LG BPM55 Service Manual page 14

Network 3d blu-ray disc / dvd player

Simple manual (2 pages)

Table of Contents

DIGITAL DISPLAY & MEDIA TRAINING MASTER ......................................................................................... 3-2

1. DISTORTED PICTURE ........................................................................................................................... 3-2

2. NO PICTURE .......................................................................................................................................... 3-7

3. PICTURE COLOR ................................................................................................................................. 3-12

4. NOISE/AUDIO PROBLEMS .................................................................................................................. 3-14

5. MISCELLANEOUS ................................................................................................................................ 3-17

6. BLU-RAY PLAYER ............................................................................................................................... 3-26

ONE POINT REPAIR GUIDE .......................................................................................................................... 3-27

1. NO POWER PROBLEM ....................................................................................................................... 3-27

2. LED DOESN'T LIGHT ON .................................................................................................................... 3-28

3. NO BOOTING WHEN YOU TURN THE UNIT ON ............................................................................... 3-29

4. BAD HDMI VIDEO / AUDIO OUTPUT .................................................................................................. 3-38

5. WIRED NETWORK CONNECTION ERROR - (OPTION PART) ......................................................... 3-39

6. WIRELESS NETWORK CONNECTION ERROR - (OPTION PART)................................................... 3-40

ELECTRICAL TROUBLESHOOTING GUIDE ................................................................................................. 3-41

1. POWER SUPPLY ON MAIN BOARD ................................................................................................... 3-41

2. SYSTEM PART ..................................................................................................................................... 3-43

3. NO HDMI OUTPUT ............................................................................................................................... 3-45

WAVEFORMS OF MAJOR CHECK POINT .................................................................................................... 3-46

1. SYSTEM PART - 1 ............................................................................................................................... 3-46

2. SYSTEM PART - 2 (SYSTEM MEMORY) ............................................................................................ 3-47

3. HDMI PART .......................................................................................................................................... 3-48

WIRING DIAGRAMS ....................................................................................................................................... 3-49

BLOCK DIAGRAM .......................................................................................................................................... 3-50

CIRCUIT DIAGRAMS ...................................................................................................................................... 3-51

1. MAIN - DC-DC CIRCUIT DIAGRAM ..................................................................................................... 3-51

2. MAIN - MPEG CIRCUIT DIAGRAM ...................................................................................................... 3-53

3. MAIN - MEMORY & STRAP CIRCUIT DIAGRAM................................................................................ 3-55

4. MAIN - FRONT END CIRCUIT DIAGRAM ........................................................................................... 3-57

5. MAIN - A/V OUTPUT CIRCUIT DIAGRAM ........................................................................................... 3-59

6. TIMER CIRCUIT DIAGRAM.................................................................................................................. 3-61

CIRCUIT VOLTAGE CHART ........................................................................................................................... 3-63

PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 3-65

1. MAIN P.C.BOARD ................................................................................................................................ 3-65

2. TIMER P.C. BOARD ............................................................................................................................. 3-65

SECTION 3

ELECTRICAL

CONTENTS

3-1

Table of Contents