Yamaha SVC210 - User Manual

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SERVICE MANUAL

20061101-260400

NV 011842

HAMAMATSU, JAPAN

このサービスマニュアルはエコパルプ

（ECF：無塩素系漂白パルプ）を使用しています。

This document is printed on chlorine free (ECF) paper.

SPECIFICATIONS （総合仕様）..................................................................... 3

PANEL LAYOUT （パネルレイアウト）......................................................... 4

CIRCUIT BOARD LAYOUT （ユニットレイアウト）.................................... 7

DISASSEMBLY PROCEDURES （分解手順）............................................... 8

LSI PIN DESCRIPTION （LSI端子機能表）.................................................. 11

IC BLOCK DIAGRAM （ICブロック図）...................................................... 11

CIRCUIT BOARDS （シート基板図）........................................................... 12

INSPECTIONS & MECHANICAL CHECK POINT

（検査＆雑音が出る場合のチェックポイント）...................................... 14/16

TUNING （調弦）......................................................................................... 18

BLOCK DIAGRAM （ブロックダイアグラム）............................................ 19

OVERALL CIRCUIT DIAGRAM （総回路図）.............................................. 20

PARTS LIST

■ CONTENTS （目次）

SVC210

Main Page

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Summary

Product Specifications

Panel Layouts

Front View Components

Details the front components of the cello.

Rear View Layout

Identifies components on the rear of the cello.

Control Panel Layout

Describes the controls and connections on the unit's panel.

Circuit Board Layouts

Rear Circuit Board Layout

Shows component placement on the rear circuit board.

MA Circuit Board Diagram

Detailed diagram of the MA circuit board layout.

HP and JK Circuit Board Diagrams

Detailed diagrams for HP and JK circuit boards.

Disassembly Procedures

Preparation and Initial Steps

Pre-disassembly tasks and removal of initial components.

Control Panel and MA Board Removal

Steps to remove the control panel and MA circuit board.

JK and HP Board Removal

Procedures for removing JK and HP circuit boards.

Pickup Assembly and Body;Neck Separation

Steps for removing pickup assembly and separating body/neck.

Technical Diagrams and Descriptions

LSI Pin Descriptions

Detailed pin functions for Large Scale Integration (LSI) chips.

IC Block Diagrams

Schematic block diagrams of key integrated circuits.

Overall Circuit Diagram

Complete schematic of the cello's electronic circuit.

Inspections and Troubleshooting

Unit Setting and Measurement Tools

Initial unit settings and required instruments for inspections.

Electrical and Reverb Inspections

Procedures for electrical output and reverb time inspections.

Mechanical Noise Troubleshooting

Checks and adjustments for mechanical noises and operational issues.

Tuning Procedures

Parts List