[TechAssist] Light Engine Problems
- From: "Damon" <damon101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 1 Apr 2004 08:00:27 -0500
The big problem I'm having besides the light engine's power supply or bulb
startup is Dust in an unsealed optical section....also, just found some
arbitary light leakage from the engine bouncing into the viewing area, due
to the fact that the plastic housing around the engine's final lens wasn't
sealed well. Get out the electrician's tape....
Should I name names???
Sony: Lamp Driver board upgrades--Easy to do in most cases. Engine
replacement is easier than most, but requires careful cable removal and
marking
Philips: Dust....and the leaky light problem. Replacing the engine is
extremely Major Work, as you have to remove the top.
Pansonic: Dust. Easy to deal with, once you take it apart one time. All work
done from the front of the projo. Don't know about engine removal yet.
Samsung and Hitachi: Don't know...
Tell me your experiences.....
Damon Brunger
----- Original Message -----
From: "Jeff F" <jlfonz@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, March 31, 2004 8:29 PM
Subject: [TechAssist] Re: **** Notice!!!!!
| Light engines can have bad DLP or LCD components. Bad driver boards are
the
| more common problems. Fixing these would probably be a pain as they have
| many large surface mount ICs on them. Some as big as 500 pins.
|
| TV Doctor
| Avalon, Wi
|
| ----- Original Message -----
| From: "J Silverman" <greentron@xxxxxxx>
| To: <techassist@xxxxxxxxxxxxx>
| Sent: Wednesday, March 31, 2004 1:40 PM
| Subject: [TechAssist] Re: **** Notice!!!!!
|
|
| > What goes wrong with the light engine that requires replacement of the
| unit?
| > Or are you referring to the lamp/ballast assembly?
| > I always wanted to make a spoof commercial where you describe a muscle
car
| > performance but the picture just shows it sitting in gridlock on the
| > freeway. Or maybe one where you show it navigating sharp turns at high
| speed
| > on a cliffside road and then just after it goes out of sight, a ball of
| > flame rising into the air and the sound of an explosion.
| > Jerry Silverman
| > Greentron Inc
| > 4 Newland Ave
| > Greenville SC 29609
| > 864 232 3889
| > Fax 271 2080
| > mailto:greentron@xxxxxxx
| > ----- Original Message -----
| > From: "Jeff F" <jlfonz@xxxxxxxxx>
| > To: <techassist@xxxxxxxxxxxxx>
| > Sent: Wednesday, March 31, 2004 12:38 AM
| > Subject: [TechAssist] Re: **** Notice!!!!!
| >
| >
| > > I just replaced a light engine in a sony 60 something inch LCD rear
XBR.
| > > Took me a grand total of 25 minutes (if that) open to close. Makes me
| > > wonder what kind of intelligence the next wave of techs will need?
| Light
| > > engines for the most part are gonna be swap outs in the future (as
they
| > are
| > > now).
| > > FYI. RCA is coming out with a 7" deep rear projo DLP soon (I
think
| > they
| > > said 60") Weighs less than 100 pounds--hangs on the wall and will
retail
| > for
| > > around $2000 with built in HD tuner. The RCA light engines are pretty
| easy
| > > too. The hitachis are the big pains in the butts--gotta take off the
| whole
| > > top of the unit.
|
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