Agilent Technologies 8564EC Service Manual page 288

ADC/Interface Section
Introduction
Introduction
The ADC/Interface section includes the A1A1 keyboard, A1A2 RPG
(rotary pulse generator), A3 interface,
assemblies. Table 8-1 on page 379
control cable W2. Figure 8-1 on page 380
test connectors on A3.
Keyboard/RPG Problems
Keyboard Interface
RPG Interface ..............................................................page 383
Triggering or Video Gating Problems
Preselector Peaking Control (Real Time DAC)
Flatness Control (RF Gain DACs)
A3 Assembly Video Circuits ........................................
Log Offset/Log Expand
Video MUX ..................................................................page 394
Video Filter ..................................................................page 395
Video Filter Buffer Amplifier
Positive/Negative Peak Detectors
Peak Detector Reset
Rosenfell Detector
ADC MUX ....................................................................page 400
Variable Gain Amplifier (VGA)
Track and Hold
A3 Assembly ADC Circuits
ADC Control Signals
ADC Start/Stop Control
ADC ASM ....................................................................page 405
ADC ..............................................................................page 405
Ramp Counter .............................................................page 406
A3 Assembly Control Circuits
Analog Bus Drivers
Analog Bus Timing
Interface Strobe Select
378
lists signal versus pin numbers for
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illustrates the location of the
Page
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page 391
Chapter 8