Yamaha F-20 Service Manual

SERVICE MANUAL
HAMAMATSU, JAPAN
1.338K-713 K Printed in Japan 2001.09
011551
GA
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
PARTS LIST
OVERALL CIRCUIT DIAGRAM
GUITAR AMPLIFIER
This document is printed on chlorine free (ECF) paper with soy ink.

Yamaha F-20 Specifications

General

Power Output	20W
Type	Guitar Amplifier
Technology	Solid State
Speaker Size	8 inches
Controls	Gain, Middle, Bass
Inputs	1 x 1/4" (Guitar Input)
Outputs	1 x Headphones (1/4" jack)