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SL500, LED backlight -> CCFL backlight ?
Posted: Tue May 08, 2012 9:15 am
by eee3
I want to replace my WXGA (1280x800) Matte LED to WSXGA+ (1680x1050) Matte CCFL.
But my inverter card has jack for ribbon cable (LED) and I need for another inverter card with 2 pin jack (CCFL). Am I right?
Could you tell me FRU of CCFL inverter card for SL500?
UPD. My inverter card 42W7997
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Tue May 08, 2012 9:37 am
by loyukfai
Just curious, what would you like to do so...?
Cheers.
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Tue May 08, 2012 10:41 am
by eee3
loyukfai wrote:Just curious, what would you like to do so...?
Cheers.
Why do I want replace the LCD? WXGA (1280x800) is awful.
So, is it possible?
Maybe I was mistaken in the title of this topic. I don't want to replace the backlight of my LCD. I want to use another LCD (1680x1050, CCFL). But there is a problem - different inverter card.
Odp: SL500, LED backlight -> CCFL backlight ?
Posted: Tue May 08, 2012 1:52 pm
by thorcik
You will definitely need to replace at least your inverter card in this case, consult the hardware maintenance manual for exact part nmber.
Re: Odp: SL500, LED backlight -> CCFL backlight ?
Posted: Tue May 08, 2012 2:05 pm
by eee3
thorcik wrote:You will definitely need to replace at least your inverter card in this case, consult the hardware maintenance manual for exact part nmber.
You're right. I cann't find the part number of this card in manual.
LED 1280x800
http://support.lenovo.com/en_US/product ... D=PD002490 , Inverter card
42W7997
CCFL 1680x1050
http://support.lenovo.com/en_US/product ... D=PD002650 , Inverter card
42W7997
I don't understand.
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Wed May 09, 2012 1:56 am
by loyukfai
My bad, late at night... : )
There's a "LED control card" listed as 42W8219. Perhaps that's the "inverter card" for the LED-backlight screens.
The one you shown in the OP looks like 42W8219. 42W7997 looks differently if I'm not mistaken.
Cheers.
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Wed May 09, 2012 2:49 am
by thorcik
Check also the LCD cable - part numbers for CCFL are different - 44c5375 and 44c9957.
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Wed May 09, 2012 2:57 am
by eee3
loyukfai wrote:My bad, late at night... : )
There's a "LED control card" listed as 42W8219. Perhaps that's the "inverter card" for the LED-backlight screens.
The one you shown in the OP looks like 42W8219. 42W7997 looks differently if I'm not mistaken.
Cheers.
So, I have 42W8219 and I need this 42W7997 ?
Image is not very clean. Does it have slot for 2 pin jack?
My LCD cable 44c5375 (30 pin).
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Wed May 09, 2012 4:16 am
by loyukfai
Seems that the cable from the inverter/control board to the screen is different...
Not sure about the cable from mainboard to the screen.
Cheers.
Edit: Anything informative in the HMM (
http://download.lenovo.com/ibmdl/pub/pc ... 762_03.pdf)...? Probably start from p.203...
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Fri May 25, 2012 8:14 am
by emeraldgirl08
ElvisUnknow wrote:My T400 XWGA LED screen (LP141WX5-TLP2, 1280x800) needs to be fixed.
But can I replace it by XWGA+ LED (1440x900)? I mean, is it also compatible and replaceable with my machine, though it is different in pixels?
I do not see why not. If your T400 already has an LED screen in it the swap with the WXGA+ LED screen should be painless and fairly easy.
Re: SL500, LED backlight -> CCFL backlight ?
Posted: Fri Oct 12, 2012 8:05 pm
by sampath bandara
hello frends...
I have a sl500 and its backlight was not working now...
I have check and i found that power inverter is not suppling anything to the ccfl pin... In there i have check with a volte meter and i have found one pin have something, but other pin is not responded. I have power in pin from the main board i have got several reading...
I have check out that the little tranformer on the inverter damaged. I have saw there in the out put coil one wire have comes out and it is attached to the one out put path of the transformer. But the other one havent a wire like that.... Is that normal... Plz help me i have struckd here for 3months