Question about Hitachi 43FDX20B 43" Rear Projection Television

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Resisters questions I have the same tv model and same problem. I think I understand the IC replacement issue (I've found a 2-pack for $22 on-line...do I need to replace 2?) but I'm not sure about the resisters. You mentioned one would need the location numbers and to research the value of the burnt resisters. How do I locate these...where do I look....what do I do from here? Thanks!

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Its best to replace both IC's. As far as the resistors, there are location #'s marked on the board where the resistors are mounted. If any look burnt, get the location numbers off the board, and your model # and email me @ halselectronics@comcast.net. I will get you the resistor values.

Posted on Aug 12, 2008

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SAMSUNG 61HL617 TV COME AND LATER ON IN SCREEN COMING LINE CROSSING BUT STILL LOOKING PICTURE


This is 1 of 2 problems. 1; Convergence(depending on the model of the TV, the convergence ic's will have cold solder joints) 2: vertical ic issues.

If they are different colored lines & the picture also bends, it's a convergence problem. Else suspect a vertical problem. In the case of vertical issues, most of the time it's a defective capacitor (or cold solder joints.).

If it's the 3-crt kind of big screen, it's possible for one of the tubes to be going bad.

It would be best to contact a pro to take a look on your TV and replace the defective components. This should not cost you too much.

Good luck!

Feb 19, 2010 | Projection Televisions

2 Answers

My Mitsubishi ws-65809 will not power on and gives error code 22


Your symptom sounds like at least one damaged convergence IC.

On Mitsubishi's you can sometimes rework the solder connections on each of these IC’s, although, if the convergence does not fix itself from time to time, you most likely do not have a bad solder connection. You will have a faulty IC. Since you now have an error code of 22 (which indicates a short on one of the power supply lines) I recommend replacing them both at the same time because the chips legs can fall off due to the heat of the IC. If you have a good low wattage soldering iron ~ 45W (available at radio shack) you can perform the repair yourself, and this will most likely take care of the entire issue.


I like to remove the board that the IC’s are on so that I can unsolder the connections and clean then up using solder wick (this is also available from radio shack). Removing the board is not a real issue as the connectors are all labeled with an alpha number, so that you can connect them back real easy. There are three in the middle towards the front that I like to mark with a sharpie as they are the red green and blue convergence coil connections (they are all the same size in a row). Just mark them with slashes, like I, II, III, or something like that. If you mix them up it is not a big issue, you can test swapping them around until the picture lines up.

Please be sure to remove the entire white heat sink compound on the heat sink and apply an even coating over the back of the new IC’s. You should also bolt them down before you solder them in so that you have them at the correct height.

There are two very large IC’s that control the convergence in a big screen set. They are secured to a very large aluminum heat sink. I think that the IC numbers will be IC8001, 80002.


The IC’s are large and black, you cannot miss them. They will usually have an STKXXX-XXX number on them.

This repair from a good technician will normally run from $250.00 - $300.00, and sometimes more depending on your area.

There are several schools of thought on the replacement of parts and I firmly believe that you get what you pay for, so don’t buy the cheapest IC’s that you can find. One company I worked for tried this and it only caused more work for the technicians, as we had to replace them with the more expensive ones in the end. I would think that you should be able to find these for around $60.00 each. If you can find the exact Hitachi part, or Sanyo, even though the numbers on the front are the same, and they look exactly like the $10.00 ones, they are better and more reliable.

I usually order my parts from Andrews Electronics in
California, they will have the OEM components that you will need.
Their site is http://www.andrewselectronics.com/welcome.aspx
And their phone number is a 24-Hour Order Desk: (800) 274-4666
I recommend the phone order so you can talk to the person about the different types of IC’s that are available.

You can also try http://www.tvrepairkits.com/ , I have not tried them yet, but they do carry OEM or better parts.

I hope this information allows you to resolve this issue.
If I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up)
Please Note: If you can not rate this post with the highest rating, then please do not leave any rating. I am doing this for free and I do not think that any rating other that the best is needed.
If you need further assistance please comment to this post and I will try to help you further.

Jul 23, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Red green and blue arched horizontal lines on the tv


Hi, you`ve got a bad convergence circuit, involves un-soldering either 2 or 3 large IC`s (you didn`t post a model number) possibly 2-3 burnt resistors and possibly a chemical fuse. A lot of times it`s just the 2 or 3 IC`s, definitely worth fixing (I personally own a 53" Hitachi) If you try this yourself be sure you get original IC`s for the set, theres a lot of bogus chinese IC`s on the internet, acme-sales.net in Orlando Fl. is where I get mine, gl, video-tek

Jul 03, 2009 | Hitachi Projection Televisions

1 Answer

IC Convergence


replace the convergence drive IC and associated resisters or fuses

Dec 18, 2008 | Projection Televisions

1 Answer

Picture flickers in and out rapidly,gets blurry for about 5sec then looks like new for about 5sec then back again


Did you replaced 2 IC convergence as well or just 2 resitors 3.9 ohms ? if you did replaced 2 IC then you might have probelm in convergence drive it is1 of the PCB mount vertical on the left side from the rear view under part BP95-00415C you need to readjust the convergence by using your remote control just follow in the servive manual

Nov 22, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Hitachi 46F500 46 in. is still bad


if you found the burnt resisters after you replaced the ic you probably burnt the ic out again,

Jan 24, 2008 | Hitachi 46F500 46" Rear Projection...

1 Answer

65 in JVC with a possible convergence mis-alignment


2 Convergance ic and have to check resisters · http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
· http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 20, 2007 | JVC AV-56WP30 56" Rear Projection...

2 Answers

Sony HDTV Convergence Issue


No, You will not solve the problem with only changing the convergence IC, associated resisters may also be required.
Beside of that, after spending time to get parts and replace the ICs, you need to make and adjustment the color lines (about 14 lines)
This adjustment without experience will take you about 3 to 4 times and 4 hours each to get thing right (if you areskillfull, most of people failed this adjustment).. The total time spend for this problem would take you full 24 working hours.
I successfully adjusted one set of my big TV (95%, need more more round)), on another set one I failed.

Nov 30, 2007 | Projection Televisions

1 Answer

Samsung HCN473WX


you may need to do convergence to align the colors up.
the only thing other than the ic that need to be replaced are resisters and if the resisters are bad you would not be able to move one of the colors, and blow out the ic you just installed.

Nov 04, 2007 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Help with a convergence problem


Check power supply for blown pico fuses, soldered in ,use
your ohmmeter...............T.

Oct 07, 2007 | Mitsubishi WT-46805 46" Rear Projection...

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