Use this tag for technical aspects of TV (video formats, for example). Shopping questions are off-topic and repair questions might be too localized.
-2
votes
1answer
61 views
A Strange CRT TV Interlace Issue [closed]
Ours has a strange problem. The top 2" of the picture show what seems to be the two scans of the interlace are out of sync or something. When the screen is blank/black (playing just music through the ...
1
vote
1answer
133 views
Why cable TV frequency range ends at 1 GHz?
Currently frequencies 50-1000 MHz are allocated for TV and data transfers. I understand why there are limitations for aerial or satellite transmissions, but why are they retained for cable ...
-3
votes
1answer
85 views
How do I connect my laptop (VGA port) to a TV (HDMI port only) [closed]
I have a laptop which has a VGA port only. I want to connect it to a TV which has a HDMI port only. As expected, the TV has a HDMI cable only.
So, what would be the simplest way to connect my laptop ...
-1
votes
1answer
83 views
How is (non-interfering) data communication possible over the tv spectrum? What is the technology used?
I've heard that FCC-US (Federal Communication Commission - United States) has approved the free usage of TV spectrum for wireless communication. How is it possible to enable such data communication ...
-2
votes
1answer
51 views
Analog and digital cable encoding [closed]
I am looking to have a card encode multiple channels on to a single cable tv line so that several tv's in the house could change channels to a different stream from the same source like how a cable ...
0
votes
2answers
140 views
Computer case causing interference with TV
I've recently changed my computer case to a new, bigger case. However, after I changed this case over, I can no longer watch TV due to interference with the signal.
I have removed every output to my ...
1
vote
1answer
130 views
How can PAL (TV) encode 3 colors in 1 phase?
As I understand it luminance is the amplitude of the signal, and color is the phase. You need 2 color signals (the third one can be derived from the other 2, like B = 1 - R - G). How can 1 phase ...
-3
votes
4answers
303 views
How can I repair my old tube TV safely?
I got an old Nokia tube television from my grandmother. I tested it, but there is no picture. I can hear the audio. The filament is not glowing. I am studying EE, but there I only dealt with low ...
2
votes
1answer
492 views
Color problems when turning a CRT TV set into an oscilloscope
I found an old CRT TV set in the garbage. It didn't work, always showing the "snow effect", even when I connected it to another device via the SCART port.
So I followed an online tutorial to make it ...
0
votes
1answer
130 views
How to connect MP3 player to TV using RCA? [closed]
I have a personal MP3 player with 3.5mm stereo socket for output.
I have made a 3.5mm to RCA stereo cable by connecting the shorter inputs to the centers of each of the Left and Right RCA jacks and ...
-2
votes
1answer
150 views
HDMI to Component [closed]
I'm trying to use my Raspberry PI with HDMI output to my older TV with component in.
Raspberry PI -> HDMI --> COMPONENT --> TV
(tv specs in link)
Is there any way to do this? The screen size is 32", ...
2
votes
2answers
144 views
What are some economical ways to get a remote analog video feed?
I am a computer programmer and I like playing with robots.
But I don't have access to tons of cool toys so I try to make do with what I've got.
The other day I was trying to navigate an R/C car ...
1
vote
1answer
704 views
V-control broken on old (CRT) TV-Set?
I found a TV-Set in a dumpster, and checked if it's still working.
Indeed it is somewhat functional, but the picture is distorted:
(screenshot of the TV)
Depending how bright the picture is, it ...
4
votes
1answer
618 views
Can a small gauge wire be used in a fractal antenna?
I want to make a fractal antenna to replace an old set of rabbit ears. All the guides I've seen have used a thicker wire (metal coat hangers seem popular). While I don't have any hangers, I do have an ...
1
vote
2answers
257 views
Testing a video transmitter for video bandwidth
I need to test the bandwidth of a variety of video transmitters to figure out the maximum resolution I can safely output without losing detail. To this end, I came up with a solution using a TV ...
3
votes
2answers
4k views
Philips/Magnavox LCD TV Service UART / ComPair
I have a Magnavox 42MF438B/27 42" LCD TV. The IR sensor (or something related) quit working after awhile, so we have been unable to use the remote. Today, I was digging around behind the TV and ...
3
votes
3answers
231 views
DIY Single-Channel Television
My building recently installed a CCTV camera system. Anyone with cable TV is able to tune into channel XX and watch the CCTV stream live.
I want to get a cheap and small LCD (≤7") and build a ...
10
votes
2answers
972 views
Generating PAL tv signal using a PIC
I'm trying to generate PAL tv signals using a PIC24FJ64GB002 using a similar method to the circuit described half way down this page. The only difference is that my circuit needs to run at 3v instead ...
