Raytheon Pathfinder 1200 Instruction Manual page 72

39) Converter Circuit
The converter circuit converts the 17 V de output of AVR into four levels of
voltage which are required for the scanner and the display unit operation. The outputs
are -5 V, +5 V, +12 V, and +330 V de.
Bearing Pulse
J
Horizontal SYNC Output
Bearing Pulse Gene. Output..J
I
Main Trig. Gene. Output
--"
n
Transmitter Trig. Gene.
-J
ij
Output
Charging Wave Form of
PFN
MOD pulse of Magnetron
r
f
Magnetron
d.
Output
-1
Gate Gene. Output
J l
n
Video RAM Write Gate
Horizontal SYNC Pulse
IIL... _
Horizontal Blank Gate
SHM Pulse
Vertical SYNC Pulse
Vertical Blank Gate
SHM Gate
n nL..- _
~
~
FIG. 6-1 OVERALL TIMING TABLE
6-7
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