136
2.3 Color Light Sequencing Processing
Color light sequencing processing circuit consists of Motor driver, Motor phase synchronization, Light source
control and synchronization.
(1)
Motor driver drives the color wheel motor. The motor is three phase, 8, 12 or 16 pole, Y configuration, brushless
DC motor.
(2)
Motor phase synchronization circuit uses the CWINDEX to phase and frequency lock the color wheel to a multiple
of Vertical sync (Vsync). Sequences are typically designed for the clock to run at 1.5X, 2X, 2.5X and 3X the Vsync
rate. The DDP ASIC electronics phases the display of the data on the DMD based on the CWINDEX signal. The
CWINDEX typically indicates the beginning of the red light on the DMD device. The DDP ASIC electronics can be
configured to delay the CWINDEX. This is useful for electronic alignment of the color wheel. The CWINDEX
signal is generated by color wheel sensor board that was attached around the motor hub.
(3)
Light source control and synchronization circuit provides a lamp enable (LAMPEN) signal to control the projector
lamp and ballast. The LAMPEN is used for on/off control as well as synchronization of AC lamps. The
LAMPLITZ signal shall be asserted to the DDP ASIC circuits after successful ignition of the lamp. See Figure 7 for
detailed timing on the LAMPLITZ during power up. Note there is strong EMI noise when igniting the lamp, at that
period system should not execute any action.
Figure 7 Lamp control Timing
2.4 DMD Chip Operation
The DDP ASIC provides the 64 data lines and the control signals to the DMD. These signals
control the loading of data into the DMD memory cells. The DDP ASIC is responsible for the
proper timing between the memory load operation and the Reset operation for DMD chip.
Chapter 3 Input Signal Processing Theory
3.1 Overview
Содержание Mainstream MP611
Страница 20: ...20 Chart 1 Example of Pixel Testing Pattern 60 screen size Please contact BenQ RD for file with correct size ...
Страница 32: ...32 Figure 1 Major Blemish Two Zone Screen Non Critical Zone Critical Zone center 25 ...
Страница 43: ...43 Packing ...
Страница 44: ...44 ...
Страница 61: ...61 Disassembly Assembly Exploded View ...
Страница 62: ...62 ...
Страница 63: ...63 ...
Страница 64: ...64 Disassembly Assembly ...
Страница 65: ...65 ...
Страница 66: ...66 ...
Страница 67: ...67 ...
Страница 68: ...68 Level 1 Cosmetic Appearance Alignment Service Appearance ...
Страница 69: ...69 ...
Страница 70: ...70 ...
Страница 71: ...71 ...
Страница 78: ...78 Overfill adjustment As the picture below adjust light pipe to keep overfill image center ...
Страница 84: ...84 ...
Страница 90: ...90 Figure 4 6 Figure 4 9 ...
Страница 91: ...91 ...
Страница 92: ...92 ...
Страница 94: ...94 ٛ V To check and make sure CLIP of CM hook the HSG ILL very Well Fig 5 5 Fig 5 1 Fig 5 2 Fig 5 3 Fig 5 4 ...
Страница 99: ...99 BKT Link Lamp Shield CW Figure9 3 Figure9 4 ...
Страница 104: ...104 3 Example ...
Страница 105: ...105 10 Mechanical Assembly Concerns ...
Страница 112: ...112 ...
Страница 113: ...113 11 Power Assembly Concerns 1 Power board component add GP glue 1 1 CY604 CY605 add glue ...
Страница 114: ...114 1 2 CY625 CY612 add glue ...
Страница 115: ...115 ...
Страница 116: ...116 1 3 C651 R651 add glue 2 SW2 solder by operator ...
Страница 120: ...120 3 640MHZ 3 Add a Gasket on the lamp box 4 720MHZ 4 Add a Gasket on the DMD Board to Engine ...
Страница 121: ...121 ...
Страница 122: ...122 ...
Страница 124: ...124 ...
Страница 128: ...128 Chapter 3 Power Supply Trouble Shooting Guide 1 2 ...
Страница 142: ...142 Bridge converts the AC input into DC output and the CAP is AC filter ...
Страница 149: ...149 Circuit Schematics ...
Страница 150: ...150 ...
Страница 151: ...151 ...
Страница 152: ...152 PCB Artwork ...
Страница 153: ...153 ...
Страница 154: ...154 ...
Страница 155: ...155 ...
Страница 156: ...156 ...
Страница 157: ...157 ...
Страница 158: ...158 ...
Страница 159: ...159 ...
Страница 160: ...160 ...
Страница 162: ...162 Appendix 2 Code List IR RS232 1 IR Code CUSTOMER CODE DATA CODE FUNCTION 2 RS232 command format 1 ...
Страница 168: ...168 ...