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Figure 15
J1, Pin 4
(Green Wire)
9 Connect the DVM to measure the voltage between ground (the "N"
10 Adjust R13 for a DVM reading of 0.0 V 25 mV.
11 Connect the DVM to measure the voltage between ground and J1 pin 4
12 Multiply the reading in the previous step by -2.3. Observe the signs.
13 Connect the DVM to measure the voltage between ground and the
14 Adjust R13 for a reading the same as the result obtained in step 12,
15 Disconnect the equipment and reassemble the probe. .
Chapter 3: Service
Making Adjustments
Use the figure below to locate the appropriate measurement points in the
probe power housing.
Probe Power Box Adjustment Locator
connector) and the center of the adjustment pot R13.
(green wire of the cable connector) and record the voltage reading.
_______________mV
This voltage is typically less than 5 mV. Measure it with 10 mV resolution.
_______________mV
output of the probe at the 50-Ω feedthrough.
within 100 mV.
If the adjustment cannot be made, see the "Troubleshooting and Repair"
section in this chapter.
50
R13, Center
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