Question about Sony VPH-G90U Remanufactured CRT Graphics Projector (VPH G90U, VPHG90U, VPH-G90, VPH G90, VPHG90) Multimedia Projector
When you look into the red gun you can see a shimmer or fuzzynes going on and the image on a test pattern looks like its slightly out of focus , but when you put a signal onto it either composite or rgb the red goes way out of focus and the shimmering goes crazy like the signal path is going across high voltage of some sort thanks for any help.
SOURCE: Picture - Flickers/Shimmers
Definatly has a problem it sounds like my freind. Could be a problem with the abl circuit, the picture tube or a voltage regulation problem. Good Luck PS Please dont forget to rate this thread.
Posted on Oct 23, 2006
SOURCE: Philips 42" Plasma
It's likely the upper Y-module but both the upper and lower could be having problems - just nothing noticeable in the lower half of the screen as yet, is my guess..
This is not a job for a layman and you'll need some fairly sophisticated equipment to troubleshoot the boards, not to mention being able to read schematics and understand waveforms. Hence, my best advice would be to take it in to a reputable shop and have it estimated...
If you need some help locating a shop near you try the NESDA locator - http://www.nesda.com/locator/state_search.php
Posted on Nov 11, 2007
Wow, I've been an installer and salesman in the consumer electronics industry since before the first plasma TV came out (Phillips 42" and Fujitsu 42" in 1996) and this is the first time I've ever seen that kind of an answer. "Take this to a repairman and he can add more plasma" what is the repairman a doctor. If it were that easy no one would ever have to upgrade or replace their screens. You can't add more plasma to a screen, if you don't believe me call Samsung and ask them for yourself like I did. I was actually so dumbfounded by your answer that I called a tech friend of mine at Samsung and asked him, his answer; "does this guy work for you?" I told him no and he said, "I was going to tell you to fire him because that's the dumbest thing I've ever heard anyone tell a customer".
What you need to do is take you plasma TV to an AUTHORIZED Samsung dealer/repair shop and inquire about the hazing/ghosting problem with them. Follow this link to find an authorized repair center near you: http://www.samsung.com/us/support/repairlocation/serviceLocator.do?group=&type=&subtype=&model_nm=HP-R4262&dType=D&mType=UM&vType=R&prd_ia_cd=&acc_ia_fl=&disp_nm=HP-R4262
Posted on Jun 19, 2008
SOURCE: shimmer and bands
i experienced a tainted vertical black lines on the boths sides of my lcd screen. There was no scratch or whatsoever that could be the reason why thsi balck colored vertical lines to spread. Hope you can help me solve this problem. Thank you..
Posted on Oct 28, 2008
SOURCE: Mouse no longer works
Try this article:
Let me know if the issue still persists. If it is resolved, kindly rate the solution.
Posted on Jun 26, 2009
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