HP 8559A Operation And Service Manual page 106

Spectrum analyzer
Hide thumbs Also See for 8559A:
Table of Contents

Advertisement

ADJUSTMENTS
Adjustment
Name
LC CTR
CTR
C73 (LC DIP)
C74 (LC DIP)
LC
XTL
R F GAIN
20D (20 dB)
40D (40 dB)
LC CTR
CTR
SYM
LC CTR
CTR
C73 (LC DIP)
C74 (LC DIP)
LC
XTL
OFFSET
TC
SLOPE
G6
G 5
LIN
TABLE 5-1. ADJUSTABLE COMPONENTS (2 OF 3)
Reference
Adjustment
Designator
Paragraph
A l l R26
A1 3C38
A1 3C74
A l4R3O
A1 4R34
A1 4R69
Description
Adjusts symmetry of second crystal bandwidth filter
stage.
Adjusts centering of second LC bandwidth filter stage
Adjusts centering of second crystal bandwidth filter
stage.
Dip adjusts first LC bandwidth filter stage.
Dip adjusts second LC bandwidth filter stage.
Adjusts LC feedback of bandwidth filter.
Adjusts crystal feedback of bandwidth filter.
Adjusts overall gain of step gain amplifiers.
Adjusts 10 dB step gain amplifier.
Adjusts first 2 0 dB step gain amplifier.
Adjusts second 20 dB step gain amplifier.
Adjusts centering of first LC bandwidth filter stage.
Adjusts centering of first crystal bandwidth filter
stage.
Adjusts symmetry of second crystal bandwidth filter
stage.
Adjusts centering of second LC bandwidth filter stage
Adjusts centering of second crystal bandwidth filter
stage.
Dip adjusts first LC bandwidth filter stage.
Dip adjusts second LC bandwidth filter stage.
Adjusts LC feedback of bandwidth filter.
Adjusts crystal feedback of bandwidth filter.
Adjusts -8V temperature compensated supply.
Adjusts gain of +1V supply to provide temperature
compensation for log mode temperature controlled
variable gain amplifier. (Factory adjustable only.)
Adjusts gzin of log mode temperature controlled gain
amplifier.
Adjusts combined gain of 2nd and 3rd stages in linear
mode.
Adjusts gain of 4th stage in linear mode.
Adjusts gain of 5th stage in linear mode.
Adjusts combined gain of 6th and 7th stages in linear
mode.
Adjusts shape of log fidelity curve at -10 dB.
Adjusts shape of log fidelity curve at -30 dB.
Adjusts voltage at A l4TPl for approximately +1 V.
(Factory adjustable only.)
MODEL 8559A

Advertisement

Table of Contents

Troubleshooting

loading

Table of Contents