VIDEOCIPHER II THEORY OF OPERATION &ndash Volume 4 (Catlett, VA)

VIDEOCIPHER II THEORY OF OPERATION &ndash Volume 4

Local pick-up preferred but will ship at the buyer s expenseKingston Books 15 IMG_7202Publisher Micromod Press Los Angeles Ca.Parts Lists Pictorials Software Listing and MoreMemories of the BIG C-band Satellite Dish. Did you have one If so when the programmers began scrambling their satellite TV signals you either Watched what was in the clear. Or purchased a MAACOM or later a General Instruments decoder. To make life a bit simpler most satellite TV receivers (called IRD s) incorporated the dish positioner and the decoder in one enclosure.Then you subscribed to the services you wanted to watch or purchased a preprogrammed chip to replace the existing U30 chip and became a PIRATE. The first well documented chip was named The Musketeer chip. You subscribe to one service and you got all of the services (All for one and one for all). It was piracy that drove the market for the dealers and the manufacturers dishes and receivers became short in supply. And many of the large dealers were visited by the FBI and or sued for copyright infringement and criminal piracy. Several smaller dealers committed suicide rather than face time in jail and a large fine which would bankrupt their company and their families. Hard to believe huh ContentsREPAIR SECTIONCautions ..7Diagnostic Flow Chart ..8VideoCipher Repair Procedure ..6Disassembly Procedure ..9Disassembly Procedure Photographs ..11Troubleshooting for Beginners ..32Chip Diagnosis Without an Oscilloscope ..35Advanced Troubleshooting ..36Test point Voltages and Waveforms ..37Troubleshooting Tips ..50Chip Substitutions ..55SOFTWARE SECTIOND.E.S. Sequence ..57Memory Map of U20 V2.4 ..59U30 Subroutines V2.4 ..62U30 Reference Software Listings ..66U7 Reference Software Listing ..193MODIFICATIONSU7 Replacement Modification ..234U7 Jumper Cable ..236U19 Modification ..238Double U30 Socket ..239Add-On Power Switches ..241REFERENCEVideocipher II Schematics ..243Repair Sources ..259TI Reference to Literature ..260EPROM Burner Instructions ..261ARC Utility ..263Glossary of Descrambling Terms ..268MISCELLANEOUSBattery Life Extender ..273Wood Cabinet for the Videocipher ..276Low- Cost Test JIG ..280Low-Cost Tools ..281Required Test Equipment ..282Heat Gun Instructions ..283INDEXCross-Index for Volumes 1 2 3 and 4 ..302Paperback with spiral binding 305 pages