to much voltage

Posted on Oct 15, 2008

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Can not get the colors to convergence


You will need to replace the 2 convergence ics and also check the 12 6.8 ohm resistors since they will usually blow when the ICs fail on a phillips. You can get the convergence repair kit for your phillips from www.tvrepairworld.com which contains the ICs, resistors heat sink paste and the CD with repair instructions.

Jul 10, 2011 | Philips 60PP9202 60" Rear Projection...

1 Answer

I changed my two IC chips and three resistances on my Hitachi TV to fix color alignments. Now the problems is that yellow and blue double image are seen at the bottom of my screen with no much effect on...


Ur tv still have dead resistors parts,test all 12 resistors parts around the 2 STK convergence ICS and changes some more dead resistors parts or changes all 12 resistors parts for sure.If tv still have the same problems after tested and replaces more resistors parts or all 12 resistors parts.Than some how when u handling and replacing the 2 STK convergence ICS and resoldering the 2 STK covergence ICS u short it out the 2 STK convergence ICS by resoldering without proper grounding ur self not to allow for static electricity to kill the 2 STK convergence ICS or u using a soldering iron to high of a wattage for doing soldering ICS work.

Apr 23, 2011 | Hitachi 43FDX01B TV

2 Answers

The tv looks like it is in 3d. when i try to adjust the convergiance the plus signs on the left are bent


do not play with this tv replace the stk ic chips and the resistors around the stk chips ,cant miss em about 2 inches big with heat sinks on them.

Sep 11, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Mitsubishi WT-42413 Red Convergence will not move left right


U check all the resistors with the Ohm Meter?All the resistors u check it in tolerance?Resolders all the resistors,so it make good resistance for the ICS?U do all these steps,u still have problems,Ur ICS some how it shorted it dead,again.

Apr 02, 2010 | Mitsubishi WT-42413 42" Rear Projection...

2 Answers

I have a HCL473W with a 'concave' screen effect on 2 colors??


You don't need to replace the whole board, regardless of which board it may be mounted on. The STK IC convergence chips alone are all that need to be replaced. You can order them from a number of different online sites. You can try Alibaba.com. If you have any more questions, feel free to ask!

Nov 08, 2009 | Samsung HCL473W 47" Rear Projection...

3 Answers

PT53wx53g. green & blue convergence don't respond


You may need to check the two small resistors on the front of the baord as well. They are the power connections to you Convergence IC's, I have seen these charred and open. Just check them with a DVM or an Ohm meter to see what value they read. If they are close to 2 Ohms they most likely will be OK. But the other blue resistors will need to be replaced if they do not measure around 2.2 Ohms.

Please rate both solutions, as we are here to help you with the most information that you can get.

I hope this information allows you to resolve this issue.
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Nov 04, 2009 | Televison & Video

2 Answers

Panasonic PT-47WX49 convergence amplifiers


check R7059 and R7050
check for 2.2 ohm.
if not 2.2ohm replace them.
values are 2.2ohm at 2 watts
also look for bad soldier around all serounding resintors.
.

Jan 15, 2009 | Panasonic PT-47WX49 47" Rear Projection...

3 Answers

RED SHADOW AROUND IMAGES of SONY KP-57WS510 RPCRT


Your set uses two STK392-560 convergence ICs they are attached to a large heat sink on the D board. You can save your self about 400 for a twenty minute repair by getting new ICs at the following link as trhey provide free instalation instructions with pics so you can do the job yourself. It only requires basic soldering skills I would order about six 4.7ohm 1/2 watt resistors as well just in case you need them asusually sonys' will burn one or two of the 4.7ohm convergence resistors when the ICs fail. Heres the link
http://servicemanuals.vstore.ca/

May 18, 2008 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

Re: 43FDX01B blue convergence issues


Ditto CTF1800's comment....Check RP-41 1.5 ohm 2 watt and
other low value resistors near IC's mounted on large heatsinks.

STK392-110 original convergence IC's can be upgraded to
Hitachi # CZ 01341 new number STK394-160E for greater reliability.......Hitachi also has an IC / resistor kit # X480295,
but I don't change good resistors, only the bad one(s).

Practice good visual acuity technique and ask questions!.....T.

Jan 02, 2008 | Hitachi 43FDX01B TV

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