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Home Theater BD Player HTB4520G/51 TABLE OF CONTENTS Page Location of PC Boards & Versions Variation ... 1 Specifications ... 2 Safety Instruction ... 3 Software Upgrade Instruction...4 Troubleshooting... 5 Disassembly Instructions ... 6 Set Block Diagram ... 7 Set Wiring Diagram ... 8 Circuit Diagram & PCBA Layout... 9 Set Mechanical Exploded View ...10 Revision List ... 11 Published by Arya & Lynn WK1415 Subject to modification 3140 038 61920 2 1 PCBA Locations : FRONT CONTROL BOARD LOADER (BT) POWER BOARD MAIN BOARD AMPLIFIER BOARD Reminder: As BT and NFC need to be paired , and BT is on Front control board , when one of BT , NFC or Front control Board needs to be replaced , all of these three parts need to be replaced together. VERSION VARIATIONS Type / Versions HTB4520 Board in used Service Policy G/51 MAIN BOARD M POWER BOARD C AMPLIFIER BOARD C FRONT CONTROL BOARD C NFC BOARD M LOADER M Tips C -- Component Lever Repair M -- Module Lever Repair