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Well that was a waste of $6. Paid for the service manual, got redirected to the download link and...
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#2
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Thats why I dont bother with corrupt pay sites .I dont support their bad corrupt habits,I dont support their retirement .I wait and hopefully a manual will show up on a free site somewhere.Most of the time they download it for free from a free site and put the same manual on their pay site.Some stuff I end up waiting up to a couple of years and it finally shows up on a free site.One thing does drive me nuts on this forum and other forums is somebody says they have a service manual and dont want to share it publicly with the rest of members on this forum or other forums.They say quote" I'll sent it to you PM or Please PM your email and I send it to you". |
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It took about 24 hours but I got an email back from their technical support.
Apparently their datacenter is in Florida, so I'll have to forgive them for the initial unavailability, because it isn't like there's a giant storm rolling through the state or something.... I managed to get the PDF directly emailed to me in the end. It's a 30mb pdf but it is indeed the entire service manual. Unfortunately the CO-V300 and the communications protocol is not discussed. Last edited by MIPS; 09-10-2017 at 03:47 PM. |
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I wonder is there is a way reverse engineer it. Like reading the program off a MCU in the system or something?
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
#5
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If I had access to a working system I could attach a Logic Analyzer and just log the transmitted data as I entered regular commands form the controller. From there it is separating each portion of the command and repacking it for an Arduino to emulate. Or of course, find a CO-V300. As for reading commands directly from the onboard CPU that might be a challenge as the CPU and ROM appear to be integrated into the same chip. There might be data lines leaving the chip for whatever reason but the chip seems custom fabricated, else I would of expected something like an Intel MCS-48. |
Audiokarma |
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Almost like clockwork, a complete system appears on ebay.
The price is a little....eh....but the photos help to shed a tiny amount of additional information on the controller: -The front panel of the controller is quite basic. The remote is not much better, but I wasn't expecting such things as direct frame access or jogging. Perhaps a "hidden feature"? -The controller also goes by the name "Autochanger Commander". This currently results in several hits for other auctions for controllers not compatible with this unit. -The controller has Channel 3/4 RF in and out -The controller supports a "billbox" presumably the devices that accepts money to operate it if necessary. It can be turned off. -The controller has a control line for the amplifier and its pitch and tone bending abilities. -There is composite and stereo RCA outputs. -The controller has the ability to control UP TO FOUR LC-V300 AUTOCHANGERS. IF you were insane enough to have four of them, that means you could cram a library of 288 double sided laserdiscs into your home theater/karaoke bar and never need to touch them. |
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