WS-65807 picture goes black when using HiDef Signal
The picture on my WS-65807 works great if I am watching a DVD....however, if I switch to my Direct TV receiver with high def picture....after a few minutes the picture goes black....every so often the picture comes back...then it disappears again. It also sometimes cycles through the PIP menus.
The TV had seldom been used. All connections have been validated and the receiver ruled out by Direct TV (they charged me to come out & tell me this).
In all the posts..this tv appears to be a good solid unit. I'd hate to purchase another without a good reason.
Any help is appreciated before I go to the local Mitsu repair shop & beg for mercy$$$.
Re: WS-65807 picture goes black when using HiDef Signal
If the unit operates correctly on DVD then we can assume that the signal chain and display is operational. Can you substitute the Directv receiver to rule the box out as part of the problem? I know they came out and checked but how exhausting was the testing? Have you checked signal strength on the directv on screen setup? Low or marginal signal strength could cause intermittent blanking. When the screen goes dark does the audio continue?
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Thats usually a vertical issue since the menu still works. I would check the solder on the vertical IC and also the Vertical yoke plug pins. Often solder can develop a small crack around the pins and resoldering will usually fix the issue in most cases. The other item could be a leaky CRT has dripped some coolant on some of the components in the vertical circuit so I always check the board for any sign of a clear sticky residule on the boards which indicate dripping CRT coolant.
go to this websight leave an e-mail with your model number and let them know you need a signal board and they should be able to help you plus there prices are very reasonable and they also offer free online tech support to their customers http://servicemanuals.vstore.ca/
Go to PS3 / Display settings. Set superbright OFF, even if you don't have HDMI. Set Cross Color Reduction to OFF. Set Display to only one resolution, not all of them as you probably have it now. Set it ot the highest possible resolution and uncheck all other boxes. The 480i is always on by default. The issue, which was very annoying, was fixed for me. I have a mitsubishi 65 inch RP that is pretty bright on daytime/sunlight scenes, so I never thought it was the PS3, but only whet the PS3 was used did this occur. I scanned this site via google to find that nobody else appeared to have resolved this. So after some changes and testing this solution worked for me. Enjoy! - Dave Walz
P.S. I think the only real fix was to set just one display resolution, but I am now watching a movie and am not going to stop it to find out. :) That's for whomever follows this posting to find out for themselves. Either way, this is working great.
The TV supports 1080i so if your hardware is plugged into the Component Cable Connection for Digital TV on the back the signal will come out 1080i as long as the hardware supports the size.
For example, my 360 is connected like this and when the dvd player is in use it upscales from the 480 format dvds use to 1080. More on the HD-DVD for the 360 and how it handles the sizes here: http://www.engadgethd.com/2006/09/21/xbox-360-hd-dvd-playback-maximum-1080i-via-component-1080p-vga/
Kind of an old article since the newer 360s have hdmi and support 1080p that route.
What I usually find on sets like that is that there is a loose solder joint on the CRT board itslef. You must get to the bottom of the picture tubes, pull off the CRT board from the red CRT and examine all solder joints on that board. Chances are one or more will be cracked, and resoldering all joints on the board should clear up your problem.