[Digital8 & MiniDV] Q&A-05: DV-in problem. Can you help? Date: Thu, 15 Mar 2001 06:18:08 +0100 From: MK To: Craig Poxon Hi Craig, > able to help. I know you think your English is not great, but I think it is > better than you think it is, so I hope you can understand. Yes, of course. > But I have a few questions. How come the camera appeared to be working for > several days and then broke? I may not have fully disconnected the power > after making the change. Could this have caused the problem? The user > purchased a Studio DV card and said his problems started after he used that, > but I find it difficult to believe that that caused the problems. Camera normaly restarts (reading from EEPROM area) after battery is applied (0v to full power), or: if the battery is on camera and somebody connect power supply in to camera. At that point system will restart (system reset) and the Cheksum is verified! Therefore your camera was operational till one of these events occured. Either your cheksum is false, or your camera need Cheksum with other value becouse of other parameters already switched ON. > When returning the memory to the original state to I change the data in the > same order as above. I assume removing write protection and installing write > protection always come first and last and the checksum must be set after > changing the DVin and record bits, but does the order in which these two are > changed matter. Let the Write enabling to be first, and the Cheksum the last one (folowed by write protection byt!). Anything between does not matter. Most of the D8 camcorders don't need write prot. to be enabled at the end of process. D8 camera will switch that protection automaticly after total reset occur. > Now that the security is preventing the camera from staying on, is it > possible that any other checksum has changed? I intended to get a dump of > the memory using the RM95 software on your website and compare it to the > dump also available to see what is wrong. Dump should be done before ANY attempt to change something in camera. To keep blocked camera a live use DVinLite 1.7 with EMERGENCY button. Try few times, if the function won't switch camera ON at first attempt. After you can do with your camera anything you like. But don't play with power supply before you finished writing data in. Your DUMP: yes, I'm interested in any correct dump of camera that isn't already in our collection, on web server. With regards -- Mijo K., S51KQ http://lea.hamradio.si/~s51kq