Sony Wega kdf-55e2000

[casik992]

Hey I got this TV and turned on and worked fine the later turned off. The light blinks red 5 times. Sony said that means a bad tcon board. I took the TV apart and the only visual damage is what I believe is the optical block. Anyway I'm trying to figure out what is the tcon board and is there a way to test it.

[casik992]

Re: Sony Wega kdf-55e2000

Here are some screen shots of the manual. I. Not sure what it all means but it looks relevant

[casik992]

Re: Sony Wega kdf-55e2000

On a side note I have ordered two new lamps tried them and they would work then after a few hours the TV would be blinking red so I ordered just a new bulb and put it in the original housing and nothing.

[casik992]

Re: Sony Wega kdf-55e2000

OK now this is what I believe is the lamp driver but I don't know. I'm thinking this may be the piece that needsbto be replaced. The part in my hands is the part the lamp plugs into. I thought this was a power supply but now I don't know.

[nuala]

Re: Sony Wega kdf-55e2000

Bad ballast module,

[casik992]

Re: Sony Wega kdf-55e2000

So would that be what the lamp plugs in too which I'll try again to post a picture of. And would that damage on the optical block cause a problem?

[casik992]

Re: Sony Wega kdf-55e2000

OK the ballast part number is bau-1001//q and I can't find one online but someone elsewhere said that a different part number ha01641 would also work the same and there is one on amazon for sale. Does anyone know if this part will indeed work with my TV please and thank you

[casik992]

Re: Sony Wega kdf-55e2000

Or does anyone know where I can order one with a food return policy in case this part isn't bad

[casik992]

Re: Sony Wega kdf-55e2000

Good not food sorry.

[newtothis]

Re: Sony Wega kdf-55e2000

Ok your thread gets overlooked because you are talking to yourself and it seems you are being helped via the post count.

Ok 5 blinks means Tcon yet you change lamps?... Then you say its a bad ballast????

Slow down there, You do not know what a T-Con is so you don't know very much if anything about TV repairs... It is one of the basic boards of a TV.

Provide pictures of each board and one of the entire back of the TV so we can see how everything is connected.

[casik992]

Re: Sony Wega kdf-55e2000

OK here are some pictures of the disassembly and the TV is all took apart.

[casik992]

Re: Sony Wega kdf-55e2000

And yes I changed lamps because when I first looked it up I saw people say I g bad bulb. But then I was looking for people who changed the bulb and still had a problem and I heard the lamp driver was bad. I called Sony just to see what they said and someone said tcon board but then when I called back and asked for a price they said they can't give diagnosis so I don't know why I was told tcon but I called a technician and they said the tcon is built into the main board. I'm really just confused but the diagram I uploaded says that 5 blinks is a lamp driver which I'm assuming is the board with the cable that the lamp plugs into.

[casik992]

Re: Sony Wega kdf-55e2000

Anyone else think its the ballast? And that is what the lamp plugs into right?

[casik992]

Re: Sony Wega kdf-55e2000

Ghost town

[Ltank]

Re: Sony Wega kdf-55e2000

I am looking at one that's given to our Church and it has a dim picture with a new bulb.
in a dark room the picture looks good. Odd that the menu is dimmer than the video though. I have P.S. out and inspecting it. I was not aware there was a ballast until seeing your post. I left the TV at the Church and have the PS board. Guess I will get the ballast out tomorrow. I found no obvious problems on the P.S. The ballast board looks easy enough. Probably just jinxed myself.

[Ltank]

Re: Sony Wega kdf-55e2000

I downloaded the service manual. As my luck would have it, it does not include the ballast board. T appears to have about everything else. I will look at it Friday. About the only used items are available are bulbs. guess its time to upgrade, if I cant fix the ballast.. Had nothing to loose it was free.

[R_J]

Re: Sony Wega kdf-55e2000

If the picture is dim with a new lamp the ballast is unlikley the problem. The problem is most likley due to a dusty/dirty light engine or the optical filters could be burnt causing poor light transmission.
They are getting too old and not worth spending any money on them.

[ljintexas]

Re: Sony Wega kdf-55e2000

Optical Block

[ljintexas]

Re: Sony Wega kdf-55e2000

Better known as light tunnel

[R_J]

Re: Sony Wega kdf-55e2000

The light engine is the complete assembly of mirrors, polarizer filters, some consider the optical block as the lcd/prism assembly.

The light tunnel, see picture (only in dlp optics) is only part of a light engine, a bad light tunnel will usually cause a shadow on one of the sides, top or bottom of the picture, and usually will not effect the whole picture.

LCD projection does not use a light tunnel or color wheel.

I found this information but disassmbly of the optics is not an easy job and not for everyone.
https://sites.google.com/site/sonylc...ockreplacement

If this tv came from a smokers house (or Bar) or dusty environment cleaning may be next to imposible, and what can happen when dust builds up in the fans etc. cooling is not as efficient and the polarizer filters burn or get discolored and don't pass light very well.