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Wireless Audio -
Soundbar
Model Name HW-H750
HW-H751
Model Code HW-H750/EN
HW-H751/XU
SERVICE MANUAL
Wireless Audio - Soundbar Contents
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. PCB Diagram
HW-H751 / HW-H750 6. Schematic Diagram
Refer to the service manual in the GSPN (see the rear cover) for more information.
Contents
Contents
1. Precaution........................................................................................................................................ 1 - 1
1.1. Safety Precautions ................................................................................................................... 1 - 1
1.2. Servicing Precautions ............................................................................................................... 1 - 3
1.3. Precautions for Electrostatically Sensitive Devices (ESDs) .............................................................. 1 - 4
1.4. Installation Precautions ............................................................................................................. 1 - 5
2. Product Specification ......................................................................................................................... 2 - 1
2.1. Product Feature ....................................................................................................................... 2 - 1
2.2. Specifications.......................................................................................................................... 2 - 2
2.3. Specifications Analysis ............................................................................................................. 2 - 3
2.4. Accessories ............................................................................................................................ 2 - 5
2.4.1. Supplied Accessories ................................................................................................... 2 - 5
3. Disassembly & Reassembly ................................................................................................................ 3 - 1
3.1. Overall Disassembly and Reassembly .......................................................................................... 3 - 1
4. Troubleshooting ................................................................................................................................ 4 - 1
4.1. Checkpoints by Error Mode ....................................................................................................... 4 - 1
4.1.1. No Power................................................................................................................... 4 - 1
4.1.2. No Sound output (Digital) ............................................................................................. 4 - 2
4.1.3. No Sound output (Analog) ............................................................................................ 4 - 6
4.1.4. NFC connection failure................................................................................................. 4 - 9
4.2. Measures to be taken when the Protection Circuit operates............................................................... 4 - 18
4.2.1. AMP Pre-Inspection relating to Power Protection .............................................................. 4 - 18
4.3. Initialization & Update ............................................................................................................. 4 - 19
4.3.1. How to check the Firmware version ................................................................................ 4 - 19
4.3.2. How to initialize.......................................................................................................... 4 - 20
4.3.3. USB Update procedure ................................................................................................. 4 - 21
5. PCB Diagram ................................................................................................................................... 5 - 1
5.1. Wiring Diagram....................................................................................................................... 5 - 1
5.2. AMP&VT PCB Top ................................................................................................................. 5 - 2
5.2.1. Pin Connection ........................................................................................................... 5 - 3
5.2.2. Test Point Wave Form .................................................................................................. 5 - 4
5.3. AMP&VT PCB Bottom ............................................................................................................ 5 - 5
5.4. HDMI PCB Top ...................................................................................................................... 5 - 6
5.4.1. Pin Connection ........................................................................................................... 5 - 7
5.4.2. Test Point Wave Form .................................................................................................. 5 - 8
5.5. HDMI PCB Bottom.................................................................................................................. 5 - 9
5.5.1. Pin Connection ........................................................................................................... 5 - 10
5.6. IR PCB Top ............................................................................................................................ 5 - 11
5.7. IR PCB Bottom ....................................................................................................................... 5 - 12
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