CurtPalme.com Home Theater Forum

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Well its started dimming on its own anyway....

My CRT monitor died earlier in the week and I haven't had a chance to open it up and attempt repair, so ive been using this Epson as a monitor...

Its bright as hell on this 72" screen though.... Blinding even on low power. Even the black is blindingly bright. Laughing

CIR Engineering · Posted: Sat Jul 06, 2013 8:49 pm Post subject:

If the digital suddenly started getting a lot dimmer there is probably a crack in the bulb and it is degassing. Pull the bulb and look for a crack.

craigr

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Its actually staying full brightness mostly, just every few minutes its dims for half a second, ill open it up and check it out.

CIR Engineering · Posted: Sun Jul 07, 2013 4:01 pm Post subject:

Ah, than I doubt the bulb is cracked. Could be a ballast.

craigr

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Yeah mate if the bulb was cracked id say itd stay dull or simply not strike at all, and would probably be all silver and black inside. Could be a lot of things though, its at least 7 years old, has done around 1,400 hours mostly on low power, which is 1,650 lumens.

The old Mitsubishi SEU-1 I had did 3,600 hours on its original bulb... Was unusable by 3,000 in my opinion, but id sold it to a friend by 1,200 hours.