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{{Oscilloscope Sidebar | {{Oscilloscope Sidebar | ||
|manufacturer=Tektronix | |manufacturer=Tektronix | ||
|series= | |series=2000-series scopes | ||
|model=2245 | |model=2245 | ||
|summary=100 MHz portable 4-channel scope | |summary=100 MHz portable 4-channel scope | ||
|image=Tek2245.jpg | |image=Tek2245.jpg | ||
|caption=Tektronix | |caption=Tektronix 2245A | ||
|introduced=1987 | |introduced=1987 | ||
|discontinued=1995 | |discontinued=1995 | ||
| Line 11: | Line 11: | ||
|manuals= | |manuals= | ||
'''2245''' | '''2245''' | ||
* [[Media:070-6167-00.pdf|2245 Operators manual]] | * [[Media:070-6276-00.pdf | 2245 Service, April 1987 Edition ]] | ||
* [[Media:tek_2245_2246 specs.pdf|2245/2246 Specifications]] | * [[Media:070-6167-00.pdf | 2245 Operators manual ]] | ||
* [[Media:tek_2245_2246 specs.pdf | 2245/2246 Specifications ]] | |||
'''2245A''' | '''2245A''' | ||
* [[Media:070-6558-01.pdf|2245A Operators manual]] | * [[Media:070-6558-01.pdf | 2245A Operators manual ]] | ||
* [[Media:070-6557-00.pdf|2245A Service Manual 070-6557-00]] (124MB) | * [[Media:070-6557-00.pdf | 2245A Service Manual 070-6557-00 ]] (124MB) | ||
* [[Media:070-7672-00.pdf|2245A Service Manual 070-7672-00, SN B016000-up]] | * [[Media:070-7672-00.pdf | 2245A Service Manual 070-7672-00, SN B016000-up ]] | ||
* [[Media:2252_2247A_2245A_Specs.pdf|2245A/2247A/2252 Specifications]] | * [[Media:2252_2247A_2245A_Specs.pdf | 2245A/2247A/2252 Specifications ]] | ||
'''alternate copies''' | '''alternate copies''' | ||
* [ | * [https://www.ko4bb.com/manuals/download.php?file=Tektronix/Tektronix_-_2245A/Tektronix_2245_2246_Specification.pdf Tektronix 2245/2246 Specifications ] | ||
* [ | * [https://www.ko4bb.com/manuals/download.php?file=Tektronix/Tektronix_-_2245A/Tektronix_2245A_Oscilloscope_Service_Manual.pdf Tektronix 2245A Service Manual ] | ||
* [ | * [https://www.ko4bb.com/manuals/download.php?file=Tektronix/Tektronix_-_2245A/Tektronix_2245A_2247A_OPT15.pdf Tektronix 2245A Option 15 Manual ] | ||
{{ROM Images}} | |||
'''2245A''' | |||
* A16U2408 [[Media:160-5391-00.bin|160-5391-00]] | |||
* A16U2519 [[Media:160-5063-09.bin|160-5063-09]] / [[Media:160-5063-04.bin|160-5063-04]] / [[Media:160-6500-02.bin|160-6500-02]], [[Media:160-6500-00.bin|160-6500-00]] | |||
* A16U2400 [[Media:160-3493-00.bin|160-3493-00]] SC84477P PDIP28 (68HC705?) | |||
}} | }} | ||
The '''Tektronix 2245''' is a 100 MHz four-channel analog oscilloscope, introduced in 1987 (2245A in 1988). | The '''Tektronix 2245''' is a 100 MHz four-channel analog oscilloscope, introduced in 1987 (2245A in 1988). | ||
| Line 29: | Line 35: | ||
Channels 1 and 2 are full-featured, whereas 3 and 4 are limited in both deflection factor and coupling, as they are intended mainly for digital and trigger signals. | Channels 1 and 2 are full-featured, whereas 3 and 4 are limited in both deflection factor and coupling, as they are intended mainly for digital and trigger signals. | ||
The 2245 includes features like AUTO SETUP which automatically adjusts vertical, horizontal, | The 2245 includes features like AUTO SETUP which automatically adjusts vertical, horizontal, triggering and display controls to provide a stable, triggered display of the waveform in seconds. It offers a dual time base with delayed sweep, and cursor time/voltage measurements with on-screen readout of cursor data and scale factors. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
| Line 48: | Line 54: | ||
==Repair Information== | ==Repair Information== | ||
* [[224x PSU Repairs|2245 Power Supply Repair Information]] | * [[224x PSU Repairs | 2245 Power Supply Repair Information ]] | ||
==Links== | ==Links== | ||
[https://groups.io/g/TekScopes/topic/7646896 Backup Battery in Tek 2245A] | [https://groups.io/g/TekScopes/topic/7646896 Backup Battery in Tek 2245A ] | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
US Tektronix 2245A FrontRAW.JPG|2245A | Tek2245.jpg | 2245 | ||
US Tektronix 2245A FrontRAW.JPG | 2245A | |||
Tek 2245a 4trace.jpg | Tek 2245a 4trace.jpg | 2245A | ||
Tek 2245a square trace.jpg|2245A | Tek 2245a square trace.jpg | 2245A | ||
</gallery> | </gallery> | ||
{{ | ==Components== | ||
{{ | {{Parts|2245}} | ||
{{Parts|2245A}} | |||
[[Category:2246 series scopes]] | [[Category:2246 series scopes]] | ||
Latest revision as of 09:16, 5 June 2024
The Tektronix 2245 is a 100 MHz four-channel analog oscilloscope, introduced in 1987 (2245A in 1988).
Channels 1 and 2 are full-featured, whereas 3 and 4 are limited in both deflection factor and coupling, as they are intended mainly for digital and trigger signals.
The 2245 includes features like AUTO SETUP which automatically adjusts vertical, horizontal, triggering and display controls to provide a stable, triggered display of the waveform in seconds. It offers a dual time base with delayed sweep, and cursor time/voltage measurements with on-screen readout of cursor data and scale factors.
Key Specifications
| Bandwidth | 100 MHz |
|---|---|
| Deflection | CH 1, CH 2: 2 mV/div to 5 V/div in 1-2-5 seq; CH 3, CH 4: 0.1 V/div and 0.5 V/div, all ±2%; BW limit: 20 MHz ±15% |
| Vertical modes | CH1,2,3,4, CH2 Invert, Add, Alt, Chop (625 kHz) |
| Input impedance | 1 MΩ ±1.0% // 20 pF ±1 pF |
| Maximum input | 400 V DC + peak AC, or 800 Vp-p at ≤ 10 kHz) |
| Sweep | A Time Base: 0.5 s/div to 20 ns/div in 1-2-5 seq; B Time Base: 5 ms/div to 20 ns/div in 1-2-5 seq (×10 magnifier to 2 ns/div) |
| Trigger | DC, Noise Reject, HF Reject, LF Reject, AC, TV Line, TV Field |
| Trigger modes | A Mode: Auto Level, Auto, Norm, TV Line, TV Field, Single Seq. B Mode: Runs After Delay, Auto Level, Norm, TV Line (From A Source) |
| Cursors | Time, Volts |
| Interface | Ext Counter/Timer Base Input connector; Ext Z-Axis Input connector |
| CRT | Acceleration 16.4 (−2.7/+13.7) kV |
| Probes | Two P6109 100 MHz ×10 probes, BNC connector with a readout pin |
| Power | 90 − 250 VAC, 48 − 445 Hz; 100 W max. |
Repair Information
Links
Pictures
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2245
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2245A
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2245A
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2245A
Components
Some Parts Used in the 2245
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| M377 | 165-2129-03 • 165-2089-06 • 155-2089-05 | Monolithic integrated circuit | amplifier | 11A16 • 11A32 • 11A33 • 11A34 • 11A52 • 2245 • 2245A • 2247 • 2247A • 2252 • TDS410 • TDS420 • TDS460 • TDS520D • TDS540D • TDS580D • TDS680C • TDS684C • TDS714L • TDS724D • TDS754D • TDS784D |
Some Parts Used in the 2245A
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 155-0322-00 | 155-0322-00 | Monolithic integrated circuit | vertical output amplifier | 2245A • 2246 |
| 156-2654-00 | 156-2654-00 | Monolithic integrated circuit | ECL "fast logic" | 2245A • 2246 |
| 156-2655-00 | 156-2655-00 | Monolithic integrated circuit | "slow logic" | 2245A • 2246 |
| 165-2232-01 | 165-2232-01 | Hybrid integrated circuit | buffer amplifier | 2245A |
| 234-0203-20 | 234-0133-20 • 234-0203-20 • 234-0238-20 | Monolithic integrated circuit | amplifier | 2245A • 2246 |
| 234-0401-20 | 234-0401-20 • 234-0401-21 | Monolithic integrated circuit | horizontal preamplifier | 2245A • 2246 |
| Intel 8086 | Monolithic integrated circuit | 16-bit microprocessor | 1240 • 2220 • 2221 • 2230 • 2246 • 2232 • 2245A • 2782 • 4114 • 4115 | |
| M376-004 | 234-0204-20 • 234-0239-30 • 234-0239-31 | Monolithic integrated circuit | trigger | 2245A • 2246 |
| M377 | 165-2129-03 • 165-2089-06 • 155-2089-05 | Monolithic integrated circuit | amplifier | 11A16 • 11A32 • 11A33 • 11A34 • 11A52 • 2245 • 2245A • 2247 • 2247A • 2252 • TDS410 • TDS420 • TDS460 • TDS520D • TDS540D • TDS580D • TDS680C • TDS684C • TDS714L • TDS724D • TDS754D • TDS784D |
| T4656 | 154-0905-00 | CRT | CRT | 2245A • 2246 • 2246A • 2247A |