Hi all. I need help with my infocus lp730 with no lamp(I cant find schematics)
I have done this tests:
with the multimeter I have tested voltages between the 3 wires(red-white-black(ground)) in the photo, with the vpr on, before the discharge and after:
![URL]](https://www.diyaudio.com/forums/[URL=http://img690.imageshack.us/i/img20101124122620.jpg/][IMGDEAD]http://img690.imageshack.us/img690/4202/img20101124122620.jpg[/IMGDEAD][/URL]%20%20Uploaded%20with%20[URL=http://imageshack.us]ImageShack.us[/URL])
BEFORE AFTER
white-black 1,28V 1,28V
red-black 0V 1,07V
red-white 1,28V 0,18V
Then, I have tried to shortcircuit:
red-white ---> vpr runs and I can hear the discharge sound
white-black---> vpr runs and I can hear the discharge sound
red-black----> vpr runs but I can't hear the discharge sound
In all these 3 shortcircuits I have tried to use a torch to illuminate within the lamp case but the vpr didn't show anything.(I also tried to look into the optics but nothing)
Can you help me?
I have done this tests:
with the multimeter I have tested voltages between the 3 wires(red-white-black(ground)) in the photo, with the vpr on, before the discharge and after:
BEFORE AFTER
white-black 1,28V 1,28V
red-black 0V 1,07V
red-white 1,28V 0,18V
Then, I have tried to shortcircuit:
red-white ---> vpr runs and I can hear the discharge sound
white-black---> vpr runs and I can hear the discharge sound
red-black----> vpr runs but I can't hear the discharge sound
In all these 3 shortcircuits I have tried to use a torch to illuminate within the lamp case but the vpr didn't show anything.(I also tried to look into the optics but nothing)
Can you help me?
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