User manual ROLAND AC-2

[. . . ] AC Adaptor Jack Accepts connection of an AC Adaptor (optionally available BOSS PSA-series). By using an AC Adaptor, you can play without being concerned about how much battery power you have left. * If there are batteries in the unit while an AC adaptor is being used, normal operation will continue should the line voltage be interrupted (power blackout or power cord disconnection). * Use only the specified AC adaptor (PSAseries). 3 4 7 5 6 4 2. [. . . ] Power to the unit is turned on when you plug into the INPUT jack; the power is turned off when the cable is unplugged. When not using the effects unit, be sure to disconnect the plug from the INPUT jack. 8. REVERB Knob This adjusts the amount of reverb applied to the sound. 9. LEVEL Knob This adjusts the volume of the effect sound. 6 Panel Descriptions 10. BODY Knob This adjusts the resonance of the sound produced by the guitar body, altering the characteristic mellowness and breadth of the acoustic guitar sound. 11. TOP Knob This adjusts the sense of attack and the harmonic content of the upper range. 12. MODE Knob Provides for selection of the tone. The knob can be used to select any of four tones. STANDARD JUMBO ENHANCE PIEZO This tone is that of the popular Dreadnought acoustic guitar body style. This setting provides a tone characteristic of an oversized guitar body, a tone featuring a rich bass response along with a beautiful high end. Providing a sharper attack than the standard tone, this tone does not become masked by the sounds of other instruments, even in bands and ensembles. This setting provides the tone of a round-back acoustic guitar, with subdued body resonance and a unique attack. 7 Connections * Raise the amp volume only after turning on the power to all connected devices. * Distortion can also be suppressed by turning the LEVEL knob to the left. 14 Operating the Unit fig. 06 fig. 07 fig. 08 5. Adjust the breadth of the sound with the BODY knob. 6. Using the LEVEL knob, adjust the balance of the volume for when the effects are on and when off. 7. Adjust the amount of reverb with the REVERB knob. 15 Changing the Battery When the indicator goes dim or no longer lights while an effect is on, it means that the battery is nearly dead and must be replaced. Replace the battery following the steps below. * The use of an AC adaptor is recommended as the unit's power consumption is relatively high. Should you prefer to use batteries, please use the alkaline type. fig. 12 1. Loosen the thumbscrew at the front of the pedal, then lift the pedal upwards to open the unit. * The thumbscrew can be left in the pedal while changing the battery. Thumbscrew Pedal Spring Base Battery Snap Cord Coil Spring Guide Bush Hole 2. Remove the old battery from the battery housing, and remove the snap cord connected to it. Connect the snap cord to the new battery, and place the battery inside the battery housing. * Be sure to carefully observe the battery's polarity (+ versus ­). Slip the coil spring onto the spring base on the back of the pedal, then close the pedal. * Carefully avoid getting the snap cord caught in the pedal, coil spring and battery housing. Battery Snap Battery Housing 9V Battery 5. [. . . ] Pedal switch, LEVEL knob, REVERB knob, BODY knob, TOP knob, MODE knob Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CHECK indicator (Serves also as battery check indicator) Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INPUT jack, LINE OUT jack, G. AMP OUT jack, AC adaptor jack (DC 9 V) Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC 9 V: Dry battery/9 V type (6F22 (carbon), 6LR61 (alkaline)), AC Adaptor (PSA-series: optional) 21 Specifications Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]