Agilent Technologies 8564EC Service Manual page 68

Adjustment/Diagnostic Software
To Use the Diagnostics
6. Select the PC board that includes the DAC of interest, then select
7. Use SELECT to set single values. (The default for entries is decimal,
8. Use ADJUST for continuous changing of the DAC value. Position the
9. The UP, DOWN, and RAMP keys can also be used to exercise the
Table 2-3 DAC Control Recommended Instrument State
DAC
Intensity DAC
Focus DAC
LOMA Power DAC
LOMA Gate Bias DAC
LOMA Sampler Power DAC
LOMA SBTX Power DAC
YTO Fine DAC
YTO Coarse DAC
YTF Slope DAC
YTF Offset DAC
SBTX Bias DAC
Sampler Amplifier Gate Bias
DAC
Main Coil Tune DAC
Scan Ramp DAC
Span DAC
Sweep Generator DAC
RF Gain A DAC
*Refer to steps 1 and 3 of
otherwise noted.
80
the DAC.
but hexidecimal or binary can entered by appending either an "H" or
a "B", respectively. For example, "A2H" or "10100010B".)
arrow-tipped cursor to select the digit to be changed.
DAC.
"DAC Control"
Reference Recommended Instrument
Designator State*
A2U212A State 1
A2U212B State 1
A14U601A State 1
A14U601B State 1
A14U601C State 1
A14U601D State 1
A14U301A State 1
A14U301B State 1
A14U409A State 1
A14U409B State 1
A14U424A State 1
A14U424B State 1
A14U314 Refer to "Check main coil tune DAC
(steps 47-49)"
YTO PLL"
A14U316 State 2
A14U315 State 2
A14U307 State 2
A3U417A Refer to "Flatness Control (RF
Gain DACs)"
for spectrum analyzer state settings, unless
under "Unlocked
Chapter 11 ..
in
Chapter 8 .
in
Chapter 2