2245: Difference between revisions
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'''2245''' | '''2245''' | ||
* | * [[Media:070-6276-00.pdf|2245 Service, April 1987 Edition]] (OCR) | ||
* [[Media:070-6167-00.pdf|2245 Operators manual]] | * [[Media:070-6167-00.pdf|2245 Operators manual]] | ||
* [[Media:tek_2245_2246 specs.pdf|2245/2246 Specifications]] (OCR) | * [[Media:tek_2245_2246 specs.pdf|2245/2246 Specifications]] (OCR) | ||
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[[Category:2246 series scopes]] | [[Category:2246 series scopes]] | ||
Revision as of 01:15, 28 April 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, and 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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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 |