31 Aug
2010
31 Aug
'10
9:48 a.m.
On 8/31/10 12:25 PM, F.J. Kraan wrote:
Does anyone have some info in the Texas Instruments
SN75413 ? I am
trying to restore the front panel controls of an early Tandy Radio Shack
hard disk (8 MByte!), but cannot find this chip info. The reverse
engineered diagram is at
http://www.xs4all.nl/~fjkraan/comp/trs80m2/driverboard.png, but as I do
not have the pin functions, I cannot connect the lamp and switch part
(this bit is missing) to the board.
There is some info on Radio Shack hard disks online, but not for this
old model. For some more context of the board see
http://www.xs4all.nl/~fjkraan/comp/trs80m2/8megDisk.html.
Sent as attachment in private mail. (lazy today)
-Dave
--
Dave McGuire
Port Charlotte, FL
