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#22
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ATEN CS-104 KVM switch need power cord
On Mon, 26 Nov 2018 19:21:34 -0500, John McGaw
wrote: On 11/26/2018 4:30 PM, wrote: On Mon, 26 Nov 2018 12:06:36 -0500, Paul wrote: wrote: ?ATTENTION?: DC Plug Polarity: inner Positive(+), outer Negative(-). If You Are Looking for an Opposite Polarity Charger, Please Search B01IVPXV38 or www.amazon.com/dp/B01IVPXV38. Your solution comes in two pieces. _____ / \ +----+ +--------+ / \ | ----- Barrel --- Adapter xxxxxxxxxxxxxxxxxxxxx| O o | | ----- --- \ Female/ +----+ +--------+ \_____/ | | == Male pins That is a "polarized" adapter. The matching plugs have (+) and (-) written on the side of the L-shaped thing that plugs into the end of the adapter. The two holes are different sizes, so it only plugs in one way. The male pins are two different diameters. The female portion has one hole bigger than the other. Because it only plugs in one way, the product delivers "Center Positive" by default. Before buying a keyed product like that, you verify your KVM is "Center Positive" before buying a Center Positive (keyed style) adapter. ******* The other kind of adapter (ones at RadioShack) have identical sized holes on the Adapter end piece. _____ / \ +--------+ / \ --- Adapter xxxxxxxxxxxxxxxxxxxxx| O O | --- \ / +--------+ \_____/ As a consequence of this choice, the L-shaped piece that plugs into that, goes *two possible ways*. It can go the right way and the wrong way, so to speak. If you were to buy such a thing, you'd use your multimeter to verify the center pin was positive with respect to the shield. This must be done with some care, to avoid unnecessarily shorting out the adapter. This is the kind I own. Because of the added flexibility, I can have "Center Positive" or "Center Negative", just by rotating the L-shaped piece before plugging it into the adapter. Such an adapter is only recommended for those who like multimeters and have some grasp of the basics of "electricity" :-) Not many pieces of electronics have polarity protection, but some do. ******* Since you bought the top item, you won't have to worry. When you get it, verify it's "keyed" by means of the two hole sizes, and that the plug only goes in one way. (When the L-shaped meets the adapter end, only one way of inserting it.) The product is keyed for "Center Positive". As long as the label in the KVM plastic shows "Center Positive" as well, you're all ready to go. I still like to use my multimeter, because I'd a curious individual who verifies lots of stuff. That's just the way I am. Paul Hi Paul - You know who I am. Much help in the past. Looks like I'm ok. I shud receive the adapter in a week or two. In the meantime - now that I have your attention - I can use your guidance in another area. I use a laptop to play movies on my TV via cable connecting the laptop HDMI to the TV HDMI, both female. A HDMI cable does the trick. Wouldn't you know - the laptop has gone up. To save my marriage, I thought to connect an unused XP PC to the TV, and need an adapter to do the job. This looks good: https://www.amazon.com/Gold-Plated-Adapter-Active-Converter-Meters/dp/B07CB83X4N/ref=asc_df_B07CB83X4N/?tag=bingshoppinga-20&linkCode=df0&hvadid={creative}&hvpos={adpositio n}&hvnetw=o&hvrand={random}&hvpone=&hvptwo=&hvqmt= e&hvdev=c&hvdvcmdl={devicemodel}&hvlocint=&hvlocph y=&hvtargid=pla-4584482455415643&psc=1 What do you think? Thanks as before. Happy gobble gobble. Pete Read the caveats carefully! If you want to go from a VGA video out of the computer to HDMI on the display this looks like the exact opposite of what you need: "NOTE: Support ONLY one-way signal transmit and convert from HDMI to VGA, it is not reversible from VGA to HDMI. And The cable chip requires sufficient power from output HDMI port. We have tested this converter cable with most of... " I missed that. Thanks. Pete |
#23
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ATEN CS-104 KVM switch need power cord
wrote:
Hi Paul - You know who I am. Much help in the past. Looks like I'm ok. I shud receive the adapter in a week or two. In the meantime - now that I have your attention - I can use your guidance in another area. I use a laptop to play movies on my TV via cable connecting the laptop HDMI to the TV HDMI, both female. A HDMI cable does the trick. Wouldn't you know - the laptop has gone up. To save my marriage, I thought to connect an unused XP PC to the TV, and need an adapter to do the job. This looks good: https://www.amazon.com/Gold-Plated-Adapter-Active-Converter-Meters/dp/B07CB83X4N/ref=asc_df_B07CB83X4N/?tag=bingshoppinga-20&linkCode=df0&hvadid={creative}&hvpos={adpositio n}&hvnetw=o&hvrand={random}&hvpone=&hvptwo=&hvqmt= e&hvdev=c&hvdvcmdl={devicemodel}&hvlocint=&hvlocph y=&hvtargid=pla-4584482455415643&psc=1 What do you think? Thanks as before. Happy gobble gobble. Pete I think the Amazon one is the wrong direction for you. The Amazon one is: computer (HDMI-out) ======== (VGA-in) TV set But your TV has HDMI, and your computer has VGA. The one you want, is like this. Petes_Computer (VGA-out) ===== (HDMI-in) TV set Unfortunately, that's an "expensive" direction. It requires a digitizer on the VGA side, to make a digital signal for the HDMI side. But I see prices have come down *a lot*. At one time, a function similar to this would be $300. ******* I checked here, just to see what kind of price is involved. The search turned up some turkeys instead of what I was looking for, so not all of these are the right ones. https://www.startech.com/Search?search_term=vga+to+hdmi https://www.startech.com/AV/Converte...-1080p~VGA2HDU Here is a picture of the adapter. It takes VGA plus USB for power, and makes an HDMI signal. The back of your PC would need a VGA and a USB. https://sgcdn.startech.com/005329/me...A2HDU.main.jpg That will give you some idea what kind of connectors might be involved. ******* When you're planning your project, you have two aspects to solve, video and audio. The HDMI to HDMI you were previously using, might have been able to send audio over HDMI too. So the one cable can carry both streams of information. HDMI digital format has room for up to 8 channels of LPCM audio. Your home theater could have a 7.1 speaker system for example. Not all program content has 8 channels, so lots of times it will be stereo and use 2 channels. When you work with VGA, the VGA doesn't have audio. For audio to get to the TV set from the PC tower you've got, you'll either need a 1/8" plug to dual RCA plugs (red and white on the TV set). Or, you'll need the new adapter to handle audio (somehow). The above adapter does USB to audio-over-HDMI. When you plug in the USB plug, a new "sound card" will appear in your sound output choices. You set the default sound output to the new device, and the sound is carried on the HDMI cable. If the TV set is too old to support that, the analog 1/8" to two RCA males (red and white) will do the job instead. ******* OK, here's an Amazon example of VGA to HDMI. Notice that the resolution choices are limited, and they're mostly VESA resolutions. $26 (handles audio too) https://www.amazon.com/Moread-Adapte.../dp/B072ZW46JP 1920x1080@60Hz 1080p Full HD 1600x1200 1024x768 800x600 So it doesn't have a 1280x720 for example (720p). Preferably, it's nice to have wide screen formats for your particular application. 1920x1080 might be what you're using now with the laptop. If so, then the device above is a perfect fit (1080p). Ratio is 1.77 1280x720 is also 1.77 . That's 720p. This one is even cheaper, at $16. $16 (handles audio too) https://www.amazon.com/Neoteck-Conve.../dp/B01JYAYSUY [P means Progressive Scan (what computers typically use)] 1080p 16:9 = 1.77 wide like TV 1600x1200p 4:3 1280x1024p 5:4 1280x960p 4:3 1280x768p 1280x720p 16:9 = 1.77 wide like TV 640x480p 4:3 I'm surprised they sell them for that little. Anyway, those are examples of VGA to HDMI. Now, double check what you need (I could be mistaken), and when you pick something you like, post back for comments. Paul |
#24
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ATEN CS-104 KVM switch need power cord
On 11/26/2018 8:19 PM, Paul wrote:
wrote: Hi Paul - You know who I am.Â* Much help in the past. snip... I'm surprised they sell them for that little. Anyway, those are examples of VGA to HDMI. Now, double check what you need (I could be mistaken), and when you pick something you like, post back for comments. Â*Â* Paul I had thought that, if this was my problem, I'd just pop in a proper (but cheap) digital video card then I realized that doing so with an XP OS might prove to be a driver disaster. Honestly, it might just be easiest for OP to buy a new laptop -- ones up to this sort of task are pretty cheap right now and way less hassle. |
#25
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ATEN CS-104 KVM switch need power cord
John McGaw wrote:
On 11/26/2018 8:19 PM, Paul wrote: wrote: Hi Paul - You know who I am. Much help in the past. snip... I'm surprised they sell them for that little. Anyway, those are examples of VGA to HDMI. Now, double check what you need (I could be mistaken), and when you pick something you like, post back for comments. Paul I had thought that, if this was my problem, I'd just pop in a proper (but cheap) digital video card then I realized that doing so with an XP OS might prove to be a driver disaster. Honestly, it might just be easiest for OP to buy a new laptop -- ones up to this sort of task are pretty cheap right now and way less hassle. If the existing card had a DVI on it, you could try DVI to HDMI passive dongle. If you had an FX5200, those only do 135MHz on DVI instead of 165Mhz, and you might have to run the output at 720p. Someone (unfortunately) reports a similar-sounding problem with a 6200. I would have recommended a 6200, as cards were available for three different slot types, but I see someone had a problem when doing DVI to HDMI on the 6200. Both of those cards would have WinXP drivers. I don't really see a lot of AGP cards with HDMI on them, I guess the intersection is the "empty set" or something. And you're right, that the problem requires stepping back a bit, and like McGyver, taking stock of what things you have on hand, and how you can bodge them into something. Paul |
#26
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ATEN CS-104 KVM switch need power cord
On Mon, 26 Nov 2018 20:19:12 -0500, Paul
wrote: wrote: Hi Paul - You know who I am. Much help in the past. Looks like I'm ok. I shud receive the adapter in a week or two. In the meantime - now that I have your attention - I can use your guidance in another area. I use a laptop to play movies on my TV via cable connecting the laptop HDMI to the TV HDMI, both female. A HDMI cable does the trick. Wouldn't you know - the laptop has gone up. To save my marriage, I thought to connect an unused XP PC to the TV, and need an adapter to do the job. This looks good: https://www.amazon.com/Gold-Plated-Adapter-Active-Converter-Meters/dp/B07CB83X4N/ref=asc_df_B07CB83X4N/?tag=bingshoppinga-20&linkCode=df0&hvadid={creative}&hvpos={adpositio n}&hvnetw=o&hvrand={random}&hvpone=&hvptwo=&hvqmt= e&hvdev=c&hvdvcmdl={devicemodel}&hvlocint=&hvlocph y=&hvtargid=pla-4584482455415643&psc=1 What do you think? Thanks as before. Happy gobble gobble. Pete I think the Amazon one is the wrong direction for you. The Amazon one is: computer (HDMI-out) ======== (VGA-in) TV set But your TV has HDMI, and your computer has VGA. The one you want, is like this. Petes_Computer (VGA-out) ===== (HDMI-in) TV set Unfortunately, that's an "expensive" direction. It requires a digitizer on the VGA side, to make a digital signal for the HDMI side. But I see prices have come down *a lot*. At one time, a function similar to this would be $300. You agree with J McGaw on this. Clearly I missed the boat on this - I was too hasty. Thanks for pointing thaat out. It was a bad mistake on my part. Gotta be more careful. ******* I checked here, just to see what kind of price is involved. The search turned up some turkeys instead of what I was looking for, so not all of these are the right ones. https://www.startech.com/Search?search_term=vga+to+hdmi https://www.startech.com/AV/Converte...-1080p~VGA2HDU Here is a picture of the adapter. It takes VGA plus USB for power, and makes an HDMI signal. The back of your PC would need a VGA and a USB. https://sgcdn.startech.com/005329/me...A2HDU.main.jpg That will give you some idea what kind of connectors might be involved. ******* When you're planning your project, you have two aspects to solve, video and audio. The HDMI to HDMI you were previously using, might have been able to send audio over HDMI too. So the one cable can carry both streams of information. HDMI digital format has room for up to 8 channels of LPCM audio. Your home theater could have a 7.1 speaker system for example. Not all program content has 8 channels, so lots of times it will be stereo and use 2 channels. When you work with VGA, the VGA doesn't have audio. For audio to get to the TV set from the PC tower you've got, you'll either need a 1/8" plug to dual RCA plugs (red and white on the TV set). Or, you'll need the new adapter to handle audio (somehow). The above adapter does USB to audio-over-HDMI. When you plug in the USB plug, a new "sound card" will appear in your sound output choices. You set the default sound output to the new device, and the sound is carried on the HDMI cable. If the TV set is too old to support that, the analog 1/8" to two RCA males (red and white) will do the job instead. ******* OK, here's an Amazon example of VGA to HDMI. Notice that the resolution choices are limited, and they're mostly VESA resolutions. $26 (handles audio too) https://www.amazon.com/Moread-Adapte.../dp/B072ZW46JP 1920x1080@60Hz 1080p Full HD 1600x1200 1024x768 800x600 So it doesn't have a 1280x720 for example (720p). Preferably, it's nice to have wide screen formats for your particular application. 1920x1080 might be what you're using now with the laptop. If so, then the device above is a perfect fit (1080p). Ratio is 1.77 1280x720 is also 1.77 . That's 720p. This one is even cheaper, at $16. $16 (handles audio too) https://www.amazon.com/Neoteck-Conve.../dp/B01JYAYSUY [P means Progressive Scan (what computers typically use)] 1080p 16:9 = 1.77 wide like TV 1600x1200p 4:3 1280x1024p 5:4 1280x960p 4:3 1280x768p 1280x720p 16:9 = 1.77 wide like TV 640x480p 4:3 I'm surprised they sell them for that little. Anyway, those are examples of VGA to HDMI. This looks promising. Now, double check what you need (I could be mistaken), and when you pick something you like, post back for comments. Thanks - I will. I'm not so sure now that this was a good idea. Might be better just to get the laptop fixed. Or buy a new laptop. Paul |
#27
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ATEN CS-104 KVM switch need power cord
On Mon, 26 Nov 2018 21:06:50 -0500, John McGaw
wrote: On 11/26/2018 8:19 PM, Paul wrote: wrote: Hi Paul - You know who I am.* Much help in the past. snip... I'm surprised they sell them for that little. Anyway, those are examples of VGA to HDMI. Now, double check what you need (I could be mistaken), and when you pick something you like, post back for comments. ** Paul I had thought that, if this was my problem, I'd just pop in a proper (but cheap) digital video card then I realized that doing so with an XP OS might prove to be a driver disaster. Honestly, it might just be easiest for OP to buy a new laptop -- ones up to this sort of task are pretty cheap right now and way less hassle. Yep - I agree. Pete |
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