Question about Televison & Video
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Posted on Jan 02, 2017
What you have there could be one of three possibilities. Micro, eprom or tact switches... Tact switches are the small contact switches behind the buttons you depress to turn the volume up and down or change the channel. Sometimes these small switches can become contaminated or breakdown due to corrosion. What we call in the industry a windex syndrom, because the older crts on some models had the swiches exposed just below the lower ridge of the cry where when cleaning the screen windex could drip down onto the switch and cause the corrosion to begin.
Eprom is another likely suspect. This Ic is responsible for storing an array of information including customer settings and other logics convert what the eprom stores into electronic pulses for any number of fuctions. For example press the volume down on your Tv and the eprom has the information to show you the volume bar, the level the volume bar was last set at and the increments at which you are reducing it realtime.
The Micro is another possibility. It acts like a traffic cop engaging various circuits to do or not do something according to a preset list of conditions. Timers, looking at a particular input or yes even bringing up the menu is tasked through the micro controller Ic or micro for short.
The fact that you can eventually get the unit to operate suggests that something in the logic circuit is failing and will in all likelyhood continue to do so until eventually it doesn't work at all...
Posted on Nov 14, 2007
SOURCE: OSD menu locked
When the OSD is locked, pressing the menu button again and it will take user to OSD LOCK menu. Press (+) to unlock and allow user access to all applicable settings.
Posted on Aug 12, 2008
My son put a penny in the SD card slot of my Pansonic flat screen tv. I finally got the penny out but now the volume and tv controls do not work. I can change the channels through my cable box but that is it. The volume does not work on my cable remote or the flatscreen. What do you suggest I do to fix this problem?? Thanks, Josh
Posted on Aug 23, 2009
This is the best solution for your problem as a 40 year experience with wires etc. Go to the source of your cable signal connector . Open it and clean the terminals with emery paper , sand the end of the cable shiny clean from corrosion , get a new barrel connectors with gold terminals if possible lengthen the ends of the cable , insert and tighten good, use thick rg-16 or rg 40 cable with good insulation ends crimped professionally with a crimpier or buy ready made , not from dollar store. Get a gold plated professional splitter if you need one or two , it will cost about 15 or more each . Make the cable runs as short as possible, using the thick good cables. If needed get a signal magnifier. From radio shack or the source etc. Connect them good and tight . Ground the splitters . Problem solved , you will get crystal clear channel 2 to 7 including 3 and 4 . Isolate the TV cable from other cables and power wires. Vitally
Posted on Apr 15, 2010
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One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive
Test all leads that attach to your hard drive including electrical extensions,IDE,SATA
the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electic extensions or just replace them they are probably faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error
or it might be your graphics card make sure its securely seated and there is no dust built up
on and around the graphics card hope this helps
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