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Alto S12 Service Manual

12-channel mixing console
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Table of Contents

Service Manual
Model: S12
(12-CHANNEL MIXING CONSOLE)
www.altoproaudio.com
Version: 1.2

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Summary of Contents for Alto S12

  • Page 1 Service Manual Model: S12 (12-CHANNEL MIXING CONSOLE) www.altoproaudio.com Version: 1.2...

  • Page 2: Table Of Contents

    CONTENTS 1. Specification 2. Block Diagram 3. Schematic Diagram 4. Printed Circuit Board 5. Wiring Diagram 6. Test Procedure 7. Electrical Parts List 8. Exploded Views & Mechanical Parts List 9. Notes...

  • Page 3: Specification

    1. SPECIFICATION (S12) 8. TECHNICAL SPECIFICATIONS Mono input channels Microphone input electronically balanced, discrete input configuration Frequency response 10Hz to 55kHz, +/-3dB Distortion (THD&N) 0.005% at +4dBu, 1kHz Gain range 0dB to 60dB(MIC), SNR (Signal Noise Rated) 115dB Line input...

  • Page 4: Block Diagram

    2.Block Diagram...

  • Page 5: Schematic Diagram

    100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n TR17 VR53 R121 W50K PGND Titel MAIN INPUT STAGE PCB# S12MN1.PCB Size Model No: Revision ALTO S-12 VER021115 Date: 12-May-2003 Sheet 1 of File: S12MN1.SCH Drawn By: KEVIN LIN.
  • Page 6 C226 C228 C230 C232 C234 C236 C238 C240 C242 C374 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n Titel PCB#S12MN1.PCB Size Model No: Revision ALTO S-12 VER021115 Date: 12-May-2003 Sheet File: S12MN1-2.SCH Drawn By: KEVIN LIN.
  • Page 7 C250 C271 C272 100n 100n 100n 100n 47u/25V 47u/25V 47u/25V C214 R374 PGND PGND PGND PGND -VCC 100n R-METER R342 Titel PCB#S12MN1.PCB Size Model No: Revision ALTO S-12 VER021115 Date: 12-May-2003 Sheet 3 of File: CTRL-R.SCH Drawn By: KEVIN LIN.
  • Page 8 120R CTRL-R-R R162 R118 120R JY-6351G-02-250 JY-6351G-02-250 R122 CTRL-R-L U20B 120R U20A BA15218N Titel BA15218N INPUT STAGE ( CH1-CH4 ) PCB# S12PU2.PCB Size Model No: Revision ALTO S-12 VER020906 Date: 19-Sep-2003 Sheet 1 of File: S12PU2.Sch Drawn By: KEVIN LIN.
  • Page 11 4. PRINTED CIRCUIT DIAGRAM PCB : S12MN1 Top Overlay...
  • Page 12 PCB : S12MN1 Top Layer...
  • Page 13 PCB : S12MN1 Bottom Layer...
  • Page 14 PCB : S12PU2 Top Overlay PCB : S12PU2 Top Layer...
  • Page 15 PCB : S12PU2 Bottom Layer PCB : S12-PU1 Top Overlay PCB : S12-PU1 Bottom Layer...
  • Page 16 PCB : S8PWR Top Overlay PCB : S8PWR Bottom Layer...

  • Page 23: Wiring Diagram

    5. Wiring Diagram...

  • Page 24: Electrical Parts List

    7. Electrical Parts List...
  • Page 40 8. Exploded Views...
  • Page 41 Mechanical Parts List Model No. ALTO S-12 Item No Item Description S-12 PT-S12_230V S-12 P-S12 PU1-DIP...

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