Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
|
| Posted: Tue Nov 20, 2007 4:49 pm Post subject: Someone to do a Marquee s/call for me in Sacramento? |
|
|
I sold a Marquee 8500 back about 18 months ago, and once installed, the customer told me that the that intermittently the picture would go to a yellow tint, indicating that the blue tube went low in output. The unit is driven by a DVDO Ultra doubler.
What makes this problem a bit unusual is that the customer says that the stepped internal gray scale pattern remains perfectly b/w, indicating that the problem is either in the VIM or in the source.
I've sent the customer a second DVDO doubler and short SVGA to 5 BNC cable to eliminate the source as a cause of the problem, a VIM, a video output/neck board 'just in case', and the problem persists. I believe we swapped G2 wires in case the G2 output of the HVPS drops, but that should affect the internal test patterns as well as the source material. So that's the confusing part.
Is there anyone in the Sacramento area that can assist here?
I'm wondering if the gray scale pattern isn't going yellowish as well, but according to the customer, it doesn't.
Let me know!
Thanks!
Curt
|
|
