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View Full Version : Help! iMac G4 screen very dim.




jaxstate
Jul 25, 2006, 05:14 AM
Well, I'm not sure if my LCD is gone or that some type of other LED has went out on the LCD. When I look at the screen, I can see the desktop,menu bar, and dock just fine, proplem is, it's very dim, I mean very very dim. I was able to naviagate my way to the display options, and brightness was all the way up. I tried moving the brightness up and down, but couldnt see a difference. I'm wondering if there is a seperate LED that the brightness control uses. Any info wil help, and I'll start doing google searches too.



dejo
Jul 25, 2006, 05:24 AM
Sounds to me like your backlight is shot. The LCD part only determines the color. It is up to the backlight to supply the brightness.

Chundles
Jul 25, 2006, 05:25 AM
I think your screen may be on it's way out. If not the screen then the light (it's not an LED - LED-lit LCD screens are only just coming out and they cost a fortune) may be on its last legs.

ScubaDuc
Jul 25, 2006, 06:12 AM
As others have posted, it is likely you need a new backlight. Did u notice any flickering with the monitor before it rendered its soul? That is what mine did...flickered then died...about one month before applecare runned out....

And, no! I wasn't lucky...They lost the monitor and it took 7 weeks to get a replacement :mad:

jaxstate
Jul 25, 2006, 06:16 AM
I did some google searches, and it seems that the inverter board going bad has cause this for others. I'll go to my apple reseller to see if thy keep parts handy. I'm way past Applecare so i'll be doing this myself.
As others have posted, it is likely you need a new backlight. Did u notice any flickering with the monitor before it rendered its soul? That is what mine did...flickered then died...about one month before applecare runned out....

And, no! I wasn't lucky...They lost the monitor and it took 7 weeks to get a replacement :mad:

dmw007
Jul 25, 2006, 06:25 AM
Sounds to me like your backlight is shot. The LCD part only determines the color. It is up to the backlight to supply the brightness.

Same here, that sounds like the backlight for the LCD is dying/dead. :o

REDSRT4
Jul 25, 2006, 11:17 AM
had similar issue on an old PC LCD from viewsonic, the lcd eventually got dimmer and dimmer and finally went out, lucky it had standard 3 year warranty and viewsonic swapped it out