tablet, hdmi to rca visors

I have a 10" super pad tablet and it has a HDMI out and I want to connect the tablet to two 12" sunvisors but they are rca connection. so am I going to need an expensive adapter or something.right nnow I have a HDMI adapter cable where its male HDMI and goes to rgb rca but the tablet isn't reading the signal and the visor remains no signal

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"

Those cables do not convert, they are used to attach an HDMI device with inbuilt composite (RCA) or RGB (VGA etc) conversion.


It's probably cheaper buying new monitors.

That's what I figured since HDMI transfer a/v and the analog only does video

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"

Well, the cable can split that, but it's the conversion that is also required.

I found the ads for those cables confusing.
Though HDMI to RCA & RGB converters are still often well over $100, there are those for around $50. Drop their enclosure and it's easy to see how cable-integrated converters would sell for under $10.
Hence the importance of good descriptions in their copy.

If an ad says HDMI to 3RCA&VGA Converter Adapter Cable, why does it add the superfluous Converter if it does not convert the signal? (Oh, but it "converts the connectors". In that case, what does the "Adapter" do?)

Some sites do the right thing and clarify that it is ONLY an adaptor or interface cable and not a signal convertor - ie, it is to connect an already converted HDMI outlet to composite or RGB.
But I would expect to get the full "conversion" from some sites - they have nothing to suggest that they are not the converter their name includes.
Others sell because even though conversion isn't mentioned, some buyers won't understand the technical limits.
It is probably only the cable price atm that differentiates, but that's only because HDMI interfacing is still in its introductory and fad phase. Price is often not an indicator of sophistication. (LOL - I see 4-way HDMI, RCA, s-vid, comp etc mechanical selector boxes cost more than their remote-controlled electronic counterparts.)   


But what of the HDMI "converter" cable I saw for $15-$20? That could be a $50-$100 converter in a cable.
But is it?

That's what I noticed too I purchased a 8 cord claiming to do the same but then it said I might need another convertor which required a power source . Completely misleading

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"

It saying you "might" need another convertor is the giveaway, NOT that I expect "normal consumers" to understand that, nor us unless we know of video etc conversion issues.

Down here I'd suggest (say...) that if the name included "converter" then it shall do that, else be refundable (unless its limitations and exceptions were made "reasonably clear to a reasonable buyer).
Not that people go to too much effort on such buys, but it is a nice fallback.

Ya I might just need another I'm going to plug the tablet into another HDMI connection and see what I get. But if I can find some 12 HDMI sunvisors that would be sweet

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"

HDMI is digital, RCA is analog. You need a proper converter, like this one. I don't know if you can power this from 12V or not... Also be aware that not all HDMI can be converted to analog: the law allows manufacturers and content providers to block this if they choose because they don't want high-definition digital files converted to high definition analog.

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I wonder how the law and the providers expect to stop them. (Not provide HDMI outputs?)

There are lots of converters from $50 upwards and most are powered from plugpacks so the usual adaptation to automotive 12V systems apply.
Conversion quality is an issue but probably not for composite monitors.

oldspark wrote:

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I wonder how the law and the providers expect to stop them. (Not provide HDMI outputs?)

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Stopping it is simple with any HDMI system that is HDCP/AACS compliant. All that's required is for the content owners to turn on a copy protection flag in the digital encoding. Then max analog resolution is 480i/576i depending on which system you're on.

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But if you keep it as normal HDMI output and add a converter, the output is unrestrained. That's unless the source requires the token to deliver above 960×540 (as was specified for analog outputs).

The HDMI readers (converters) would have to be HDCP/AACS compliant, and I don't think all are. In that case of course they won't read any HDCP/AACS source - the source can't tell if it's being copied or merely displayed.

I know there are already hacks for HDCP/AACS compliant stuff just as there is for older DVD etc protection (viz PCs and various copy programs). Whether they are incorporated into readers/converters is AFAIK yet to be seen. Personally I'd probably choose to pay the $1 HDCP/AACS fee, but I guess many would prefer production runs of more complex hardware instead.

But for now it's probably semantics until the copy flag is enabled, and many still don't have complete end-to-end HDMI HDCP/AACS compliant systems.


At least this isn't as anti-competitive as the old DVD region codes were - which is not legal in Australia - though I wonder if a similar outcome may occur for HDCP/AACS if challenged on a resolution basis rather than its rightful copy protection. (But if converters say they are readers and not copiers...)

So the convertor is 299 and the law your saying from going to digital to analog for copy protection .so basically its a better route to get a new set of screens

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"

No - it's the opposite. Converters are unlikely to be compliant whereas HDMI screens are.
But I don't think non-compliance is an issue yet. Maybe DYohn could say if and when it is.

Any HDMI device that decodes the digital stream must be compliant (to be sold legally in the US after 2011 at least.) If the content owner has turned on the analog flag, then the max resolution of conversion is limited, and can also be turned off completely. There are a number of grey-market components being made in China and elsewhere in Asia that are not compliant and are designed specifically to support the pirate industry. I cannot recommend using them.

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