1220: Difference between revisions

Latest revision as of 13:46, 14 June 2024

Tektronix 1220
32 channel logic analyzer Tektronix 1220 Produced from 1988 to 1993 Manuals 1220/1225 Operator Manual 1220/1225 Service Manual Learning to use a LOGIC ANALYZER (OCR) ROM images 160-5530-00 160-5531-00 (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 1220 is a logic analyzer introduced in 1988 that supports 16 to 32 channels, 100 MHz asynchronous, 25 MHz synchronous. It is equivalent to the Tektronix 1225 but has two 16-bit probe ports instead of three. It is also very similar to the to the Tektronix 1230.

The 1220/1230 series was an effort by Tektronix to make an "easy to use" logic analyzer aimed at students and engineers. The user interface clearly represents that mindset. The menus are simple and there are help guides everywhere guiding the user in what he might want to do.

The 1220 did not have the same expansion capability that the 1230 had. The only expansion available were the option boards, of which four were available − parallel printer interface, RS-232 interface, GPIB interface, and on-line notes in foreign languages. Tektronix also had a software package (S43R101) that would run on IBM PC compatible machines. A test card was supplied with the analyzer 671-0049-00.

See the Microprocessor support table for microprocessor disassembly configuration options.

Key Specifications

Probes	either P6442, P6443 or P6444 (16-channel)
Number of channels	32 channels
CRT	13 x 10 cm
Power	90-250 V
Weight	8.2 kg (18 lb.)
Features	Composite output RS-232 (optional) Printer port

Internals

The 1220 is built around a 65C02 as the control processor along with SRAM, and 64K of firmware in a bank of EPROMs. There is a separate board under it that manages the display and keypad, which is powered by another 65C02 CPU and is using an MC68A45 CRT controller to drive the display. The display board has 56K of RAM and 8K of ROM, with two coin cell batteries to retain settings.

There is a bug that prevents the 1220 from keeping the date after the year 2000. Upon powering it off and on again it will revert to 19xx, e.g. 2018 will turn into 1918.

The keypad switches have a tendency to become very "bouncy". See the "repair" tab.

Easter egg

An "Easter egg" can be activated in the 1220 by pressing the STOP button when the welcome screen shows during power-up. A bar with the programmers' names will display near the bottom of the screen.

Links

1220 Page on Keith's Electronics Blog

Pictures

Thanks to Keith Neufeld for the pictures!

Components

Some Parts Used in the 1220

Part	Part Number(s)	Class	Description	Used in
MOS Technology 6502	156-1425-00	Monolithic integrated circuit	8-bit microprocessor	1220 • 1225 • 1230 • DC5010

@@ Line 1: / Line 1: @@
-{{Oscilloscope Sidebar|
+{{Instrument Sidebar
-title=Tektronix 1220|
+|class=Logic Analyzer
-image= ''Image needed''|
+|manufacturer=Tektronix
-caption=Tektronix 1220|
+|model=1220
-introduced=1989 |
+|image=1220pic1.jpg
-discontinued=(?) |
+|caption=Tektronix 1220
-summary=32 channel logic analyzer|
+|introduced=1988
-manuals=
+|discontinued=1993
-* [http://toughdev.com/public/tek1225_operator_manual.pdf Tektronix 1220/1225 Operators Manual (Offsite)]
+|summary=32 channel logic analyzer
-* [[Media:Tek1225 operator manual.pdf|Tektronix 1225/1220 operator manual.pdf (Onsite)]]
+|manuals=
+* [[Media:070-6438-02.pdf|1220/1225 Operator Manual]]
+* [[Media:061-3473-00.pdf|1220/1225 Service Manual]]
+* [[Media:070-7219-00.pdf|Learning to use a LOGIC ANALYZER]] (OCR)
+====ROM images====
+* [[Media:160-5530-00.BIN|160-5530-00]]
+* [[Media:160-5531-01.BIN|160-5531-00]]
 }}
-[[Category:Manual needed]]
+The '''Tektronix 1220''' is a logic analyzer [[introduced in 1988]] that supports 16 to 32 channels, 100 MHz asynchronous, 25 MHz synchronous. It is equivalent to the Tektronix [[1225]] but has two 16-bit probe ports instead of three. It is also very similar to the to the Tektronix [[1230]].
-The '''Tektronix 1220''' is a logic analyzer that supports 16 to 32 channels, 100 MHz asynchronous, 25 MHz synchronous. It was introduced in 1989. It is equivalent to the Tektronix [[1225]], the difference being that it has two channels instead of three. It is also very similar to the to the Tektronix [[1230]]. It was one of Tektronix effort to make an "Ease of use" logic analyzer aimed at students and engineers. The user interface clearly represents that mindset. The menus are simple and there are help guides everywhere guiding the user in what he might want to do.
+The 1220/1230 series was an effort by Tektronix to make an "easy to use" logic analyzer aimed at students and engineers. The user interface clearly represents that mindset. The menus are simple and there are help guides everywhere guiding the user in what he might want to do.
+The 1220 did not have the same expansion capability that the [[1230]] had. The only expansion available were the option boards, of which four were available − [[parallel printer interface]], [[RS-232 interface]], [[GPIB interface]], and on-line notes in foreign languages. Tektronix also had a software package (S43R101) that would run on IBM PC compatible machines.
+A test card was supplied with the analyzer [[671-0049-00]].
+See the [[Microprocessor support table]] for microprocessor disassembly configuration options.
-It did not have the same expansion capability that the 1230 had. The only expansion available was the option boards. There was four available: parallel printer port, RS232, GPIB interface and on-line notes in foreign languages. Tektronix also had a software package (S43R101) that would run on IBM PC compatible machines.
 {{BeginSpecs}}
-It uses either [[P6444]] or [[P6443]] 16-channel probes.
+{{Spec | Probes | either [[P6442]], [[P6443]] or [[P6444]] (16-channel) }}
 {{Spec | Number of channels | 32 channels }}
 {{Spec | CRT | 13 x 10 cm }}
@@ Line 27: / Line 39: @@
 {{EndSpecs}}
-==Easter egg==
+==Internals==
+The 1220 is built around a [[MOS Technology 6502|65C02]] as the control processor along with SRAM, and 64K of firmware in a bank of EPROMs. There is a separate board under it that manages the display and keypad, which is powered by another 65C02 CPU and is using an MC68A45 CRT controller to drive the display. The display board has 56K of RAM and 8K of ROM, with two coin cell batteries to retain settings.
+There is a bug that prevents the 1220 from keeping the date after the year 2000. Upon powering it off and on again it will revert to 19xx, e.g. 2018 will turn into 1918.
-Their is an "Easter egg" you can activate. When initially powered up the welcome screen shows, press the STOP button and a bar will show up with the programmers names near the bottom of the screen.
+The keypad switches have a tendency to become very "bouncy". See the "repair" tab.
+===Easter egg===
+An "Easter egg" can be activated in the 1220 by pressing the STOP button when the welcome screen shows during power-up. A bar with the programmers' names will display near the bottom of the screen.
 == Links ==
 * [http://www.neufeld.newton.ks.us/electronics/?p=111|Tek 1220 Page on Keith's Electronics Blog]
+==Pictures ==
 <gallery>
 Tek 1220.jpg
+pic2.jpg
+Tek 1225board5.JPG
+Tek 1225board6.JPG
+Tek 1225board7.JPG
+Tek 1225board3.JPG
 </gallery>
+Thanks to Keith Neufeld for the pictures!
+==Components==
+{{Parts|1220}}
-[[Category: Logic Analyzers]]
+[[Category:Logic analyzers]]
+[[Category:Parallel printer interface]]
+[[Category:RS-232 interface]]
+[[Category:GPIB interface]]