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- From: egurney@vcd.hp.com (Ed J. Gurney)
- Subject: rec.video.cable-tv -- Let's get an FAQ going!!
- Sender: news@vcd.hp.com (News user)
- Message-ID: <Bzopxs.M5L@vcd.hp.com>
- Date: Tue, 22 Dec 1992 23:44:15 GMT
- Organization: Hewlett-Packard VCD
- X-Newsreader: TIN [version 1.1.8 PL6]
- Followup-To: poster
- Lines: 68
-
- I'm curious HOW people figure out how to modify cable TV converters.
- For instance, I was visiting a friend and he had a cable box which was
- actually _modified_ -- it had a three position switch added on the back.
- They were labelled "Run Mode", "Ch. Map" and the third position was a
- momentary contact. (I assumed it was for "Reset" or something.)
- Anyway, I want to know how people figure out how to modify cable boxes.
- Do they just take them apart and start looking at various places in the
- circuit with a scope? Or do they get a hold of schematics/repair info
- somehow and figure it out that way?
-
- Someone must know about these things -- there are a LOT of companies
- that sell after-market CATV products, and when you call some of them,
- you'd swear you know more than they do. Where do they get their
- products from? Is there some "mother" distributor that all these little
- companies buy from?
-
- I'm very curious about all this. Obviously there are people "in the
- know", but how come no one on the net has put together a list of cable
- converters, the scrambling technology used, known weaknesses,
- modifications, etc.? There is plenty of modification info on modifying
- amateur radio gear, scanners, etc. available on the net. How come
- nothing on cable boxes? Some of the scrambling techniques seem so
- similar, I'm surprised no one has figured out a way to use an "XYZ
- Converter" on an "ABC System" and vice-versa. Obviously the addressing
- techniques are different, but those can probably be eliminated since
- we're not interested in addressing, right? (Although details of how
- that works would also make a good read [HINT HINT]!)
-
- I think it's time we start putting together some useful info for
- rec.video.cable-tv. Other topics (besides the ones I mentioned above)
- might be:
-
- . The Universal Descrambler published in May, 1990 R-E -- fixes and
- comments. If you have one that works, what type of system is it
- working on? (ie., how "universal" is this thing?)
-
- . List of good mail-order sources for CATV related products.
-
- . "Test Chips" -- how do they work? How easy are they to install?
- Can they be detected? What precautions need to be taken?
-
- . Opening cable boxes -- sources for "tamper resistant" screwdriver
- bits, etc.
-
- . Cable TV "bullets" -- myths and facts.
-
- . Digital music services via cable -- how it works, addressability
- issues, scrambling, etc.
-
- . New scrambling technologies -- digital encryption, etc. How long
- before something more complicated than SSAVI (like VideoCipher II+
- or DigiCipher?) makes its way to consumer cable products? How about
- this new technology called "Chameleon"? What kind of things will
- all the fiber upgrades bring with all its bandwidth?
-
- Let's get some info here. If you know what type of scrambling is used
- in your headend at your Cable Co., send me some e-mail with that info,
- along with the type of equipment used by subscribers. If you have any
- experience with any of the above things I've mentioned, send me mail on
- those too! I'll HOPEFULLY get enough response to put together an FAQ
- for this group.
-
- Regards,
- Ed
- <egurney@vcd.hp.com>
-
- --
- signature on vacation for the holidays. 8-)
-