Table of Contents
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P-115B/P-115WH/P-45B
■ CONTENTS（目次）
SPECIFICATIONS（総合仕様） . . . . . . . . . . . . . . . . . . 3
PANEL LAYOUT（パネルレイアウト） . . . . . . . . . . . 5
CIRCUIT BOARD LAYOUT（ユニットレイアウト） . 7
DISASSEMBLY PROCEDURE（分解手順） . . . . . . . . 9
CIRCUIT BOARDS（シート基板図） . . . . . . . . . . . . 25
TEST PROGRAM（テストプログラム） . . . . . . . 40/50
DM CIRCUIT BOARD CHECK METHOD
（DM シー トチェック方法） . . . . . . . . . . . . . . . . . . . 60/62
SYSTEM BOOTING FLOWCHART
（起動フローチャート） . . . . . . . . . . . . . . . . . . . . 64/66
CL
001909
DIGITAL PIANO
SERVICE MANUAL
DATA BACKUP AND INITIALIZING
（バックアッ プと初期化） . . . . . . . . . . . . . . . . . . . . . . . 68
USER DATA BACKUP
（ユーザーデータのバックアッ プ） . . . . . . . . . . . . . . 70/71
PARTS LIST
BLOCK DIAGRAM（ブロックダイアグラム）
WIRING DIAGRAM（基板結線図）
CIRCUIT DIAGRAM（回路図）
Copyright (c) Yamaha Corporation. All rights reserved. PDF
P-115B
P-115WH
P-45B
HAMAMATSU, JAPAN
'15.02
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Table of Contents
Related Manuals for Yamaha P-45B
Summarization of Contents
General Warnings
Important Notices and Disclaimers
Manual usage, sale, and data accuracy disclaimers.
Data Saving Information
How data is saved and user data backup options.
Disassembly Procedures
P-115B/P-115WH Disassembly
Steps for disassembling the P-115B/P-115WH model.
P-45B Disassembly
Steps for disassembling the P-45B model.
Keyboard Assembly Disassembly
Specific steps to disassemble the keyboard assembly.
Keyboard Assembly Assembly
Specific steps to assemble the keyboard assembly.
Test Program Overview
Measurement Conditions
Specifies environment, power voltage, instruments, and test jigs.
Starting Test Mode
Procedure to enter the test mode and start tests.
Test Procedure and Results
How to execute tests and interpret results based on sounds.
Test Items (Table 1)
Lists and describes specific test items and their judgment criteria.
Inspections of the Others
Noise Level Check
Procedure for measuring and verifying noise levels.
DM Circuit Board Check Method
Symptoms and Check Items
Lists symptoms and corresponding test points for DM circuit board troubleshooting.
Test Points and Criteria
Details test points, circuits, judgment criteria, and parts.
Output Checks
Table indicating normal/failed states for various outputs.
DM Circuit Board Check Method (P-45B)
Symptoms and Check Items (P-45B)
Lists symptoms and test points for P-45B DM circuit board troubleshooting.
Test Points and Criteria (P-45B)
Details test points, circuits, criteria, and parts for P-45B.
Output Checks (P-45B)
Output check table for P-45B DM circuit board.
Data Backup and Initializing (P-115B/P-115WH)
Backup Data Details
Lists data automatically backed up by the instrument.
Saving User Song Data
Procedure to save user song data to a computer.
Initializing Backup Data
Procedure to reset backup data to factory settings.
Data Backup and Initializing (P-45B)
Backup Data Details (P-45B)
Lists data automatically backed up by the P-45B.
Initializing Backup Data (P-45B)
Procedure to reset backup data to factory settings for P-45B.
User Data Backup (P-115B/P-115WH only)
Preparation for Backup
Software and hardware setup for data backup.
Backup Data Content
Specifies that only User Song data can be backed up.
Backup Procedure Steps
Step-by-step instructions for performing the data backup.
Assembly Diagrams and Parts Information
P-115B/P-115WH Assembly and Parts
Overall assembly diagram and electrical parts list for P-115B/P-115WH.
P-45B Assembly and Parts
Overall assembly diagram and electrical parts list for P-45B.
General Warnings
Important warnings regarding special characteristic parts.
Diagrams and Schematics
P-115B/P-115WH Diagrams
Block, wiring, and circuit diagrams for P-115B/P-115WH.
P-45B Diagrams
Block, wiring, and circuit diagrams for P-45B.
Circuit Diagrams (Model Specific)
Detailed schematic diagrams for various circuit boards across models.
Need help?
Do you have a question about the P-45B and is the answer not in the manual?
Questions and answers