I/O board - is otherwise commonly known as the "SmartCard". The smartcard is the rectangular board to the left of and plugged into the Main board. There are several versions of Smartcards and (for the hp 5971 and hp 5972) after the Smartcard I are all backwards compatible. The Smartcard I can be identified by "Discrete" memory chips soldered directly to the board. All Smartcards NEWER than the Version I, have memory in the form of RAM Sims, much like the RAM memory SIMS found in your desktop personal computer. Go to our page: http://cssco.com/smartcard-id for easy id. The Smartcard is the "Brain" of the mass spectrometer and is in fact a mini computer. It has several micro processors and lots of memory. It is responsible for the HPIB communication, control of the mass spectrometer scanning, data acquisition, data buffering and data manipulating. Troubleshooting of this board is limited to "Initializing" (testing HPIB communication ... SCINIT at the comman line). hard reset - for newer boards, and "Profiling" in manual tune. Profiling with a bad Smartcard (in manual tune) can identify a memory SIM error.
