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Extracted text from cambridgeaudio 840A int sm (Ocr-read)
Page 1
840A SERVICE MANUAL
TABLE OF CONTENTS
Safety Precautions & Important Notes 4
Block Diagram
5
Exploded Diagram
6
Exploded Diagram Parts List
7
Front Panel PCB Schematic (Microcontroller & LCD)
8
Front Panel PCB Schematic (Shift Registers)
9
Front Panel PCB Layout (Top Side)
10
Front Panel PCB Layout (Bottom Side)
11
Front Panel PCB BOM
12
Input PCB Schematic (Input Select)
13
Input PCB Schematic (Input Control)
14
Input PCB Schematic (Input Amplifier)
15
Input PCB Board Layout (Top Side)
16
Input PCB Board Layout (Bottom Side)
17
Input PCB BOM
18
Preamp PCB Schematic (Relay Logic)
19
Preamp PCB Schematic (Tone Control)
20
Preamp PCB Schematic (Post Amp)
21
Preamp PCB Board Layout (Top Side)
22
Preamp PCB Board Layout (Bottom Side)
23
Preamp PCB BOM
24-25
Power Amplifier Schematic (Right Power Supplies & PSU)
26
Power Amplifier Schematic (Right Channel)
27
Power Amp Right & PSU PCB Board Layout (Top Side)
28
Power Amp Right & PSU PCB Board Layout (Bottom Side)
29
Power Amp Right PCB BOM
30-31
Power Amp PSU PCB BOM
32
Power Amp Schematic (Left Channel)
33
Power Amp Schematic (Left Power Supplies)
34
Power Amp PCB Board Layout (Top Side)
35
Power Amp PCB Board Layout (Bottom Side)
36
Power Amp Left PCB BOM
37-38
Hub PCB Schematic
39
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