Samsung LE40R83B & LE40R88BD *board swap*

[Hamie]

I have these 2 tv's the look different but internally they are almost identical.

Both share power supply BN44-00167A
Have the same t-con 4046HDCM4LV0.1
And the same inverter SSB400WA16V

Both also share the same panel. LTA400WT-L06

So one of the tv's has a mainboard problem that I can't figure out and the other one has a backlight problem caused by the bulbs. I can get it to work but need to remove 3 of the transformers and jump them for it to go on.

So I thought I'd change the mainboard from the one with bad bulbs and replace out in the one with the faulty mainboard.

Tv powered up and was working fine for about an hour then the picture froze, clicked off then back on and now doesnt find the arial signal.
Tried HD ports and it says it's not supported?

Any idea why this would be? Doesn't make sense... Surely if you ordered a replacement panel it would be like doing the same board swap.

I've tried factory reset no joy.

[selldoor]

Re: Samsung LE40R83B & LE40R88BD *board swap*

Did you compare the numbers on the boards or on the barcode labels.
the last few digits on the labels make a big difference.

[tom66]

Re: Samsung LE40R83B & LE40R88BD *board swap*

Possibly the other main board is bad, too.

[Hamie]

Re: Samsung LE40R83B & LE40R88BD *board swap*

Just realised that in my first post I forgot an important part!

The main boards don't match. The only difference between the tv's are the mainboards and the front and back plastic covers.

But if the panel is the same would that matter?

[selldoor]

Re: Samsung LE40R83B & LE40R88BD *board swap*

You would need to look it up to see what mainboard is compatible with which Tcons and which panels.

[Hamie]

Re: Samsung LE40R83B & LE40R88BD *board swap*

Sorry selldoor I'm confused by what you mean?

The panels are identical as are the tcons.
Would it possibly be something in the service menu?

[selldoor]

Re: Samsung LE40R83B & LE40R88BD *board swap*

More likely the firmware/eeprom - tom will know better about service menus

Are they identical - did you check the bar code labels

Also as Tom says both mains may be faulty

[selldoor]

Re: Samsung LE40R83B & LE40R88BD *board swap*

Oddly enough I cant see that tcon anywhere all I find end in .02