Display problem Acer Aspire 5630
The display on my 5630 is dim - not completely dark but probably only about
30 to 40% as bright as it used to be. Having googled for what causes dim and dark displays in laptop screens (after making sure it wasn't the lid close switch) I decided to go for the cheapest things first, so I bought a brand new inverter board. Although it's definitely the right one, it's actually worse than the existing inverter in that it strobes a bit. Doesn't do anything for my problem - the screen is neither brighter nor darker, just a bit stroboscopic. Hmm ... So, I then buy a secondhand (but guaranteed tested and working) video cable from Ebay and replace that. Still no change - the screen is still as dim, whether used with new or old inverter. Hmm again ... Oh, at this point I should say that I've checked the voltage between pin 1 of the inverter input and ground (which, I believe, should roughly be between 10 and 20 volts) and got 19.36V - so we know that the inverter is getting the correct feed from the mobo. I then look at changing the CCFL backlight tube but (a) can't find one and (b) even if I could, I've read many horror stories of breaking the LCD panel whilst trying to change the tube, so I decide to bite the bullet and buy a whole new LCD panel because they come with a new tube already in them - and I might as well upgrade from the old matte screen to a new glossy one if I'm going to do this :o) Guess what? Yep, you guessed right - still fekkin' faulty!! Display is still only at about 30 to 40% brightness - and that's with any combination of new/old video cable and new/old inverter. Any other ideas folks? TIA John |
Display problem Acer Aspire 5630
On 5/28/2010 10:25 AM, John wrote:
The display on my 5630 is dim - not completely dark but probably only about 30 to 40% as bright as it used to be. Having googled for what causes dim and dark displays in laptop screens (after making sure it wasn't the lid close switch) I decided to go for the cheapest things first, so I bought a brand new inverter board. Although it's definitely the right one, it's actually worse than the existing inverter in that it strobes a bit. Doesn't do anything for my problem - the screen is neither brighter nor darker, just a bit stroboscopic. Hmm ... So, I then buy a secondhand (but guaranteed tested and working) video cable from Ebay and replace that. Still no change - the screen is still as dim, whether used with new or old inverter. Hmm again ... Oh, at this point I should say that I've checked the voltage between pin 1 of the inverter input and ground (which, I believe, should roughly be between 10 and 20 volts) and got 19.36V - so we know that the inverter is getting the correct feed from the mobo. I then look at changing the CCFL backlight tube but (a) can't find one and (b) even if I could, I've read many horror stories of breaking the LCD panel whilst trying to change the tube, so I decide to bite the bullet and buy a whole new LCD panel because they come with a new tube already in them - and I might as well upgrade from the old matte screen to a new glossy one if I'm going to do this :o) Guess what? Yep, you guessed right - still fekkin' faulty!! Display is still only at about 30 to 40% brightness - and that's with any combination of new/old video cable and new/old inverter. Any other ideas folks? TIA John Some brands of laptops (IBM/Lenovo Thinkpads come to mind) have a pair of key combinations to brighten or dim the display. With the Thinkpads, fn-Home brightens the display and fn-End dims it. Some brands of laptops, e.g. Dell, have LCD brightness controls in the BIOS, one setting when on battery and another when on wall power. Not sure what the Acers have built in to control LCD brightness, but maybe the brightness is on a low setting? ... Ben Myers |
Display problem Acer Aspire 5630
On 5/28/2010 11:05 AM, Ben Myers wrote:
On 5/28/2010 10:25 AM, John wrote: The display on my 5630 is dim - not completely dark but probably only about 30 to 40% as bright as it used to be. Having googled for what causes dim and dark displays in laptop screens (after making sure it wasn't the lid close switch) I decided to go for the cheapest things first, so I bought a brand new inverter board. Although it's definitely the right one, it's actually worse than the existing inverter in that it strobes a bit. Doesn't do anything for my problem - the screen is neither brighter nor darker, just a bit stroboscopic. Hmm ... So, I then buy a secondhand (but guaranteed tested and working) video cable from Ebay and replace that. Still no change - the screen is still as dim, whether used with new or old inverter. Hmm again ... Oh, at this point I should say that I've checked the voltage between pin 1 of the inverter input and ground (which, I believe, should roughly be between 10 and 20 volts) and got 19.36V - so we know that the inverter is getting the correct feed from the mobo. I then look at changing the CCFL backlight tube but (a) can't find one and (b) even if I could, I've read many horror stories of breaking the LCD panel whilst trying to change the tube, so I decide to bite the bullet and buy a whole new LCD panel because they come with a new tube already in them - and I might as well upgrade from the old matte screen to a new glossy one if I'm going to do this :o) Guess what? Yep, you guessed right - still fekkin' faulty!! Display is still only at about 30 to 40% brightness - and that's with any combination of new/old video cable and new/old inverter. Any other ideas folks? TIA John Some brands of laptops (IBM/Lenovo Thinkpads come to mind) have a pair of key combinations to brighten or dim the display. With the Thinkpads, fn-Home brightens the display and fn-End dims it. Some brands of laptops, e.g. Dell, have LCD brightness controls in the BIOS, one setting when on battery and another when on wall power. Not sure what the Acers have built in to control LCD brightness, but maybe the brightness is on a low setting? ... Ben Myers Hello John! While I was reading I kept saying no it is the lamp, the lamp (well most low brightness is mostly because of the lamp)! Then you got to the lamp and I thought oh no! Ben is right of course, I would have checked that first before doing anything else though. Gee John! The only thing left if everything else was okay is the motherboard. The motherboard causing this problem is really rare. Are you sure that was a new LCD panel? Or was it used? As the lamps gets dimmer and dimmer overtime. Many will run for about 18 months if you run them 24/7. Use them less and you can push them 5 years and more. They are florescent tubes after all and if you use them 50/50 and get 5 years out of them that is pretty good. -- Bill Thunderbird Portable 3.0 (20091130) |
Display problem Acer Aspire 5630
BillW50 wrote:
On 5/28/2010 11:05 AM, Ben Myers wrote: On 5/28/2010 10:25 AM, John wrote: The display on my 5630 is dim - not completely dark but probably only about 30 to 40% as bright as it used to be. Having googled for what causes dim and dark displays in laptop screens (after making sure it wasn't the lid close switch) I decided to go for the cheapest things first, so I bought a brand new inverter board. Although it's definitely the right one, it's actually worse than the existing inverter in that it strobes a bit. Doesn't do anything for my problem - the screen is neither brighter nor darker, just a bit stroboscopic. Hmm ... So, I then buy a secondhand (but guaranteed tested and working) video cable from Ebay and replace that. Still no change - the screen is still as dim, whether used with new or old inverter. Hmm again ... Oh, at this point I should say that I've checked the voltage between pin 1 of the inverter input and ground (which, I believe, should roughly be between 10 and 20 volts) and got 19.36V - so we know that the inverter is getting the correct feed from the mobo. I then look at changing the CCFL backlight tube but (a) can't find one and (b) even if I could, I've read many horror stories of breaking the LCD panel whilst trying to change the tube, so I decide to bite the bullet and buy a whole new LCD panel because they come with a new tube already in them - and I might as well upgrade from the old matte screen to a new glossy one if I'm going to do this :o) Guess what? Yep, you guessed right - still fekkin' faulty!! Display is still only at about 30 to 40% brightness - and that's with any combination of new/old video cable and new/old inverter. Any other ideas folks? TIA John Some brands of laptops (IBM/Lenovo Thinkpads come to mind) have a pair of key combinations to brighten or dim the display. With the Thinkpads, fn-Home brightens the display and fn-End dims it. Some brands of laptops, e.g. Dell, have LCD brightness controls in the BIOS, one setting when on battery and another when on wall power. Not sure what the Acers have built in to control LCD brightness, but maybe the brightness is on a low setting? ... Ben Myers Hello John! While I was reading I kept saying no it is the lamp, the lamp (well most low brightness is mostly because of the lamp)! Then you got to the lamp and I thought oh no! Ben is right of course, I would have checked that first before doing anything else though. Gee John! The only thing left if everything else was okay is the motherboard. The motherboard causing this problem is really rare. Are you sure that was a new LCD panel? Or was it used? As the lamps gets dimmer and dimmer overtime. Many will run for about 18 months if you run them 24/7. Use them less and you can push them 5 years and more. They are florescent tubes after all and if you use them 50/50 and get 5 years out of them that is pretty good. Hi guys, I'm tagging this reply on to Bill's because his is the last in the thread at the moment. First of all, let me say AARRGGHH!!! - because Ben was right! It was just a matter of altering the brightness by the key combination of Fn and right arrow key to increase it (left arrow to decrease). All that time, money and effort spent and I needn't have done any of it. Ah well, such is life. I've learned a good lesson today :o) Now, to try and justify my position and recover a bit of self-esteem, I can say in my defence, your honour, that (a) I had no idea about that key combination (b) there's an Intel graphics utility installed and within that there are sliders for brightness, contrast, colour and gamma - but altering the brightness slider there does _not_ have the same effect at all as the key combination, which is why I continued thinking something was faulty and (c) I've never knowingly altered the brightness at all anyway. It's always been perfect at the default setting and I've had it about 3 years. It's a complete mystery as to how the brightness was turned down in the first place and, like I said, I didn't know about the key combinations, but it's all sorted now so a big 'thank you' to all you guys, especially Ben. Cheers John |
Display problem Acer Aspire 5630
"John" wrote in
: BillW50 wrote: On 5/28/2010 11:05 AM, Ben Myers wrote: On 5/28/2010 10:25 AM, John wrote: The display on my 5630 is dim - not completely dark but probably only about 30 to 40% as bright as it used to be. Having googled for what causes dim and dark displays in laptop screens (after making sure it wasn't the lid close switch) I decided to go for the cheapest things first, so I bought a brand new inverter board. Although it's definitely the right one, it's actually worse than the existing inverter in that it strobes a bit. Doesn't do anything for my problem - the screen is neither brighter nor darker, just a bit stroboscopic. Hmm ... So, I then buy a secondhand (but guaranteed tested and working) video cable from Ebay and replace that. Still no change - the screen is still as dim, whether used with new or old inverter. Hmm again ... Oh, at this point I should say that I've checked the voltage between pin 1 of the inverter input and ground (which, I believe, should roughly be between 10 and 20 volts) and got 19.36V - so we know that the inverter is getting the correct feed from the mobo. I then look at changing the CCFL backlight tube but (a) can't find one and (b) even if I could, I've read many horror stories of breaking the LCD panel whilst trying to change the tube, so I decide to bite the bullet and buy a whole new LCD panel because they come with a new tube already in them - and I might as well upgrade from the old matte screen to a new glossy one if I'm going to do this :o) Guess what? Yep, you guessed right - still fekkin' faulty!! Display is still only at about 30 to 40% brightness - and that's with any combination of new/old video cable and new/old inverter. Any other ideas folks? TIA John Some brands of laptops (IBM/Lenovo Thinkpads come to mind) have a pair of key combinations to brighten or dim the display. With the Thinkpads, fn-Home brightens the display and fn-End dims it. Some brands of laptops, e.g. Dell, have LCD brightness controls in the BIOS, one setting when on battery and another when on wall power. Not sure what the Acers have built in to control LCD brightness, but maybe the brightness is on a low setting? ... Ben Myers Hello John! While I was reading I kept saying no it is the lamp, the lamp (well most low brightness is mostly because of the lamp)! Then you got to the lamp and I thought oh no! Ben is right of course, I would have checked that first before doing anything else though. Gee John! The only thing left if everything else was okay is the motherboard. The motherboard causing this problem is really rare. Are you sure that was a new LCD panel? Or was it used? As the lamps gets dimmer and dimmer overtime. Many will run for about 18 months if you run them 24/7. Use them less and you can push them 5 years and more. They are florescent tubes after all and if you use them 50/50 and get 5 years out of them that is pretty good. Hi guys, I'm tagging this reply on to Bill's because his is the last in the thread at the moment. First of all, let me say AARRGGHH!!! - because Ben was right! It was just a matter of altering the brightness by the key combination of Fn and right arrow key to increase it (left arrow to decrease). All that time, money and effort spent and I needn't have done any of it. Ah well, such is life. I've learned a good lesson today :o) Now, to try and justify my position and recover a bit of self-esteem, I can say in my defence, your honour, that (a) I had no idea about that key combination (b) there's an Intel graphics utility installed and within that there are sliders for brightness, contrast, colour and gamma - but altering the brightness slider there does _not_ have the same effect at all as the key combination, which is why I continued thinking something was faulty and (c) I've never knowingly altered the brightness at all anyway. It's always been perfect at the default setting and I've had it about 3 years. It's a complete mystery as to how the brightness was turned down in the first place and, like I said, I didn't know about the key combinations, but it's all sorted now so a big 'thank you' to all you guys, especially Ben. Cheers John Thanks for the thread, John, Ben & Bill. My Aspire 3680 uses the control right/left arrow combo too. So much easier than going through the expl utility. -- Best regards Han email address is invalid |
Display problem Acer Aspire 5630
Han wrote in
: "John" wrote in : BillW50 wrote: On 5/28/2010 11:05 AM, Ben Myers wrote: On 5/28/2010 10:25 AM, John wrote: The display on my 5630 is dim - not completely dark but probably only about 30 to 40% as bright as it used to be. Having googled for what causes dim and dark displays in laptop screens (after making sure it wasn't the lid close switch) I decided to go for the cheapest things first, so I bought a brand new inverter board. Although it's definitely the right one, it's actually worse than the existing inverter in that it strobes a bit. Doesn't do anything for my problem - the screen is neither brighter nor darker, just a bit stroboscopic. Hmm ... So, I then buy a secondhand (but guaranteed tested and working) video cable from Ebay and replace that. Still no change - the screen is still as dim, whether used with new or old inverter. Hmm again ... Oh, at this point I should say that I've checked the voltage between pin 1 of the inverter input and ground (which, I believe, should roughly be between 10 and 20 volts) and got 19.36V - so we know that the inverter is getting the correct feed from the mobo. I then look at changing the CCFL backlight tube but (a) can't find one and (b) even if I could, I've read many horror stories of breaking the LCD panel whilst trying to change the tube, so I decide to bite the bullet and buy a whole new LCD panel because they come with a new tube already in them - and I might as well upgrade from the old matte screen to a new glossy one if I'm going to do this :o) Guess what? Yep, you guessed right - still fekkin' faulty!! Display is still only at about 30 to 40% brightness - and that's with any combination of new/old video cable and new/old inverter. Any other ideas folks? TIA John Some brands of laptops (IBM/Lenovo Thinkpads come to mind) have a pair of key combinations to brighten or dim the display. With the Thinkpads, fn-Home brightens the display and fn-End dims it. Some brands of laptops, e.g. Dell, have LCD brightness controls in the BIOS, one setting when on battery and another when on wall power. Not sure what the Acers have built in to control LCD brightness, but maybe the brightness is on a low setting? ... Ben Myers Hello John! While I was reading I kept saying no it is the lamp, the lamp (well most low brightness is mostly because of the lamp)! Then you got to the lamp and I thought oh no! Ben is right of course, I would have checked that first before doing anything else though. Gee John! The only thing left if everything else was okay is the motherboard. The motherboard causing this problem is really rare. Are you sure that was a new LCD panel? Or was it used? As the lamps gets dimmer and dimmer overtime. Many will run for about 18 months if you run them 24/7. Use them less and you can push them 5 years and more. They are florescent tubes after all and if you use them 50/50 and get 5 years out of them that is pretty good. Hi guys, I'm tagging this reply on to Bill's because his is the last in the thread at the moment. First of all, let me say AARRGGHH!!! - because Ben was right! It was just a matter of altering the brightness by the key combination of Fn and right arrow key to increase it (left arrow to decrease). All that time, money and effort spent and I needn't have done any of it. Ah well, such is life. I've learned a good lesson today :o) Now, to try and justify my position and recover a bit of self-esteem, I can say in my defence, your honour, that (a) I had no idea about that key combination (b) there's an Intel graphics utility installed and within that there are sliders for brightness, contrast, colour and gamma - but altering the brightness slider there does _not_ have the same effect at all as the key combination, which is why I continued thinking something was faulty and (c) I've never knowingly altered the brightness at all anyway. It's always been perfect at the default setting and I've had it about 3 years. It's a complete mystery as to how the brightness was turned down in the first place and, like I said, I didn't know about the key combinations, but it's all sorted now so a big 'thank you' to all you guys, especially Ben. Cheers John Thanks for the thread, John, Ben & Bill. My Aspire 3680 uses the control right/left arrow combo too. So much easier than going through the expl utility. I meant the FUNCTION right/left arrow combo. -- Best regards Han email address is invalid |
Display problem Acer Aspire 5630
On 5/29/2010 6:09 AM, Han wrote:
Hi guys, I'm tagging this reply on to Bill's because his is the last in the thread at the moment. First of all, let me say AARRGGHH!!! - because Ben was right! It was just a matter of altering the brightness by the key combination of Fn and right arrow key to increase it (left arrow to decrease). All that time, money and effort spent and I needn't have done any of it. Ah well, such is life. I've learned a good lesson today :o) Now, to try and justify my position and recover a bit of self-esteem, I can say in my defence, your honour, that (a) I had no idea about that key combination (b) there's an Intel graphics utility installed and within that there are sliders for brightness, contrast, colour and gamma - but altering the brightness slider there does _not_ have the same effect at all as the key combination, which is why I continued thinking something was faulty and (c) I've never knowingly altered the brightness at all anyway. It's always been perfect at the default setting and I've had it about 3 years. It's a complete mystery as to how the brightness was turned down in the first place and, like I said, I didn't know about the key combinations, but it's all sorted now so a big 'thank you' to all you guys, especially Ben. Cheers John Thanks for the thread, John, Ben& Bill. My Aspire 3680 uses the control right/left arrow combo too. So much easier than going through theexpl utility. I meant the FUNCTION right/left arrow combo. Well the bright side is you have spare parts now. I personally love having spare parts myself. ;-) -- Bill Thunderbird Portable 3.0 (20091130) |
Display problem Acer Aspire 5630
BillW50 wrote:
On 5/29/2010 6:09 AM, Han wrote: Hi guys, I'm tagging this reply on to Bill's because his is the last in the thread at the moment. First of all, let me say AARRGGHH!!! - because Ben was right! It was just a matter of altering the brightness by the key combination of Fn and right arrow key to increase it (left arrow to decrease). All that time, money and effort spent and I needn't have done any of it. Ah well, such is life. I've learned a good lesson today :o) Now, to try and justify my position and recover a bit of self-esteem, I can say in my defence, your honour, that (a) I had no idea about that key combination (b) there's an Intel graphics utility installed and within that there are sliders for brightness, contrast, colour and gamma - but altering the brightness slider there does _not_ have the same effect at all as the key combination, which is why I continued thinking something was faulty and (c) I've never knowingly altered the brightness at all anyway. It's always been perfect at the default setting and I've had it about 3 years. It's a complete mystery as to how the brightness was turned down in the first place and, like I said, I didn't know about the key combinations, but it's all sorted now so a big 'thank you' to all you guys, especially Ben. Cheers John Thanks for the thread, John, Ben& Bill. My Aspire 3680 uses the control right/left arrow combo too. So much easier than going through theexpl utility. I meant the FUNCTION right/left arrow combo. Well the bright side is you have spare parts now. I personally love having spare parts myself. ;-) Love it Bill :o) |
Hi
So, I then buy a secondhand (but guaranteed tested and working) video cable from Ebay and replace that. Still no change - the screen is still as dim, whether used with new or old inverter. Hmm again ... |
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