Hi all, I'm a first-timer here and I got some problems about my X32.
It worked well few days ago, but now it is having a black(blank) screen when powered on.
The following are the videos of the problem when I tried to start X32.
https://www.youtube.com/watch?v=Jal85Kf2Hfs
https://www.youtube.com/watch?v=K9qmQoBHEYo
Is there anyone who knows what causes the problem and how to solve it?
Any advice will be appreciated.
Thanks.
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X32 Black Screen Problem
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Re: X32 Black Screen Problem
It seems (from your videos) that the LCD backlight doesn't even start, the screen is entirely black. I would suspect the LCD inverter maybe. You could try to do the following: when turning on the laptop, take a strong flashlight (of any kind) and direct it at the lcd. Use various angles, see if you can see anything displaying on the screen. (If it does, means LCD is working but is not backlit).
Other than that I could only think of using external monitor (preferably over VGA) and checking if it shows anything. Also, is the HDD working? (Loading the OS, etc.)
good luck!
Other than that I could only think of using external monitor (preferably over VGA) and checking if it shows anything. Also, is the HDD working? (Loading the OS, etc.)
good luck!
T14amdR7-4750U/32GB/500gb.ssd/debian_testing (main driver)
X320/i7-2620M/8GB/256gb.ssd/FHD13.3''IPS/debian_testing (ex-main driver)
T30Pentium-M 4 1.8Ghz 512MB RAM - under restoration
X230/i5/8GB/500gb.hdd+256gb.m2ssd/IPS/debian_stable+win7
755CE, 486DX, approx 28MB RAM (Win95 JP)
X320/i7-2620M/8GB/256gb.ssd/FHD13.3''IPS/debian_testing (ex-main driver)
T30Pentium-M 4 1.8Ghz 512MB RAM - under restoration
X230/i5/8GB/500gb.hdd+256gb.m2ssd/IPS/debian_stable+win7
755CE, 486DX, approx 28MB RAM (Win95 JP)
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Re: X32 Black Screen Problem
Welcome to thinkpads.com!
I don't have access to the YouTube videos at the moment but there are a number of things which can affect the backlight of the LCD panel. Here's a list:
1) The lamp inside the panel (aka, CCFL) has finally reached the end of its life. If there had been a pinkish/reddish tint to the screen when first turned on, then this is most likely. Usually is fixed by replacing the entire panel. It's possible to swap out just the CCFL but it is a delicate job and if not done properly, can ruin the display.
2) The inverter board is defective. This small, slim board, located just below the LCD panel behind the screen bezel converts a DC voltage into a AC voltage that lights the CCFL up. If the board is bad, then the backlight will not turn on. It is easily replaced and inexpensive (about $15US in most cases).
3) A fuse which protects the inverter is blown. This is located on the motherboard and can be fairly easily replaced but it does require some soldering skills and good eyesight.
These first three points of failure will still allow a "ghost" image to appear on the screen. Which is why evening_hunger recommended shining a flashlight on the screen (when there normally should be something displayed; the IBM splash screen, BIOS page, Windows desktop, etc.)
4) The lid switch is stuck in the down position. This shuts down the inverter, which also turns off the backlight. The lid switch should be located along the back edge of the keyboard bezel, usually near the right hinge. There is typically a small post/pin/notch on the LCD bezel which sticks out a few millimeters to depress the switch when the lid is almost closed. Use a pencil or pen to make sure that it can be depressed a little bit; should feel "springy".
5) For some reason, BIOS has decided that the active display is NOT the LCD; instead video is being directly solely out the VGA port. If this is the case you can re-enable the LCD by pressing the Fn+F7 key combination (hold down the blue Fn key at the lower left of the keyboard, then press and release the F7 key once; then release the Fn key). Additional Fn+F7 keypress should cycle the active display between the LCD only, the VGA port only and sometimes, both on them active.
6) A connection is broken. That can be anything from the LCD ribbon cable not being plugged into the motherboard fully, a break in the ribbon cable itself, the inverter board not being connected to the ribbon cable or the small rectangular connector that's attached to the LCD panel (and CCFL) unplugged from the inverter. This requires removal of the keyboard and LCD bezel at the minimum. You can download a copy of the Hardware Maintenance Manual from this forum by looking up at the top of any page and clicking the HMM link.
Other things which can cause a display to not turn on would be:
1) Some other problem with the motherboard which causes the system not to power up and run through the self-tests (i.e. POST - power on self test).
2) Defective memory can allow a system to turn on but not complete POST. However, there's usually some beeps that are generated.
3) Defective accessory card; typically a MiniPCI card that goes bad.
I don't have access to the YouTube videos at the moment but there are a number of things which can affect the backlight of the LCD panel. Here's a list:
1) The lamp inside the panel (aka, CCFL) has finally reached the end of its life. If there had been a pinkish/reddish tint to the screen when first turned on, then this is most likely. Usually is fixed by replacing the entire panel. It's possible to swap out just the CCFL but it is a delicate job and if not done properly, can ruin the display.
2) The inverter board is defective. This small, slim board, located just below the LCD panel behind the screen bezel converts a DC voltage into a AC voltage that lights the CCFL up. If the board is bad, then the backlight will not turn on. It is easily replaced and inexpensive (about $15US in most cases).
3) A fuse which protects the inverter is blown. This is located on the motherboard and can be fairly easily replaced but it does require some soldering skills and good eyesight.
These first three points of failure will still allow a "ghost" image to appear on the screen. Which is why evening_hunger recommended shining a flashlight on the screen (when there normally should be something displayed; the IBM splash screen, BIOS page, Windows desktop, etc.)
4) The lid switch is stuck in the down position. This shuts down the inverter, which also turns off the backlight. The lid switch should be located along the back edge of the keyboard bezel, usually near the right hinge. There is typically a small post/pin/notch on the LCD bezel which sticks out a few millimeters to depress the switch when the lid is almost closed. Use a pencil or pen to make sure that it can be depressed a little bit; should feel "springy".
5) For some reason, BIOS has decided that the active display is NOT the LCD; instead video is being directly solely out the VGA port. If this is the case you can re-enable the LCD by pressing the Fn+F7 key combination (hold down the blue Fn key at the lower left of the keyboard, then press and release the F7 key once; then release the Fn key). Additional Fn+F7 keypress should cycle the active display between the LCD only, the VGA port only and sometimes, both on them active.
6) A connection is broken. That can be anything from the LCD ribbon cable not being plugged into the motherboard fully, a break in the ribbon cable itself, the inverter board not being connected to the ribbon cable or the small rectangular connector that's attached to the LCD panel (and CCFL) unplugged from the inverter. This requires removal of the keyboard and LCD bezel at the minimum. You can download a copy of the Hardware Maintenance Manual from this forum by looking up at the top of any page and clicking the HMM link.
Other things which can cause a display to not turn on would be:
1) Some other problem with the motherboard which causes the system not to power up and run through the self-tests (i.e. POST - power on self test).
2) Defective memory can allow a system to turn on but not complete POST. However, there's usually some beeps that are generated.
3) Defective accessory card; typically a MiniPCI card that goes bad.
Ray Kawakami
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
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