UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

lyndhurst25 · 27th Dec 2017, 7:17 pm

Hi.

My dad's trusty computer, a 1999 Apple iMac G3, screen has developed a fault. The problem occurs displaying black text or lines against a white background; the left hand edge of characters or vertical black areas have a variable amount of red "bleeding" across from left to right where the black should be. Fine vertical black lines appear as red lines, but horizontal lines are unaffected. The whole screen area seems to be similarly affected. Turning the brightness down so low as to make the screen virtually unusable does cure the issue however. Unfortunately, I have no experience in repairing or adjusting CRT displays (but I am aware of the dangers involved). Does this sound like an easy repair on this machine?

Thanks in advance for any advice given.

27th Dec 2017, 7:17 pm	#1
lyndhurst25 Diode Join Date: Dec 2017 Location: Liverpool, Merseyside, UK. Posts: 1	iMac G3 CRT display problem Hi. My dad's trusty computer, a 1999 Apple iMac G3, screen has developed a fault. The problem occurs displaying black text or lines against a white background; the left hand edge of characters or vertical black areas have a variable amount of red "bleeding" across from left to right where the black should be. Fine vertical black lines appear as red lines, but horizontal lines are unaffected. The whole screen area seems to be similarly affected. Turning the brightness down so low as to make the screen virtually unusable does cure the issue however. Unfortunately, I have no experience in repairing or adjusting CRT displays (but I am aware of the dangers involved). Does this sound like an easy repair on this machine? Thanks in advance for any advice given.