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Re: were is the thermal fuse on a sony KDF E55A20
The CORRECT way to replace the thermal fuse is to pull the optical block out so you can get to the thermal fuse mounting plate. I would NOT suggest just letting it "float out in the open cool air" as some have suggested as this is a safety part and not installing properly could be a safety hazard
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I would have to check but that may and is likely the thermal fuse from the lamp to the power supply-----common issue and Sony was replacing them with a different one.
The simple test (for me) is with rear cover off look at the plastic housing for the lamp---the fuse is there but hard to see---two wires wind up and under that and enter the main wire harness going to the left (as seen from rear)--if can follow them about the middle of the set in back they connect to a 2 pin plug----with plug unsnapped read across the two wires going back to lamp housing---no reading across them and the fuse is gone.
The replacement is different looking.
What if I find this I have been known to do is jump the plug on the side going to the power supply(not the lamp side) just to see if set will now work-----not seen one where there was a short but just a poorly designed fuse.
6 times is the lamp thermal fuse or lamp. its a thermal that sits on the bottom of the lamp area.
remove the fan and you will see the siler disk with black base cut the wires and slide the new one in on the side secure it on the old thermal and your fixed.
The 6 red blinks means that the thermal fuse is blown, sony part number 191002393, which can be bought off of Sony.com for about $5. You will have to remove the back cover, remove the OU bracket (It is silver with 3 ground wires connected to it), remove the fan bracket with fan and then the duct fan bracket (Plastic fan duct housing). Looking between where the fan was and the lamp on the front of the TV, there is a small silver metal disk with 2 wires connected to it, which is the thermal fuse. Using an Ohm meter, you can test it. If it reads open, it is bad. Of course, you must unplug the TV first and use caution. It is a very easy fix for someone who is handy. (Approx 10 minutes)
As I responded last night the replacement of a thermal fuse is a very difficult task. The component is mounted on the lamp cage and require a great deal of disassembly. If you pull the back and the pull the center brace you will see a harness of wires. From the lamp cage you can follow either two black wires or a black and gray wire to where it has a coupling plug in said harness. Suggest a qualifier servicer to perform this task. The part can be purchase from Andrews Electronic.
Sony model KDF55WF655 blinking light 6 red flashes,no picture,no sound....
I just replaced my thermal fuse for $4.80 plus shipping handling.Took me 30 minutes to fix and 30 minutes to get dust out of TV.Take off the back of the tv about 8 screws,then remove the fan housing on the right hand side about 4 screws.If you have the new fuse you will know which wire it is ..grey and white.I found it easy to get to the other end through the front panel of the tv only 2 screws ,remove front panel and then remove cover on projection bulb and you will see the other end of the fuse clipped on.Remember to unplug tv. TV is working excellent now .
Thanks to everyone on this website.I have pictures if anyone needs them to repair it.
I want to clean the projector sitting in the back as I see that there is some dust on it. I dont know if that is a good idea or not or if it will even make a difference with the image on the screen. I want to take a pc of cotton and windex to it while I am waiting for my thermal fuse. Anyone with advice?
There is a Thermal fuse under the lamp housing that opens up and Sony has a New style fuse to replace it with, it opens up one of the p/s lines to set code 6, replace with new thermal fuse and test. You will want a Skilled Professional to replace this fuse as it does require some dissassembly and removal of light engine to remove fuse from under lamp housing to put new one on side of lamp housing.