540A V2.0 SERVICE MANUAL
TABLE OF CONTENTS
Safety Precautions & Important Notes
3
Exploded
Diagram 4
Input PCB Schematic (Power Supply)
5
Input PCB Schematic (Buffers and Switches)
6
Input PCB Schematic (Tone Control)
7
Input PCB Schematic (Protection Circuitry)
8
Input PCB Schematic (Headphone Driver)
9
Input PCB Layout (Top Side)
10
Input PCB Layout (Bottom Side)
11
Input PCB Assembly BOM
12-13
Voltage Select Switch PCB Schematic
14
Voltage Select PCB Layout (Top Side)
15
Voltage Select PCB Layout (Bottom Side)
16
Voltage
Select
PCB
Assembly
BOM
17
Mains PCB Schematic
18
Front Panel PCB Schematic
19
Mains & Front Panel PCB Layout (Top Side)
20
Mains & Front Panel PCB Layout (Bottom Side)
21
Mains & Front Panel PCB Assembly BOM
22
Amp
PCB
Schematic
(Right
Channel) 23
Amp PCB Schematic (Protection)
24
Amp PCB Schematic (Power Amp)
25
Amp PCB Schematic (Left
Channel)
26
Amp PCB Layout (Top Side)
27
Amp PCB Layout (Bottom Side)
28
Amp PCB Assembly BOM
29-31
Abus Module PCB Schematic
32
Abus Module PCB Layout (Top Side)
33
Abus Module PCB Layout (Bottom Side)
34
Abus
PCB
Assembly
BOM
35
IC
Pin
Layout
Details
36-42
2
Summary of Contents for Azur 540A V2.0
Page 37: ...7915 U2 7805 U3 7815 U4 LM393 U8 TC9163AF U11 37...
Page 40: ...Front Panel Mains PCB MPSA14 Q4 BC337 Q1 Q2 PIC16F72 I SP BA6218 U1 M74HC4094 U3 40...
Page 41: ...TSOP1836 U4 A BUS PCB BC337 Q1 Q2 Q3 Q5 BC327 Q4 4011 U1 TSOP1836 U2 41...
Page 42: ...TSOP1837 U3 OP4N25 U4 NJM5532 U5 U6 7812 U7 42...
