CF-18 screen swap

[Bumpydog]

Hi all,

I have two CF-18 touchscreen (not digitizer) tablets. One machine 1, the touchscreen doesn't work (selects whatever is at the extreme bottom of the screen) and on the other machine it looks like the backlight has gone. The second machine had a bit of a knock and, since that time, I can vaguely see the Panasonic logo come up upon power-on, but nothing else.

My question is - Can the good screen from machine 1 be moved across to machine 2 (leaving the touchscreen elements where they are). If so, is there a tutorial somewhere how to do this?

Thanks, Malcolm

[capt.dogfish]

They can but to what end? If you have a good backlight with a bad touchscreen, and a good touchscreen with a bad backlight you are going to have to shift some components around to get the good backlight with the good touchscreen. Personally, I'm thinking that moving the backlight parts would be easier than splitting the touchscreen and the LCD. Someone will be along soon with a copy of the service manual. Post your full model number CF-18xxxxxxx to get the ball rolling.Welcome to the nut house
CAP

[Alex]

As Cap says post the full model numbers

I am guessing that the one with a failed touchscreen is a 1.2mHz model

The most likely fix for cf-18 #2 with a dead backlite is an inverter

[Bumpydog]

Machine #1 = CF18KHHZBBE
Machine #2 = CF18DHAZXKM

Machine 1 is a UK machine and #2 is a US model.

M.

[Bumpydog]

I am guessing that the one with a failed touchscreen is a 1.2mHz model

The most likely fix for cf-18 #2 with a dead backlite is an inverter

Yes, it's a 1.2mHz machine (1.5GB/320GB). Knowing that the inverter probably gives out a very high voltage, how do you test it?

M.

[Alex]

You disassemble both lids
http://www.modly.net/servicemanuals/...ice-Manual.pdf
Remove the inverter from the 1.2 machine and try it in the other
I think the inverters are the same

[Bumpydog]

OK, it wasn't the inverter. In the end, as I had both machines in bits, I swapped the screens and the one with the dead backlight now works, so it's the backlight itself that is faulty (can that be replaced separately?)

Now I have to order a 1Gb DDR1 SODIMM for the Mk2 as the card in the Mk4 is DDR2.

I should have tried this when they were still in bits, but would the touchscreen bevel from the Mk2 work in the Mk4? If so, I might swap everything back to have the Mk4 fully working. Where can I buy a replacement screen for the Mk4?

[TopCop1988]

Machine #1 = CF18KHHZBBE
Machine #2 = CF18DHAZXKM

model number
CF18KHHZBBE
MSP: $4,239.00 (USD)
Status: DISCONTINUED
DESCRIPTION:
Intel Pentium M 753 1.2GHz ULV (Centrino), 10.4" XGA High Bright Touch Screen, 60GB HDD, 512MB RAM, Intel 802.11a+b+g WLAN, Bluetooth, Dual Hi-Gain Antenna Pass-through Connectors, Windows XP Pro SP2, No Optical Drive

model number
CF-18DHAZXKM
MSP: $3,783.00
Status: DISCONTINUED
DESCRIPTION:
Pentium M 1.1GHz ULV (Centrino), 10.4" XGA High Bright Transmissive Touch Screen , 40GB HDD, 256MB RAM, Intel 802.11b+g WLAN, Dual Hi-Gain Antenna Pass-through Connectors, Windows XP Pro

[ohlip]

[QUOTE=Bumpydog;6920117]OK, it wasn't the inverter. In the end, as I had both machines in bits, I swapped the screens and the one with the dead backlight now works, so it's the backlight itself that is faulty (can that be replaced separately?)



From my experienced on changing the backlight of an LCD is that the Cf-18 is the most easiest of them all. You've got only to take off the tape on the buttom of the lcd and the backlight with its metal housing will come off completely without disturbing(allignment) of the LCD layer.


ohlip