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CM9550
LG CM9550 Service Manual
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801 Owner’s Manual
804 Bag
802 Box
808 Battery
900 Remote Control
825 FM Wire Antenna
803 Packing
803 Packing
836A Rubber Foot (Rear)
836L Rubber Foot (Left)
836R Rubber Foot (Right)
826 Filter, Ferrite Core
3. PACKING ACCESSORY SECTION
17
19
Table of Contents
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
Exploded Views
16
Cabinet and Main Frame Section (Cm9550)
16
Mechanism Deck Section (Dp17Tm2)
17
Packing Accessory Section
18
Speaker Section
19
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
Circuit Voltage Chart
78
Connectors
78
Capacitors
78
Printed Circuit Board Diagrams
79
Smps P.C.board (Top View)
79
Smps P.C.board (Bottom View)
80
Main P.C.board (Top View)
81
Main P.C.board (Bottom View)
82
Front Volume & MIC & Portable P.C.board (Top View)
83
Front Volume & MIC & Portable P.C.board (Bottom View)
84
Front Speaker Main/Sub & Woofer Speaker Main/Sub P.C.board (Top View)
85
Front Speaker Main/Sub & Woofer Speaker Main/Sub P.C.board (Bottom View)
85
Other manuals for LG CM9550
Simple Manual
4 pages
Owner's Manual
43 pages
4
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LG CM9550 Specifications
General
Bluetooth
Yes
USB Playback
Yes
FM Tuner
Yes
Playable File Types
MP3, WMA
NFC
Yes
CD Player
Yes
Speakers
2
Remote Control
Yes
Audio Input
3.5mm AUX
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