Question about Toshiba 36HF72 36" TV

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65H82 changed all the caps for the waving problem on the hyper board. that resolved the problem,but now the tv when powered up goes full green then transions to a good looking raster, then goes full green and remains that way until i repower it back up.then it does the same thing. any feed back would be most appreaciated. also if anyone has any info on loacating another hyperboard that may be be the way for me to go. hyperboard = (pd0637) (pz01) (23599310c). Thank you for your time, GOD BLESS, Dan O

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Re: 65H82

Have you tried to contact yet. Go to their web site and get their telephone number. They should be able to help you with a good hyper board. this might be your problem with what the set is doing now. Did you have this problem before you worked on the scan converter board?

Posted on Sep 08, 2007

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I have a Panasonic TV CT-34WX50 every time I change channels

it sounds that have problem in the chroma board ( video board ) a small board that hooked up in the neck of the picture tube. if the color is greenish the cause is dead in red video driver transistor or open resistance. hope this can help good luck.

Jul 26, 2012 | Panasonic CT-34WX50 34" TV

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Trapezoid picture

Keep in mind I do not know how much skill or knowledge you have about TV sets:

One of a few areas---This is a crt or picture tube model----The deflection yoke on the picture tube is number one suspect---if it is bonded to the crt you are done----not replaceable without buying the tube/yoke combination.

Only other area is the Pincussion circuit which should consist mainly of some caps for width and horizontal geometry.

A faint other cause can be indicated if you see a wave MOVING up or down in whatever picture you have= indicates the INPUT filter cap in the main power supply has opened or come loose from the board.

The wave is a 60 cycle indication of AC getting past the power supply and will cause a wave and could be mistook for a trapezoid issue.

Easy to spot the cap as it is larger than any other in the set.

if follow up question or more information press the make a comment button on this page.

Mar 25, 2012 | Sanyo DS32224 TV

2 Answers

My Magnavox tv is about 5 years old. When we turn it on the screen is blank. A soft high pitched sound comes out of it. The green "on" light blinks on and off. Any ideas on what is happening and why it...

You have a bad eeprom. Very common problem for this TV. The replacement eeprom [location, IC002, on the Tv board] is dependent on which microprocessor [location, IC001, on the TV board] and which stereo decoder [IC 1001] are present on the board. See if IC002 has a color mark on it. red, yellow, green..etc. Or give me the numbers on the actual IC 001 and Ic1001. For example IC 001[ microprocessor] might beMCU A22V01-TO and IC 1001 [stereo decoder] MSP3440. Take this info to a TV tech if you cannot repair this TV yourself. Thanks for asking and give me a High Five of hands!

Sep 14, 2010 | Philips Magnavox 27MS343S 27" TV

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Picture is wavy then fine, happens every two minutes

This model like several others had problems with what is called a Hyper board inside which processes all signal inside the set.

From a Toshiba service bulletin:

No: PJTV200503 2 Pages Ref: WU032505
Product: Projection TV Date: 3/25/05
Models: 42H81,43HX71, 43H71, 50HX81, 50H71, 50H81, 53HX71, 53H71, 57HX81, 57H81, 61H71, 65HX81 AND 65H81
Product Safety Precautions:
Product Safety Precautions are described in the Toshiba service manual(s) for models covered in this bulletin. All safety precautions and checks shall be complied with before returning the equipment to the customer. Servicers who defeat safety features or fail to perform safety checks may-be liable for any resulting damages and may expose themselves and others to possible injury.
Application: The information contained in this bulletin applies only if you encounter the symptom(s) listed below.
Subject: MVPU13 Hyper Module Repair (23786198 / 23148017X)
Symptom: Multiple Symptoms may be experienced depending on which capacitor is faulty. The primary symptoms are jagged, digitized or pie crusting of the picture. The set may also be described with a poor sync condition.
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 as shown in Figure 1. It's recommended that all of the capacitors identified in Figure 1 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.)

There are several surface mounted capacitors that dry out with age and usually the problem starts out when first turned on and then eventually after on a long enough time the set works--the time will get longer as the problem gets worse.

The board is no longer available and only two options here: locate and replace all the selected caps which is not a do it yourself job or remove the board and send it out for rebuild.

Let me know if you need more info as I have seen dozens of these sets with this kind of problem.


May 13, 2010 | Toshiba 57H83 TV

2 Answers

Mitsubishi ws 65819

Ur power board ic converter it dead.
Ur Convergence board is bad going to die to.
Both must change.

Aug 15, 2009 | Mitsubishi WS-65819 TV

1 Answer

Screen goes black immediately after astar logo screen comes on

Astar 30" LTV 3001 ....These TV's have a cooling problem that causes premature electrolytic capacitor failure. De-solder and Test all the 2200uF-25v, 3300uF-35v and 1000uF-10v caps in the power supply (center board, back of TV). Use a good LCR meter that will read 3300uF or better, Replace all bad caps with 105c rated caps. If you don't have an LCR meter, replace all the mentioned caps on the PS. If fuse on board is blown, also replace the F9222L regulator IC chip. Mounting a small cooling fan on rear of TV over the PS will help keep your new caps from failing again. This requires holes in the stand bracket and the rear of the TV, power can be supplied from a 14V source near the bottom of the PS board.

Jan 21, 2008 | Astar LTV-3001 TV

1 Answer


what you did forget you just tell what is your problem now clearly so i can help you in a systematic way.

Sep 08, 2007 | Toshiba 36HF72 36" TV

1 Answer

Green wave-like color distortion over reds

do you happen to have any speakers of any size within about 3 feet in any direction of the tv?? move them if so, I have large speakers about 5 feet from my tv at home and i still get some distortion once in a while with red and dark green streaks.

Aug 15, 2007 | Sony WEGA KD-34XBR970 34" TV

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