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Current version by Iaroslav Timofeev,
Title:
iMac starts up, chime heard, screen is black, ext. screen no signal
Text:
| Hello. |
| My mac is 20", 2.0 GHz, ATI Radeon HD 2400 XT |
| A1224 (EMC 2133), Model ID: iMac7,1 |
| MA876LL |
| After a lightning strike, screen stopped working. |
| Here are symptomps: |
| mac boots up, chime is heard. fans, hard drives are heard. it is working as you can hear volume change and other button presses, I can also put it to sleep. All in all, fully functional. |
| opened it up: three led are on, the fourth is not. |
| no visual damage, as I can see. all cables seem well connected. |
| tried external display via mini dvi adapter, but I get no signal. unfortunatelly, |
| Now, I am thinking of replacing video card or logic board... |
| I think it is the video card, because, I think, if the logic board would be broken, I would not be able to hear all the sounds and have the mac running. Right? |
| Want to ask what everybody thinks? |
| == Update == |
== Update == Good |
== Update == Good |
| I want to follow up with this thread. |
| If anyone has the same imac, let me tell you that YOU DO HAVE a separate video card. I opened my imac and found it to be EXACTLY as this guide [guide|1014] |
If anyone has the same imac, let me tell you that YOU DO HAVE a separate video card. I opened my imac and found it to be EXACTLY as this guide http://www.ifix de |
If anyone has the same imac, let me tell you that YOU DO HAVE a separate video card. I opened my imac and found it to be EXACTLY as this guide http://www.ifix de |
| I don't know why machead3 thinks it is soldered. Maybe on others it is soldered, but surely not this one. |
| I replaced my motherboard with a working one, and it did not solve the problem of my black screen, so I returned the motherboard. I will order the video card from ebay and will try to replace it. |
| I hope it works. |
Device:
iMac Intel 2022 EMC 2133 and 2210
Tags:
chime is heard, led 4 is off, no video imac 20" emc 2133 a
Status:
open
Accepted Answer:
| 98975 |
Edit by Iaroslav Timofeev,
Title:
iMac starts up, chime heard, screen is black, ext. screen no signal
Text:
| Hello. |
| My mac is 20", 2.0 GHz, ATI Radeon HD 2400 XT |
| A1224 (EMC 2133), Model ID: iMac7,1 |
| MA876LL |
| After a lightning strike, screen stopped working. |
| Here are symptomps: |
| mac boots up, chime is heard. fans, hard drives are heard. it is working as you can hear volume change and other button presses, I can also put it to sleep. All in all, fully functional. |
| opened it up: three led are on, the fourth is not. |
| no visual damage, as I can see. all cables seem well connected. |
| tried external display via mini dvi adapter, but I get no signal. unfortunatelly, |
| Now, I am thinking of replacing video card or logic board... |
| I think it is the video card, because, I think, if the logic board would be broken, I would not be able to hear all the sounds and have the mac running. Right? |
| Want to ask what everybody thinks? |
| == Update == |
| Good evening. |
| I want to follow up with this thread. |
| If anyone has the same imac, let me tell you that YOU DO HAVE a separate video card. I opened my imac and found it to be EXACTLY as this guide http://www.ifix |
| describes it. |
| I don't know why machead3 thinks it is soldered. Maybe on others it is soldered, but surely not this one. |
| I replaced my motherboard with a working one, and it did not solve the problem of my black screen, so I returned the motherboard. I will order the video card from ebay and will try to replace it. |
| I hope it works. |
Device:
iMac Intel 2022 EMC 2133 and 2210
Tags:
chime is heard, led 4 is off, no video imac 20" emc 2133 a
Status:
open
Accepted Answer:
98975
Edit by Iaroslav Timofeev,
Title:
iMac starts up, chime heard, screen is black, ext. screen no signal
Text:
Hello.
My mac is 20", 2.0 GHz, ATI Radeon HD 2400 XT
A1224 (EMC 2133), Model ID: iMac7,1
MA876LL
After a lightning strike, screen stopped working.
Here are symptomps:
mac boots up, chime is heard. fans, hard drives are heard. it is working as you can hear volume change and other button presses, I can also put it to sleep. All in all, fully functional.
opened it up: three led are on, the fourth is not.
no visual damage, as I can see. all cables seem well connected.
tried external display via mini dvi adapter, but I get no signal. unfortunatelly, I did not have sharing set up, so I cannot remote connect to it and check screen sharing.
Now, I am thinking of replacing video card or logic board...
I think it is the video card, because, I think, if the logic board would be broken, I would not be able to hear all the sounds and have the mac running. Right?
Want to ask what everybody thinks?
Device:
iMac Intel 2022 EMC 2133 and 2210
Tags:
chime is heard, led 4 is off, no video imac 20" emc 2133 a
Status:
open
Accepted Answer:
| 98975 |
Original post by Iaroslav Timofeev,
Title:
iMac starts up, chime heard, screen is black, ext. screen no signal
Text:
Hello.
My mac is 20", 2.0 GHz, ATI Radeon HD 2400 XT
A1224 (EMC 2133), Model ID: iMac7,1
MA876LL
After a lightning strike, screen stopped working.
Here are symptomps:
mac boots up, chime is heard. fans, hard drives are heard. it is working as you can hear volume change and other button presses, I can also put it to sleep. All in all, fully functional.
opened it up: three led are on, the fourth is not.
no visual damage, as I can see. all cables seem well connected.
tried external display via mini dvi adapter, but I get no signal. unfortunatelly, I did not have sharing set up, so I cannot remote connect to it and check screen sharing.
Now, I am thinking of replacing video card or logic board...
I think it is the video card, because, I think, if the logic board would be broken, I would not be able to hear all the sounds and have the mac running. Right?
Want to ask what everybody thinks?
Device:
iMac Intel 2022 EMC 2133 and 2210
Tags:
chime is heard, led 4 is off, no video imac 20" emc 2133 a
Status:
open