VINTAGE~ TEKTRONIX 1240 LOGIC ANALYZER INTEL 8088, ZILOG Z80A CPU

Description

FOR YOUR CONSIDERATION - VINTAGE~ TEKTRONIX 1240 LOGIC ANALYZER INTEL 8088, ZILOG Z80A CPU -
pOWERS RIGHT ON THE FAN STARTS , THE BUSINESS HAD A PIECE OF TAPE ON THIS SHOWING USE FOR PARTS ONLY - i SEEN " FRONT PANEL FAIL " THE THE SCREEN OF THE THE UNIT - THE REST PASSED. THE COVER HAS A FEW IN DENTS AND THE SIDE PLASTIC PANEL DOESN'T FIT PROPERLY AND THERE IS A DENT THERE. . tHERE IS A FEW MISSING SCREWS . tHIS COULD BE A GREAT INVESTMENT CONSIDERING THESE COST 4500.00 IN THE LATE 1980s . tHERE IS SOME PAINT ON THE TOP . i DON'T KNOW HOW TO USE THIS AND DON'T HAVE ANYMORE INFO THAN DESCRIBED.
PLEASE ZOOM IN TO SEE EXACT CONDITION OF ITEM . SELLING FOR PARTS/REPAIR/RESTORATION AND AS IS
HERE'S SOME INFO ABOUT THIS UNIT OFF THE INTERNET - I AM NOT IMPLYING THAT MY ITEM IS EXACT TO INFO SHARED BELOW.
The
Tektronix 1240
is a logic analyzer, introduced in 1984. The
1241
is the same device but with a color-shutter CRT, it was introduced in 1986.
Specifications
The 1240/1241 accommodate one to four acquisition boards of type
1240D1
with 9 channels or
1240D2
with 18 channels for a total of up to 72 acquisition channels. Acquisition speeds reach up to 100 MHz asynchronous or 50 MHz synchronous. The 1240/41 provides 14 levels of triggering with conditional branching.
There are two cartridge interfaces. One is for I/O devices; three were produced. The
1200C01
is the RS232C Comm pack. The
1200C02
is the GPIB comm pack. The
1200C11
is the parallel printer comm pack. It required the
12RC01
Printer Support ROM pack. The other cartridge interface was memory specific and was for ROM and RAM packs. Both 8K and 64K RAM packs with battery backup were made, note that the battery is a potential HazMat made by Catalyst Research and may destroy the cartridge when it leaks. There were also ROM packs that allow for mnemonic disassembly and state analysis of most microprocessors of the time. The ROM packs were made with a generic PCB that had two socketed ROMS and jumpers to select the size.
See the
Microprocessor support table
for processor configuration options.
There is a design for a multipurpose RAM/ROM pack, called SuperPack by Pavel Korensky. Note the errata in the
README file
.
It uses either
P6460
(general purpose) or
P6462
(TTL) 9-channel probes.
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
Zilog Z80
A 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.
The CPU board has battery backed up RAM to save the current configuration and one user configuration. This battery is a lithium iodide cell. It will eventually fail and leak, damaging the PCB. The battery is visible on the picture for the A09 processor board.