Question about Mitsubishi WS-65712 65" Rear Projection Television

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Convergence on 65712 won't reset - Mitsubishi 65712

Convergence on 65712 won't reset, I've done the factory reset and the system reset. I understand an IC needs to be replaced. How do yo udo that? I have the service manual and part# . But where is it on the board? I can't see which chip it really is? Do other resistors need tob e replaced too?

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Your symptom sounds like a damaged convergence IC.

This is a common failure for this particular television.

There are two and large IC’s that control the convergence in a big screen set. Some of the newer sets only have one. They are secured to a very large aluminum heat sinkconvergence on 65712 won't reset - Mitsubishi 6571 - 2.gif. 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 you need further assistance please comment to this post and I will try to help you further.
asnowman

Posted on Oct 03, 2009

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  • Mitsubishi Master
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Hello if you open the back up in the right hand corner you should see to large black chips they might be connected to a metal frame this called a heatsink on the chips it might say stk- also you might see some resistors in front of the chips these need to be tested as well i think they might be 39ohm when you test these desolder 1 end and test also there might be 2 capacitor at either end change these as well good luck

shaun

Posted on Oct 03, 2009

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It look like my tv is 3d


I have worked on a few of these and all have had problems with the convergence IC's solder joints. Over time, the heat generated by the IC chips weakens the solder joints. All that needs to be done is resolder the joints.

Sep 17, 2011 | Mitsubishi WS-65712 65" Rear Projection...

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I hope that helps.
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on May 05, 2010 | Televison & Video

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Would you like to bypass, defeat or reset your Mitsubishi HDTV WS-65712 Front Button lock?

If you have misplaced your remote control, and have engaged the Mitsubishi WS-65712 HDTV Front Button Lock, you can bypass the front button lock by pressing and holding the MENU button on the front panel for more than 8 seconds.

I hope that helps.
________________________________________
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Reset Mitsubishi WS-65712 VChip Password

on May 05, 2010 | Televison & Video

1 Answer

The red field on the screen, bends within the image, creating a 3D like effect.


The tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alingnment,have colors shadows pictures or 3D pictures.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the convergence board,require replacing to fix the tv picture convergence problems.The shop,will cost $300-350 for parts and labors.

Oct 19, 2010 | Mitsubishi WS-65712 65" Rear Projection...

1 Answer

Convergence is off... factory reset does not reset..... red--blue will not adjust as instructions show....


the convergence ic wnet out , it need to be replace , i would recoment to take to a repair shop because after they replace this ic they may need todo aligment , call around repair cost about $250 - 350

Aug 25, 2010 | Mitsubishi WS-65712 65" Rear Projection...

Tip

Reset Mitsubishi WS-65712 VChip Password


Bypass or Reset Mitsubishi WS-65712 HDTV V-Chip Password Lock

Models: WS-B55 / WS-48511 / WS-55511 / WS-55711 / WS-65511
Models: WS-65611 / WS-65711 / WS-65712 / WS-73711


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Would you like to bypass, defeat or reset your Mitsubishi 65712 HDTV Parental V-Chip parental lock? Have you forgotten your V-Chip passcode or password?

If you forget your V-Chip passcode, you can view the locked TV without entering your password.

When your passcode is requested, press the number 9 and the QV button on the original TV remote control at the same time. This process temporarily unlocks your TV.

When you enter the V-Chip Lock menu, pressing the number 9 and the QV button on the original TV remote control at the same time will delete your old password and prompt you to enter a new passcode. Pressing HOME at this time will cancel the entire passcode.

I hope that helps.
________________________________________
Mitsubishi WS-65712 Manual Download
Bypass Mitsubishi WS-65712 Front Lock

on May 05, 2010 | Televison & Video

Tip

Mitsubishi WS-65712 Manual Download


Download Mitsubishi WS-65712 HDTV Manual

Models: WS-B55 / WS-48511 / WS-55511 / WS-55711 / WS-65511
Models: WS-65611 / WS-65711 / WS-65712 / WS-73711

952010d.gif

Have you misplaced your Mitsubishi WS-65712 HDTV Owners Manual?

Would you like a digital, searchable, pdf version of the Mitsubishi WS-65712 HDTV Users Guide?

Follow this link to download a pdf version of the operations manual.

I hope that helps.
__________________________________________
Bypass Mitsubishi WS-65712 Front Lock
Reset Mitsubishi WS-65712 VChip Password

on May 05, 2010 | Mitsubishi WS-65712 65" Rear Projection...

Tip

Bypass Mitsubishi WS-65712 Front Lock


Bypass Mitsubishi WS-65712 Front Button Lock

Models: WS-B55 / WS-48511 / WS-55511 / WS-55711 / WS-65511
Models: WS-65611 / WS-65711 / WS-65712 / WS-73711


952010d.gif



Would you like to bypass, defeat or reset your Mitsubishi HDTV WS-65712 Front Button lock?

If you have misplaced your remote control, and have engaged the Mitsubishi WS-65712 HDTV Front Button Lock, you can bypass the front button lock by pressing and holding the MENU button on the front panel for more than 8 seconds.

I hope that helps.
________________________________________
Mitsubishi WS-65712 Manual Download
Reset Mitsubishi WS-65712 VChip Password

on May 05, 2010 | Mitsubishi WS-65712 65" Rear Projection...

Tip

Reset Mitsubishi WS-65712 VChip Password


Bypass or Reset Mitsubishi WS-65712 HDTV V-Chip Password Lock

Models: WS-B55 / WS-48511 / WS-55511 / WS-55711 / WS-65511
Models: WS-65611 / WS-65711 / WS-65712 / WS-73711


952010d.gif



Would you like to bypass, defeat or reset your Mitsubishi 65712 HDTV Parental V-Chip parental lock? Have you forgotten your V-Chip passcode or password?

If you forget your V-Chip passcode, you can view the locked TV without entering your password.

When your passcode is requested, press the number 9 and the QV button on the original TV remote control at the same time. This process temporarily unlocks your TV.

When you enter the V-Chip Lock menu, pressing the number 9 and the QV button on the original TV remote control at the same time will delete your old password and prompt you to enter a new passcode. Pressing HOME at this time will cancel the entire passcode.

I hope that helps.
________________________________________
Mitsubishi WS-65712 Manual Download
Bypass Mitsubishi WS-65712 Front Lock

on May 05, 2010 | Mitsubishi WS-65712 65" Rear Projection...

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