Question about Sony Grand WEGA KDF-55WF655 36" Rear Projection HDTV

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Thermal fuse is p/n# 1-910-023-93

Where do i find this part?

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It's available at for $4.80 plus shipping...
When you login as a guest and get to the model/oart number enter the part number with no dashes or spaces.

Posted on Jul 05, 2008

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Does sony rear projection tv mod kf e50a10 have a thermal fuse

Yes. There is a thermal fuse and a current limiting [protection] fuse inside it.

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THERMAL FUSE replacement


You will need to remove the back to get at the lamp housing from the inside to see it, its a bit tricky as it involves removing some pieces to get at the fuse and maybe just lifting the light engine assembly.
To access the tremal fuse you hve to remove the following item.

1. Remove rear cover
2. Remove Sub-woofer speaker box (not needed for A20 models)
3. Remove metal backing plate.
4. Remove Exhaust fan
5. Remove Optical Block screws

6. Remove Open thermal fuse.
7. Install new Thermal Fuse
I have added a video wich will help you access the tremal fuse. Its a different model may be help you.

Also added picture of connector which gose to the thermal fuse.

ajin_g_69.jpg Ok

Aug 26, 2011 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Can I use a thermal fuse from Radio shack in place of the FL231 micro fuse? the thermal fuse has a 250vac with a max current of 10a?

I wouldn't. Fuses that expire must be replaced with the same type and rating as the original otherwise your safety may be compromised.

Mar 03, 2011 | RCA R52WM24 52" HDTV Projection Television

1 Answer

Tv shut off itself red light blinks 6 times. will not turn back on

In most cases, your set has an open Thermal Fuse. I don't have a parts list handy, otherwise I would give it to you for reference as you shop for it.

It's not labor intensive at all to do. In fact, it's pretty straight forward as, if my clouded mind can recall, the thermal fuse in this set sits directly next to the light engine and right under the lamp housing.

You could do some research at or a similar site for your set's model # and the keyword of "thermal fuse."

However, once that thermal fuse goes in, you should be back up and running.

You will also want to check all fans in the set while you're there to make sure you don't have any clogged fans. Clogged fans can cause the set to overheat, and scenarios that involve overheating can lead to thermal fuses blowing again and again.

Best of luck.

Jan 20, 2010 | Sony Grand WEGA KDF-60WF655 60" Rear...

1 Answer

Power led lights blink 9 times, no power to television beyond that

Call a good TV Tech and tell him about a Sony Recall on this TV concerning the S2 Thermal IC and Fuse.This causes the 9 blinks.It is an error code. S2 Thermal sensor IC and fuse
S2 Thermal sensor IC and fuse

Jul 29, 2009 | Sony KDS-50A2000 50" HDTV

1 Answer

Thermal fuse

The original thermal fuse was a large metal piece with two tabs for wires, the new one is a small plastic device with wires attached

Sep 20, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

2 Answers

Replacing Thermal Fuse in Sony Grand Wega KDF-E55A20

The PROPER way to replace the thermal fuse is to remove the optical block first. There are at least two recessed screws holding the block in place. BE VERY CAREFUL removing the block as it is very easy to tear/rip wires when doing so. I cannot emphasize enough NOT TO JUST THROW THE NEW THERMAL FUSE INSIDE THE CABINET!!!! The thermal fuse is a safety device mounted near the lamp to prevent overheating. Those that choose to just let the fuse "sit out in the open air" are risking greater failures and the possibility of fire.

May 27, 2008 | Sony Grand WEGA KDF55E2000 55" Projection...

2 Answers

Sony kdf e60a20 - Light is blinking red, blew out the dust on the screens of lampbulb, worked right for a day and a half then started shutting down again, do I need a bulb or the thermal fuse? And if I do...

there could be a few are a list of things that could go wrong plus part numbers you wanted.

pn# 191002393 thermal fuse

pn# a1085447abarc bulb without housing cheaper

clean fans
other things that cause this:
dmd board or light engine my guess would be bulb and thermal fuse. thanks doctor video

Apr 28, 2008 | Sony KP-53S65 53" Rear Projection...

1 Answer

Thermal Fuse went bad, and i can't find it.

Theres a thermal sensor near the lamp housing. other than that I am not aware of any other thermal fuses. There are however pico fuses solder to the circuit traces themselves on the back side of the circuit board where the runners are.

Mar 22, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Pwer flashes 5 green 6 red

6 blinks is most likely thermal fuse failure. parts should be available through sony. thermal fuse is a 2 pin device under the lamp cartridge(looking from back) metal oblong looking peice that is screwed into the bottom of the tv. the new thermal fuse sent from sony will look completly different and as long as you cut the wires on the old one you can leave it in the tv and position the new fuse around the old one.

Dec 08, 2007 | Sony Grand WEGA KDF-60WF655 60" Rear...

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