I got my new lamp. It is for commercial projection use. people use it to replace the

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#1,481
#1,483
yes! american dollars , 60+5$
are you sure there is no wire entwine the bulb bar? not like my pic?
 

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#1,488
#1,489
Two questions:
1. How safe are these replacement bulbs? (Fire safety is the issue.)
2. Has anybody tried to put in a different kind of bulb (e.g., a cheap HID bulb) in a PJ by using an external ballast (e.g., attached through holes drilled in the case)?

I'm planning for the inevitable burnout in my InFocus 4805 and don't want to pay $300.
 
#1,490
Does anybody know how to trick the ballast into thinking it has a lamp in it. I have purchased a sanyo plc xf20 that requires four lamps. The unit came without any lamps and I would like to see if the lcds work by shining a flashlight thru just to see if I can bring up an image. This unit won't run without the lamps. I also want to install my own light source eventually. Any help is greatly appreciated!
 
#1,491
Update: Thanks to this website for all the people that post I was able to bypass the ballasts and test the projector. I can't find any spent or dead light modules for this unit that I can relamp myself. This unit normally holds four 610 284 4627 lamps. ymh, do you have anything that will work in this unit, or will I have to totally retrofit a new light source?
 
#1,494
Hi

PHILIPS LC 4341 230v
Lamp UHP 200 watt

Can i replace lamp with another type?

Or can i trick the ballast into thinking it has a lamp in it?
I tried and tried, there is not light detector etc. Projector stay black if there is not lamp installed/ power connected to ballast.
3 wires goes to the mainboard, black, red, and yellow.

Nice if lamp can be replaced with another type 🙂
 
#1,496
jarkkoh said:
Hi

PHILIPS LC 4341 230v
Lamp UHP 200 watt

Can i replace lamp with another type?

Or can i trick the ballast into thinking it has a lamp in it?
I tried and tried, there is not light detector etc. Projector stay black if there is not lamp installed/ power connected to ballast.
3 wires goes to the mainboard, black, red, and yellow.

Nice if lamp can be replaced with another type 🙂
Click to expand...


jarkkoh: I believe you can short the outside wires on the three wire harness that runs to the board from each ballast. I actually used a staple to short the wires together. The projector will run. On my sanyo plc xf20 the ballast will still fire, the "lamp light" will come on, and the ballast shut off. The green ready light stays on and I am able to use the projector without any lamps. Hope this helps.
 
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