BBE Sonic Maximizer 262 User Manual page 18

TEST PROCEDURE FOR THE BBE 262
INITIAL UNIT SET UP:
Power switch off, BBE switch out, all controls at minimum.
D.C. VOLTAGE TEST:
1. With top cover off, connect the 12 volt A. C. power cord to the unit.
2. Turn on the power switch of the unit and verify that the front panel L.E.D. is on and 'Red' in color.
3. Measure the D.C. voltage on the positive terminal of capacitor 'C15'. The voltage should be between +18VDC and+20VDC.
4. Measure the D.C. voltage on the negative terminal of capacitor 'C18'. The voltage should be between -18VDC and -20VDC.
CHANNEL TEST (SAME FOR BOTH CHANNELS):
1. Adjust signal generator for an output of 4 volts peak to peak at 5kHz.
2. Connect signal generator to channel A [B] input and observe output with an oscilloscope. Verify that the channel A [B]output is 4
volts peak to peak.
3. Turn BBE switch on. Front panel LED should turn 'Green'. Verify that the channel A[B] output remains at 4 volts peak to peak.
4. Adjust channel A[B] process control to maximum and verify that the channel A[B] output increases to 12 volts peak to peak.
5. Change frequency of signal generator to 500Hz.
6. Verify that the channel A [B] output is 4 volts peak to peak.
7. Change frequency of signal generator to 50Hz.
8. Adjust channel A[B] lo-contour control to maximum and verify that the channel A[B] output increases 12 volts peak to peak.
***** REPEAT TEST FOR NEXT CHANNEL *****
REMOTE FOOTSWITCH TEST:
1. Connect footswitch to remote input jack.
2. Verify that pressing the footswitch changes the front panel LED back and forth from 'Red' to 'Green'.
16 - BBE 262 INSTALLATION INSTRUCTIONS