I'm in need of some help with my 940HD.
I've been a proud owner since 2007. Until recently she's been a phenomenal performer. For some months however, it's been having problems displaying certain static images correctly (on screen menus mostly). After two service repairs the problem remains so I'm hoping perhaps another Pioneer plasma owner or service tech might relate to this issue.
Specifically, the problem is that when displaying non-moving text and menus with horizontal bars, some of the pixels will either drop out (stop displaying color) flicker, or otherwise become unstable. The affected area covers about a 2-foot x 2 foot section in the middle of the screen, and occurs along invisible vertical bands about an inch wide (i.e. if there are two areas on the TV screen affect they will be the same width and vertically aligned with each other) Sometimes when the color drops out it appears elsewhere on the screen. The TV acts like it's trying to hold on to the image in those places but just can't maintain it.
The problem is also intermittent. Sometimes I can watch for hours and never see this happen, other times it's constant. It seems that the longer the static image appears the more likely the problem is to occur.
My first thought was this was a source or cabling issue, but the problem occurs across multiple inputs, multiple cable types, and multiple sources. It happens most often when I use my Tivo Series 3 HD connected through HDMI. The Tivo on-screen menu's navigation bar has a thin yellow frame around it that triggers the problem frequently. When using my Panasonic Blu-Ray Player DMP-BD60 with component video cable, it usually shows up in the letters of static on-screen credits or by showing breaks in very thin white lines like the one in the Artisan Entertainment logo. I've included two photos showing both of these issues.
What adds to the mystery is that Pio is flawless with moving and even still video images. I've never seen any issues whatsoever with moving and even paused scenes. It's just on static words and horizontal lines. *Additionally, moving bars and scrolling credits display just fine. The problem only appears when there are solid, non-moving bar-type graphics or text (in white and yellow especially).
I was fortunate enough to have Visa Warranty coverage for the set and have had a Pioneer authorized service center come out on two occasions to replace parts. My TV now has a new Y Drive Assembly and Digital Assembly and the problem still exists. The service guy basically said short of a $3k replacement panel he didn't know what else to do.
Anyone else have any experience with this kind of problem on your Pio?
Thanks for reading and letting my first post be a long one.