Latch Control; Display If Cal Data - Agilent Technologies 8564EC Service Manual

Latch Control

Latch control is very similar to the DAC control diagnostics except you
can control individual bits. Use state 1 setup (refer to step 1 in
Control").
Table 2-4 Latch Control Recommended Instrument State
Latch
IF Latch 1
IF latch 2
Log Latch 1
Log Latch 2
Log Latch 3
Control 1 Latch
Control 2 Latch
Scan Time Range Latch
Span Attenuator Latch
RF Attenuator Latch
PIN Switch Latch
Offset Lock Loop Latch
RF Latch
*Refer to steps 1 and 3 of
unless

Display IF CAL Data

With the IF CAL data displayed, you can check for control problems
using a logic probe on the latches. You can also check the DAC values.
The DAC values for each filter pole should be within a 32 DAC-count
range.
When you change the spectrum analyzer state, you need to EXIT the
NOTE
"Display IF CAL Data" program and SELECT it again.
Chapter 2
Reference
Designator
A5U808
A5U811
A4U103
A4U104
A4U105
A14U313
A14U417
A14U309
A14U310
A14U406
A14U425
A15U904
A15U903
"DAC Control"
otherwise noted.
Adjustment/Diagnostic Software
To Use the Diagnostics
Recommended
Instrument State*
State 1
State 1
State 1
State 1
State 1
State 1
State 1
State 1
State 1
State 1
State 1
State 1
State 1
for spectrum analyzer state settings,
"DAC
83