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Model 10U1000
Rev B
19
3.4 CONTROL SYSTEM
3.4.1
A4 Control/Fault Board (Schematic #10042218)
The A4 Control/Fault board consists of one 16-bit microcontrollers and several other ICs that monitor and
indicate the status of the amplifier. Power is supplied using only a single 5-volt power supply. The board
offers the following:
Feature
Quantity
Open drain outputs
4
Digital outputs
6
Digital inputs (5-volt tolerant)
24
Analog outputs
2
2-channel encoder input
1
Inputs for a keypad
6
Display connectors
1
Serial communication jacks
2
3.4.2
A5 Interface Board (Schematic #10020073)
3.5 A10 VOLTAGE REGULATOR BOARD
The A10 Voltage Regulator Board contains two adjustable positive voltage circuits employing Linear
Regulator ICs U4 and U5. U4 accepts a +24 VDC input and outputs the +24 VDC Drain Voltage for the A1
preamp module. U5 accepts a +24 VDC input and outputs the +18.5 VDC supply voltage for the B1 Fan
Assembly.
Содержание 10U1000
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