Fluke Biomedical 945A - Manual (Page 49)

USER OUTPUT
CONTACTS
FORM C
ALARMS, FAIL,
ECT., ECT.
REGISTER
SELECT
CONTROL SIGNAL BUS
ADDRESS
BUS
DATA
BUS
CONTROL SIGNAL
BUS
ADDRESS
BUS
DATA
BUS
DISPLAY
CONTROL
4006
U71
DISPLAY DATA
400B
U72
CE
CE
CE
RELAY
CONTROL
400C
U44
FAIL TIMER
U47
RELAY
DRIVER
U48
DISPLAY
CONTROLLER
U75
CE
E 2 PROM
4002
U33, U35
E 2 PROM
SERIAL
DATA
CE
COUNTER
CONTROL
400A
U43
HV
CONTROL
COUNTER
CONT
CLEAR
SWITCH
LATCH
CE
STATUS
INDICATORS
4000
U60, U61
FRONT PANEL CONNECTOR
FRONT PANEL BACKLIGHTS & STATUS
INDICATORS
R/W
WRITE
02
CE
BARGRAPH
BARGRAPH
DECODER
4020 - 4025
U5
BARGRAPH
DRIVERS
U50 - U59
DIGITAL TO
ANALOG
CONVERTER
4004
U82
ANALOG
OPTION
BOARD
4 - 20 mA
OUTPUT
4 - 20 mA
OUTPUT USER
ANALOG
OUTPUTS
0 - 10 VOLT
OUTPUT
MAX. 24 SEGMENT RED/GREEN BARGRAPH
FRONT PANEL
CONNECTOR
J2
RELAY
BOARD
FRONT PANEL
CONNECTOR
FRONT PANEL DISPLAY
CE
WRITE
REGISTER
DECODER
U2
Figure 4-2. Page 2 of 3. Block Diagram - Main Circuit Board
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