Yamaha Bass Amplifier - Manual
Yamaha Bass Amplifier – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – IMPORTANT NOTICE; IMPORTANT NOTICE FOR THE UNITED KINGDOM; IMPORTANT: The wires in this main lead are coloured in accor-; WARNING
- Page 4 – CIRCUIT BOARD LAYOUT; BLOCK DIAGRAM; Top View
- Page 5 – DISASSEMBLY PROCEDURE; MAIN1/2 Circuit Board
- Page 6 – MAIN1/2 Circuuit Board
- Page 7 – MAIN1/2 CIRCUIT BOARD; CIRCUIT BOARDS; MAIN2/2 CIRCUIT BOARD
- Page 8 – Preparation
- Page 9 – PARTS LIST; BASS AMPLIFIER; CONTENS
- Page 10 – OVERALL ASSEMBLY; Overall Cabinet Assembly
- Page 12 – Amp Kit
- Page 14 – ELECTRICAL PARTS
- Page 16 – OVERALL CIRCUIT DIAGRAM
SERVICE MANUAL
HAMAMATSU, JAPAN
1.507K-033 K
Printed in Japan 2001.08
011592
GA
20010720-17800
CONTENTS
SPECIFICATIONS .............................................................................. 3
PANEL LAYOUT .................................................................................. 3
CIRCUIT BOARD LAYOUT ................................................................. 4
BLOCK DIAGRAM .............................................................................. 4
DISASSEMBLY PROCEDURE ........................................................... 5
CIRCUIT BOARDS ............................................................................. 7
IC BLOCK DIAGRAM .......................................................................... 8
INSPECTIONS .................................................................................... 8
BASS AMPLIFIER
This document is printed on chlorine free (ECF) paper with soy ink.
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
2 F-20B IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed thatbasic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by theusers, and have ther...
4 F-20B CIRCUIT BOARD LAYOUT MAIN 1/2 MAIN 1/2 MAIN 1/2 MAIN 2/2 MAIN 2/2 AC Cord Power Transformer BLOCK DIAGRAM +B +12V -12V -B GND POWER AMP IC4 IC1 IC3 1 2 3 1 1 4 INPUT FUSE FZ1 ACTIVE TYPE TONE CONTROL POWER SUPPLY CIRCUIT POWER TRANSFORMER 4 Ω Speaker PHONE AUX IN CN2 4P CN1 2P CN3 3P CN4 5P ...
5 F-20B DISASSEMBLY PROCEDURE [30] x 4 [60a] [A] BackBoard Speaker Pre-Main Unit Pre-Main Unit (Fig.1) MAIN1/2 Circuit Board Needle-nose plier Needle-nose plier MAIN1/2 Circuit Board [P40] [P40] (Fig. 2) [30]: Truss Head Screw 4.0X25 MFZN2BL (VN347600) [A]: Bind Head Tapping Screw 4.0X25 FCRM3-BL (E...
