LG MDS902W Service Manual

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KARAOKE MINI

HOME THEATER

SERVICE MANUAL

MODEL : MDV902(MDS902V, MDS902S, MDS902W)

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”

IN THIS MANUAL.

MODEL : MDV902(MDS902V, MDS902S, MDS902W)

SERVICE MANUAL

P/NO : AFN35036903 JULY, 2007

http://biz.lgservice.com

Table of Contents

Table of Contents2
Servicing Precautions3
- Notes Regarding Handling of the Pick-Up3
  - Notes Regarding Compact Disc Player Repairs4
Esd Precautions5
Location of Users Controls6
Remote Control7
Specifications8
Exploded Views10
Cabinet and Main Frame Section10
Tape Deck Mechanism Exploded View11
- Tape Deck Mechanism (A/R & A/S : Left A/R Deck)11
- Tape Deck Mechanism (A/R & A/S : Right A/S Deck)12
DVD Mechanism Exploded View13
Speaker Exploded View14
- Model : Mds902V (Front Speakers)14
- Model : Mds902S (Rear Speakers)15
- Model : Mds902W (Subwoofer)16
Packing Accessory Section18
Electrical Troubleshooting Guide19
- Power (Smps)19
- P-Sens20
- Vkk Check20
- Micom (Ic302) Change21
- P-Ctrl Check21
- Muting Troubleshooting (Mute State)22
- Expend IC (Ic501 / 502) State22
- Function Mode Has no Sound (Njw1190) Ic60123
- Ic601 (Njw1190) Troublushooting27
- Amp Module Troubleshooting28
- Rec Check29
- Dubbing Check ("Normal or Rec" // "High")30
INTERNAL BLOCK DIAGRAM of Ics31
- Ha12237F31
- Njw119032
- Af330W20Ft32
- Af350W01Ft34
Block Diagram34
Wiring Diagram36
Schematic Diagrams38
- Smps (Power) Schematic Diagram38
- Sub Smps (Power) Schematic Diagram39
- Audio Main Schematic Diagram40
- Deck Schematic Diagram41
- Usb, Aux2 & Headphone Amp Schematic Diagram42
- I/O Jack Schematic Diagram43
- Amp Schematic Diagram44
- Woofer Amp Schematic Diagram45
- Front Schematic Diagram46
Printed Circuit Diagrams47
- Main P.C.board47
- Smps (Power) P.C.board49
- Sub Smps (Power) P.C.board49
- Front P.C.board51
- Amp P.C.board52
- Woofer Amp P.C.board53
DVD Part Electrical54
Electrical Troubleshooting Guide54
- Power54
- Test & Debug55
- Usb60
Waveforms61
- When Power On, Reset & Data Etc Waveform61
- Open / Close Waveform at Power on62
- Starting Action Waveform in MD Device62
- Focus Waveform (at CD)63
- Focus Waveform (at DVD)63
- At Power On, Spindle Signal at MD Deck64
- At First Action, Focus Signal A, B, C, D64
- Tracking Signal65
- Rf Waveform65
- Disk Type Jugement Waveform66
Schematic Diagrams68
- Mpeg Schematic Diagram68
- Servo Schematic Diagram69
- Usb Schematic Diagram70
- Interface Schematic Diagram71
Printed Circuit Diagram72
- DVD P.C.board72

Other manuals for LG MDS902W

Owner's Manual31 pages

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LG MDS902W Specifications

General

Model	MDS902W
Category	Home Theater System
Manufacturer	LG
Brand	LG
Channels	5.1
Total Power Output	1000W
Bluetooth	Yes
USB Port	Yes
HDMI Input	Yes
Optical Input	Yes
Subwoofer	Wireless

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