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Just replaced lamp in tv and it still doesn't work

It is a Sanyo lcd tv PLV-65WHD1 the warning light and the replace lamp light are on the tv will not come on at all. We replaced the lamp and it still is doing the same thing. Is there something else we could try.

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I found that according to the service manual there is a thermal switch behind the fan on the left side (facing the tv) you remove the back (grey plastic) panel. get a flashlight and look behind the fan and there is a round pushbutton style thermal switch. get a long object ( make sure tv is unplugged) like a pencil and push in on the button if it clicks this might be your problem. if you need a copy of the service manual E mail me at and I'll E-Mail it to you.

Posted on Nov 25, 2009

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Sanyo flat screen model #DP46849 @7 years old. When first turned on, the picture is dark, kind of blurry on right half of screen. This all goes away as the TV warms up. Any ideas?

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.
If the back-light is provided with CCFL lamps [not LED}; replace the CCFL lamps.

Jul 02, 2015 | Sanyo Flat Panel Televisions

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There are several models on several generations of Zenith manufactured LCD projection tv's. Without knowing the exact model of yours i can't be sure but in most of them the Lamp life counter is reseted this way: with the tv in stand-by, you press the "?" key on the remote then immediately you press 9,8,7,6 and then the OK. If the procedure was correct the 3 lights on the front of the tv will blink to signal the end of the reset procedure.
In others , hold down the Mute button on remote and Enter on TV at the same time for a few seconds, you should get a screen prompt asking if you want to reset the timer for the lamp.

May 25, 2011 | Flat Panel Televisions

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I have a Panisonic PT-52LCX15 I replaced the lamp and now I'm trying to reset the LCD meter, I have tried holding the vol button and the split button and the red lamp light still is on, maybe you could let...

The lamp light should NOT be RED.
The lamp light should be yellow for the lamp timer warning.

There are two ways of retting the lamp timer=
1) on the TV use the vol - button. push until vol goes to zero, then keep holding it down
on the REMOTE push the "split" button

the yellow light should go out indicating that the lamp timer has been reset
if this fails to work,
on the REMOTE, use the "PLAY" button, instead of "split".
you may have to try this a few times to get it to "take". you'll know when the YELLOW lamp light goes out.

However, a RED LAMP light means you lamp is not working or missing.
reseat your new lamp into the TV...and be certain the LAMP DOOR is securely CLOSED.

Apr 12, 2011 | Panasonic Flat Panel Televisions

3 Answers

Sanyo model DP42848 pic comes on for a sec then goes off made noise when first turned on a couple days before it went out

If there is problem with an inverter or a back light, the lights will come on for about 2 seconds and then shut off.
The Sanyo DP42484 television has a problem with poor quality back lights. I had one that had three bad back lights. I replaced them and it fixed the problem. The TV now comes on and stays on.
Replacing the back lights is a very tricky problem. You have to completely disassemble the entire TV to expose the back lights. The hardest part is removing the LCD glass without damaging the very delicate ribbon cables that connect it to the rest of the TV or cracking the glass.
You then have to reassemble the television, except without the LCD glass. You can then power up the TV and see which back light are not illuminating.
The back lights are 950 mm long and 3.3 mm wide. There are 12 of them. The ends are coated in a silver paint for conductivity. They are held by metal U-shaped sockets at either end. In the middle of the length of the fluorescent tube is a C-shaped plastic support to hold up the center of the long tubes. This plastic is very brittle and breaks easily. Try to slide the tube to the side thru the plastic support. If you try to spread the support wider and pull the tube foreward, the C-shaped plastic support will break.
I searched for an exact replacement, but I was not successful. The closed I could get was 950 mm long and 3.0 mm wide with wire ends. I purchased these from for $25 each. Part number CC30950. I bent the wire ends back and soldered them to the metal sockets. When the 3 bad lights were replaced the Television came on and stayed on.

Nov 20, 2010 | Sanyo DP42848 LCD TV

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Sanyo lcd tv blinking

Power supply board is dead.Replaced the power supply board will solved this problems.Tries, to buy a refurbish power supply board for the replacement.

Apr 02, 2010 | Sanyo 42 in. LCD TV

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I have a green stripe down the right side of my tv.

If you have replaced the lamp hen you have to do the alignment and adjust your light engine

Feb 27, 2010 | Sanyo DP26647 26 in. LCD TV

1 Answer

Tv wont turn on


I have a pile of these in my shop. Unfortunately and usually, a backlight lamp is bad, and the inverter board is damaged when it goes out. The backlight lamps are sealed inside the panel, so the usual method of repair is to replace the panel.
If you turn the lights off in the room, then turn the tv on, you will probably see a momentary flash of light from the backlight trying to start up. The lamps can be replaced, but the option is not really cost effective given the amount of time it takes to replace them/very delicate nature of the lamps/availability of the lamps/cost of the lamps. Replacement panels might be available, but you'd have to use a TV shop for reference or call Sanyo directly.
These units also have a history of power supply heat damage, so if you don't see the momentary flash, it could be the power supply. But the momentary flash is the dead giveaway.

I hope this helps you...

Dec 30, 2008 | Sanyo DP32746 32 in. LCD Television

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