I found a universal LCD controller in my broken 32" Telefunken TV.
I thought of trying to use it on my broken 15.6" laptop screen.
The interface is LVDS (1 ch, 6-bit), 30-pin connector.
The controlboard is a TP.SK108.PB818
I found the below schematic for a similar model from the same range, so I assume the headers will have the same pinouts. All the VCC and grounds match up to the schematic.
So I rewired the LVDS cable to match; controlboard on the left and LCD connector on the right.
Panel VCC was at 12 V so I rewired the VCC pins through a buck step-down set at 3.3 V and made a plan to turn on the CCFL inverter. I added a 1500 μF capacitor at the output side.
The TV board logo comes up (fits in the screen) and I can see the blue screen and access the menu, but the quality looks off. Then I plugged my laptop HDMI into the input. The image is really bad.
This is how I rewired the LVDS cable. Not shown - all grounds connected.
The firmware for the controlboard was already 1366x768 and the LCD is 1366x768 so I did not mess with the firmware.
Looking at the LVDS cable that came from the laptop I noticed the only difference in pins used was 4, 6 and 7 on the LCD side.
I rechecked all wires from the header to the LCD panel for continuity and every pin makes contact to the designated contact.
This is what the screen looks like. The grey scale test is completely the wrong color.
Do you have any advice as to what I am missing here? Except for the fact that the board sellers state it's for 27-32" panels. I can see my desktop, so it sort of works.