Chapter 2---System Description
J17 |
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| B31 | RED_VIC#1 |
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| B29 | RED_VIC#2 |
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| B27 | RED_VIC#3 |
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| B25 | GRN_VIC#1 |
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| B23 | GRN_VIC#2 |
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| B21 | GRN_VIC#3 |
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EXTERNAL | B19 | BLU_VIC#1 |
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B17 | BLU_VIC#2 |
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VIDEO | B15 | BLU_VIC#3 |
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| B13 | H_VIC#1 |
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| B11 | H_VIC#2 |
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| B9 | H_VIC#3 |
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| B7 | V_VIC#1 |
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| B5 | V_VIC#2 |
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| B3 | V_VIC#3 |
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| A2 | /SEL_VIC#1 |
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| B1 | /SEL_VIC#2 |
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| A1 |
| /SEL_VIC#3 |
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J16 |
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| B32 | RED_OVER |
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FROM | B31 | GRN_OVER |
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B30 |
| BLU_OVER |
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SCB | B29 | OVERLAY |
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FROM RTG | B15 | CLAMP |
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| B15 | BLANKING |
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| B27 | RED_SENS |
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FROM | B26 | GRN_SENS |
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B25 |
| BLU_SENS |
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SCB | B24 |
| RED_THRESH |
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B23 | GRN_THRESH |
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| B22 |
| BLU_THRESH |
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FROM/ | B19 | RED_BEAM |
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B20 | GRN_BEAM |
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TO VAB | B21 | BLU_BEAM |
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| A13 | /VA_OK (/HV_ENA) |
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| B12 | IIC_CLK |
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| B13 | IIC_DATA |
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| A12 | /IIC_SINT |
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FROM | A8 | +5.1V |
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+15V |
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LVPS | A9 |
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A10 |
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| J16 | |
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| H_SYNC |
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| A17 | TO |
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| V_SYNC |
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| A16 | |
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| GRN_SYNC |
| B17 | RTG | |
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| GRN INPUT A28 | ||||
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| RED_VIDEO |
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| B2 | TO |
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| GRN_VIDEO |
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| B4 | VAB |
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| BLU_VIDEO |
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| B6 |
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VIDEO
PROCESSOR
BOARD
TO
RESTORE B16 VAB
RED_G2 |
| A19 | TO |
GRN_G2 |
| A20 | |
BLU_G2 |
| A21 | VAB |
G1_BIAS |
| A11 |
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Figure 2-10. Video Processor I/O Diagram
IIC Interface
The VPB communicates with the SCB via the IIC bus. The information transferred over the bus (as shown in Table
Table
I/O | Information | Description |
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I | RED_CONT | Red Contrast level |
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I | GRN_CONT | Green Contrast level |
I | BLU_CONT | Blue Contrast level |
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I | BRIGHTNESS | Brightness level |
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I | BEAM CURRENT | Beam Current |
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Model 200 Service Manual |
