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1240: Difference between revisions
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It uses either [[P6460]] or [[P6462]] 9-channel probes. | It uses either [[P6460]] or [[P6462]] 9-channel probes. | ||
==Internals== | ==Internals== | ||
The 1240 is built around an Intel 8088 as the control processor with 64K DRAM, and firmware in a bank of EPROMs. A separate I/O processor board is powered by a Z80A CPU. The display controller is built from individual TTL and ECL ICs. | The 1240 is built around an [[Intel 8088]] as the control processor with 64K DRAM, and firmware in a bank of EPROMs. A separate I/O processor board is powered by a Zilog-Z80A CPU. The display controller is built from individual TTL and ECL ICs. | ||
The power supply is a switch-mode supply that mainly generates 5 V at up to 45 A. It requires a minimum load of 11.6 A. Additionally it generates 3 V at up to 8 A with no minimum load and several other voltages that are derived from linear post regulators. | The power supply is a switch-mode supply that mainly generates 5 V at up to 45 A. It requires a minimum load of 11.6 A. Additionally it generates 3 V at up to 8 A with no minimum load and several other voltages that are derived from linear post regulators. | ||