Question about Toshiba 42H81 42" Rear Projection Television

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Toshiba 42h81 - bad r7731, need replacement

Thanks for such a great place to find my answers.

i have identified r7731 as being blistered but have no idea where to purchase the 1.8ohm resistor

jamesm81@gmail.com

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  • Toshiba Master
  • 8,617 Answers

Radio shack should have that resistor. Another option is check with the tV repair shops locally. Most distributors will not sell 1 resistor but most TV shops will and radio shack may have it or can order it.

Posted on Apr 05, 2008

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Posted on Jan 02, 2017

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COMO CUANTO COSTARA LA CONVERGENCIA DE COLOR VERDE


If can speak English I can help as my Spanish is limited---the convergence of green cannot be adjusted except in technical menu and if bad needs both the stk-392-110 chips replaced first.
5_29_2012_1_41_11_pm.jpg

May 29, 2012 | Toshiba 42H81 42" Rear Projection...

1 Answer

I can NOT stop the "verbiage" from appearing and


gfarley806,

Your description sounds like your unit is in the "DEMO" mode. The procedure to access the demo mode and turn it on or off is in the operaitons manual. If you do not have one you can download one for free at http://www.retrevo.com/support/Toshiba-42H81-TVs-manual/id/311bh747/t/2/ . If you do not care about getting the maual and just want the verbiage to end here is the procedure:

To start the demo mode:

Press and hold the MENU button on the front of the set for 4 seconds.

To stop the demo mode:

Press RECALL, EXIT or Power
Thanks for using FixYa and for the great rating. Great ratings keep experts answering questions. Thank you.

hardrocko

Nov 17, 2010 | Toshiba 42H81 42" Rear Projection...

1 Answer

Looking for resistor value on Toshiba PB7243 Power convergence PCB Resistor is R7731 part of bias for convergence IC I think.. but looks burnt


R7711, R7721,
R7116, R7726, R7736, and R7731. are MF, 1.2 ohm, 2W resistors--MF means metal film or metal oxide--check all of them if you are replacing the two STK-392-110 CHIPS---

They are protect resistors in case some part of either chip shorts--if even one is bad--you need to replace both chips at the same time and adjust.

If you need help or advice let me know--I am here to help.

If this information helped you rate this solution as I do this here for free.

SD TECH

156dc47.jpg

Jan 02, 2010 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 42h82 convergence resistor and pico locations


(6) 1.8 ohm 1watt metal film resistors for R7711, R7716, R7721, R7726, R7731 and R7736 yes the STK 392-150 will work fine.

Sep 24, 2008 | Toshiba 57H82 57" Rear Projection...

2 Answers

Bad picturre on toshiba tv


Good Day, pieps57;

Corrective Action: Remove the MVUP13 Hyper Module from the TV chassis, remove the top shield and replace the 10uf, 16v capacitors using Part Number 24619040. It’s recommended that all of the capacitors identified be replaced (Note: These capacitors are low impedance surface mounted aluminum electrolytic capacitors. Care should be taken to avoid damaging the PCB while replacing these capacitors.) CAPS: cx178, cx221, cx230, cx241, cx250, cx261, cx270, cx541, cx670 & c514, c5030.
Good Luck, Big Irish.

Jul 07, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba 42H81


crt failure
http://www.riddledtv.com/repair/journal/Toshiba51H84/index.html

Jan 14, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

No image on my TV


Bad hyper module = no longer available = have qualified tech
rebuild yours = replace bad caps on board...............T.

Dec 08, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

42h81 RPTV


Rebuild hyper board = replace bad caps on board................T.

Nov 04, 2007 | Toshiba 42H81 42" Rear Projection...

2 Answers

Toshiba 42h81


Hello, one of possible solutions is to replace capacitors (10uF/50V) on HYPER (PD0246) module. Please ask the tech to check/replace them. If you need more info please advice.

Apr 27, 2007 | Toshiba 42H81 42" Rear Projection...

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