1240: Difference between revisions
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image=Tektronix_1240_front_panel.jpeg| | image=Tektronix_1240_front_panel.jpeg| | ||
caption=Tektronix 1240| | caption=Tektronix 1240| | ||
introduced= | introduced=1983 | | ||
discontinued=(?) | | discontinued=(?) | | ||
summary=Modular Logic Analyzer | | summary=Modular Logic Analyzer | | ||
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==Specifications== | ==Specifications== | ||
The 1240/1241 provide up to 72 acquisition channels (one to four acquisition boards with 9 or 18 channels each) at acquisition speeds up to 100 MHz asynchronous or 50 MHz synchronous, 14 levels of triggering with conditional branching. | The 1240/1241 provide up to 72 acquisition channels (one to four acquisition boards with 9 or 18 channels each) at acquisition speeds up to 100 MHz asynchronous or 50 MHz synchronous, 14 levels of triggering with conditional branching. | ||
Exchangeable ROM cartridges allow for mnemonic disassembly and state analysis of most microprocessors of the time. | |||
==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 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. | ||
Revision as of 09:11, 1 July 2017
The Tektronix 1240 is a logic analyzer. The 1241 is the same device but with a color-shutter CRT.
Specifications
The 1240/1241 provide up to 72 acquisition channels (one to four acquisition boards with 9 or 18 channels each) at acquisition speeds up to 100 MHz asynchronous or 50 MHz synchronous, 14 levels of triggering with conditional branching.
Exchangeable ROM cartridges allow for mnemonic disassembly and state analysis of most microprocessors of the time.
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 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.
Boards are two to six layers.
Links
- Tektronix 1240 / 1241 @ barrytech.com
Pictures
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Tektronix 1240, front view
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Self test display
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State table view
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Timing diagram view
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Rear panel (note second power switch)
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Side with probe panel
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Tek 155-0270-00 probe data interface hybrid (one of three)
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A06 CRT drive board (also includes comms pack interface)
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A06 CRT drive board (rear side)
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A07 Power supply
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A07 Power supply (rear side)
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A07 Power supply low voltage regulators
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A08 Interface board
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A08 Interface board (rear side)
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A09 Control processor board
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A09 Control processor board (rear side)
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A10 I/O processor board
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A10 I/O processor board (rear side)
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A11 Display generator board
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A11 Display generator board (rear side)
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A14 Trigger board
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A14 Trigger board (rear side)
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A15 9 channel board
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A15 9 channel board (rear side)
