Sharp XG-E3000U projector - Retrofit? HQI?

[will1384]

I just won a Sharp XG-E3000U on ebay for $130

I plan on retrofitting it with a HQI - putting the HQI
on the outside of the unit and a mirror at 45%
were the lamp was - I might need to use a condenser
lens to re focus the light just before the mirror
any ideas - knowing my luck, it wont work

I dont mind cutting, welding, ect ect to get it to work

I could not pass it up - Its got a no DOA warranty,
looks brand new and it does 1024x768 - but it uses
a 370w Metal halide lamp thats $330
and it dont have one

- I wonder if I can use the ballast in the projector
I herd at one time no because its DC to the lamp
and not AC - I only want to use 250w any way tho

I know I will have to fool the projector - into thinking that
every thing is ok also - I just Hope I can

I got drooling over a epson projector at my
college 10 foot by 10 foot DaLite screen and
video so bright you can see it perfect with
all the lights on - 😀

 

[will1384]

Here is some info

It uses 3 x 1,8" LCD TFT Panels - RGB optical shutter method

No. of dots ------- 786,432 dots
Contrast ratio ------- 100:1
Projection lamp ------- 370W Metal halide
Resolution ------- XGA 1024 x 768
Lens ------- 1-1.6 zoom lens
Lamp/Cage ------- PN# BQC-XGE3000U1
Service Manual ------- PN# SM-XGE3000U

I will post lots of pics of whats inside it
When I get it

 

[will1384]

Here is a web page with info and a pic of the projector
http://www.msiprod.com/3000spec.html

there is very litle info on this projector - beyond the basic
system info, on the net - there is a manual in PDF
but dont show any thing worth looking at

I should get it later today - and I will post pics tonight

here are some links to retrofiting a commercial projector
from this forum
Help Retrofitting Comm. Projector

Wtb Used (burnt) Mh Lamp 4 Comm. Projector

Possible alternate lighting for 250w mh LCD projectors

Put a HQI-bulb in a commercialprojector

DIY replacement lamp for projector

I need narrow intense beam, HELP!!!

Panasonic PT-L595U Retrofit

"Diy" Metal halide in commercial projector

Commercial Lamps

what do retail projectors use for lcd any pics of open cases?

Possible bulb to use?

using alternative lighting in projectors

replacing projector bulb


Web link
The Semi-DIY-Projector Project

Just Thought I would put as much info as I can in one place

 

[will1384]

Holly **** its huge

the lamp unit is all most 5 in square
I think I will be able to put the HQI inside
the projector and reuse the reflector - maybe
- the ballast and power suply is one unit -

I think I disabled the ballast - unpluged the a 2 wire
plug near the ballast it hade a choke coil in white
plastic


here is the ballast / power suply

 

[will1384]

here is the lamp unit with a cheap volt meter
next to it to see the size of the lamp

 

[will1384]

there is only 2 connectons to the lamp
and thats for lamp power - there is a door
closed switch - but I find nothing else
I will look some more

 

[will1384]

this top ribbon connector - I think is were the ballast talks to
the projector

 

[will1384]

here is a close up of that cable

 

[will1384]

on that cable I get only one 5v well its 4.85v
and its green its the 3rd one from the top
and right above it is is a blue wire that is 0.0v
all the rest have like some thing like 0.5v or 1v
most are under a volt - any ideas

 

[will1384]

did not find any thing else - it must sence the lamp
power - I did find 3 chips near the ballast side
there all PC123 DIP 4pin Reinforced Insulation Type
Photocoupler - my guess is thats what there using

have a look at this pic - it shows how they react
to the top 7 wire connector disconnected

How would I disable them - jumper the 4.6v to ground??
what resistor to use if I do???

 

[will1384]

the 4.6v goes to the green wire in the 7 pin
connector

 

[will1384]

Here is that 7 pin connector - and what it does powered on,
the power off, I used the OHM meter to find the grounds

the 4.6v goes to the PC123

 

[will1384]

here is what the Photocouplers look like to
the OHM meter with the unit off

- I am not that good at electronics so bare
with me - I think the answer is easy but I
am not seeing it

 

[will1384]

Found this using google groups


---------------------------------------------------------------------------------------
From: David Kuhajda (dkuhajda@******)
Subject: Re: DLP projector lamp cross

View this article only
Newsgroups: sci.electronics.repair
Date: 2000-10-26 20:41:29 PST

Here is what you need to do to test the thing out.

1. Get the schematic as you will have to id the lamp
ok feedback line from the lamp ballast to the system control.

2. Rig the line so that when you turn the thing on the micro
thinks the lamp is on and ok. You will also have to rig the
lamp cover interlock switch.

3. Apply some kind of light source through the hole where
the lamp goes.

I have worked on several of these and LCD projectors and
they all use the same kind of system on the lamp.

All interlock switches must be engaged, some cut out the
power supply directly, some send +5v to the micro.

Micro powers up the fans and looks for the fan ok signal first.

Micro send out a signal that is either +5v or +12v by the time
it gets to the lamp power supply.

Lamp power supply comes up and send lamp on signal back to
the micro.

Lamp power supply also has a sense circuit with timer if the
lamp current is not correct it shuts down and sends lamp
"not ok" signal back ot the micro which shuts unit down, or
it times out and attempts in a few minute to power on again.

If the unit has a separate lamp power supply with plug
connectors, this will make identifying the signals much easier.

David
--------------------------------------------------------------------------------------

 

[will1384]

here is a better power suply pic

 

[will1384]

here is a pic of the PC123s up close

the top is the one that always has 6v and 5v
when the power is on

 

[will1384]

here is the lamp info

I removed the lamp from the lamp unit
there are two sets of numbers

one on the metal plate bolted to the end of the lamp
R1499CE

And one on the lamp
U370W GA0607

Here is a pic

 

[will1384]

I found a place that explaines the Photocouplers,
how there used, what they are ect - not
related to the projector but good info


Photocouplers: Performing Big in Small Spaces

 

[will1384]

I removed the High volatage power parts - power amps
coil and transformer - thats all - just to keep from getting
zaped

here is the bottom of the PCB board

you can see the Photocouplers up at top

and see were they lead to the connector
"EB" at the lower left side

 

[will1384]

I found the service manual for the xg-e3500 and got it off ebay
and I know were to get the one for my xg-e3000 -
the power supply may be bad - so I am getting the service
manual - I have tried all the tricks - no luck

even if I dont get it to work I got a real nice zoom lens