43
As for analogical circuitry on the board, the J19 connector corresponds to the input of the sensors for machine water and
waste control. These sensors are load cells and they are conditioned by U16 and associated components. The sensor
signal is linearised and amplified and is then redirected to the analogical-digital converters in the microprocessor. There
is also a circuit for conditioning the signal of the thermistor associated to the thermostatation of the rotor that is made up
of the U22 and U28 circuits. The signal used to detect the level is generated by U28. The injection of the signal is done
by J15 and it is collected through the cables that come from the analyzer needle and connect on J29.
There are also different integrated circuits for the encoding of the control signals for all the components that share the
data and address bus (U26, U23, U24 and U36), control signals inversion (U35).
The board has an acoustic alarm.
TP1 - VRAM
TP3 - LOW-LINE
TP4 - RESET
TP6 - WATCHDOG
TP12 - Needle level detector
TP13 - LSO
TP14 - RW
TP20 - CS_EPROM_L
TP21 - CS_RAM_L
TP22 - CSF2_L
TP23 - CSF1_L
TP24 - RD_L
TP25 - CLK system (16 MHz)
TP28 - LWR_L
TP29 - HWR_L
TP30 - Motor chopper frequency
TP36 - Conditioned signal output from the rotor thermistor
TP37 - Analyzer cover
TP39 - Rotor cover
TP40 - CS_FPGA_L
TP44 - INIT_L
TP45 - DONE
TP46 - PROGRAM_L
TP47 - CCLK
TP48 - DIN
TP50 - Z shaft motor vref
TP51 - Y shaft motor vref
TP52 - X shaft motor vref
TP53 - Dispensation/aspiration pump motor vref
TP54 - Filter drum motor vref
TP55 - Rotor motor vref
TP56 - IN1 Needle Peltier Driver
TP57 - EF Needle Peltier Driver
TP58 - IN2 Needle Peltier Driver
TP59 - IN1 Rotor Peltier Driver
TP60 - EF Rotor Peltier Driver
TP61 - IN2 Rotor Peltier Driver
To Next Page
Loading...
Need help?
General