340A SERVICE MANUAL
TABLE OF CONTENTS
Safety Precautions & Important Notes
3
Main
Assembly
BOM 4/5
Micro controller PCB Schematic (PIC’s/Switches/LED’s)
6
Micro controller PCB Layout (Top Side)
7
Micro controller PCB Layout (Bottom Side)
8
Front Panel PCB Assembly BOM
9
Main PCB Schematic (Input Select)
10
Main PCB Schematic (Power Amplifiers)
11
Main PCB Schematic (Power Supplies)
12
Main PCB Schematic (Tone Control)
13
Main PCB Layout (Top Side)
14
Main PCB Layout (Bottom Side)
15
Main
PCB
BOM
16-18
IC
Pin
Layout
Details 19/20
Silver – Black Differences BOM
21
2
