This is the first DLP set I've worked on, the bulb is bad and an original
lamp module is about $300. But I've found a source for just the bulb itself,
and I'm wondering if it's feasible to attempt replacing it. I'm told you're
only supposed to replace the entire module.
Thanks.

On Jul 23, 3:01*pm, "Chris F." wrote:
* This is the first DLP set I've worked on, the bulb is bad and an original
lamp module is about $300. But I've found a source for just the bulb itself,
and I'm wondering if it's feasible to attempt replacing it. I'm told you're
only supposed to replace the entire module.
* Thanks.

I replaced the entire assembly on our Samsung DLP set with a lamp from
eBay. $120 total. We also replaced just the lamp element in Sony rear
projection sets. The Sony housing comes apart easily. We weren't sure
if fingerprints are a problem on the lamp so we didn't touch it at
all. So far we've done 3 Sony sets and all work fine. BTW we are a
video duplication facility so TVs are _not_ our forte but we know a
lot about video tape recorders. The bare lamps came from Mat
Electronics for $110 each.

G²

In article , wrote:
On Jul 23, 3:01=A0pm, "Chris F." wrote:
=A0 This is the first DLP set I've worked on, the bulb is bad and an orig=
inal
lamp module is about $300. But I've found a source for just the bulb itse=
lf,
and I'm wondering if it's feasible to attempt replacing it. I'm told you'=
re
only supposed to replace the entire module.
=A0 Thanks.

I replaced the entire assembly on our Samsung DLP set with a lamp from
eBay. $120 total. We also replaced just the lamp element in Sony rear
projection sets. The Sony housing comes apart easily. We weren't sure
if fingerprints are a problem on the lamp so we didn't touch it at
all. So far we've done 3 Sony sets and all work fine. BTW we are a
video duplication facility so TVs are _not_ our forte but we know a
lot about video tape recorders. The bare lamps came from Mat
Electronics for $110 each.

G=B2
You should never touch the bulbs on projectors or slide projectors and the
like. The oils on your fingers can crack the bulb once heat is applied. Always
wear a pair of cloth gloves.

In article ,
GMAN wrote:
You should never touch the bulbs on projectors or slide projectors and
the like. The oils on your fingers can crack the bulb once heat is
applied. Always wear a pair of cloth gloves.

I hear this everywhere but work in TV production. And you never see a
sparks take that precaution when replacing bubbles in production lighting
- regardless of type. I suppose they simply don't care - but I'd suppose
again they don't want to do it more frequently than necessary.

--
*Wrinkled was not one of the things I wanted to be when I grew up

Dave Plowman London SW
To e-mail, change noise into sound.

Chris F. wrote:

This is the first DLP set I've worked on, the bulb is bad and an original
lamp module is about $300. But I've found a source for just the bulb itself,
and I'm wondering if it's feasible to attempt replacing it. I'm told you're
only supposed to replace the entire module.


I just did a bulb-only replacement on a Mits 73827, $99 vs. $250, works
fine.

Like the others have pointed out, because of the heat the bulb operates at,
you just can't handle it by bare hands. The place I ordered mine from even
came with a glove.

As far as "doing it", on the Mits the $250 assembly pops out of the back of
the set, two screws to get the door off, 3 retainer screws to detach the
module. Once the module/housing is on the bench/table, it's two screws to
separate the housing, four screws (5 depending on the power connector) to
release the bulb and thats about it. New bulb in, reverse the above.

The bulb appears to be OEM (Osram) and is no different from the original. If
it's counterfeit, it's a pretty good one. Why they charge an extra $150 for
the housing is beyond me, it's just a plastic shell that holds the bulb, no
other electronic componets.

-bruce

In article , Bruce Esquibel wrote:
Chris F. wrote:

This is the first DLP set I've worked on, the bulb is bad and an original
lamp module is about $300. But I've found a source for just the bulb itself,
and I'm wondering if it's feasible to attempt replacing it. I'm told you're
only supposed to replace the entire module.


I just did a bulb-only replacement on a Mits 73827, $99 vs. $250, works
fine.

Like the others have pointed out, because of the heat the bulb operates at,
you just can't handle it by bare hands. The place I ordered mine from even
came with a glove.

As far as "doing it", on the Mits the $250 assembly pops out of the back of
the set, two screws to get the door off, 3 retainer screws to detach the
module. Once the module/housing is on the bench/table, it's two screws to
separate the housing, four screws (5 depending on the power connector) to
release the bulb and thats about it. New bulb in, reverse the above.

The bulb appears to be OEM (Osram) and is no different from the original. If
it's counterfeit, it's a pretty good one. Why they charge an extra $150 for
the housing is beyond me, it's just a plastic shell that holds the bulb, no
other electronic componets.

I got a projector with a bad bulb supply. Can I get a picture out of this projector
with a 100 watt halogen or less ?? Doesn't have to be perfect.

greg

On Jul 24, 6:23*am, (GregS) wrote:
I got a projector with a bad bulb supply. Can I get a picture out
of this projector
with a 100 watt halogen or less ?? Doesn't have to be perfect.

greg

It will be incredibly dim if you can see it at all. I read where a
Samsung DLP ballast could be had for around $30. Have you checked the
price on your unit?

G²

In article , wrote:
On Jul 24, 6:23=A0am, (GregS) wrote:
I got a projector with a bad bulb supply. Can I get a picture out
of this projector
with a 100 watt halogen or less ?? Doesn't have to be perfect.

greg

It will be incredibly dim if you can see it at all. I read where a
Samsung DLP ballast could be had for around $30. Have you checked the
price on your unit?

G=B2

The lamp power is on one board. There is a module on the board but I can't locate
that separate thing to replace. Its an Osram supply, and I am thinking its not
worth replacing. I can't be sure the lamp is good or bad.

greg

In article , (GregS) wrote:
In article ,
wrote:
On Jul 24, 6:23=A0am, (GregS) wrote:
I got a projector with a bad bulb supply. Can I get a picture out
of this projector
with a 100 watt halogen or less ?? Doesn't have to be perfect.

greg

It will be incredibly dim if you can see it at all. I read where a
Samsung DLP ballast could be had for around $30. Have you checked the
price on your unit?

G=B2

The lamp power is on one board. There is a module on the board but I can't
locate
that separate thing to replace. Its an Osram supply, and I am thinking its not
worth replacing. I can't be sure the lamp is good or bad.

My old Videobeam by Henery Kloss was also incredibly dim. It used a 6 foot reflective screen.

greg

Bruce Esquibel wrote:

Chris F. wrote:


This is the first DLP set I've worked on, the bulb is bad and an original
lamp module is about $300. But I've found a source for just the bulb itself,
and I'm wondering if it's feasible to attempt replacing it. I'm told you're
only supposed to replace the entire module.



I just did a bulb-only replacement on a Mits 73827, $99 vs. $250, works
fine.

Like the others have pointed out, because of the heat the bulb operates at,
you just can't handle it by bare hands. The place I ordered mine from even
came with a glove.

As far as "doing it", on the Mits the $250 assembly pops out of the back of
the set, two screws to get the door off, 3 retainer screws to detach the
module. Once the module/housing is on the bench/table, it's two screws to
separate the housing, four screws (5 depending on the power connector) to
release the bulb and thats about it. New bulb in, reverse the above.

The bulb appears to be OEM (Osram) and is no different from the original. If
it's counterfeit, it's a pretty good one. Why they charge an extra $150 for
the housing is beyond me, it's just a plastic shell that holds the bulb, no
other electronic componets.

-bruce



you're lucky, my RCA 61" cost $420 to replace that unit and for the
glove, that's to keep your greasy hands off the lamp other wise, you can
distort the lamp when heated up and pop it.


http://webpages.charter.net/jamie_5"

If you are going to buy a bulb only you need to get it from someone who
knows these things fairly well .
The ballast inside the tv sets are basically 120 watt and 100 watt and
it should match the bulb . Several websites explain this .

You have short and long arc bulbs also and need to get the right one .

Best not to touch the bulb . I just use a clean towel .

Some websites went into detail about Toshibas big problem with failing
bulbs . They suggest replacing the ballast and bulb away from the
Toshiba originals to the Ostran brand .
I did that and its going well .

Ken, what model set and what lamp & ballast are you using?

Leonard

"Ken G." wrote in message
...
If you are going to buy a bulb only you need to get it from someone who
knows these things fairly well .
The ballast inside the tv sets are basically 120 watt and 100 watt and
it should match the bulb . Several websites explain this .

You have short and long arc bulbs also and need to get the right one .

Best not to touch the bulb . I just use a clean towel .

Some websites went into detail about Toshibas big problem with failing
bulbs . They suggest replacing the ballast and bulb away from the
Toshiba originals to the Ostran brand .
I did that and its going well .