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CONTENTS

SECTION 1 SUMMARY

SERVICING PRECAUTIONS .............................................................................................................................1-2

ESD PRECAUTIONS ..........................................................................................................................................1-3

SPECIFICATIONS ..............................................................................................................................................1-4

LOCATION OF USERS CONTROLS ................................................................................................................. 1-5

HOW TO SETTING THE OPTION CODE ..........................................................................................................1-6

FIRMWARE UPGRADE METHOD .....................................................................................................................1-7

HOW TO CONNECT AUDIO SET TO POWER SUPPLY ..................................................................................1-8

SECTION 2 ELECTRICAL

ELECTRICAL TROUBLESHOOTING GUIDE ....................................................................................................2-1

1. SYSTEM CONTROL ERROR CORRECTION FLOW CHART .................................................................2-1

2. SOUND ERROR CORRECTION FLOW CHART ......................................................................................2-4

3. DISPLAY ERROR CORRECTION FLOW CHART ....................................................................................2-7

4. TUNER ERROR CORRECTION FLOW CHART .......................................................................................2-8

5. USB ERROR CORRECTION FLOW CHART ............................................................................................2-9

6. AUX ERROR CORRECTION FLOW CHART ..........................................................................................2-11

WAVEFORMS ...................................................................................................................................................2-12

CIRCUIT VOLTAGE CHART ............................................................................................................................ 2-13

INTERNAL BLOCK DIAGRAM OF ICs ...........................................................................................................2-14

1. IC601 (BD3702FV) ...................................................................................................................................2-14

2. IC801 (LV5693P) .....................................................................................................................................2-15

3. IC804 (TB2931HQ) ..................................................................................................................................2-17

WIRING DIAGRAM ...........................................................................................................................................2-19

BLOCK DIAGRAMS .........................................................................................................................................2-21

1. MAIN BLOCK DIAGRAM .........................................................................................................................2-21

2. FRONT BLOCK DIAGRAM ......................................................................................................................2-23

3. ELECTRICAL BLOCK DIAGRAM ............................................................................................................2-25

CIRCUIT DIAGRAMS .......................................................................................................................................2-27

1. MAIN_1 CIRCUIT DIAGRAM ...................................................................................................................2-27

2. MAIN_2 CIRCUIT DIAGRAM ...................................................................................................................2-29

3. FRONT CIRCUIT DIAGRAM ...................................................................................................................2-31

PRINTED CIRCUIT BOARD DIAGRAMS ........................................................................................................2-33

1. MAIN P.C.BOARD ...................................................................................................................................2-33

2. FRONT P.C.BOARD ................................................................................................................................2-35

SECTION 3 EXPLODED VIEWS

1. CABINET AND MAIN FRAME SECTION ..................................................................................................3-1

SECTION 4 REPLACEMENT PARTS LIST