Boss AC 3 Acoustic Simulator Service Manual
This is the 15 pages manual for Boss AC 3 Acoustic Simulator Service Manual.
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Extracted text from Boss AC 3 Acoustic Simulator Service Manual (Ocr-read)
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2 Mar. 2006 AC-3 Cautionary Notes Before beginning the procedure, please read through this document. No User Data This product cannot save user data. Backing up user data during servicing is not required. Parts List A component whose part code is ******** cannot be supplied as a service part because one of the following reasons applies. - Because it is supplied as an assembled part (under a different part code). - Because a number of circuit boards are grouped together and supplied as a single circuit board (under a different part code). - Because supply is prohibited due to copyright restrictions.- Because reissuance is restricted. - Because the part is made to order (at current market price). Part Replacement When replacing components near the power-supply circuit or a heat- generating circuit (such as a circuit provided with a heat sink or including a cement resistor), carry out the procedure according to the instructions with respect to the part number, direction, and attachment position (mounting so as to leave an air gap between the component and the circuit board, etc.). Circuit Diagram In the circuit diagram, NIU is an abbreviation for NOT IN USE. The circuit board and circuit-board diagram show silkscreened indications, but no components are mounted. Specifications AC-3: Acoustic Simulator Nominal Input Level 20 dBu Input Impedance 1 MΩ Nominal Output Level 20 dBu Output Impedance 1 kΩ Recommended Load Impedance 10 kΩ or greater Controls 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) Current Draw 39 mA (DC 9 V) * Expected battery life under continuous use: Carbon: 3 hours, Alkaline: 10 hours These figures will vary depending on the actual conditions of use. Dimensions 73 (W) x 129 (D) x 59 (H) mm 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches Weight 440 g /1 lb (including battery) Accessories Owners Manual English (#G6027114R0) Leaflet (USING THE UNIT SAFELY, IMPORTANT NOTES, and Information) (#********) Dry battery/9 V type (6LR61) (#********) * The battery that was supplied with the unit is for temporary use intended primarily for testing its operation. We also suggest replacing this with an alkaline dry cell. Option AC Adaptor (PSA-series) * 0 dBu = 0.775 Vrms * In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.
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3 Mar. 2006 AC-3 Location of Controls fig.panel.eps Location of Controls Parts List LEVELREVERB INPUT LINE OUT G.AMP OUT 10 9 8 7 6 5 4 3 2 1 14 13 12 11 No. Part Code Part Name Description Qty 1 22480220R0 P R-KNOB BF BLK/LCG (INTERNAL) 1 22480221R0 P R-KNOB S BLK/LCG (EXTERNAL) 1 F3279854R0 POTENTIOMETER RD912D-20-20FWH-B54-6009 1 H5039521R0 NUT M7 4 2 F3449707R0 LINE OUT JACK HTJ-064-12DS 1 H5039510R0 NUT M9X12X2T NI 4 H5039112R0 WASHER 9X14X0.5 NI 4 3 13449140R0 JACK (STEREO) HTJ-064-14D 1 H5039510R0 NUT M9X12X2T NI 4 H5039112R0 WASHER 9X14X0.5 NI 4 4 75D932T0R0 PEDAL 1 5 22357304R0 PEDAL PLATE 1 6 H5029820R0 THUMB SCREW 3X10 FEBC 1 7 13449104R0 INPUT JACK HTJ-064-13D 1 H5039510R0 NUT M9X12X2T NI 4 H5039112R0 WASHER 9X14X0.5 NI 4 8 F3279853R0 POTENTIOMETER RD901-20-15FP-B54K-04 1 22480260R0 P R-KNOB MF BLK/LCG 3 H5039521R0 NUT M7 4 9 F3279852R0 POTENTIOMETER RD901-20-15FW-B54-006 2 22480260R0 P R-KNOB MF BLK/LCG 3 H5039521R0 NUT M7 4 10 G2217758R0 PANEL 1 11 75D933C0R0 CASE 1 12 15029281R0 LED L-34HDSL 1 13 13449717R0 ADAPTOR JACK HEC2392-01-150 1 14 22537538R0 PSA LABEL 8X13 1