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whats6x7
Joined: 04 Oct 2006
Posts: 5924
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| Posted: Wed Mar 26, 2008 7:28 pm Post subject: Converting a VGA breakout RGBHV cable to a component cable. |
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Can it be done? The cable already breaks out the R,G and B. Is there any way to add the H and V to one of the 3 color wires and make it component? I know you can buy a VGA to RGB cable.
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CRT_Ben
Joined: 28 Aug 2006
Posts: 1684
Location: Northern Virginia
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| Posted: Wed Mar 26, 2008 7:38 pm Post subject: Re: Converting a VGA breakout RGBHV cable to a component cab |
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| whats6x7 wrote: | | Can it be done? The cable already breaks out the R,G and B. Is there any way to add the H and V to one of the 3 color wires and make it component? I know you can buy a VGA to RGB cable. |
You don't need a cable, you need a transcoder, like Kim's TC1500 or TC2000. Component video is very different from RGB.
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whats6x7
Joined: 04 Oct 2006
Posts: 5924
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Wed Mar 26, 2008 8:29 pm Post subject: |
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Your digital likely has Y Cb Cr on the R B G lines of a normal RGB-VGA cable, I had an NEC MT1050 which was like that, the same cable/VGA input could be used for either component or RGB, it was just very convenient.
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Wed Mar 26, 2008 8:55 pm Post subject: |
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Exactly.
Some devices can output (or input) component or RGB over a VGA connector. You set within the device whether the VGA connector is doing RGB or component.
This cable is just breaks out the VGA connector to 3 RCA connectors. It does not convert RGB to component or vice versa. You need a $150+ box to do that properly. (Like the RTC2200 or TC1500).
Kal
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Last edited by kal on Thu Mar 27, 2008 3:05 am; edited 1 time in total
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whats6x7
Joined: 04 Oct 2006
Posts: 5924
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| Posted: Wed Mar 26, 2008 9:08 pm Post subject: |
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| Elaine Benes wrote: | | Your digital likely has Y Cb Cr on the R B G lines of a normal RGB-VGA cable, I had an NEC MT1050 which was like that, the same cable/VGA input could be used for either component or RGB, it was just very convenient. |
My question still stands though. Does anyone know if the VGA to Component cable use the same pins and pairs as the VGA to RGBHV breakout cable?
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Wed Mar 26, 2008 9:23 pm Post subject: |
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| whats6x7 wrote: | | Elaine Benes wrote: | | Your digital likely has Y Cb Cr on the R B G lines of a normal RGB-VGA cable, I had an NEC MT1050 which was like that, the same cable/VGA input could be used for either component or RGB, it was just very convenient. |
My question still stands though. Does anyone know if the VGA to Component cable use the same pins and pairs as the VGA to RGBHV breakout cable? |
Yes. Usually. Check the manual for your projector, it should tell you for sure there. Or just try it, it won't hurt anything.
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Thu Mar 27, 2008 1:12 am Post subject: |
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| kal wrote: | Exactly.
Some devices can output (or input) component or RGB over a VGA connector. You set within the device whether the VGA connector is doing RGB or component.
This cable is just breaks out the VGA connector to 3 RCA connectors. It does not convert RGB to component or vice versa. You need a $1500+ box to do that properly. (Like the RTC2200 or TC1500).
Kal |
Yikes! Did Kim have a price increase I didn't know about? 
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Thu Mar 27, 2008 2:39 am Post subject: |
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There's no such thing as a "VGA to component" cable.
That is a VGA to RGsB cable.
Your flashlight is doing some very, very non-standard if it uses a HD-15 for a component input.
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whats6x7
Joined: 04 Oct 2006
Posts: 5924
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| Posted: Thu Mar 27, 2008 2:46 am Post subject: |
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I bought a cheap, chaeap, cheap, cheap, cheap, cheap, cheap assed flashlight. Still, check the bold section below. . . .
VIEWSONIC PJ503 DLP PROJECTOR
RESOLUTION 800X600, 1600X1200 COMPRESSED
LAMP 160W/3000 HOURS RATING 1500 LUMENS 2000:1
263mm (W) x 108mm (H) x 218mm (D) 2.6KG FULL-FEATURED PROJECTOR IS AN IDEAL CHOICE FOR PROFESSIONAL PRESENTATIONS
PI DATE: FEBRUARY 2007
LCD TYPE: 0.55" SVGA (DLP)
RES: 800x600, 1600x1200 compressed
LENS: Digital zoom, manual focus
DISPLAY SIZE: 37 - 150 inch (measured diagonally)
THROW DISTANCE: 1.5 - 6.0m
LAMP: 160W /3000 hour rating
BRIGHTNESS: 1500 Lumens (typ)
CONTRAST RATIO: 2000:1 (typ)
KEYSTONE CORR: Yes
INPUT SIGNAL: Video: RGB analogue, NTSCM, NTSC 4.43, PAL, SECAM,
HDTV (480i, 480p, 576i, 576p, 720p, 1080i)
Sync: H/V separated; Freq: Fh: 15-92KHz; Fv: 56-120Hz
COMPATIBILITY: PC: from VGA to UXGA (scaled)
Mac: up to SXGA (may require Mac Adapter)
CONNECTOR: RGB Input: 15-pin HD D-sub cable (x1)
Composite Video: RCA jack (x1)
S-Video: Mini-DIN 4 pin (x1)
Component Video: VGA DB-15 to component adpater Control: RS-232 (8 Pin D-sub) x1, USB: x1
POWER: Voltage: 100-240VAC; 50/60Hz (universal)
POWER CONSUMPTION: 250W (typ)
DIMENSIONS: 263mm (W) x 108mm (H) x 218mm (D) WEIGHT: 2.6 kgs
REGULATIONS: CSA, TUV-GS, CB, FCC-B, CE, C-Tick
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Thu Mar 27, 2008 3:06 am Post subject: |
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| AnalogRocks wrote: | | kal wrote: | Exactly.
Some devices can output (or input) component or RGB over a VGA connector. You set within the device whether the VGA connector is doing RGB or component.
This cable is just breaks out the VGA connector to 3 RCA connectors. It does not convert RGB to component or vice versa. You need a $1500+ box to do that properly. (Like the RTC2200 or TC1500).
Kal |
Yikes! Did Kim have a price increase I didn't know about? |
Oops - that was supposed to be $150+.  Fixed!
Kal
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My basement/HT/bar/brewery build 2.0
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dculberson
Joined: 05 Jan 2007
Posts: 211
Location: Columbus, OH
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| Posted: Thu Mar 27, 2008 2:54 pm Post subject: |
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Most of the projectors with component over DB15HD use the same pinout as the R-G-B pins on the VGA->RGBHV cables. You don't need to do anything with the H or V leads. Just adapts the R, G, and B to RCA (or whatever your component source uses) and connect thusly:
Red: Pr
Green: Y
Blue: Pb
I made a cable by hand for my Epson "flashlight" and it worked great.
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