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Jack
Jack, Technician
Category: TV
Satisfied Customers: 8343
Experience:  40 years experience as audio,video repair and installation tech
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I have a toshiba big screen modle 51H84 that has lines in the

Resolved Question:

I have a toshiba big screen modle 51H84 that has lines in the screen , had a repair man look at it says it needs new board, do you know where i can get one
Submitted: 5 years ago.
Category: TV
Expert:  Jack replied 5 years ago.

Jack :

Hi and welcome to justanswer.
I`m going to help you with your tv but first i will have a few questions;

Does your picture look somewhat like the one below ?

Full Size Image

Jack :

I will wait for a while(standby) to see if you become available for chat, just send me a reply ,and i will be notified and be with you ASAP.

Customer:

i can not get the web page to see image

Customer:

No the lines are vittecal lies that go across the screen

Customer:

i had a repairman that took the board and replaced some resistores in it but it did not work, he said it would need a new board, said he check with toshiba and thay do not have any boards for that tv. this tv was made in april 2005, he said he could have the board sent to a company and have it rebuild.

Jack :

Sorry it took a while to reply

Jack :

Do you happen to know the name of that board ?

Jack :

Did you hear the word "convergence" ?

Customer:

No

Jack :

Would it be possible to get that info from the repairman ?

Customer:

The Board Was On Right side of tv i\looking at back and was to the back of tv

Customer:

I will Call Him

Jack :

I will have to see if i can get hold of a service manual identify that board .

Jack :

O.k and send me a reply if you can get that info ?

Customer:

Jack No Awsner From Tv repair Man, I got some # XXXXX Board, Hyper signal Type B, PD1738, 23599986A, Also Audio Video, HD jacks Board Plugs In To The Board That He said Is Bad

Customer:

i dont known if this information is helpful

Jack :

Hello again

Jack :

Yes this is very helpful

Jack :

It sounds like the hyper board is defective and it is usually caused by some small capacitors.

Jack :

Usually there is something like 11 of them to replace and they are all Value: 10 mfds(microfarads) at 16 volts

Jack :

This is very common.

Jack :

The number PD1738 is also known as MHSU11

Jack :

Unfortunately at this time it looks like the usual suppliers are out of stock .

Jack :

There is this one (link below) that sells refurbished boards, which means they replaced the faulty capacitors.

http://cgi.ebay.com/Toshiba-MHSU11-PD1738-Hypermodule-Board-Repair-Service-/130421489358

Customer:

The Repair Man that i had aready replaced capacitors in the board & said i will need new board, do you feel a refurbished board will work are do you think it can be somethind else

Jack :

Without being there to see the problem , i can tell you that it does sound like that board is defective and 95% of the cases are cleared by replacing those caps.

So in a way it is an easy repair and those refurbished boards should do the trick.

Jack and other TV Specialists are ready to help you