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Performance Verification
AM700 Audio Measurement Set Service Manual
4–5
Verify Power Supply Operation
Check the power supply at the appropriate line voltage setting for its normal use.
1. Check that the Line Selector switch is set for 115 V operation.
2. Connect a 115 V power source.
3. Set the rear panel supply push button on/off switch S1 to the on position.
4. Press the Stby/On switch to turn on the AM700 (Green Indicator seen in
switch).
5. Check that the instrument powers up normally and that the fan is exhausting
air.
1. Check that the Line Selector switch is set for 230 V operation.
2. Connect a 220 V power source.
3. Set the rear panel supply push button on/off switch S1 to the on position.
4. Press the Stby/On switch to turn on the AM700 (Green Indicator seen in
switch).
5. Check that the instrument powers up normally and that the fan is exhausting
air.
If the power supply does not come up normally, refer the AM700 to a qualified
service person for corrective maintenance. A troubleshooting and checkout
procedure for the power supply is given in the Maintenance section of this
manual. If the fan is not exhausting air, do not continue to operate the AM700
until it has been repaired.
Power On Diagnostics
1. On power on, press and hold in the Limits button.
2. Release the Limits button after the AM700 beeps twice. The AM700 will
now run a suite of diagnostic tests before it loads an application.
3. Check that the power-on diagnostics pass as the tests run.
Check 115 V Power
Supply Operation
Check 230 V Power
Supply Operation