Question about Sanyo HT30744 TV

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Sanyo HT30744 tv

Turned my tv on in the morning and had sound but no picture.  Have tried a variety of fixes to no avail.  My question:  Since repair would mean a service call (too heavy for me to move), around $60. plus travel, would diagnosis and repair be worth it?

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  • greyfly Apr 21, 2008

    Since I only paid $450. for the set, I couldn't see tying it up for a couple weeks of repairs at some indeterminate cost. I just went to Best Buy and bought a new Samsung lcd.

  • LANDO210 May 26, 2008

    My SANYO VIZON turns on but can only here sound, no picture only black screen. Can this be fixed? What should cost be?

  • cbcbcb Jun 18, 2008

    Same Problem with my Sanyo Vison. Sound but no picture.



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You have to find out the cost of the repair itself to make a decision.

I am not familiar with this model. I can speculate from experience going by your description.

If it is a CRT set and there is no picture the fault may be with the high voltage section, or a scan failure. It is also possible that the CRT itself is in failure.

Jerry G.

Posted on Apr 19, 2008

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J'ai repare recemment une television comme la tienne. A l'allumage l'ecran etait noir et parfois apres plusieurs minutes, l'image arrivait. Quand elle voulait arriver bien sur. J'ai tout simplement refait des soudures et refait des pistes sur le CRT Board. Ca avait l'air beau pourtant. Mais depuis bientot plus d'un mois, pas de nouvelles de mon client. Ca a l'air de tenir quoi. J'ai donc refait des pîstes sur le CRT board, entre les pins Bleus Rouge et Verte du tube et les pieces electroniques qui y etaient ratachées. Pas évident de t'expliquer ca comme ca, mais au pire ecrit moi j'essaierai de te faire un dessin.
Philippe RSVP Electronique Jonquiere Quebec

Posted on Sep 29, 2008


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I have a Sanyo TV model HT30744. The problem is that there is sound but no picture when the TV is turned on. After about 10-15 minutes a picture will appear. Distorted at first, the picture gradually...

Yes, its still reasonable to have it fix , because the tv will be working fine after they replace probably the tube.

Hope that helps.........

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Not really sure how much the tv weighs, but I know it is a bunch. I have 2 of these t.v.s. One I bought at Wal-mart and after about 6 months it started doing this green screen also. I would normally give the side of the tv a good wack and it would go back to normal for awhile. The other tv I bought from my neighbor who was moving for $25. The problem with this one was the "no picture but I have sound". If I wacked this one I could get the picture to come back on for a while, but it would go out again. Well just the other day I took the back off the "no picture" tv and was looking around. I noticed that the circuit board that is attached to the picture tube was loose. I pushed it back down on the tube and put it back together and the picture has been fine since. So I thought I would check the one with "green screen" issues and sure enough that circuit board was loose also. Pushed that one all the way back down and have not had any issues with that tv either. Hopefully that fixed my problem, I guess time will tell. Maybe it will fix yours also.

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You need the original factory remote control. Do a web search for Sanyo. Go to their tech support. They can advise you about how to order a new remote for your set.

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could be that you have speakers around the tv check to see if that is so. and remove the speakers.good luck.

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I had the same problem with my refurbished HT-30744 model and my mom's HT-32744 model. It was either try to fix it or buy a new one, so I figred had nothing to lose.

I removed the back cover, unseated the picture tube driver board from the neck of the picture tube (it just pulls off), put on a dab of di-electric grease on the connector on the card, reseated the card, removed and re-applied more grease, reseated the card and the picture has like new for 2 weeks now!

This was a very easy fix.

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