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MODEL 8559A
TABLE5-1. ADJUSTABLECOMPONENTS
(1
OF
3)
ADJUSTMENTS
Adjustment
Name
GAIN
OFFSET
2nd MIXER MATCH
z
1
22
23
2nd LO FREQUENCY
3
GHz
-
lov
+14.5V
6
GHz C
6
GHz F
MO
DC
FM
REG
OFF
SIG ID
DPM ZERO
VO
+1ov
1 ms
5 ms
XTL
LC
C9
C10
C11
C12
CAL FREQ
LO ADJ
CAL AMPL
SYM
LC CTR
CTR
-
Reference
Designator
A1 A2R28
A1 A2 R29
A5 L2
ASZl
A5Z2
A5Z3
A5Z4
A7 R8
A7R29
A7 R4
1
A7 R47
A7 R7 5
A7 R8 1
A7R83
A7 R92
A8R34
A8R39
A8R40
A8 R6
1
A8R62
A9R2
A9R10
A9Rl3
A9R72
A9R85
A 1 OC9
AlOClO
AlOCll
A10C12
A10C46
A10L12
A10R13
AllC15
A1
1
C23
A1
lC25
Adjustment
Paragraph
Description
-
-
-
Adjusts DPM high indication.
Adjusts DPM low indication.
Adjusts Second Converter output match.
Adjusts First IF
Bandpass Filter Response.
Adjusts First IF
Bandpass Filter Response.
Adjusts First IF
Bandpass Filter Response.
Adjusts Second LO Frequency.
Adjusts YTO low
-
end frequency.
Adjusts
-
lOV Power Supply output.
Adjusts
t14.5V Power Supply output.
Coarse adjusts YTO high
-
end frequency.
Fine adjusts YTO high
-
end frequency.
Adjusted to optimize centering between wide and
narrow frequency spans.
Adusts delay compensation.
Adjusts YTO linearity.
Adjusts varactor bias voltage for proper Second LO
Shift between Regular and Alternate
IF.
Adjusts varactor bias voltage (offset) for Second LO
frequency with Regular IF.
Adjusts Second LO shift for signal identifier
1
MHz
below signal.
Adjusts DPM Driver output for OV with OV input
(offset adjustment).
Adjusts varactor bias voltage (offset) with Alternate
IF
Adjusts +10V Power Supply output.
Adjusts sweep ramp to calibrate 1
ms/DIV sweep time
Adjusts sweep ramp to calibrate 5
ms/DIV sweep time
Adjusts 3 kHz IF bandwidth.
Adjusts 1 MHz IF bandwidth.
Adjusts Second IF
Bandpass Filter Response.
Adjusts Second IF
Bandpass Filter Response.
Adjusts Second IF
Bandpass Filter Response.
Adjusts Second IF
Bandpass Filter Response.
Adjusts CAL OUTPUT frequency.
Adjusts Third LO frequency.
Adjusts CAL OUTPUT amplitude.
Adjusts symmetry of first crystal bandwidth filter
stage.
Adjusts centering of first LC bandwidth filter stage.
Adjusts centering of first crystal bandwidth filter stage