Originally Posted by MUGEN
I'm having 3 problems with my 46"
1. A random restarting for over a year now. I've had the main board replaced but it now happens less frequently and I have 6 103 HOST_WDT errors now(no other errors). The TV would randomly restart shortly after the TV has been turned or maybe a few hours after it has been turned on and only does it one time in a day and maybe once a week or every 2 weeks. The TV has done this about 7 times in the past 3 months since the main board was replaced. I'm using the coaxial cable tv input and have the guide information set to update overnight. I notice that when the TV randomly restarts the TV guide location settings are reset and I have to select my cable tv provider. The TV is hooked up VIA built in wifi and I've done a power/factory reset(by remote) that are listed on the sony support site. I've also done a power reset on my router. The TV also has the latest firmware. The only way to stop(almost 3 weeks no restarts) this problem is to disable wifi and have no guide information set to download overnight. I've contacted sony support abut this issue and based on my research it is a software bug.
2.The TV is emitting a buzzing sound from the right side mostly. The buzzing happens every 5-10 minutes and lasts for about a minute each time, and it goes threw this cycle continuously when the TV is on. The buzzing also goes threw the HDMI to my AV processor to my speakers tweeters. When the tv is buzzing I can make it loud or softer by adjusting the backlight setting. When the TV isn't buzzing I can make it buzz by setting motion flow to clear and clear plus(louder than clear). I have all sensors and 3D off. This is most likely a power board problem and it needs to be replaced.
3. I'm noticing a lot juddering and motion blur with panning video(24/30/60fps) and video games. I notice a lot fine pixelation/fine lines with a lot of motion. I also notice screen tearing on the graphics menus when navigating the menus or opening or closing the options menu. Navigating the menus isn't entirely smooth sometimes and a delay can occur. Enabling Motion flow fixes some of the judder but none of the 4 options remove it completely. I don't use any of the advanced picture settings like cinemotion and use game mode for video games. I have my PC hooked up to the TV and notice judder/shimmer/slight flicker on the text when scrolling this thread page with the scroll bar or mouse wheel/keyboard. Are these things I'm seeing normal or is a board bad? Would the T-Con/PYL Board be the problem as It does the following things "LCD Controller, Control Board, CTRL Board and Timing Control"?
It looks like the power and factory reset fixed my restarting problems, the TV has been downloading guide info for a month now on wifi and I haven't had any problems with it.
MY tv still has a random buzzing problem and I think it's the LED board. I also notice a bit of judder and blur on various content. Motionflow fixes this a little.
I've replaced the following parts.
Mainboard(new from sony)- this fixed the freezing and restarting problems I was having
Power board(new from sony)- this didn't fix anything
T-Con board(used? from parts distributor)- The TV looks much better overall, sharper and the blur/judder I was seeing is almost gone.
Can you do the following test
1 have the picture settings menu open with motion flow selected
2 switch between each setting from smooth to clear plus and listen for a buzz from the back of the tv
3. the backlight setting also changes the volume of the buzz and I would adjust this once Clear plus is turned on so you can pick up the noise better.
Another test I would like you to try
1 have a single colored background like white or a AVS forum page will do better displayed on the TV. Watching hd content will also work.
2 with clear plus enabled I see faint vertical lines on the display
These lines were a lot more noticeable with the old T-Con board. Maybe this is normal or I have a bad panel or T-con