Boss GT 10 Effects Processor Service Manual

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2 Mar. 2008 GT-10 Cautionary Notes Before beginning the procedure, please read through this document. The matters described may differ according to the model. Back Up User Data! User data may be lost during the course of the procedure. Refer to Saving and Loading Data (p. 15) in the Service Notes and save the data. After completing the procedure, restore the backed-up data to the product. Important Notes on Disassembly When disassembling, first check and verify the disassembly procedures, then carry out actual disassembly operations. Be especially careful to ensure that the following parts are not lost. - Jack Bushing (#G2257327R0) - Insulating Washer 14.5X9.2 (#G2637118R0) - USB Connector Cap (USBC-1) (#05015034) 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). Circuit Diagram In the circuit diagram, NIU is an abbreviation for Not in Use, and UnPop is an abbreviation for Unpopulated. They both mean non-mounted components. The circuit board and circuit board diagram show silk-screened indications, but no components are mounted.

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3 Mar. 2008 GT-10 Main Specifications GT-10: Guitar Effects Processor AD Conversion 24-bit + AF method (*) DA Conversion 24-bit Sampling Frequency 44.1 kHz Program Memories 400: 200 (user) + 200 (preset) Nominal Input Level INPUT: -10 dBu RETURN: -10 dBu Input Impedance INPUT: 1 M ohm RETURN: 220 k ohms Nominal Output Level OUTPUT: -10 dBu/+4 dBu SEND: -10 dBu Output Impedance OUTPUT: 2 k ohms SEND: 3 k ohms Dynamic Range 100 dB or greater (IHF-A) Digital Output Coaxial type (conforms to IEC60958) Display 132 x 64 dots graphic LCD (backlit LCD) 7 segments, 3 characters LED Connectors INPUT jack (1/4 inch phone type) OUTPUT jacks L/MONO, R (1/4 inch phone type) PHONES jack (Stereo 1/4 inch phone type) EXT LOOP jacks SEND, RETURN (1/4 inch phone type) AMP CONTROL jack (1/4 inch phone type) EXP PEDAL 2/CTL3,4 jack (1/4 inch TRS phone type) USB connector DIGITAL OUT jack (coaxial type) MIDI connectors IN, OUT DC IN jack Power Supply DC 9 V (AC Adaptor: Roland PSB-1U) Current Draw 800 mA Dimensions 542 (W) x 272 (D) x 77 (H) mm 21-3/8 (W) x 10-3/4 (D) x 3-1/16 (H) inches Maximum height: 542 (W) x 272 (D) x 104 (H) mm 21-3/8 (W) x 10-3/4 (D) x 4-1/8 (H) inches Weight 4.9 kg / 10 lbs 13 oz (excluding AC Adaptor) Accessories AC Adaptor (Roland PSB-1U)(#04236101) Power Code for 120V (#02562456) for 230V (#01903356) for 240VA (#03785590) Euro Converter Plug (#00905234) Owners Manual English (#G6027126R0) Roland Service (Information Sheet)(#********) Options Foot switch: BOSS FS-5U Dual Foot switch: BOSS FS-6 Expression Pedal: BOSS FV-500L/500H, Roland EV-5 Foot switch Cable: Roland PCS-31(1/4 inch Phone plug (stereo) - 1/4 inch Phone plug (mono) x2) * 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. *AF method (Adaptive Focus method) This is a proprietary method from Roland & BOSS that vastly improves the signal-to-noise (S/N) ratio of the A/D and D/A converters.