- Annoying TV disturbance - 5 Updates
- Diffferent techniques in troubleshooting - 1 Update
- Baffled by cordless tool problem - 1 Update
| root <NoEMail@home.org>: Jan 03 11:59PM I have recently become aware (bothered by) what appears to be a line moving up across the TV screen. The TV is a Samsung 4K with HDMI input, and the line that moves up the screen appears to be a missing scan line. The TV derives its input from a linux computer running mplayer, and the video card is an NVidia 610. The HDMI output goes to the TV and the vga output goes to a monitor which I can see while the TV is playing. The discontinuity on the TV screen is not replicated on the monitor screen. The moving line appears every few minutes. I was not conscious of the problem prior to a shutdown of the video server to increase the storage capacity. Any suggestion of what might cause the effect, or questions that may further clarify the phenomenon would be appreciated. |
| "Kenny Cargill" <me@privacy.net>: Jan 04 12:56AM Sounds like a ground loop hum bar, look here: http://www.cinemasource.com/articles/gnd_loop.pdf Move cables away from each other and don't use cheap co-ax, HDMI etc. cables. Kenny "root" wrote in message news:n6cclq$anm$1@news.albasani.net... I have recently become aware (bothered by) what appears to be a line moving up across the TV screen. The TV is a Samsung 4K with HDMI input, and the line that moves up the screen appears to be a missing scan line. The TV derives its input from a linux computer running mplayer, and the video card is an NVidia 610. The HDMI output goes to the TV and the vga output goes to a monitor which I can see while the TV is playing. The discontinuity on the TV screen is not replicated on the monitor screen. The moving line appears every few minutes. I was not conscious of the problem prior to a shutdown of the video server to increase the storage capacity. Any suggestion of what might cause the effect, or questions that may further clarify the phenomenon would be appreciated. --- news://freenews.netfront.net/ - complaints: news@netfront.net --- |
| stratus46@yahoo.com: Jan 03 05:45PM -0800 On Sunday, January 3, 2016 at 4:56:39 PM UTC-8, Kenny Cargill wrote: > Move cables away from each other and don't use cheap co-ax, HDMI etc. > cables. > Kenny Cinemasource has an RF isolator for which they want $50. I bought 3 for $25 from these guys. http://www.rmscommunications.net/pdf/MI2120VPG69&70.pdf My hum was in the audio from the RF feed. The isolator cleaned it all up. G² |
| Adrian Caspersz <email@here.invalid>: Jan 04 11:41AM On 03/01/16 23:59, root wrote: > of the video server to increase the storage capacity. > Any suggestion of what might cause the effect, or questions > that may further clarify the phenomenon would be appreciated. Two tests. Try HDMI from another source. If same fault here, blame Samsung and call their support. Or maybe cabling interference issues. Or temporarily try another OS on your hardware. A linux live CD would do. If it doesn't occur on the other OS, then grab the video timing info from that, and compare with your current OS. xvidtune -show -- Adrian C |
| John-Del <ohger1s@aol.com>: Jan 04 07:04AM -0800 On Sunday, January 3, 2016 at 7:00:01 PM UTC-5, root wrote: > of the video server to increase the storage capacity. > Any suggestion of what might cause the effect, or questions > that may further clarify the phenomenon would be appreciated. The fact that the line moves in that manner pretty much eliminates the display as a possibility, but it could still be a main board issue. When the line appears, put up the TVs own menu. If the line disturbs the menu, it's a TV issue. |
| "Ron D." <Ron.Dozier@gmail.com>: Jan 03 05:24PM -0800 The st120 is an interesting beast. I did repair one in the 80's AFTER someone made swiss cheese out of it. |
| John-Del <ohger1s@aol.com>: Jan 03 09:40AM -0800 On Saturday, January 2, 2016 at 10:24:05 PM UTC-5, Bob Engelhardt wrote: > http://www.dxmht.com/products/thermal-resistor.htm > Since it's soldered in, it should be OK for reflow. > Bob Huh.. learn something new every day. Never saw a thermal resistor in that package, but it sure looks like the one in the link. It seems the board has a conformal coating on it. When resoldering a board like this, it's much easier to accomplish with the coating off. |
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