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CMS4540F/W
LG CMS4540F/W Service Manual
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POWER ON
FLD no disc status or AUX status.
Remote control ‘Fwd skip’ + Front ‘STOP’
push same timing during 5 seconds.
FLD ‘OP-0….
Move to appropriate position and
make changes with remote control
‘skip, mode, play’ key.
Press ENTER key
FLD ‘write ok’
Remote control ‘Fwd skip’ +
Front ‘STOP’ push same timing
FLD ‘E2P CLR’
Completed
NAME
OPT0
OPT1
OPT2
OPT3
OPT4
OPT5
OPT6
OPT7
OPT8
OPT9
DETECT
NEW
EEPROM
(OPTION
EDIT
SCREEN)
HEX
05
00
00
02
00
01
81
06
20
00
1-7
SERVICE INFORMATION FOR EEPROM
7
9
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
Mcs Program
9
Eq Program
10
Specifications
11
Section 2 Cabinet & Main Chassis
12
Cabinet and Main Frame Section (Cm4540)
14
Exploded Views
14
Mechanism Deck Section (Dp17Tm3)
15
Packing Accessory Section
16
Speaker Section
17
Section 3 Electrical
20
One Point Repair Guide
21
Power
21
Booting When Power on the Set
23
Vfd Is Not Displayed When Power on the Set
24
Operation of MD
26
Sound
31
Audio Electrical Troubleshooting Guide
36
Power (Smps)
36
Ic504(M24C16) Check
39
Mcs Part Check
39
Fld Display Check
40
Pwm Modulation Check
41
Power Amp Part Check
43
Tuner / aux Function Check
44
Tuner Function Check
45
CD Function
46
Cdp Electrical Troubleshooting Guide
46
Double Usb Function
47
Sdram
48
Servo
48
Waveforms of Major Check Point
48
Audio Path
49
Usb
50
Wiring Diagram
52
Block Diagrams
53
System Block Diagram
53
Smps Block Diagram
54
Audio Path Block Diagram
55
Power Diagram
56
Circuit Diagrams
57
Smps Circuit Diagram
57
Main - Dsp Circuit Diagram
58
Main - Servo Circuit Diagram
59
Main - Adc/ Pwm Circuit Diagram
60
Main - Amp Circuit Diagram
61
Front Circuit Diagram
62
Circuit Voltage Chart
63
Ics
63
Capacitors
64
Printed Circuit Board Diagrams
65
Smps P.C.board
65
Main P.C.board
66
Front P.C.board
67
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Owner's Manual
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LG CMS4540F/W Specifications
General
Brand
LG
Model
CMS4540F/W
Category
Stereo System
Language
English
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