PLease ID CD-ROM unit

OK, I finally brought the thing home. The 37 pin connector is wired as follows: Pins 1-17 are the only ones attached to something It's fairly difficuly to trace, the traces keep switching sides of the board and stuff... 1-4 are wired to 2-5 of 74LS245, then go on to 2-5 of 74LS541 Some others as well, I'll give you the exact pins if you want. The 8255-AC5 is mostly attached to the above-listed chips. The drive box is a DATEXT Model DTX-10, released April 1986. Inside, it has the drive itself, and two 9" X 9" boards. The bottom one seems to be simply hardware stuff - nothing but resistors, amplifiers, etc. The top one is the one with the centronics connector. It has 12 TC40H***P chips. Also, some 74LS***P chips. Also, there are two huge chips, 60-pin or something. These are HD61Z002 and HD63701XOP. All chips are Hitachi-labelled. There is also a 34.5774 MHz crystal. Lastly, an EPROM w/the window covered over. I hope it's OK that I lifted the tape. It's MBM2732A-30. The only big chip on the bottom board is an HA12049A. I hope this gives you some idea. I have a VOM and a poorly working 'scope if you need any of that to figure this out ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com