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CMS9540F
LG CMS9540F Service Manual
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EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION (CM9540)
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NOTES)
THE EXCLAMATION POINT WITHIN AN
EQUILATERAL TRIANGLE IS INTENDED
TO ALERT THE SERVICE PERSONNEL
TO THE PRESENCE OF IMPORTANT
SAFETY INFORMATION IN SERVICE
LITERATURE.
15
17
Table of Contents
Section 1 Summary
3
Table of Contents
3
Servicing Precautions
4
Esd Precautions
6
Hidden Key Mode
7
Service Information for Eeprom
8
Program Download & Update Guide
9
Specifications
13
Section 2 Cabinet & Main Chassis
14
Cabinet and Main Frame Section (Cm9540)
16
Exploded Views
16
Mechanism Deck Section (Dp17Tm2)
17
Packing Accessory Section
18
Speaker Section
19
Section 3 Electrical
22
One Point Repair Guide
23
Power
23
Booting When Power on the Set
25
Vfd Is Not Displayed When Power on the Set
26
Booting in CD/Usb Function
28
Operation of MD (Driving the Servo Motors)
33
Sound
38
Audio Output Is Small or no Audio Output
43
Power on (Standby Led Is Blinking)
44
Speaker no Audio
45
Electrical Troubleshooting Guide
46
Power Supply on Smps Board
46
System Part
50
Audio Part
51
Lighting (Woofer Speaker)
56
Waveforms of Major Check Point
57
Wiring Diagram
62
Block Diagrams
63
Smps Block Diagram
63
Main System Block Diagram
64
Main Power Block Diagram
65
Circuit Diagrams
66
Smps - Power #1 Circuit Diagram
66
Smps - Power #2 Circuit Diagram
67
Main - CD Dsp Circuit Diagram
68
Main - Rf / Servo Circuit Diagram
69
Main - Adc / Pwm Circuit Diagram
70
Main - Amp Circuit Diagram
71
Front Volume Circuit Diagram
72
MIC & Portable Circuit Diagram
73
Front Speaker Main Circuit Diagram
74
Front Speaker Sub Circuit Diagram
75
Woofer Speaker Main Circuit Diagram
76
Woofer Speaker Sub Circuit Diagram
77
Capacitors
78
Circuit Voltage Chart
78
Connectors
78
Printed Circuit Board Diagrams
79
Smps P.C.board
79
Main P.C.board
81
Front Volume P.C.board
83
Front Speaker Main P.C.board
84
Front Speaker Sub P.C.board
84
MIC & Portable P.C.board
84
Woofer Speaker Main P.C.board
85
Woofer Speaker Sub P.C.board
85
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LG CMS9540F Specifications
General
Brand
LG
Model
CMS9540F
Category
Stereo System
Language
English
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