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Manuals
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LG Manuals
DVD Recorder
HDR676X
Service manual
LG HDR676X Service Manual
Hdd/dvd recorder
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Section 1 Summary
Table of Contents
New Functions of Hdd/DVD-Recorder
Product Safety Servicing Guidelines for Video Products
Servicing Precautions
General Servicing Precautions
Insulation Checking Prodedure
Electrostatically Sensitive Devices
Service Information for Eeprom IC Setting
Specifications
Section 2 Cabinet & Main Chassis
Cabinet and Main Frame Section
Exploded Views
Deck Mechanism Section(Rs-01A)
Packing Accessory Section
Section 3 Electrical
Electrical Troubleshooting Guide
Hdr Part
Power Supply on Smps Board
Power Supply on I/O Board
Disc Not Recognized
System Circuit Part
When Playing Disc, no Audio Output
Optical / Digital Output
Tuner Audio Output
External Input Audio
Composite / S-Video Signal When Play Disc
Rgb / Component Video Signal When Play Disc
Tv, External Input Video Signal
DV(Ieee 1394) Input (Video/Audio) Signal
Block Diagrams
Overall Block Diagram
Layout Connection Block Diagram_1
Layout Connection Block Diagram_2
Smps Block Diagram
Power : Main Board Block Diagram
Power : I/O Board Block Diagram
In/Out Block Diagram ( Scart Model Only )
Video Block Diagram
Video S/W Path Block Diagram
Audio Block Diagram
Audio S/W Path Block Diagram
FLD / Μ-COM / TUNER BLOCK DIAGRAM
Main Block Diagram ( Scart Model Only )
Timer Block Diagram
Circuit Diagrams
Smps 1 Circuit Diagram
Smps 2 Circuit Diagram
Mpeg Circuit Diagram
Flash/Ddr Circuit Diagram
Reset & 1394 & Jepg Circuit Diagram
Atapi & Memory Card Circuit Diagram
I/O, Μ-COM CIRCUIT DIAGRAM
Tuner/Mpx/Adc/Dac/Jack Circuit Diagram
Decoder Circuit Diagram
Timer Circuit Diagram
Waveforms
Circuit Voltage Chart
Main P.C.board
Printed Circuit Diagrams
I/O P.C.board
Power P.C.board
Timer1 P.C.board
Timer2 P.C.board
Hdmi P.C.board
Section 4 Rs-01A Loader Part
Electrical Troubleshooting Guide
Recording Layer
The Difference of DVD-R/Rw, DVD+R/Rw Discs and DVD-Rom
Disc Materials
Disc Specification
Organization of the Inner Drive Area, Outer Drive Area, Lead-In Zone and Lead-Out Zone
Alpc Measurement System
Alpc Program
How to Use Test Tool
Execute Alpc Program
Optical Power Setting
Confirm Optical Power Setting Parameter
Optical Power Setting Parameter Range
Attachment. Optical Power Measurement
Block Diagram of the Pick-Up(Lpc-812R)
Internal Structure of the Pick-Up
Pick up Pin Assignment
Signal Detection of the P/U
Alpc (Automatic Laser Power Control) Circuit
Description of Circuit
Focus/Tracking/Sled Servo Circuit
Spindle Servo Circuit
Lic121 (An22113A) : Fep(Rf) Analog Signal Processor
Major IC Internal Block Diagram
Ic301 (Bd7956Fs) : CD-Rom/DVD-Rom 7Ch Power Driver
Circuit Diagrams
Dsp Circuit Diagram
Rf Circuit Diagram
Drive Circuit Diagram
Circuit Voltage Chart
Main P.C.board(Top View)
Printed Circuit Diagrams
Main P.C.board(Bottom View)
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Table of Contents
Download this manual
HDD/DVD RECORDER
SERVICE MANUAL
MODELS : HDR676X/RH1757/RH177/
RH1858/RH188/RH188H/
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
Table of
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Chapters
Section 1 Summary
3
Section 2 Cabinet & Main Chassis
9
Section 3 Electrical
13
Section 4 Rs-01A Loader Part
62
Table of Contents
Troubleshooting
HDR PART
14
ELECTRICAL TROUBLESHOOTING GUIDE
63
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This manual is also suitable for:
Rh1757
Rh177
Rh1858
Rh188
Rh188h
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