Classe Audio CD-DVD-1, Service Manual

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Classé - 14
START - UP
1-check all wires and components
2-Check screws and bolts
3-Connect the jumpers for 120 Volts
4-Turn the bias all the way to 0 volts
5-Connect the unit in bypass mode
6-Connect the unit with variable transformer
7-Connect speaker cables, regular and balanced inputs
8-Apply 10V AC from variable transformer and check the rail and driver voltages
9-If the unit is OK increase the voltage up to 120V
10-Turn off the unit and remove by pass
11-Turn on the unit and check the rails driver and offset
12-Check the sequence of relay clicking
13-Adjust the bias and offset
14-Check the protection circuit both channels
15-Check the signal with 8 and 4 load in
16-Regular, regular mono, balanced stereo and balanced mono
17-Check noise with small speaker and RCA shorted plug
18-Put in burning bench
CD/DVD-1