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AM5(e) Classic Instruction Manual
3.3.7 MONITOR (TX, MEAS, RX) switch: This three position switch selects the
circuit point where the internal amplifier/speaker is connected:
3.3.8 Speaker Volume Control: After the MONITOR switch has been used to select
the monitor point, the Volume control can be turned clockwise to increase the
speaker volume and counter-clockwise to decrease the volume.
NOTE: The speaker is located at the top of the unit near the front.
3.3.9 DISPLAY Key: This key selects whether the data shown in the left-hand and
right-hand display windows represent test signals sent to a circuit under test
(SEND) or test data measurements on the circuit under test (MEAS). Each time
the key is pressed, the SEND or MEAS(ure) LED will come on to indicate which
function has been selected.
3.3.10 Left-Hand 7-Segment Display: This is a red LED display containing four 7-
segment characters with floating decimal point. These characters will indicate
Levels for the SEND or MEASURE Selections in accordance with the LED
indicators to the right of the display (except for Impulse Noise measurements
where they identify the value being displayed in the right-hand 7-Segment
Display).
After the PARAM SEL key is pressed, the characters identify a parameter that
may be set in the right-hand LED display (for those functions that have
parameters). Parameters for MEAS and SEND functions are described in
Sections 6 and 9, respectively.
3.3.11 Left-Hand LED's (dB, dBm,
units of measurement and other information about the current SEND or
MEAS(ure) DISPLAY selection. Refer to the table on the next page:
November 19, 1997
(18-0047)
, mSEC, HOLD TONE): These LEDs provide
dBrn
Page 3-6
DESCRIPTION
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