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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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IR remote control coding query
Checking the coding function of the r/c, not something I do very often.
Manufacturer's original for controlling amp,tuner and CD but with 3 different receivers, one for each separate, from one IR controller. The ident "pulse" code for all button presses, was always 101 then one bit that alternated 0 or 1 on each successive keypress , whether the same key or another one, then its inverse as a bit, then 011 then 18 bit function code that was always consistent for the same button. What was this alternating fourth/fifth bit all about? it was normal function by the way -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#2
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IR remote control coding query
N_Cook wrote in message
... Checking the coding function of the r/c, not something I do very often. Manufacturer's original for controlling amp,tuner and CD but with 3 different receivers, one for each separate, from one IR controller. The ident "pulse" code for all button presses, was always 101 then one bit that alternated 0 or 1 on each successive keypress , whether the same key or another one, then its inverse as a bit, then 011 then 18 bit function code that was always consistent for the same button. What was this alternating fourth/fifth bit all about? it was normal function by the way -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ No numeric keypad on this R/C but presumably uses a GP chipset. So avoids say keypresses 123 being misinterpreted as 1123 if the signal is blocked while pressing the 1. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
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