Question about Toshiba 55H70 55" Rear Projection Television

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Do you know if they sell vibration eliminators or shock absorbers for the rear projection floor tv?

Whenever you walk close to the tv it goes out of convergence. I can adjust the tv but mother in law is 300 lbs and frequently moves around room as so tv mess up picture.


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Re: do you know if they sell vibration eliminators or...

Solder connections to the convergence stk ic chips have developed ring cracks most likely. The chips will fail if not resoldered. The chips will be mounted to large heat sinks and have stk392-110 or similar marked on them. You will need good soldering skills or professional help is in order. The chips are prone to failure for this reason. Unplug the AC cord before attemping to open the TV . You will need to gain access to the bottom of the circuit board the chips are mount to. Unplug the electricity...did I mention to unplug the AC three times??? Yes ;)

Posted on Jan 14, 2008

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What causes my picture shake

Check your TV level ... it must stand on a firm foundation ... it wobbles because your floor shakes - reduce the shaking by improving its contact with the floor.

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Hello, I have a Samsung HLP4663W 46 in. Rear Projection HDTV Television, and they lamp kept going out so I bought the proper lamp to replace it and it still would not show a picture. Should I pay to have...

Recheck the tv projection lamp installation?Recheck the lamp door latch,see if it is proper closed and tightly closed of the lamp door?Hear any clicking noises,when the tv projection lamp tries to ignite up.If hearing constance clicking?Mean the tv board that call the Ballast board it is also dead,this Ballast board only job are to ignite the tv projection lamp only.Ballast board must have be replaced.If the tv have a colors wheel is it dead or damage and broken require changing,u will hear major humming,motor or grinding sound noises and alot of times the tv pictures flashes multiples colors on the tv screen or the tv pictures will have a black&white flashes of a background of white light within the tv pictures background.Selling defective tvs almost impossible to sell it for a decent or a good priced or it at all.If this tv u have less than 5 years old,tv it is still have alot of it life ahead of it,tv tube picture screen panel,will last u atleast another 10 years and have to be 8 hours tv whatching every day to dies this faster or could be last to 15 years,if tv less hours of watching every day.Should get priced quotes from many tvs repair shops and get it fixed max prices about $400-$500 dollars.New tv same model and sized or difference models too will cost u like $1,200-$1,500 dollars.

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How do I reset the lamp life on my LG 52SZ8R.

hold the mute on the remote and press enter on the tv and it will come up in the menu for you to reset

Jul 08, 2009 | Projection Televisions

1 Answer

I have a Samsung HCL652W, the convergence is way off and I am unable to adjust it enough to make the picture viewable. It looks very 3D. What part would need replaced to fix this?

True convergence problem. The crt's use electromagnets and magnets for alignent of the electon beam. Magnets are physical alignment and the electro magnets are vis remote. The kids juming is a key element. I would suggest unplugging the tv and let it set 24hrs to discharge. Discharging the tv is critical. The picture tubes hold a significant charge and should be respected!!

What you are describing is a loose or marginal connection. Kids jumping is like slapping the side shocking the loose connection. I would pull the back cover, and OBSERVE the electronic connections around the yoke of the three CRT's. Keep hands away from larg diameter cable near the projection side of the tube. (large end) If you know what color is drooping, close inspection of that tube connections compared to the others would be a place to start. While the back cover is off consider blowing the dust out eliminating heat build up, and wiping the optics before reinstalling the cover. Let me know

Jun 27, 2009 | Samsung HCJ652W 65" Rear Projection...

1 Answer

Need to replace rca projection convergence fuse fl231

Can you please give me the entire story behind this? You also stated you have the same problem, I would like to know if someone said it was just a fuse and why you think your's is just a fuse. Looking forward to hearing from you.

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1 Answer

Mitsubishi ws 46807 convergence

convergence fail. try resoldering the 2 convergence ICs in the middle baord located on the large heatsink. this might fix unless the problem has gone it course

Mar 21, 2008 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Toshba CF27E50/CF30E50/CF32E50

The convergence IC needed are STK 392-110 two of them and possibly a resistor or two If you don't know how to unsolder and solder I would suggest an honest repairman. most Parts distributors won't sell unless you have a business but you could try anyway. A volt-ohm meter is required "IF" a resistor needs to be checked or is burned. Convergence IC's are a common problem with all projection tv's. It may last another 5 years especially if you don't buy the generic ic's

Dec 30, 2007 | Toshiba 55H70 55" Rear Projection...

1 Answer

Mitsubishi TV Model VS-7083

The deflection board and/or smps have most likely ring-cracked on one or more components on the board due to heat stress. It's not an expensive fix at the moment, but continuing to operate it this way will place additional stress on components like the regulator and they will eventually fail...
If you're taking it into the shop for this repair also discuss with your tech to do the following per Mits bulletin: APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
Have a great day!

Nov 29, 2007 | Mitsubishi VS-7083 70" Rear Projection...

3 Answers

Am i screwed

No, not screwed, but you will need it repaired...
Sounds like convergence issue and possibly ring-cracks on the amps themselves until the heat and vibration did them in..
Now the shutdown circuit won't let you power-up the set...
This unit uses two STK392-020 Sanyo built amps. Those, together with testing and replacing some low ohm resistors should have this unit up and running again in short order...

Nov 27, 2007 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Center of screen black

What you are seeing is called a text box.It is a menu selection
called closed-caption.Walk thru menu selection and learn how
to turn cc and text on and off.Check owner/operator manual....T.

Oct 21, 2007 | Philips 60PP9202 60" Rear Projection...

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