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Electronics Forum / Electronics / July 2008Booby trapped HDCP digital HDTVs
Does anyone have any experiences of this type: http://www.iwaynet.net/~nesda/Jan04/Jan0413.jpg The author writes that the DVI (and presumably HDMI) inputs of some digital TVs can be rendered inoperative if one operates the set with its cover removed. Apparently an optical sensor triggers the erasure of a critical EEPROM, presumably as an anti-piracy measure. Should we treat all digital TVs as if they were booby trapped? - Franc Zabkar  SignaturePlease remove one 'i' from my address when replying by email. > Does anyone have any experiences of this type: > [quoted text clipped - 8 lines] > > - Franc Zabkar Just wondering it it is really done to prevent DVI input module piracy, or to stop un-authorized service personal working on the unit. What a trap. May just back-fire, and techs may well refuse to work on JVC equipment in future, if this is their approach. Don... SignatureDon McKenzie Site Map: http://www.dontronics.com/sitemap E-Mail Contact Page: http://www.dontronics.com/email Xbee Wireless Modules, and low cost Interface Boards. http://www.dontronics-shop.com/xbee-boards.html > > Does anyone have any experiences of this type: > > [quoted text clipped - 16 lines] > May just back-fire, and techs may well refuse to work on JVC equipment > in future, if this is their approach. Forget the techs, just refuse to buy such crap in the first place, IF it's true. And surely the best fix would be to disable the optical sensor permanently, rather than the "work arounds" given on the web site in any case. (possibly some black paint, or wire cutters would do the job, why on earth would you want to re-enable it anyway?) I know some companies are morons, but it still sounds a bit far fetched to me. Possibly written back in April? :-) MrT. >> Does anyone have any experiences of this type: >> [quoted text clipped - 11 lines] >Just wondering it it is really done to prevent DVI input module piracy, >or to stop un-authorized service personal working on the unit. If that's all JVC want to do, then they could use the optical interlock to temporarily disable the HDMI/DVI input. >What a trap. > >May just back-fire, and techs may well refuse to work on JVC equipment >in future, if this is their approach. > >Don... Some say that Pioneer is also doing this. BTW, the subject article was written in Jan 2004, so the practice is not new. This forum talks about JVC anti-tamper sensors: http://www.avsforum.com/avs-vb/archive/index.php/t-598154.html "There is a mention in the WARNING sections of the Z and Q series owners manuals on page7, section 12 which says: This television has a DIGITAL-IN terminal. Opening up the rear of the cabinet will violate the copyright of the program or software shown on the television. Please do not open the rear cabinet." - Franc Zabkar SignaturePlease remove one 'i' from my address when replying by email. |
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