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2230: Difference between revisions
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(CH 1 and/or CH 2) may be stored in a save ref. memory and recalled for display at a later time. | (CH 1 and/or CH 2) may be stored in a save ref. memory and recalled for display at a later time. | ||
The 2230 | The 2230 features alphanumeric CRT readout of many of the front panel controls. | ||
A DB-9 auxiliary connector on the right side provides an external clock input as well as an analog X-Y plotter output to make permanent copies of the display. This feature can be accessed through the "Mem select" menu. | A DB-9 auxiliary connector on the right side provides an external clock input as well as an analog X-Y plotter output to make permanent copies of the display. This feature can be accessed through the "Mem select" menu. | ||
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The Cursor knob is prone to failure. It becomes jittery and will not scroll properly. | The Cursor knob is prone to failure. It becomes jittery and will not scroll properly. | ||
Options include [[RS-232]] and [[GPIB]] interface boards, which include a 26K battery backed memory (the same options for the 2220 and 2221 do not include the memory). | Options include [[RS-232]] and [[GPIB]] interface boards, which include a 32K (26K available) battery backed memory daughter board (the same options for the 2220 and 2221 do not include the memory). | ||
Recommended cart is the [[K212]]. | Recommended cart is the [[K212]]. | ||
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==Internals== | ==Internals== | ||
The 2230 is controlled by an [[Intel 8088]] microprocessor with firmware in a pair of 27512 EPROMs, and six TMS4426 16K×4 DRAMs. The A/D converter is a Sony CX20052A (8 bit, 20 MHz, ECL output). A pair of MCM2016H 2K×8, 70 ns RAMs serve as acquisition memory. | |||
Custom Tek chips used include [[155-0274-00]] (A1U130, A1U180), [[155-0273-00]] (A2U30, A2U80), and [[155-0022-00]] (A10U2101). There is also a semi-custom part (A10U9208 Display Controller, 156-2452-00). | Custom Tek chips used include [[155-0274-00]] (A1U130, A1U180), [[155-0273-00]] (A2U30, A2U80), and [[155-0022-00]] (A10U2101). There is also a semi-custom part (A10U9208 Display Controller, 156-2452-00). | ||