7000-series remote control connector
The remote control connector is common for early 7000-series scopes. It is found on the rear of the 7904 (connector J90), 7503/7504, and 7514 scopes (connector J1075) is an Amphenol 165-16 socket.
| Pin | Function | Notes |
|---|---|---|
| A | Single sweep reset | Close to ground within 0.5 V, 10 mA max, minimum 10 μs pulse width |
| B | Ground | |
| C | A Remote ready | +5 V via 47 Ω when active, can drive #49 bulb |
| D | B Remote ready (*) | +5 V via 47 Ω when active, can drive #49 bulb |
| E | Remote readout lock-out (**) | Close to ground within 0.1 V, 2 mA max, 2 V open voltage |
| F | Remote single-shot lock-out (**) | Closure to ground within 0.4 V, pin E was grounded before, rate of change ≥ 0.1 V/μs, 3 mA max, 10 V open voltage |
| H | Upper screen remote erase (***) | Closure to ground within 0.4 V, rate of change at least 1 V/μs |
| J | Lower screen remote erase (***) | Closure to ground within 0.4 V, rate of change at least 1 V/μs |
| K | Remote write thru (***) | Closure to ground within 0.4 V, rate of change at least 1 V/μs |