Author Topic: uses of uhp lamp  (Read 2391 times)
marcopete87
Member
*****
Offline

Gender: Male
View Posts
View Gallery

uses of uhp lamp « on: December 30, 2014, 02:31:30 PM » Author: marcopete87
Good evening.
My projector died last month (DLP power regulator chip, unavaiable because out of production), so i decided to took it apart for something that could be useful.
Now i have the original (1300hrs) uhp lamp with electronic ballast.
What can i do with it?
I thought about making an primary and secondary colour projector.
Any ideas?
Logged
BlueHalide
Member
*****
Offline

View Posts
View Gallery

Re: uses of uhp lamp « Reply #1 on: December 30, 2014, 08:29:10 PM » Author: BlueHalide
UHP mercury (HBO) or "Xenon" (metal halide)? lots of manufacturers of small-scale video DLP projectors are using a compact short-arc MH source (similar to the "Xenon" lamps used in automotive headlights) rather than the traditional UHP mercury
Logged
Medved
Member
*****
Offline

Gender: Male
View Posts
View Gallery

Re: uses of uhp lamp « Reply #2 on: December 31, 2014, 02:38:47 AM » Author: Medved
What chip is there?

There is not much you can do with those except again a projector...

The main problem is, it needs well made forced cooling. And to design that, yo would need plenty of experience and quite expensive equipment...
So operating it outside of the original housing with original cooling is practically not possible.
Logged

No more selfballasted c***

marcopete87
Member
*****
Offline

Gender: Male
View Posts
View Gallery

Re: uses of uhp lamp « Reply #3 on: January 03, 2015, 07:21:14 AM » Author: marcopete87
What chip is there?

There is not much you can do with those except again a projector...

The main problem is, it needs well made forced cooling. And to design that, yo would need plenty of experience and quite expensive equipment...
So operating it outside of the original housing with original cooling is practically not possible.

Hi, chip is DAD1000, i think there is something gone wrong inside (shorted pins), overheating.
I kept all projector parts, so i can use original lamp assembly in original housing.
Logged
Medved
Member
*****
Offline

Gender: Male
View Posts
View Gallery

Re: uses of uhp lamp « Reply #4 on: January 03, 2015, 01:55:07 PM » Author: Medved
What about e-bay? They are not as reliable source of such components, but it could be a good try, mainly when the projectors normally cost order of magnitude more...

http://www.ebay.com/sch/i.html?_from=R40|R40&_sacat=0&_nkw=DAD1000&_sop=15

I would really try to repair the projector, mainly when you have already identified the bad chip, I would guess the projector is of a higher value than just the lamp...

And even before that, I would really check, whether it is really the chip and not some soldering failure (whiskers are quite common fault with lead free electronic and they only come with age and temperature cycling), in that case there is high chance, the chip still had survived this)
Logged

No more selfballasted c***

marcopete87
Member
*****
Offline

Gender: Male
View Posts
View Gallery

Re: uses of uhp lamp « Reply #5 on: January 05, 2015, 06:15:09 PM » Author: marcopete87
Thank for the support Medved, but i bought a new projector with better lamp, 3x luminosity, etc... (sometimes i rent my projector, and the older paid itself enought, i'll miss it)
I don't think i'll repair that, because i'm afraid of smt chips, lamp have 1300+hrs on it (it's rated 1500-2000hrs) and i don't know what made to other chips the damaged power regulator.
Before it died, projector begun working bad (images looked like an poor quality jpeg image on some colours at normal contrast ratio), so i suspect something begun going wrong in adc converter.
I got this projector for 60€ as non working used (i repaired replacing the usual power supply cap and an defective switch), a new lamp cost more than 100€.
Logged
Print 
© 2005-2025 Lighting-Gallery.net | SMF 2.0.19 | SMF © 2021, Simple Machines | Terms and Policies