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GB1400 User Manual I-5
CLOCK SYNTHESIZER
CLOCK DIVIDER
& DISTRIBUTION
EXT CLK
CLOCK/4 OUT
CLOCK OUT
CLOCK OUT
AMPL
OFF
PRN GEN
4:2 MUX
WORD GEN
ERROR
INJECT
PATTERN SYNC
DATA INVERT
DATA
OUT
OFF
AMPL
DATA OUT
DATA INHIBIT
CPU BUS
EXTERNAL
ERROR INJECT
FRONT
PANEL
2 x 24 LCD
DISPLAY
CPU
NON-VOLATILE
RAM
POWER
SUPPLY
DC OUT
AC INPUT
PHASE A
PHASE B
REAR
PANEL
BATTERY
CLK
CLK
CLK CLK
CLK
CLK
SYNC
EXT
D
Q
Q
R
_
CPU BUS
CLOCK/2
GB1400 Tx
0.1uf
50 Ohm
F
F
F
_
F/4
Figure I-1. Block Diagram - GB1400 TX