Samsung LE40A616A problem

[DoomedEarl]

Okay... lets use this room

I have the above tv. It has recently developed a fault in that when it is switched on there is no picture. If I switch it off and on again via the front power button the picture will usually appear. Having a little read on the sites digi and hejira posted it appears it may be capacitors on the power board. Am I correct in my assumption or could it be something else like the inverter? I have soldered wii chips and jtaged xboxs so I guess soldering caps should be easy enough?
TIA

 

[digidude]

this is a common fault on samsungs, if you have the right type of PSU board (which the 2 i have here dont lol, typical)

take the back off, and on the power supply board, there should be a small cluster of capacitors in the top right corner

 

[DoomedEarl]

Thanks Digi... I think thats from the video I saw, with his nipper helping him.

What caps would I need then please?

 

[digidude]

it would really depend on your board m8, as theres 2 similar types, but with different caps, then theres another type thats nothing like the one pictured

could you post a high res photo?

 

[DoomedEarl]

Its still on the stand
I'm at work, and out tonight but when I get a chance I'll take it apart and have a look. Cheers m8

Also will my 30w soldering iron melt the solder?

 

[Hejira]

this is a common fault on samsungs, if you have the right type of PSU board (which the 2 i have here dont lol, typical)

Come on digi fess up how many TV's you got in various states of repair! LOL

 

[digidude]

Come on digi fess up how many TV's you got in various states of repair! LOL

13 TVs, 3 with smashed screens,from 20"-37" 2 monitors, one with smashed screen, too many sky boxes, a few consoles, 3 tvs to collect, ones a viera with a broken screen, that i have a screen ready for, the viera cost me 25 quid , and ebay snipes set up on another 3

i also have a deal with a local shop that sells TVs, that ill buy faulty tellys he collects from customers who buy a new one from him

as well as boards from sets ive stripped down due to broken screens

 

[Hejira]

That makes me feel better about my pile of PC's n Laptops! LOL What diff's a few TV's gonna make!

Viera sounds a touch if you pull it off.

Sorry Doomed I'll now stop hijacking ya thread.

 

[DoomedEarl]

No problem m8

Any clues on the soldering iron question?

 

[digidude]

yeh a 30W should be ok for it m8

 

[DoomedEarl]

it would really depend on your board m8, as theres 2 similar types, but with different caps, then theres another type thats nothing like the one pictured

could you post a high res photo?

try this for size

 

[DoomedEarl]

Whats that white stuff?

 

[digidude]

its glue m8, some of those caps are starting to swell though, even though its only slight, they could be the cause

 

[DoomedEarl]

So what caps would I need, sorry I'm a noob at this.
Is it just a case of looking at values on the side and matching them up?
And do I replace them all, including the blue ones?

 

[DoomedEarl]

Okay, tonight I'll take it apart again to look at the value of the caps.
Two questions... Is that blue one a cap? Where's a nice place to get them?

 

[digidude]

the blue ones look like ferrite cored inductors m8, dont worry about them, im looking to see if i can find the capacitor values online for you, i have read them before while searching for another repair, but cant find them again now though lol

 

[digidude]

here you go m8

This particular Power Supply Unit (PSU) has 3 different types.

* 1000μF 105°C at 10V
* 1000μF 105°C at 25V
* 47uF 105°C at 50V

 

[DoomedEarl]

here you go m8

This particular Power Supply Unit (PSU) has 3 different types.

* 1000μF 105°C at 10V
* 1000μF 105°C at 25V
* 47uF 105°C at 50V

Brilliant thanks m8... now the question is do I fix it and tell the wife I couldn't an get a 50 inch plasma whilst selling this one

 

[DoomedEarl]

Caps arrived today... gonna have a go later... if I can get the kids off the bloody Wii!!

 

[digidude]

good luck m8

play safe