DIGITAL DISPLAY & MEDIA TRAINING MASTER ......................................................................................... 2-2
ONE PONIT REPAIR GUIDE .......................................................................................................................... 2-77
1. NO POWER PROBLEM ....................................................................................................................... 2-77
2. THE LAYOUT OF MAIN BOARD ......................................................................................................... 2-79
3. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR "PLEASE WAIT" ON FRONT PANEL ... 2-81
4. WIRED NETWORK CONNECTION ERROR ....................................................................................... 2-90
5. BAD HDMI VIDEO / AUDIO OUTPUT .................................................................................................. 2-91
1. POWER SUPPLY ON SMPS BOARD .................................................................................................. 2-93
2. POWER SUPPLY ON MAIN BOARD ................................................................................................... 2-95
3. SYSTEM PART ..................................................................................................................................... 2-97
4. NO CVBS VIDEO OUTPUT .................................................................................................................. 2-99
5. NO AUDIO OUTPUT .......................................................................................................................... 2-100
6. NO HDMI OUTPUT ............................................................................................................................. 2-103
7. NO HDMI INPUT ................................................................................................................................. 2-104
8. TOUCH TROUBLESHOOTING .......................................................................................................... 2-105
WAVEFORMS ................................................................................................................................................ 2-107
1. SYSTEM PART-1 (X-TAL) .................................................................................................................. 2-107
4. HDMI PART ........................................................................................................................................ 2-110
5. MICOM AND MPEG I/F PART............................................................................................................ 2-111
WIRING DIAGRAM ........................................................................................................................................ 2-113
BLOCK DIAGRAMS ...................................................................................................................................... 2-115
1. SMPS BLOCK DIAGRAM ................................................................................................................... 2-115
2. MPEG / AMP BLOCK DIAGRAM ....................................................................................................... 2-117
5. POWER - DSP / ADC / DIR BLOCK DIAGRAM ................................................................................ 2-123
6. POWER - FRONT / i-Pod / USB / Wi-Fi / TOUCH BLOCK DIAGRAM .............................................. 2-125
1. SMPS CIRCUIT DIAGRAM ................................................................................................................ 2-127
12. PWM CIRCUIT DIAGRAM .................................................................................................................. 2-149
13. AMP CIRCUIT DIAGRAM ................................................................................................................... 2-151
15. FRONT CIRCUIT DIAGRAM .............................................................................................................. 2-157
CIRCUIT VOLTAGE CHART ......................................................................................................................... 2-163
1. MAIN P. C. BOARD DIAGRAM .......................................................................................................... 2-165
2. SMPS P. C. BOARD DIAGRAM ......................................................................................................... 2-167
3. AMP P. C. BOARD DIAGRAM ........................................................................................................... 2-169
5. FUNCTION TOUCH P. C. BOARD DIAGRAM ................................................................................... 2-173
6. POWER TOUCH P. C. BOARD DIAGRAM ........................................................................................ 2-174
SECTION 2 ELECTRICAL
CONTENTS
2-1