Goodmans 26" LCD TV No picture

[jamesfreddie]

I have a goodmans TV that is about 7 years old but the other day the picture went however the sound was still going.

I left it on the otherday and it had no picture but sound it was left for about 1 hour and then the picture came on.

I have checked inside and i can't see any bad caps.

It looks like the backlights are on as you can see a glow behind the screen. And if you tap the screen you can see a displacement of light.

I can't see any image.

Please help!!

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

Bump...

[budm]

Re: Goodmans 26" LCD TV No picture

If the backlights are on but no pictures, then more likely the T-CON board may be dead due to blown fuse or not getting voltage from the main board.
Please post good clear pictures of the back side of the TV so we can see how all the boards are hooked up. The T-CON board is under the metal shield, it should at the top center of the LCD panel.

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

Are these pictures OK?

[tom66]

Re: Goodmans 26" LCD TV No picture

Try pressing on this connector while the TV has no picture and see if the picture comes back.

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

Try pressing on this connector while the TV has no picture and see if the picture comes back.

Just tried but it didn't make any diffrence.

[tom66]

Re: Goodmans 26" LCD TV No picture

OK, do you hear sound when it has no picture, or does it only come back after the picture appears?

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

The sound is always on even when the screen is blank.

[tom66]

Re: Goodmans 26" LCD TV No picture

OK, can you get a top down shot of the main board? That is the board with the video inputs on it. If possible, don't take it from an angle, and try taking it in daylight (on a window ledge is a good place to try.) I will highlight some tests to make. Also, what is the model number/code of the TV?

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

I will hopefully get some better pictures up tommorow when its light outside.

I might take the TV outside.

Model Number: LD2101

MP (I assume this is the manafacture date): 061004

[madmatt]

Re: Goodmans 26" LCD TV No picture

Hi James, good luck with this. I have exactly the same issue with my bush 27" LCD tv. Sound but no picture, screen glows on pressure. Mine used to work when I gave it a good thump before turning on sometimes? But not any more

On mine there are 2 capacitors that are slightly bulging on the top, so it may be that for me, but how I came across this forum is searching for the pico fuse on the t-con. Now, I've never changed a capacitor in my life, and never even heard of a pico fuse(or a t-con board for that matter) but I would live to fix it for a few pennies if I can.

Watching this with interest
Best of luck
Matt

[madmatt]

Re: Goodmans 26" LCD TV No picture

Oh, by the way, my board is a 17mb08p-3
Same as yours I think?
Matt

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

Hi James, good luck with this. I have exactly the same issue with my bush 27" LCD tv. Sound but no picture, screen glows on pressure. Mine used to work when I gave it a good thump before turning on sometimes? But not any more

On mine there are 2 capacitors that are slightly bulging on the top, so it may be that for me, but how I came across this forum is searching for the pico fuse on the t-con. Now, I've never changed a capacitor in my life, and never even heard of a pico fuse(or a t-con board for that matter) but I would live to fix it for a few pennies if I can.

Watching this with interest
Best of luck
Matt

I went back to it this morning to have another look at it and ran my finger over the caps and found a very slight bulge in one of the caps. I have ordered a replacement which should be here tommorow.

Hopefully that will fix it.

Have you fixed yours?

I looked on ebay and found all 3 boards for £20.

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

I will hopefully get some better pictures up tommorow when its light outside.

I might take the TV outside.

Model Number: LD2101

MP (I assume this is the manafacture date): 061004

Should be LD2601 not 21. Oops.

[madmatt]

Re: Goodmans 26" LCD TV No picture

Guess what! I've only gone and blummin' done it!
Bought 2 1000uf 16v capacitors at 39p each from maplins, got the soldering iron out, and 30 mins later the time came to fire it up. Flicked the power switch expecting a bang/flash but all I got was a fully working telly!
First bit of electronics I've ever done! 78p and I feel I've saved £250!almost worth that in satisfaction!
The only slight concern I have is the old caps had GF 105 deg C on them, the new ones have 77deg c on them?
Is this still ok? Tv blasting out as I type so all good for now !
Yippee - I'm one happy chappy!
Matt

[tom66]

Re: Goodmans 26" LCD TV No picture

Those caps won't last (maplin sell crap caps) - they'll be fine for a couple of months, maybe a year... When it fails again, use some better ones like Panasonic FC/FM/FR, they are about 25p each.

[jamesfreddie]

Re: Goodmans 26" LCD TV No picture

Guess what! I've only gone and blummin' done it!
Bought 2 1000uf 16v capacitors at 39p each from maplins, got the soldering iron out, and 30 mins later the time came to fire it up. Flicked the power switch expecting a bang/flash but all I got was a fully working telly!
First bit of electronics I've ever done! 78p and I feel I've saved £250!almost worth that in satisfaction!
The only slight concern I have is the old caps had GF 105 deg C on them, the new ones have 77deg c on them?
Is this still ok? Tv blasting out as I type so all good for now !
Yippee - I'm one happy chappy!
Matt

Was that on the same board as this TV? Was it a surface mount?

[retiredcaps]

Re: Goodmans 26" LCD TV No picture

The only slight concern I have is the old caps had GF 105 deg C on them, the new ones have 77deg c on them?

1) Those new caps at 77C will die shortly. See PCBONEZ explain the affects of temperature on a cap

https://www.badcaps.net/forum/showpo...30&postcount=7

2) My standard advice to people for cap replacement (regulars may skip)

https://www.badcaps.net/forum/showpo...84&postcount=3

[tom66]

Re: Goodmans 26" LCD TV No picture

I doubt they are 77°C, as it's not a standard temperature. Maplin sells mostly 85°C caps. One or two 105°C caps from "NIC" components - but no idea on long term reliability there with them. For some reason they list 1000uF 35V as "motherboard" caps.

[madmatt]

Re: Goodmans 26" LCD TV No picture

Was that on the same board as this TV? Was it a surface mount?

See my original post mate, pretty sure it's the same board, and yes, surface mount.

To everyone else- thanks for pi55ing on my fire! Tv is working right now, and if it dies at least I know where to look and to replace with better caps
These are the first caps I've bought in my life, and the first tv I've fixed so I'm still chuffed- so there lol!
Matt