LG BD370 - SECTION 4 HL-04 P LOADER PART

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4-1

Only for training and service purposes

LGE Internal Use Only

SECTION 4

HL-04P LOADER PART

CONTENTS

ELECTRICAL TROUBLESHOOTING GUIDE .................................................................................... 4-2

1. RESET OR POWER CHECK ................................................................................................................... 4-2

2. SYSTEM CHECK ...................................................................................................................................... 4-3

3. TRAY OPERATING IS ABNORMAL ......................................................................................................... 4-4

4. SLED OPERATING IS ABNORMAL ......................................................................................................... 4-5

5. SPINDLE OPERATING IS ABNORMAL ................................................................................................... 4-6

6. FOCUS ACTUATOR OPERATING IS ABNORMAL ................................................................................. 4-7

7. LASER OPERATING IS ABNORMAL ...................................................................................................... 4-8

HOW TO USE THE BAR-CODE SCAN TOOL .................................................................................. 4-9

1. BAR-CODE SCAN SYSTEM CONFIGURATION ..................................................................................... 4-9

2. PICK-UP BAR-CODE SCAN TOOL CONFIGURATION. ......................................................................... 4-9

3. RUNNING BAR-CODE SCAN TOOL ..................................................................................................... 4-10

4. BAR-CODE SCAN PROCEDURE .......................................................................................................... 4-11

INTERNAL STRUCTURE OF THE PICK-UP ................................................................................... 4-12

1. OPTICAL LAYOUT ................................................................................................................................. 4-12

2. SF-BD411 PDIC COMPOSITION ........................................................................................................... 4-13

3. PICK-UP CONNECTOR TERMINAL PIN ASSIGNMENTS .................................................................... 4-14

MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION .................................... 4-15

1. LIC501 (MT8575) : BLU-RAY SIGNAL PROCESSOR SINGLE CHIP ................................................... 4-15

2. LIC301 (R2A30232SP) : SPINDLE MOTOR AND 6CH ACTUATOR DRIVER ...................................... 4-20

CIRCUIT DIAGRAM .................................................................................................................................. 4-23

CIRCUIT VOLTAGE CHART ................................................................................................................. 4-25

PRINTED CIRCUIT BOARD DIAGRAMS .......................................................................................... 4-27