Pick Up Control unit - Specification
Inputs :
All the inputs at connector CON-1 (25pin SUB-D) is pulled up with a 4K7 resistor to +5V. For more details se the pages about the remote control of the PCB.
Power input : The PCB use 0mA on -6V, 190mA on +6V and 40mA on +24V with no connection on the inputs and outputs.
Outputs :
To the multiplexer-A :
The outputs is a open collector (7407), | To the multiplexer-B :
The outputs is a open collector (7407), |
To the eight Pick Up amp. :
| Burndy8 (female) | CON-4 | . | . |
| Pin : | Function : | In / Out | Description |
| 1 | GND | out | . |
| 2 | + 24V | out | The + 24V output is protected with a 0.5A fuse |
| 3 | . | . | . |
| 4 | TEST - | out | The TEST- output is relæ ther is pulling the output to GND (I max. = 1A) |
| 5 | TEST COM | out | The TEST COM output is relæ ther is pulling the output to GND (I max. = 1A) |
| 6 | TEST + | out | The TEST+ output is relæ ther is pulling the output to GND (I max. = 1A) |
| 7 | + 6V | out | The + 6V output is protected with a 0.5A fuse |
| 8 | - 6V | out | The - 6V output is protected with a 0.5A fuse |
To see how the outputs is controlled goto Diagram & comment.
Last Modified 11 January 2019