LG BH9430PW Home Cinema System Original Service Manual and Repair Instructions

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BH9430PW 3D Blu Ray home cinema system original service manual as used by all worldwide factory trained LG technicians and service center maintenance employees!

This service guide is vital for all you owners in order to fix, repair and/or troubleshoot this great system the absolute best way there is!

Inside this service manual you will be presented with the following technical information;
PRODUCT SAFETY SERVICING GUIDELINES FOR BD-HTS PRODUCTS
SERVICING PRECAUTIONS

• GENERAL SERVICING PRECAUTIONS
• INSULATION CHECKING PRODEDURE
• ELECTROSTATICALLY SENSITIVE (ES) DEVICES

INITIAL SYSTEM SETUP
HIDDEN KEY MODE
FIRMWARE UPDATE GUIDE
NETWORK SOFTWARE UPDA
TE
SPECIFICATIONS
DIGITAL DISPLAY & MEDIA TRAINING MASTER
1. DISTORTED PICTURE
2. NO PICTURE
3. PICTURE COLOR
4. NOISE/AUDIO PROBLEMS
5. MISCELLANEOUS
6. BLU-RAY PLAYER
ONE POINT REPAIR GUIDE
1. NO POWER PROBLEM
2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR “WELCOME” ON FRONT PANEL
3. WIRED NETWORK CONNECTION ERROR
4. WIRELESS NETWORK CONNECTION ERROR
5. BAD HDMI VIDEO / AUDIO OUTPUT
6. NO AUDIO FROM SPEAKER
7. NO USB
ELECTRICAL TROUBLESHOOTING GUIDE
1. SYSTEM POWER SUPPLY ON SMPS BOARD
2. AMP POWER SUPPLY ON SMPS BOARD
3. POWER SUPPLY ON MAIN BOARD
4. SYSTEM PART
5. NO HDMI OUTPUT
6. NO AUDIO OUTPUT
WAVEFORMS
1. SYSTEM PART - 1 (MPEG CRYSTAL 27 MHZ)
2. SYSTEM PART - 2 (DDR3 MEMORY)
3. SYSTEM PART - 3 (eMMC FLASH MEMORY)
4. AUDIO PART - 1 (S/PDIF)
5. AUDIO PART - 2 (I2S)
6. HDMI PART
WIRING DIAGRAM
BLOCK DIAGRAM
CIRCUIT DIAGRAMS
1. SMPS CIRCUIT DIAGRAM
2. MAIN - MICOM CIRCUIT DIAGRAM
3. MAIN - POWER CIRCUIT DIAGRAM
4. MAIN - MPEG CIRCUIT DIAGRAM
5. MAIN - MEMORY CIRCUIT DIAGRAM
6. MAIN - FRONT END CIRCUIT DIAGRAM
7. MAIN - DSP CIRCUIT DIAGRAM
8. MAIN - ADC/ MIC CIRCUIT DIAGRAM
9. MAIN - I/O CIRCUIT DIAGRAM
10. AMP - PWM CIRCUIT DIAGRAM
11. AMP - AMP CIRCUIT DIAGRAM
12. JACK CIRCUIT DIAGRAM (OPTIONAL PART)
13. FRONT CIRCUIT DIAGRAM
14. TOUCH CIRCUIT DIAGRAM
CIRCUIT VOLTAGE CHART
PRINTED CIRCUIT BOARD DIAGRAMS
1. SMPS P. C. BOARD
2. MAIN P. C. BOARD
3. AMP P. C. BOARD
4. JACK P. C. BOARD (OPTIONAL PART)
5. FRONT P. C. BOARD
6. TOUCH P. C. BOARD
EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION
2. DECK MECHANISM SECTION
3. PACKING ACCESSORY SECTION
4. SPEAKER SECTION
4-1. CENTER SPEAKER
4-2. FRONT SPEAKER
4-3. REAR SPEAKER
4-4. PASSIVE SUBWOOFER
5. WIRELESS RECEIVER SECTION
ONE POINT REPAIR GUIDE
1. “ALL BD DISC” READING ERROR
2. “ALL DVD DISC” READING ERROR
3. “ALL CD DISC” READING ERROR
HOW TO USE THE SA RESET FUNCTION
1. PURPOSE
2. REQUIRED SA RESET.
3. SA RESET PROCEDURE
MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION
1. IC501 (MT8580)
2. IC301 (TPIC2050): 9CH MOTOR DRIVE WITH 3 BEAM LASER DIODE DRIVER
3. PICK-UP CONNECTOR TERMINAL PIN ASSIGNMENTS
BLOCK DIAGRAM
FIRMWARE UPDATE FOR WIRELESS DEVICE
1. WIRELESS RX UPDATE METHOD
2. WIRELESS TX MODULE UPDATE METHOD
ONE POINT REPAIR GUIDE
1. NO POWER PROBLEM
2. NO SOUND
ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER SUPPLY ON SMPS BOARD
2. NO PAIRING
3. NO SOUND
WAVEFORMS
WIRING DIAGRAM
BLOCK DIAGRAM
CIRCUIT DIAGRAMS
1. SMPS CIRCUIT DIAGRAM
2. AMP #1 CIRCUIT DIAGRAM
3. AMP #2 CIRCUIT DIAGRAM
PRINTED CIRCUIT BOARD DIAGRAMS
1. SMPS P. C. BOARD
2. AMP P. C. BOARD

Language: English
Format: PDF
Pages: 147

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