131
processor by system firmware so that commands can be issued to configure the DDP ASIC, the analog interface device,
the video decoder, the cooling device, and other system peripheral devices. Please see figure 2.
Figure 2 Main board & Input board BLOCK DIAGRAM
1.2 User Interface Function
(1) Keypad function: There are 9 keypads on top case. Please see Figure 3. MCU does polling on these signals
[KEY8:0] to detect the key pressing action. Each key pressing action will request MCU to execute the specified
program.
(2) Indicator LED function: There are 3 twice color LED on top case. MCU releases the status of program indication
by setting LED signal LED[6:0]. It will show the power status, lamp status, and temperature status.
(3) IR remote function: There are two IR receivers, one is at the front side, and the other one is at back side. The
receiver sensor has 3 legs, pin1 is output, pin2 is ground, and pin3 is VCC (5V). The output pin is pulled high,
and will sink to low when it receives infrared signal coming from remote controller. MCU will decode the signal
and execute related program.
(4) USB function: There is a B type USD terminal for mouse port at back side. MCU supports the universal serial bus
version 1.1 in a slave mode only.
Main Board
A/D converter
D-Sub in
RGB analog signal
YPbPr
D-Sub
out
Triple
video
DDP ASIC
DLP Image
Processor
RGB888
24bits
Digital Signal
NTSC/PAL
/SECAM
Video Decoder
YUV422
16bits
Digital
Signal
Color Wheel
Motor Driver
RAM
DMD Power
and
Reset Driver
DMD
MBRST(1
32 M Flash
Memory
S-Video CVBS
Audio
Volume
、
Mute
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 ...
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Страница 61: ...61 Disassembly Assembly Exploded View ...
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Страница 64: ...64 Disassembly Assembly ...
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Страница 68: ...68 Level 1 Cosmetic Appearance Alignment Service Appearance ...
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Страница 78: ...78 Overfill adjustment As the picture below adjust light pipe to keep overfill image center ...
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Страница 90: ...90 Figure 4 6 Figure 4 9 ...
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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 ...
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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 ...
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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 ...
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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 ...
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Страница 152: ...152 PCB Artwork ...
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Страница 162: ...162 Appendix 2 Code List IR RS232 1 IR Code CUSTOMER CODE DATA CODE FUNCTION 2 RS232 command format 1 ...
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