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Summary of Contents for Alto VERB II
- Page 1 Service Manual Model: αVERB II 40-BIT DIGITAL EFFECTS MODULE www.altoproaudio.com...
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Page 2: Table Of Contents
CONTENTS 1. INTRODUCTION 2. SPECIFICATION 3. BLOCK DIAGRAM 4. SCHEMATIC DIAGRAM 5. PCB LAYOUT 6. TEST PROCEDURE 7. BOM 8. EXPLODED VIEWS & MECHANICAL PARTS LIST... -
Page 3: Introduction
1. INTRODUCTION Robust and Compact Design 40-bit Digital Audio Processor 16 Great Sounding Programs Variation adjust knob (16 positions) 256 presets in total Analog Mix (Dry/Wet) control User adjustable Input and Output Gain Stereo/Mono Jack Inputs LED control for digital overdrive Easy to operate Front Panel controls SMT Design for greater reliability Short Signal Path and no internal cabling to provide superior sound... -
Page 4: Specification
2. SPECIFICATION Electrical Frequency Response +0.5 / -1.5 dB from 20 Hz to 20 kHz S/N Ratio (process) 80 dB "A" wtg, 20 Hz-22 kHz S/N Ratio (bypass) >90 dB "A" wtg, 20 Hz-22 kHz THD+Noise <0.008% @ 1 kHz (0 dBv, bypass) Input Number of Channels Format... -
Page 5: Block Diagram
3. BLOCK DIAGRAM - 3 -... -
Page 6: Schematic Diagram
4. SCHEMATIC DIAGRAM - 4 -... - Page 7 - 5 -...
- Page 8 - 6 -...
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Page 9: Pcb Layout
5. PCB LAYOUT - 7 -... - Page 10 - 8 -...
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Page 11: Test Procedure
6. TEST PROCEDURE The Finished Product Test Procedure of aVERB II 1. Test Instruments: a. Dual oscillagraph b. AP (ATS-2 or System Two) c. AC power supply or AC/DC Adapter: 9V 2. Instruments setting: a. Connect the signal generator or AP output signal to L (Mono) Input (unbal-GND, 20 Ohm Z-Out), and the AP input to L, R (BNC-Unbal). - Page 12 PRESETS L-OUT/R-OUT LEVEL (±2dbm) Note DELAY/REV. -11.0 dbm/-14.0 dbm FLANGE/REV. The changed signal (the waveform strongly changed) CHORUS/REV. The changed signal (the waveform strongly changed) ROTARY The changed signal (the waveform strongly changed) f. Rotate the “VARIATIONS” (the smaller one) from “1” position, the effect will be changed (it presents the waveform will be strongly changed), and the “SIGNAL”...
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Page 13: Bom
0.04t*350*230mm ├0016 NA00146 bubble bag 13*16 ├0017 NI00501 self-adhere foot cushion 12.7*9*3t(SF-004) ├0018 NE05006 label-RS ALPHAVERB_V1.0 ├0019 NE05004 label ALTO ├0020 NE02717 label MADE IN CHINA ├0021 NF00061 assurance card-RS-C ALTO_V1.1 ├0022 AD00012 twin adhesive-RS 90*120mm_V1.0 ├0023 NA00279 clip-chain bag 0.04t*100*150mm_V1.0... - Page 14 Rank Part No. Description Specification Remark C1,C2,C5,C6,C18, SMD ceramic capacitor C19,C20,C21,C22, CI00100 0.1uF/50V X7R ±10% │ │ ├0005 0805 C35,C36,C37,C38, C44,C45,C50,C51 SMD ceramic capacitor CI00112 0.01uF/50V X7R ±10% C14,C26 │ │ ├0006 0805 RD00002 SMD fixed resistor 1/8W 0.0Ω ±5% 0805 │ │ ├0007 RD00006 SMD fixed resistor 1/8W 100Ω ±5% 0805 R1,R2,R47 │ │ ├0008 RD00009 SMD fixed resistor 1/8W 220Ω...
- Page 15 CB00166 electrolytic capacitor 100uF/16V φ6*5mm C24,C16,C21,C25, │ │ └0007 C26,C28,C7 RA01234 fixed resistor 1/4W 4.7KΩ │ └0023 a VERB;a COMP;a NB02141 carton ├0026 MICTUBE ALTO NB05581 inner case-RS αVERB Ⅱ ALTO_V1.0 ├0027 MG00538 screw M3*10*0.5PH_V1.0 ├0028 NF02910 user manual-RS αVERBⅡ ALTO_V1.0 ├0029 NE05847 label-RS-ACT aVERB II_V1.0...
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Page 16: Exploded Views & Mechanical Parts List
8. EXPLODED VIEWS & MECHANICAL PARTS LIST - 14 -... - Page 17 MECHANICAL PARTS LIST No. Part No. Description Specification 1 NI00501 self-adhesive foot cushion-RS 12.7*9*3t (SF-004) 2 NI00363 plastic knob-RS-C φ21*16mm COOL GRAY 8C 072C_ 3 NI00002 plastic nut-RS φ7/16"*G20/15*4.8 4 NI02386 plastic knob-RS-C φ14*13mm (cool gray 8C 072C 5 NC00131 T-washer-RS-ACT 1*φ11.3*φ15.3 red 6 MG0028 copper pillar-RS M3*8*0.5PH 14...
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