Al6 SCAN GENERATOR
HSWP
J4
J1
I
>
.
//-
c
DAC
o-1ov
RAMP
415
:ONTROLLER
8
f
ST-5
!
ASA
RAMP CONVERTE
412 FRONT-PANEL INTERFACE
v+
f
SET
RESET
STOP
PROCESSOR
DIGITAL STORAGE PROCESSOR
AJA4
MEMORY
A3A5
DATA
MANIPULATOR
A3A6
MAIN
CONTROL
A3A7
INTERFACE
rYHEN
THE
OUTPUT
OF
THE
COMPARATOR
GOES
HIGH.
THE
RAMP
OAC
REGISTER
AND
THE
SWEEP
ADDRESS
ARE
INCREMENTED
AN0
THE
DISPLAY
DATA
FOR
THAT
MEMORY
LOCATION
IS
“P-DATED.
IF
THE
SWEEP
ADDRESS
EQUALS
THE
MARKER
VALUE
(USUALLY
SET
TO
THE
END
OF
SWEEP
POSITION).
4
RESET
HIGH
SWEEP
OUTPUT.
RSHS.
IS
GENERATED.
1
0
FAST
SWEEP
LINE
EXT
VIDEO
Figure 4. Sweep System Block Diagram
Overall Troubleshooting 15