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ESG Family Signal Generators Assembly-Level Troubleshooting with Block Diagrams
A23 Sampler ABUS Nodes (ESG-AP & ESG-DP Series)
Service Guide 2-55
A23 Sampler ABUS Nodes (ESG-AP & ESG-DP Series)
NOTE The node voltages given in the following table are approximate values based
on a sample of signal generators. Your signal generator may not reflect these
exact values. Additionally, the resolution of these values varies from node to
node. As a guideline, interpret your measurements based on the number of
decimal places shown for the expected voltage.
A23 Sampler ABUS Nodes (ESG-AP & ESG-DP Series)
Test Conditions:
PRESET; 0 dBm; RF On;
No Modulation
Node Voltages (Corrected Values in Vdc)
YO_PHSLK
8V
P525V
P4_5
AGND
VCO_TUNE
(5.5 to 12)
VCO_BIAS
(4 to 7.5)
≈−4 to
2
(varies
w/ freq)
8 5 4.5 0
Freq 0.25 MHz 10 6
Freq 750 MHz 95
Freq 1 GHz 10 6
Freq 1.001 GHz 75
Freq 2 GHz 10 6
Freq 2.5 GHz 85
Freq 4 GHz 10 6