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4-1

Only for training and service purposes.

SECTION 4

WIRELESS SUBWOOFER PART

CONTENTS

WIRING DIAGRAM ............................................................................................................................................ 4-2

BLOCK DIAGRAM ............................................................................................................................................ 4-3

ONE POINT REPAIR GUIDE ............................................................................................................................ 4-4

1. POWER ON ERROR .............................................................................................................................. 4-4

2. WIRELESS CONNECTION .................................................................................................................... 4-5

WAVEFORMS OF MAJOR CHECK POINT ...................................................................................................... 4-6

1. CRYSTAL ................................................................................................................................................ 4-6

2. FLASH MEMORY ................................................................................................................................... 4-6

3. PVDD ...................................................................................................................................................... 4-7

4. PWM ....................................................................................................................................................... 4-8

5. LED ......................................................................................................................................................... 4-9

PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 4-11

1. SUBWOOFER P. C. BOARD ................................................................................................................ 4-11