2-1
SECTION 2 ELECTRICAL
CONTENTS
DIGITAL DISPLAY & MEDIA TRAINING MASTER ............................................................................................................. 2-2
1. DISTORTED PICTURE .............................................................................................................................................. 2-2
2. NO PICTURE ............................................................................................................................................................. 2-7
3. PICTURE COLOR .................................................................................................................................................... 2-12
4. NOISE/AUDIO PROBLEMS ..................................................................................................................................... 2-14
5. MISCELLANEOUS ................................................................................................................................................... 2-17
6. BLU-RAY PLAYER ................................................................................................................................................... 2-26
ONE POINT REPAIR GUIDE .............................................................................................................................................. 2-27
1. NO POWER PROBLEM ........................................................................................................................................... 2-27
2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR “WELCOME” ON FRONT PANEL .......... 2-29
3. WIRED NETWORK CONNECTION ERROR ........................................................................................................... 2-38
4. WIRELESS NETWORK CONNECTION ERROR .................................................................................................... 2-39
5. BAD HDMI VIDEO / AUDIO OUTPUT ..................................................................................................................... 2-40
6. NO AUDIO FROM SPEAKER .................................................................................................................................. 2-41
7. NO USB .................................................................................................................................................................... 2-42
ELECTRICAL TROUBLESHOOTING GUIDE ..................................................................................................................... 2-43
1. SYSTEM POWER SUPPLY ON SMPS BOARD ..................................................................................................... 2-43
2. AMP POWER SUPPLY ON SMPS BOARD ............................................................................................................ 2-46
3. POWER SUPPLY ON MAIN BOARD ...................................................................................................................... 2-47
4. SYSTEM PART ........................................................................................................................................................ 2-53
5. NO CVBS VIDEO OUTPUT ..................................................................................................................................... 2-55
6. NO HDMI OUTPUT .................................................................................................................................................. 2-56
7. NO AUDIO OUTPUT ................................................................................................................................................ 2-57
WAVEFORMS ...................................................................................................................................................................... 2-58
1. SYSTEM PART - 1 ................................................................................................................................................... 2-58
2. SYSTEM PART - 2 (SYSTEM MEMORY) ............................................................................................................... 2-59
3. VIDEO PART (100% FULL COLOR BAR) ............................................................................................................... 2-60
4. AUDIO PART - 1 (S/PDIF) ....................................................................................................................................... 2-61
5. AUDIO PART - 2 (I2S) ............................................................................................................................................. 2-62
6. HDMI PART .............................................................................................................................................................. 2-63
WIRING DIAGRAM .............................................................................................................................................................. 2-65
BLOCK DIAGRAMS ............................................................................................................................................................ 2-67
1. OVERALL BLOCK DIAGRAM .................................................................................................................................. 2-67
2. SMPS #1 BLOCK DIAGRAM ................................................................................................................................... 2-69
3. SMPS #2 BLOCK DIAGRAM ................................................................................................................................... 2-71
4. AUDIO BLOCK DIAGRAM ....................................................................................................................................... 2-73
5. SERVO BLOCK DIAGRAM ...................................................................................................................................... 2-75
6. MIC BLOCK DIAGRAM ............................................................................................................................................ 2-77
7. HDMI BLOCK DIAGRAM ......................................................................................................................................... 2-79
8. AMP BLOCK DIAGRAM........................................................................................................................................... 2-81
CIRCUIT DIAGRAMS .......................................................................................................................................................... 2-83
1. SMPS CIRCUIT DIAGRAM ...................................................................................................................................... 2-83
2. MAIN - CPU CIRCUIT DIAGRAM ............................................................................................................................ 2-85
3. MAIN - MEMORY CIRCUIT DIAGRAM ................................................................................................................... 2-87
4. MAIN - LOADER CIRCUIT DIAGRAM ..................................................................................................................... 2-89
5. MAIN - MICOM CIRCUIT DIAGRAM ....................................................................................................................... 2-91
6. MAIN - HDMI CIRCUIT DIAGRAM .......................................................................................................................... 2-93
7. MAIN - ADC/DIR CIRCUIT DIAGRAM ..................................................................................................................... 2-95
8. MAIN - DSP CIRCUIT DIAGRAM ............................................................................................................................ 2-97
9. MAIN - POWER CIRCUIT DIAGRAM ...................................................................................................................... 2-99
10. MAIN - I/O CIRCUIT DIAGRAM ............................................................................................................................. 2-101
11. MAIN - 3DSZ CIRCUIT DIAGRAM ......................................................................................................................... 2-103
12. MAIN - FPGA DDR CIRCUIT DIAGRAM ............................................................................................................... 2-105
13. MAIN - HDMI TX CIRCUIT DIAGRAM ................................................................................................................... 2-107
14. AMP - PWM CIRCUIT DIAGRAM .......................................................................................................................... 2-109
15. AMP - AMP CIRCUIT DIAGRAM ........................................................................................................................... 2-111
16. JACK CIRCUIT DIAGRAM (OPTIONAL PART) ..................................................................................................... 2-113
17. FRONT CIRCUIT DIAGRAM .................................................................................................................................. 2-117
CIRCUIT VOLTAGE CHART ............................................................................................................................................. 2-119
PRINTED CIRCUIT BOARD DIAGRAMS ......................................................................................................................... 2-121
1. SMPS P. C. BOARD .............................................................................................................................................. 2-121
2. MAIN P. C. BOARD ............................................................................................................................................... 2-123
3. AMP P. C. BOARD ................................................................................................................................................. 2-127
4. JACK P. C. BOARD (OPTIONAL PART) ............................................................................................................... 2-129
5. FRONT P. C. BOARD ............................................................................................................................................ 2-131
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