Monitor Audio Vector Service Manual download pdf (Page 97)

Adjustment Procedures: Digital Section

WFM90D and WFM91D Service Manual

5-13

Cable Margin

Perform the following steps to adjust the cable margin indicator (you are

adjusting the value at which the cable flag comes on to 200 meters):

1. Connect the output from the digital signal generator to the WFM90D or

WFM91D through the cable clone. Set the cable clone to simulate 200 me-

ters of Belden 8281 cable.

2. Select CABLE LEN from the Calibration menu, and then select CAL.

Two values are displayed in the upper right corner of the screen: cable length

calibration (CABLE LEN CAL) and cable reading.

NOTE. These displayed values are representative of cable length, but do not

equate directly to meters. A higher reading indicates a shorter cable.

3. Adjust the arrow buttons until the CABLE LEN C AL value matches the

CABLE READING value. The up and down arrow buttons adjust the value

by +1 and --1; the left and right arrow buttons adjust the value by +5 and --5.

4. Select DG CAL MENU, and then select SAVE.

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Monitor Audio Vector Service Manual Page 97