Fujitsu 10.4 Screen Help - wiring

**sargeants** · 06-07-2009, 10:45 AM

Okay... so I'm frankensteining my carputer (really it started out as a monster)

I've got my hands on a couple 'Toshiba' touch screens from Fujitsu B6120 units. I'm attempting to hook it up to my HP TC4400 tablet using the LVDS wires. So far I've had limited luck with finding the exact datasheets for the 'new' screens and the original one(to figure out the output of the machine).

The model number of the new screen is LTM10C327F, and I'm trying to have it replace a HT12x21-220. I've got the backlight hooked up but am having issues with it actually displaying picture. I get a few faint lines if you look at the screen at the right angle, and they sort of flicker.

Hopefully someone can help me out finding what pinouts I'm missing or have incorrect.
Original screen pinouts/pinins (closest I could find were specs on HT12x21, no -220)

New screen pinouts/pinins (closest I could find was LTM10C313K)

I'm also trying to wrap my head around what could be plugged into pin 14 on the new screen, as it's got a resistance value to ground, so I don't believe it's truly a ground pin, also looking on the actual board it's not connected to other ground spots(ie pin 13)

Help please.. my Google searching has only given me limited options. Anyone with a Fujitsu laptop that's functioning could you grab me some pin assignments/voltages?

**sargeants** · 06-08-2009, 11:53 AM

well I've got a little progress, but still missing something.
that pin 14 voltage is confusing me; it has to plugged into something or the picture is really really dark.... yet flickers differently.

Anyone?