DIY Video Projector - Page 21

Myren · 5th November 2001, 07:42 AM

damn. I just called viewsonic:

"hi. I've got a really weird question I'm hoping you can help me with."
"yes?"
"Is there anyway I can see the inside of a viewsonic vg150? spec sheet, or real deal?"
"um.... I dont think so...."
"nothing I could see to give me an idea?"
"I could have an engineer call you tomorrow."
"excellent! that would be perfect!"
"ok..." [exchange contact info]
"cant thank you enough"
"sure, no problem"

Waiting for call from engineer tomorrow who can hopefully give me some pointers on dissecting the vg150 I'm planning on buying.

projectors going to be costing more than I thought. might actually have to spend real money on this. curses. might take a bit longer to get than I had hoped because of this, having to shop around now. I'm still pushing thanksgiving, but it might take a little bit longer. %@$%#@. double !%@#$%@.

vdi_nenna · 5th November 2001, 07:04 PM

Myren, I don't think they are glued. If they are, it gives them no chance to replace burned out bulbs. I have taken apart a 5.6" and a 8.4", both had screws to remove driver/inverter boards. Be careful w/ inverters, they can kill.

eac74 · 6th November 2001, 10:41 AM

The screen covers can be removed to replace the bulbs. The problem with the screen i have is that the connections from the control board mounted on the back of the screen to the lcd panel itself are very short and there doesnt seem to be any way to disconnect them but i am still looking to find a way of extending a short ribbon cable so that i can fold out the controller from the back of the panel.

eac74

vdi_nenna · 6th November 2001, 02:20 PM

I had the short ribbon problem with the first screen I used. I found a ribbon to extend the connection, but it was impossible to solder. What you need to use is...I think...conductive epoxy? I found the ribbons in the digi-key catalog. I didn't find out about the adhesive until I gave up on the screen.

vdi_nenna · 6th November 2001, 03:31 PM

Here's a range of Opaque projector from $40 to$200

This gives a lot of promise.

http://www.khue.com/dept/misc/tracjr.htm

Fiat1 · 7th November 2001, 02:24 AM

The instruction manual for my LCD projection pannel says you can only use it with transmisive type projectors so these type of projectors you are proposing are no good, I may seem like some what of an pessimist but I do not want people to waste their money. It also sya for best results use at least a 450 watt globe with adequet cooling.

vdi_nenna · 7th November 2001, 02:54 AM

You want it to be transmissive as opposed to reflective.

Light transmits through the panel. The panels themselves do not create light on their own, e.i., the pixels do not create light, they pass it.

Anything that uses a cold cathode light can be used for a projector panel.

faidzir · 7th November 2001, 05:32 AM

hi..

i needs help to built my own Opaque projector. i know nothing about this projector. If u have the diagram hope send to me.

tq

Fiat1 · 7th November 2001, 09:16 AM

Sorry I thought these projectors yuo are talking about were different, still need a brighter globe!

Fiat1 · 7th November 2001, 09:19 AM

Just one last thing I forgot to say is that the new game boy advance screen have fairly hight res and are small, they are also resonably cheap so you may be able to hack into these are use them! Just a thought

7th November 2001, 02:24 AM	#206
Fiat1 diyAudio Member Join Date: Oct 2001	Projector The instruction manual for my LCD projection pannel says you can only use it with transmisive type projectors so these type of projectors you are proposing are no good, I may seem like some what of an pessimist but I do not want people to waste their money. It also sya for best results use at least a 450 watt globe with adequet cooling.

7th November 2001, 02:54 AM	#207
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA	Transmissive it is... You want it to be transmissive as opposed to reflective. Light transmits through the panel. The panels themselves do not create light on their own, e.i., the pixels do not create light, they pass it. Anything that uses a cold cathode light can be used for a projector panel.

7th November 2001, 05:32 AM	#208
faidzir diyAudio Member Join Date: Oct 2001	Opaque projector hi.. i needs help to built my own Opaque projector. i know nothing about this projector. If u have the diagram hope send to me. tq

7th November 2001, 09:19 AM	#210
Fiat1 diyAudio Member Join Date: Oct 2001	GBA Just one last thing I forgot to say is that the new game boy advance screen have fairly hight res and are small, they are also resonably cheap so you may be able to hack into these are use them! Just a thought

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5th November 2001, 07:42 AM	#201
Myren diyAudio Member Join Date: Oct 2001 Location: Maryland	damn. I just called viewsonic: "hi. I've got a really weird question I'm hoping you can help me with." "yes?" "Is there anyway I can see the inside of a viewsonic vg150? spec sheet, or real deal?" "um.... I dont think so...." "nothing I could see to give me an idea?" "I could have an engineer call you tomorrow." "excellent! that would be perfect!" "ok..." [exchange contact info] "cant thank you enough" "sure, no problem" Waiting for call from engineer tomorrow who can hopefully give me some pointers on dissecting the vg150 I'm planning on buying. projectors going to be costing more than I thought. might actually have to spend real money on this. curses. might take a bit longer to get than I had hoped because of this, having to shop around now. I'm still pushing thanksgiving, but it might take a little bit longer. %@$%#@. double !%@#$%@.

5th November 2001, 07:04 PM	#202
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA	Myren, I don't think they are glued. If they are, it gives them no chance to replace burned out bulbs. I have taken apart a 5.6" and a 8.4", both had screws to remove driver/inverter boards. Be careful w/ inverters, they can kill.

6th November 2001, 10:41 AM	#203
eac74 diyAudio Member Join Date: Oct 2001 Location: Fort William, Scotland	The screen covers can be removed to replace the bulbs. The problem with the screen i have is that the connections from the control board mounted on the back of the screen to the lcd panel itself are very short and there doesnt seem to be any way to disconnect them but i am still looking to find a way of extending a short ribbon cable so that i can fold out the controller from the back of the panel. eac74

6th November 2001, 02:20 PM	#204
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA	I had the short ribbon problem with the first screen I used. I found a ribbon to extend the connection, but it was impossible to solder. What you need to use is...I think...conductive epoxy? I found the ribbons in the digi-key catalog. I didn't find out about the adhesive until I gave up on the screen.

6th November 2001, 03:31 PM	#205
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA	Here's a range of Opaque projector from $40 to$200 This gives a lot of promise. http://www.khue.com/dept/misc/tracjr.htm

7th November 2001, 09:16 AM	#209
Fiat1 diyAudio Member Join Date: Oct 2001	Sorry I thought these projectors yuo are talking about were different, still need a brighter globe!

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