JVC Model 200 - Manual (Page 39)

Chapter 2---System Description
B31 RED_VIC#1
B29 RED_VIC#2
B27 RED_VIC#3
B23 GRN_VIC#2
B21 GRN_VIC#3
B19 BLU_VIC#1
B25 GRN_VIC#1
B24 RED_THRESH
B23 GRN_THRESH
B22 BLU_THRESH
B25 BLU_SENS
B17 BLU_VIC#2
B15 BLU_VIC#3
B13 H_VIC#1
B9 H_VIC#3
B7 V_VIC#1
B5 V_VIC#2
B11 H_VIC#2
B3 V_VIC#3
GRN_G2 A20
BLU_G2 A21
G1_BIAS A11
RED_G2 A19
B20 GRN_BEAM
B21 BLU_BEAM
A13 /VA_OK (/HV_ENA)
B19 RED_BEAM
A8 +5.1V
A9 +15V
A10 -15V
B12 IIC_CLK
B13 IIC_DATA
A12 /IIC_SINT
B27 RED_SENS
B26 GRN_SENS
B29 OVERLAY
B15 CLAMP
B15 BLANKING
RESTORE B16
A2 /SEL_VIC#1
B1 /SEL_VIC#2
GRN_VIDEO B4
RED_VIDEO B2
BLU_VIDEO B6
V_SYNC A16
H_SYNC A17
GRN_SYNC B17
GRN INPUT A28
A1 /SEL_VIC#3
B32 RED_OVER
B31 GRN_OVER
B30 BLU_OVER
J17
J16
J16
EXTERNAL
VIDEO
FROM
SCB
FROM RTG
FROM
SCB
FROM/
TO VAB
FROM
LVPS
TO
RTG
TO
VAB
TO
VAB
TO
VAB
VIDEO
PROCESSOR
BOARD
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 2-6) is
indicated as follows (I = Input to the VPB, O = Output from the
VPB):
Table 2-6. Video Processor IIC communication
I/O Information Description
I RED_CONT Red Contrast level
I GRN_CONT Green Contrast level
I BLU_CONT Blue Contrast level
I BRIGHTNESS Brightness level
I BEAM CURRENT Beam Current
Model 200 Service Manual 2-25