[TechAssist] Re: Light Engine Problems
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 2 Apr 2004 09:39:58 -0500
Should have done the green too, you will be going back.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Jeff F" <jlfonz@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, April 02, 2004 12:34 AM
Subject: [TechAssist] Re: Light Engine Problems
> Sony: Don't need lamp upgrades anymore---that is history. Replace the
bulb
> with the new number (dont have it here) Phillips bulbs go intermittant.
> Replace with osram bulb--cures all intermittant start-up problems
>
> Samsung. Very easy to remove the engine to work on it. Haven't relaced a
> whole engine----yet. I have replaced the dmd, main digital boards and
many
> color wheels.
>
> Hitachi: Stinks--have to remove the whole top of the set to remove the
> light engine. The picture on these are very nice though.
>
> BTW there was a conservation on replacing the fluid in the NAP tv's. Did
> two sets in the last two days (one tube each---blue of course) Took me
> about an hour each in the home, includinf convergence.
>
> TV Doctor
> Avalon, Wi
> ----- Original Message -----
> From: "Damon" <damon101@xxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, April 01, 2004 7:00 AM
> Subject: [TechAssist] Light Engine Problems
>
>
> > 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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