Touch screen and keyboard not working. 1 ribbion cable in unit not connected near right speaker. trying to find replacement cable or schematic for this device.
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Sometimes the flex cable that connects the touch screen comes lose when reassembling. You will need to take it back apart and check all connections. If the flex cable is fully set then there are two things that can be wrong.
1: The screen and or cable is bad. The flex cable is very fragile and can tear easily. Inspect the flex cable for small tears or sharp folds. Also look for missing components on the flex cable.The solder pads are shiny if none was there and dull if there was something there
2: The pressure connector on the motherboard is broken or not fully seating. Look at the pins on the back of the connector to see if any part of it came loose. You may need a magnifying glass to inspect it.
If all looks well then it may be a bad touchscreen.
Attach to power charger. Try hard shut down then try reboot all while connected. Then at that point you should see your keyboard again once o/s is back up.
Basic steps to follow:1. Replace your IDE/SATA cable (cable that connects to motherboard to local (system drive). 2. Check if there's a dirt build-up on RAM pins (clean it via pencil eraser then cotton with 70% alcohol or dirt/rust cleaning solution. 3. Same process on step #2 as for your grahics card if there's any. 4. Graphics card cooling system maybe overheating, try touching it, if it is, replace the cooling fan if you can(also the thermal paste) 5. Try your built-in (on-board graphics card alone, by removing the inserted video card. If your PC worked normally then the problem is on the inserted Vcard. If the prob still exist then the defect is on the built-in graphics processing unit of the board that needs a major repair by reballing the onboard video chip.
Try the following:
1. Check if the on/off button on your touch pad is turned on.
2. Restart the computer by pressing ALT+F4 until you get a shut down screen and then using arrow keys to scroll to restart.
3. If still not working, try reinstalling your touch pad drivers from the disk you got with your computer (connect an external mouse to do so, if not introduced to keyboard shortcuts).
Good luck and please rate if something helps.
Hi,
I fixed mine finally!!! I ordered a cable kit and replaced the cable from the display to the motherboard (I actualy replaced them all but that one was the culprit.) Also, I learned that if you put the cable in backwards :) into the motherboard, it will appear very dim as it did with the bad cable. I believe that this is because the backlight inverter is not active, which in other posts here, may mean that the inverter is bad. Just a thought...
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