LG DR175 Manuals

Manuals and User Guides for LG DR175. We have 1 LG DR175 manual available for free PDF download: Service Manual

LG DR175 Service Manual

LG DR175 Service Manual (108 pages)

Brand: LG | Category: DVD Recorder | Size: 9.01 MB
Table of contents
Dvd Recorder1................................................................................................................................................................
Table Of Contents3................................................................................................................................................................
Product Safety Servicing Guidelines For Video Products4................................................................................................................................................................
Servicing Precautions5................................................................................................................................................................
General Servicing Precautions5................................................................................................................................................................
Insulation Checking Prodedure5................................................................................................................................................................
Electrostatically Sensitive Devices5................................................................................................................................................................
Service Information For Eeprom Ic Setting6................................................................................................................................................................
Flash Upgrade7................................................................................................................................................................
Loader Upgrade9................................................................................................................................................................
Specifications11................................................................................................................................................................
Exploded Views13................................................................................................................................................................
Cabinet And Main Frame Section13................................................................................................................................................................
Deck Mechanism Section(rs-01a)14................................................................................................................................................................
Packing Accessory Section15................................................................................................................................................................
Vdr Part17................................................................................................................................................................
Electrical Troubleshooting Guide17................................................................................................................................................................
Power Supply On Smps Board17................................................................................................................................................................
Power Supply On I/o Board19................................................................................................................................................................
System Circuit Part26................................................................................................................................................................
Disc Not Recognized26................................................................................................................................................................
When Playing Disc, No Audio Output27................................................................................................................................................................
No Optical / Digital Output28................................................................................................................................................................
No Tuner Audio Output29................................................................................................................................................................
No External Audio Input30................................................................................................................................................................
No Rgb / Component Video Signal When Play Disc31................................................................................................................................................................
No Composite / S-video Signal When Play Disc32................................................................................................................................................................
No Tv, External Input Video Signal33................................................................................................................................................................
No Dv(ieee 1394) Input (video/audio) Signal34................................................................................................................................................................
Block Diagrams35................................................................................................................................................................
Smps Block Diagram35................................................................................................................................................................
Main Power Block Diagram36................................................................................................................................................................
Video In Block Diagram37................................................................................................................................................................
Video Out Block Diagram38................................................................................................................................................................
Audio In Block Diagram39................................................................................................................................................................
Audio Out Block Diagram40................................................................................................................................................................
System Main Block Diagram41................................................................................................................................................................
I/o µ-com Block Diagram42................................................................................................................................................................
Scart Block Diagram(scart Model Only)43................................................................................................................................................................
Circuit Diagrams44................................................................................................................................................................
Main Power Circuit Diagram45................................................................................................................................................................
Mpeg Circuit Diagram46................................................................................................................................................................
A.latch/flash/ddr Circuit Diagram47................................................................................................................................................................
Loader/dv Circuit Diagram48................................................................................................................................................................
I/o µ-com Circuit Diagram49................................................................................................................................................................
Tuner/mpx/adc/dac/jack Circuit Diagram50................................................................................................................................................................
Decoder Circuit Diagram51................................................................................................................................................................
Timer Circuit Diagram ( 6, 7 Tool Only )52................................................................................................................................................................
Key Circuit Diagram ( 6, 7 Tool Only )53................................................................................................................................................................
Waveforms54................................................................................................................................................................
Circuit Voltage Chart55................................................................................................................................................................
Printed Circuit Diagrams57................................................................................................................................................................
Main P.c.board(top Side)57................................................................................................................................................................
Main P.c.board(bottom Side)58................................................................................................................................................................
I/o P.c.board59................................................................................................................................................................
Juction P.c.board59................................................................................................................................................................
Key P.c.board60................................................................................................................................................................
Timer P.c.board60................................................................................................................................................................
Power P.c.board60................................................................................................................................................................
The Difference Of Dvd-r/rw, Dvd+r/rw Discs And Dvd-rom76................................................................................................................................................................
Recording Layer76................................................................................................................................................................
Disc Specification77................................................................................................................................................................
Disc Materials77................................................................................................................................................................
Organization Of The Inner Drive Area, Outer Drive Area, Lead-in Zone And Lead-out Zone81................................................................................................................................................................
How To Use Test Tool84................................................................................................................................................................
Alpc Measurement System84................................................................................................................................................................
Alpc Program84................................................................................................................................................................
Execute Alpc Program85................................................................................................................................................................
Optical Power Setting87................................................................................................................................................................
Confirm Optical Power Setting Parameter88................................................................................................................................................................
Optical Power Setting Parameter Range89................................................................................................................................................................
Attachment. Optical Power Measurement90................................................................................................................................................................
Internal Structure Of The Pick-up91................................................................................................................................................................
Block Diagram Of The Pick-up(lpc-812r)91................................................................................................................................................................
Pick Up Pin Assignment92................................................................................................................................................................
Signal Detection Of The P/u93................................................................................................................................................................
Description Of Circuit94................................................................................................................................................................
Alpc (automatic Laser Power Control) Circuit94................................................................................................................................................................
Focus/tracking/sled Servo Circuit95................................................................................................................................................................
Spindle Servo Circuit97................................................................................................................................................................
Major Ic Internal Block Diagram98................................................................................................................................................................
Lic121 (an22113a) : Fep(rf) Analog Signal Processor98................................................................................................................................................................
Block Diagram101................................................................................................................................................................
Ic301 (bd7956fs) : Cd-rom/dvd-rom 7ch Power Driver101................................................................................................................................................................
Dsp Circuit Diagram103................................................................................................................................................................
Rf Circuit Diagram104................................................................................................................................................................
Drive Circuit Diagram105................................................................................................................................................................
Main P.c.board(top View)107................................................................................................................................................................
Main P.c.board(bottom View)108................................................................................................................................................................

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