Epson Modded For Alternate Lamp Sources

crazifunguy · 15th December 2008, 10:54 PM

This is my first time posting here. I have seen many refrences to here from lumenlab. I have some interesting projects in the works with Epson 3LCD projectors and alternate lamp sources.

The current model - Epson PowerLite 73c

The ballast was pretty easy to bypass after some poking around with a multimeter.

***For those of you that are having trouble bypassing the ballast on any projector***

1 - Find the group of wires that come from the ballast to the main board.
2 - Power the projector on with NO lamp.
3 - Measure the voltages on all the wires connecting to the main board.
4 - Find the wire that is close to +3V
5 - Insert lamp (If you have one) and power on. Measure the voltage of this wire again. The voltage should be around 0V
6 - Connect the spot on the board where that wire connected to a ground on the main board.

This will bypass the lamps for 90% of projectors. It has worked for me on about 8 different models.

Here are some pictures of the inside and of the wire added ot bypass the ballast.

More to come as I test new lamp sources. LED and HID will both be tried. HID worked well on a DLP that I modded.

victor-eyd · 21st December 2008, 11:16 PM

I'm very interested in seeing more pics. Thanks

Victor

crazifunguy · 22nd December 2008, 04:06 AM

I am currently looking into some HID auto lamp setups that will give close to 8000 lumens at the lamp. More to come after I get a lamp and ballast. Good news is the both of them should be under $120

victor-eyd · 22nd December 2008, 08:14 AM

Very cool. I have an Eiki LCX-990 that has a dead bulb which I'm very interested in modding.

Victor

crazifunguy · 22nd December 2008, 08:42 AM

Have you bypassed the ballast?

victor-eyd · 22nd December 2008, 03:55 PM

Not yet. I have to open it up first. Also, i'm pretty much a newb with multimeters so i might need you to walk me thru it

Victor

crazifunguy · 22nd December 2008, 09:07 PM

Open it up and take some pictures

victor-eyd · 23rd December 2008, 05:11 PM

I should have some pics after xmas- probably by the weekend

Thanks for helping out and merry xmas

victor-eyd · 30th December 2008, 06:09 AM

Just got myself a multimeter so I'll try to pop open the hood by next week

Victor

victor-eyd · 14th January 2009, 06:09 AM

Okay pictures-

Where to start??

Victor

15th December 2008, 10:54 PM	#1
crazifunguy diyAudio Member Join Date: Aug 2008	Epson Modded For Alternate Lamp Sources This is my first time posting here. I have seen many refrences to here from lumenlab. I have some interesting projects in the works with Epson 3LCD projectors and alternate lamp sources. The current model - Epson PowerLite 73c The ballast was pretty easy to bypass after some poking around with a multimeter. *For those of you that are having trouble bypassing the ballast on any projector* 1 - Find the group of wires that come from the ballast to the main board. 2 - Power the projector on with NO lamp. 3 - Measure the voltages on all the wires connecting to the main board. 4 - Find the wire that is close to +3V 5 - Insert lamp (If you have one) and power on. Measure the voltage of this wire again. The voltage should be around 0V 6 - Connect the spot on the board where that wire connected to a ground on the main board. This will bypass the lamps for 90% of projectors. It has worked for me on about 8 different models. Here are some pictures of the inside and of the wire added ot bypass the ballast. More to come as I test new lamp sources. LED and HID will both be tried. HID worked well on a DLP that I modded.

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21st December 2008, 11:16 PM	#2
victor-eyd diyAudio Member Join Date: Jul 2004 Location: Hayward, CA	I'm very interested in seeing more pics. Thanks Victor

22nd December 2008, 04:06 AM	#3
crazifunguy diyAudio Member Join Date: Aug 2008	I am currently looking into some HID auto lamp setups that will give close to 8000 lumens at the lamp. More to come after I get a lamp and ballast. Good news is the both of them should be under $120

22nd December 2008, 08:14 AM	#4
victor-eyd diyAudio Member Join Date: Jul 2004 Location: Hayward, CA	Very cool. I have an Eiki LCX-990 that has a dead bulb which I'm very interested in modding. Victor

22nd December 2008, 08:42 AM	#5
crazifunguy diyAudio Member Join Date: Aug 2008	Have you bypassed the ballast?

22nd December 2008, 03:55 PM	#6
victor-eyd diyAudio Member Join Date: Jul 2004 Location: Hayward, CA	Not yet. I have to open it up first. Also, i'm pretty much a newb with multimeters so i might need you to walk me thru it Victor

22nd December 2008, 09:07 PM	#7
crazifunguy diyAudio Member Join Date: Aug 2008	Open it up and take some pictures

23rd December 2008, 05:11 PM	#8
victor-eyd diyAudio Member Join Date: Jul 2004 Location: Hayward, CA	I should have some pics after xmas- probably by the weekend Thanks for helping out and merry xmas

30th December 2008, 06:09 AM	#9
victor-eyd diyAudio Member Join Date: Jul 2004 Location: Hayward, CA	Just got myself a multimeter so I'll try to pop open the hood by next week Victor

14th January 2009, 06:09 AM	#10
victor-eyd diyAudio Member Join Date: Jul 2004 Location: Hayward, CA	Okay pictures- Where to start?? Victor

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