Question about Hitachi 43FDX15B 43" Rear Projection Television

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FIXYA PROBLEM Hello, I had recently posted up a problem about a convergance problem. I ordered the convergance ics and replaced them. I checked all my solder points and verified everything was ok. I checked everything and put it all back together correctly, i even labled all the wires on where they go. I tryed powering on the tv and it powered on for about 2 sec after that it powered off and started blinking red and didnt stop blinking red in the front of the panel. What i also noticed is that in the back of the set on the pwb there were to green lights that are located on that board blinking and making a noise.. also i noticed there was a burn smell on a big black tower looking thing. Any idea whats going on and what you think i should do... If anyone can help me Thank you...

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  • Hitachi Master
  • 8,617 Answers

Usually when your convergence ICs go they take out 1 or 2 resisitors right next to the Ics. The tower your refering to is a capacitor. it should have a rating stamped on it such as 50uf @50 etc. Hope this helps

Posted on Jan 20, 2008

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Hitachi Projection TV that has no picture, there is a clicking sound from inside when tv is on. Taking off the rear panel reveals there is a green blinking light on the board that is blinking. Recently...


palmer_band,

Due to the fact that you recently replaced the convergence ICs I would look at that area. Check all the resistors, diodes and semis for any problems. If none are found use my tip at http://www.fixya.com/support/r6396176-projection_tv_troubleshooting to help troubleshoot your unit.

Thanks for using FixYa and for the great rating.

hardrocko

Jun 07, 2011 | Hitachi 46F500 46" Rear Projection...

1 Answer

I am getting ready to replace the 2 STK392-110 IC for a convergence problem on my Toshiba 43h70. Where would I locate these two ICs so that I can save time trying to find t


Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.

If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. 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.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

You can also try
http://www.tvrepairkits.com/ , they do carry OEM or better parts.


I hope this information allows you to resolve this issue.
I am doing this for free.
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If you need further assistance please comment to this post and I will try to help you further.

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asnowman

Jan 30, 2010 | Toshiba 43H70 43" Rear Projection...

2 Answers

Panasonic pt61hx41e convergence part number


If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. 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.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

You can also try
http://www.tvrepairkits.com/ , they do carry OEM or better parts.


I hope this information allows you to resolve this issue.
If you need further assistance please comment to this post and I will try to help you further.

Thanks for using FixYa
asnowman

Dec 06, 2009 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

Convergance problem on lower half of screen.smeared red and orange double vision,but only on bottom ofscreen.top appears out of focus,but not double visioned.


Howdy,

The TV has a convergence problem; the IC’s for that circuit will need to be replaced. The part(below) Number is from Toshiba, they provide good advice on replacement parts. Make sure what type of IC's your TV uses first. The cost for this repair runs around $450.00 or more.

Replace the defective Convergence Output IC Part Number
23905094 (STK392-110) using the revised “T” version IC Part Number
23135090 (STK392-110T). When Convergence Output failure is
detected, it’s recommended that both IC’s be changed to the “T” type IC
version. Inspect the Convergence Output IC’s for the “T” type version as
shown in Figure 2. Replace the Convergence Output IC’s using the “T”
type version Part Number 23135090 (STK392-110T).

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)
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Thanks for choosing FixYA, Big Irish.

Nov 23, 2009 | Televison & Video

2 Answers

THE RED ON MAGIC FOCUS AND MANUAL CONVERGENCE WILL NOT ADJUST


Your symptoms sounds like a damaged convergence IC.

There are two and large IC’s that control the convergence in a big screen set. They are secured to a very large aluminum heat sink. They will have a part number stamped on them that will start with an STKXXX-XXX, like STK392-110, and they are located on the signal board (on the left as you look into the back of the set).

Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.
There are also two resistors on the front of the board located in the middle that are fusible link resistors, these should be checked for opens and replaced if they are found so.

I would suggest that you contact a service center in your area for a complete diagnosis and repair, as this type of repair can get a little tricky. But if you want to repair the set yourself, just remember to be careful. The capacitors and CRT’s can hold a charge and may shock you.


If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. 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.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

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 cannot 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.

Sep 17, 2009 | JVC AV-65WP74 Rear Projection Television

1 Answer

Red convergence outline


Hello,

I posted this before, however it fits your situation so here are my suggestions:

This is not a bad tube it is a convergence problem. Your convergence amplifiers are malfunctioning, and need to be replaced. If you have a background in electronics, you can remove the back of the TV locate the Convergence ICs (using the schematic or service manual) and the order the parts you will need which are the two convergence ICs and the biasing resistors (you will see these on the schematic). To remove them unsolder the pins, unscrew the screws holding them on the heat sink and remove them carefully, if they stick use a solvent to break down the adhesion of the heat sink paste. Once loose, take them out and then unsolder the biasing resistors and replace them with the ones you ordered along with the ICs.

To install the new ICs put heat sink paste on the back of the ICs and insert the pins into the proper holes in the circuit board. Screw the screws back in securely, and solder the connections back.

After doing this you will need to perform a convergence adjustment, using the cross hair adjustment screen (access this from your TV menu). and the you will need to do an advance adjustment using the crosshatch pattern (also accessed from your TV menu).

Once these are done use you service manual to follow the procedures on locking the adjustments into the TVs memory.

I hope this helps,

Thank you,

Shuttle83

Mar 10, 2009 | JVC AV-56WP74 56" Rear Projection...

2 Answers

We have a mitsubishi model # vs- 60609 television and recently the picture has become distorted at right and left top of screen about 6 - 10 inches in. Is there a simple fix??


Your symptom sounds like a damaged convergence IC.

Maybe not simple, but not that difficult if you have a good 45W soldering iron (Available from Radio Shack) and some basic soldering skills.

There are two and large IC’s that control the convergence in a big screen set. They are secured to a very large aluminum heat sink. They will have a part number stamped on them that will start with an STKXXX-XXX, like STK392-110, and they are located on the signal board (on the left as you look into the back of the set).

Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.
There are also two resistors on the front of the board located in the middle that are fusible link resistors, these should be checked for opens and replaced if they are found so.

I would suggest that you contact a service center in your area for a complete diagnosis and repair, as this type of repair can get a little tricky. But if you want to repair the set yourself, just remember to be careful. The capacitors and CRT’s can hold a charge and may shock you.


If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. 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.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

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 cannot 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.

Dec 01, 2008 | Samsung HCN473W 47" Rear Projection...

3 Answers

Convergence problem


The Stk392-120 are better ICs if you would like a link to get new ics that provide free instalation instructions with pics let me know and I will post the link.

May 15, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Red Halo Hitachi 53FDX20B (2002) model year


You can get the replacement Convergence ICs at this website I am posting. Just order the same STK numbers that are on your Convergence ICs. They provide instalation instructions and free on line tech support with every purchase. Heres the link.

http://servicemanuals.vstore.ca/

Apr 11, 2008 | Hitachi 53UWX10B 53" Rear Projection...

2 Answers

Convergence for HD channels only


Hello, please check the IC7102 (24LC64). This is eeprom that contains the convergence data. Please ask the Panasonic dealer if they can supply a replacement IC with the data for your HD. If you need more info please advice. Arpi

Jun 08, 2007 | Panasonic PT-51HX41 51" Rear Projection...

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