Table of Contents
Introduction
Set Operation Highlights................................................................................................................2
Picture formats ..............................................................................................................................3
Native format............................................................................................................................3
4x3 format ................................................................................................................................3
Panoramic format.....................................................................................................................3
Zoom feature............................................................................................................................3
Tuning the ATSC channels ............................................................................................................4
Overall Power Block ......................................................................................................................8
AC Input.........................................................................................................................................9
Standby Power Supply ..................................................................................................................9
Main Power Supply .......................................................................................................................10
Power Fail detection circuit ...........................................................................................................13
ATSC Power Interface for HD version...........................................................................................14
Epic Power Interface .....................................................................................................................15
Horizontal Output circuit ...............................................................................................................16
High Voltage and Dynamic drive ...................................................................................................16
Vertical Amplifier ............................................................................................................................16
Sweep Failure detection and Blanking ..........................................................................................20
Video Signal Flow block ................................................................................................................21
Side Jack Panel ............................................................................................................................21
NTSC AV inputs and switching......................................................................................................21
NTSC SSB Processing .................................................................................................................25
ATSC block diagram - HD Version ................................................................................................25
ATSC Block diagram - Epic version ..............................................................................................25
HD-DW module signal flow ..........................................................................................................30
YUV to Y Pb Pr Converter ............................................................................................................31
AV3 and AV4 Inputs and Switching ...............................................................................................33
Scaler Block...................................................................................................................................34
SSM video drive ............................................................................................................................36
Sharpness Control ........................................................................................................................37
Tint Control ....................................................................................................................................37
CRT drive.......................................................................................................................................37
HOP IO ..........................................................................................................................................41
CRT panel......................................................................................................................................41
Audio Signal flow ...........................................................................................................................43
SSB Sound processor ...................................................................................................................43
Audio Amplifier...............................................................................................................................43
Shutdown Mute..............................................................................................................................47
Convergence processor ................................................................................................................48
Intellisense Convergence correction ............................................................................................48
Intellisense Sensing Circuit ...........................................................................................................48
Convergence Horizontal Output ...................................................................................................51
Convergence Vertical Output ........................................................................................................51
Set Control and I2C Busses ..........................................................................................................54
OSD Signal Path ...........................................................................................................................54
Troubleshooting .............................................................................................................................57
Picture problems............................................................................................................................57
Audio Problems .............................................................................................................................58
Service Modes...............................................................................................................................61
Содержание DPTV400 Series
Страница 9: ...7 FIGURE 3 EPIC REAR JACK PANEL Page 6 ...
Страница 10: ...SSB ATSC POWER INTERFACE PANEL SSM HD DW LSB AC INPUT FOCUS BLOCK FG2 CRT PANEL BOARD LOCATIONS Page 7 ...
Страница 14: ...FIGURE 6 STANDBY POWER SUPPLY Page 11 ...
Страница 15: ...FIGURE 7 MAIN POWER SUPPLY Page 12 ...
Страница 20: ...FIGURE 11 HORIZONTAL OUTPUT Page 17 ...
Страница 21: ...FIGURE 12 HIGH VOLTAGE Page 18 ...
Страница 22: ...FIGURE 13 VERTICAL AMPLIFIER Page 19 ...
Страница 25: ...FIGURE 15 VIDEO SIGNAL FLOW BLOCK Page 22 ...
Страница 26: ...FIGURE 16 SIDE JACK PANEL Page 23 ...
Страница 27: ...FIGURE 17 SSM NTSC AV INPUTS AND SWITCHING Page 24 ...
Страница 29: ...FIGURE 18 NTSC SSB SIGNAL PROCESSING Page 26 ...
Страница 30: ...FIGURE 19 HD ATSC BLOCK Page 27 ...
Страница 31: ...FIGURE 20 EPIC ATSC BLOCK Page 28 ...
Страница 32: ...FIGURE 21 HD DW MODULE Page 29 ...
Страница 35: ...FIGURE 23 AV3 AND AV4 INPUTS AND SWITCHING Page 32 ...
Страница 38: ...FIGURE 25 SSM VIDEO DRIVE Page 35 ...
Страница 41: ...FIGURE 26 SHARPNESS CONTROL Page 38 ...
Страница 42: ...FIGURE 27 TINT CONTROL Page 39 ...
Страница 43: ...FIGURE 28 CRT DRIVE Page 40 ...
Страница 45: ...FIGURE 30 CRT PANEL Page 42 ...
Страница 47: ...FIGURE 31 AUDIO SIGNAL FLOW BLOCK Page 44 ...
Страница 48: ...FIGURE 32 SSB AUDIO PROCESSING Page 45 ...
Страница 49: ...FIGURE 33 AUDIO AMPLIFIER Page 46 ...
Страница 52: ...FIGURE 35 CONVERGENCE PROCESSOR Page 49 ...
Страница 53: ...FIGURE 37 INTELLISENSE SENSING CIRCUIT Page 50 ...
Страница 55: ...FIGURE 38 CONVERGENCE HORIZONTAL DRIVE Page 52 ...
Страница 56: ...FIGURE 39 VERTICAL CONVERGENCE DRIVE Page 53 ...
Страница 58: ...FIGURE 40 SET CONTROL AND I2C BUSSES Page 55 ...
Страница 59: ...FIGURE 41 OSD SIGNAL PATH Page 56 ...
Страница 62: ...Figure 59 FIGURE 42 WIRING INTERCONNECT ...
Страница 71: ...FIGURE 44 SAM MENUS Page 68 ...
Страница 77: ......
Страница 78: ...MMARTIN 04 13 04 ...