AVCOM PSA-65C - PSA-65 C Block Diagram

3 2
Horizontal
& Vertical
Deflection
Low Pass
Filter
1500 MHz
4 Cavity
Filter
RF
Attenuator
REFERENCE
LEVEL
Yoke
CRT
High
Voltage
HORIZ
POSIT.
FRONT PANEL
VERT.
POSIT.
INTENS
dB/DIV
FRONT PANEL
Cavity
Oscillator
1489.205
Cavity
Oscillator
Calibration
0-1250
MHz
VCO
1.5-2.75 GHz
Ramp
Generator
FRONT PANEL
SWEEP VAR
SPAN
SPAN
Ctr. Freq.
TUNING
Prescaler
Frequency
Counter
LCD
DOWNCONVERTER ASSEMBLY
Log
Amp
Attenuator
PCB
PSA-65C BLOCK DIAGRAM
FM
Demod
FRONT PANEL
Speaker
1
0
.
7
M
H
z
F
i
l
t
e
r
3
-
4
M
H
z
B
W
1
0
.
7
M
H
z
F
l
t
e
r
1
0
K
H
z
B
.
W
(
O
p
t
i
o
n
a
l
)
HORIZONTAL RAMP
BLANKING PULSE
1
0
.
7
M
H
z
V
a
r
i
a
b
l
e
B
W
F
i
l
t
e
r
Audio Vol
ON/OFF
AM Detector