Alpine MRV-F900 Owners Manual - Page 18

Switch Settings 7 89 CH-1 NOM(1.0V) CH-2 NOM(1.0V) NORMAL BRIDGED MIN MAX GAIN MIN MAX GAIN MODE 10 11 12 NORMAL BRIDGED CH-3 NOM(1.0V) CH-4 NOM(1.0V) MODE MIN MAX GAIN MIN MAX GAIN # # # Take off the two hexagon screws when switch setting and open the door. When you finish 13 the switch setting, close the door and fix with the original hexagon screws. 7 , 8 , 11 , 12 Input Gain Adjustment Control Set the MRV-F900 input gain to the minimum position. Using a dynamic CD as a NOM(1.0V) source, increase the head unit volume until the output distorts. Then, reduce the vol- ume 1 step (or until the output is no longer distorted). Now, increase the amplifier gain MIN MAX GAIN until the sound from the speakers becomes distorted. Reduce the gain slightly so the sound is no longer distorted to achieve the optimum gain setting. 9 , 10 Mode Selector Switch NORMAL BRIDGED 1) Set this switch to the "NORMAL" position for normal 4-channel connections. MODE NORMAL BRIDGED 2) For bridged connections, set the switch to the "BRIDGED" position. MODE 13 Status indicator Amplifier status can be confirmed with the indicator. • Protection indicator (PROTECTION) Blue Red Condition Light Amplifier circuit is normal. Solution Light Amplifier circuit is abnormal. Contact your authorized Alpine dealer. 14-EN