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Digital control board documentation (view source)
Revision as of 21:16, 15 June 2009
, 21:16, 15 June 2009→Channel Descriptions: thru VIN6
|-
|-
| VIN1
| VIN1
| 15
| AD5535/CATHODE
| AD5535/CATHODE
| This is the thermal diode output from the DAC. Should read 4.35V (typical) at 25°C. Drops 2.20mV/°C.
| This is the thermal diode output from the DAC. Should read 4.35V (typical) at 25°C. Drops 2.20mV/°C.
|-
|-
| VIN2
| VIN2
| 14
| +3.3V
| +3.3V
| This is the +3.3V power plane. A reading of other than +3.3V indicates a problem with VR1.
| This is the +3.3V power plane. A reading of other than +3.3V indicates a problem with VR1.
|-
|-
| VIN3
| VIN3
| 13
| +5V
| +5V
| This is the +5V power island. A reading of other than +5V indicates a problem with the +5V power supply.
| This is the +5V power island. A reading of other than +5V indicates a problem with the +5V power supply.
|-
|-
| VIN4
| VIN4
| 12
| ADC_EXT1
| ADC_EXT1
| The trace routes to the backplane via Eurocard pin A7. It is intended to measure the output of thermistor on the amplifier board.
| This trace routes to the backplane via Eurocard pin A7. It is intended to measure the output of thermistor on the amplifier board.
|-
|-
| VIN5
| VIN5
| 11
| +1.2V
| This is the +1.2V power island. This island powers the internal logic of the FPGA. A reading of other than 1.2V indicates a problem with VR3.
|-
| VIN6
| 10
| ADC_EXT2
| This trace routes to the backplane via Eurocard pin A8. It is intended to measure one of the transistor base voltages on the amplifier board.
|}