CI-700

I am repairing several bad CI-700 drive contollers. The hardware is all functioning and the only problem is the flash memory in the AT89c52 micro-controller is corrupt. I tried to read out a good AT89c52 but the flash memory area is locked. Does anyone know where I can find a copy of the HEX file. I sent an e-mail to Celestron eventhough I know they no longer support the CI-700, and have heard nothing, "go figure".

I hope someone can help me out.

John

I am still looking for help and information with the CI-700 drive.

"I am repairing several bad CI-700 drive contollers. The hardware is all functioning and the only problem is the flash memory in the AT89c52 micro-controller is corrupt. I tried to read out a good AT89c52 but the flash memory area is locked. Does anyone know where I can find a copy of the HEX file. I sent an e-mail to Celestron eventhough I know they no longer support the CI-700, and have heard nothing, "go figure". Bv(

Does anyone know if the drive was manufactured by an outside source like Tangent Instruments for Celestron?

I hope someone can help me out.

John

I can't help with the chips but I know a guy who has a few CI-700 boards and a complete controller unit (though I believe he said the RA output doesn't work). Here's his website: http://www201.pair.com/resource/astro.html/teletrade/

GL!