Question about Toshiba 43H71 43" Rear Projection Television

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Service Menu Access?

Is there a service menu for the 43h71? If so how do you get into it?

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  • Jason Houston May 18, 2007

    Thanks, I got in but not sure what I can do. Is there some type of guide that tells you what you can do?

    Trying to fix a RED out of convergence issue.

  • Jason Houston May 22, 2007

    actually yeah i replaced the ICs and still have same problem. the resistors look ok. i decided to trash the tv and get a new one.



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I had a problem with my green gun having lines all over the place ,I cleaned the conections on the board on and below the pull the white conectors all out and spraying down with brake cleaner ,this morning thr the green is great and to night I,m doing the same with the re gun boards,i hope this will clean it up i will let you know.

Posted on Nov 22, 2007

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Mute the tv then press mute again hold it down and press menu on the tv itself not the remote. Be carefull there is a lot of important stuff in there!

Posted on May 12, 2007

  • josh vannoy May 22, 2007

    1st go to the customer convergence menu and try to adjust red. Does it move at each of the points in both directions? If not (this is what i suspect you will see), forget about the service menu it will not move there either. Your problem is a circuit failure. Look around this web site and you will find a 1000 different posts about your problem. It will consist of a couple of amplifier IC's and maybe a few resistors. Then your adjustment should be minor and you can probably achieve it with the customer convergence. If the red moves fine in the customer menu then post again and i'll try to hel[p you through the service menu.



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I have a 43h71 Toshiba that does not have a picture. The red power light is flashing. Any idea what this means?


Most manufacturers today have taken advantage of the diagnostics available when circuits fail. Your flashing light indicates generally where the problem is. This is disigned to help us technicians find the problem easier and faster. You did not mention the number of blinks. Toshiba is secretive with their error codes. You would need to buy a service manual from to obtain them. Cost is about $16.00 US for a download. This would provide the information that you need.

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Jan 08, 2011 | Toshiba 43H71 43" Rear Projection...

1 Answer

43h71 service manual

What is proiblem with your set?

Oct 09, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Toshiba Model #43H71

go to service mans menu and try horiz width adj..

Sep 22, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Problem with tv

If your Model is Tosh 43H71,then pull chassis and locate F850,
F851 soldered-in fuses...check with meter..if open,replace with
proper value micro fuse(s) and solder jumper wires 008,010,017,
048,600 located on signal board.Replace convergence IC's
STK392-110 with IC's from kit # X 480295 ( upgrade )...........T.

Mar 31, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

43H71 Toshiba

Change both IC's at same time is SOP ( standard operating
procedure) Note: Poor soldering from factory can lead to IC
failure, so, at the very least, hand solder all pins.....
Verify which is red chip by Service literature or follow red plug-in
traces to red IC.................................T.

Nov 23, 2007 | Toshiba 43H71 43" Rear Projection...

1 Answer


If you're talking about the STK392-100 convergence amps, the repair manual is not a great deal of help.

Here are two websites I found helpful:

Good luck.

Nov 18, 2007 | Toshiba 43H71 43" Rear Projection...

2 Answers

Red is off

This is the typical convergence problem you will read about over and over on this website. You need to replace 2 amplifier IC's part number STK392-110 and check all of the resistors in that circuit.

May 11, 2007 | Toshiba 43H71 43" Rear Projection...

2 Answers

How to adjust red blue green

if ur in service mode already..turn down all first turn it up until the desired intensity is achieve.then blue all the way until it almost blend the green.u must not see one color either too much green or blue.turn up red now,let it blend until u see a perfect black and white.note:make sure that the color level is set to minimum and tint to center. ihope i help u..

Mar 20, 2007 | Toshiba 43H71 43" Rear Projection...

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