TDS540
The Tektronix TDS540 is a 500 MHz, 1 GS/s quad-channel digital scope introduced in 1992.
The TDS540 uses an amplifier IC, U1000, U1200, U1300, and U1400, part number 155-0378-00, which is a packaging of the M377.
Key Specifications
| Bandwidth | 500 MHz |
|---|---|
| Rise time | 700 ps |
| Sample rate | 1 GS/s (only 1 ch ) / 500 MS/s (only 2 ch) / 250 MS/s (all ch) |
| Time base | 500 ps/Div to 10 s/Div |
| Deflection | 2 mV/Div to 200 mV/Div (Opt. 1D: 1 mV/Div to 100 mV/Div) |
| Resolution | 8 bits / 12 bits (HI-RES Mode) |
| Record length | 500 to 15 k points ( Opt. 1M: 50 k points) |
| Input impedance | 1 MΩ / 50 Ω |
| Interface | GPIB standard |
| Options 13 |
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Options
- 05 - Video Trigger
- 13 - RS-232/CENTRONICS HARDCOPY INTERFACE.
- 1K - K420 Oscilloscope Cart without power strip
- 1M - 50k Memory Length
- 1R - Rackmount
- 23 - Add two each P6205 Active Probes
- 25 - Add P6563A, four SMD probes
- 2F - ADVANCED DSP MATH
Repair issues
A common failure reason on early TDS-family scopes are surface-mounted capacitors leaking corrosive electrolyte.
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crusty solder joint of surface-mounted electrolytic capacitor. It is a alarm sign.
Pictures
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SMD caps recapped Acquisition-Board "A10"
Part numbers of included PCB by TDS540
| Part No | Description | Modul numbers |
|---|---|---|
| 672-1476-0x | Acquisition board | A10 |
| 672-2045-0x | Acquisition board (1M Option) | A10 |
| 671-1477-01/02 | DRAM/CPU/Display board (1M Option) | A11 |
| 671-2002-01/02 | DRAM/CPU/Display board | A11 |
| 614-0890-00 | Front panel assembly | A12 |
| 614-0896-00/01 | Front panel assembly | A12 |
| 671-1701-00/01 | Firmware board | A13 |
| 671-1568-00 | D1 Bus | A14 |
| 119-4092-0x | Attenuator assembly | A15 |
| 119-3371-0x | Power supply unit | A16 |
| 119-4415-0x | Power supply unit | A16 |
| 640-0071-00/01 | CRT Display assembly | A20 |
Assembly part numbers
| Assy | Description | TDS540 P/N | TDS540A P/N | TDS540B P/N | TDS540C P/N | TDS540D P/N |
|---|---|---|---|---|---|---|
| A10 | Acquisition board | 672-1476-0x | 672-1408-xx | - | 671-4039-01 | |
| A10 | Acquisition board (1M Opt.) | - | - | - | 671-4041-00 | |
| A11 | DRAM/CPU/Display board | 671-2002-01/02 | 671-2771-xx | - | 671-4002-00 | |
| A11 | DRAM/CPU/Display board | 671-1477-01/02(1M Opt.) | - | - | 671-4171-00 | |
| A12 | Front panel assembly | - | 614-2469-xx | - | 614-0935-03 | |
| A12 | Front panel assembly | - | - | - | 614-0937-02 | |
| A13 | Firmware board | 671-1701-00/01 | - | - | - | |
| A14 | D1 Bus | 671-1568-00 | 671-2846-xx | - | 671-2847-00 | |
| A14 | D1 Bus (Opt. 05) | - | - | - | 671-2848-00 | |
| A15 | Attenuator assembly | 119-4092-0x | - | - | - | |
| A16 | Power supply unit | 119-3371-0x | - | - | 620-0063-04 | |
| A16 | Power supply unit | 119-4415-0x | - | - | - | |
| A20 | CRT Display assembly | 640-0071-00/01 | 640-0071-xx | 640-0071-06 | 640-0071-06 | - |
| A23 | RS232/Centronics assembly | 640-2437-00 | 640-2437-00 | 640-2437-00 | 640-2437-00 | - |