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1-1

CONTENTS

SECTION 1 SUMMARY

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

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

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

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

FIRMWARE UPGRADE METHOD .....................................................................................................................1-6

HOW TO CONNECT AUDIO SET TO POWER SUPPLY ..................................................................................1-7

SECTION 2 ELECTRICAL

ELECTRICAL TROUBLESHOOTING GUIDE & WAVEFORMS .......................................................................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 .....................................................................................2-10

5. CDP ERROR CORRECTION FLOW CHART .........................................................................................2-11

6. USB ERROR CORRECTION FLOW CHART ..........................................................................................2-14

7. BLUETOOTH ERROR CORRECTION FLOW CHART (OPTIONAL) .....................................................2-16

8. AUX ERROR CORRECTION FLOW CHART ..........................................................................................2-17

• WAVEFORMS ...........................................................................................................................................2-18

• CIRCUIT VOLTAGE CHART ....................................................................................................................2-20

INTERNAL BLOCK DIAGRAM OF ICs ...........................................................................................................2-23

1. IC301 (HA13173AH) ................................................................................................................................2-23

2. IC801 (TB2946HQ) ..................................................................................................................................2-25

3. IC802 (BD3702FV) ...................................................................................................................................2-26

4. IC901 (MC5502) .......................................................................................................................................2-27

WIRING DIAGRAM ...........................................................................................................................................2-29

BLOCK DIAGRAM ...........................................................................................................................................2-31

CIRCUIT DIAGRAMS .......................................................................................................................................2-33

1. MAIN CIRCUIT DIAGRAM .......................................................................................................................2-33

2. FRONT CIRCUIT DIAGRAM ...................................................................................................................2-35

3. CDP CIRCUIT DIAGRAM ........................................................................................................................2-37

PRINTED CIRCUIT BOARD DIAGRAMS ........................................................................................................2-39

1. MAIN P.C.BOARD ...................................................................................................................................2-39

2. FRONT P.C.BOARD ................................................................................................................................2-41

3. CDP P.C.BOARD .....................................................................................................................................2-43

SECTION 3 EXPLODED VIEWS

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

2. MECHANISM(PICK-UP) SECTION ...........................................................................................................3-3

SECTION 4 REPLACEMENT PARTS LIST