Changhong Electric PT4206, Service Manual, Page: 8 / 48

8
GREEN7
12 19 BLUE0 BLUE7 Blue output data
67 DATACK Output data clock
66 HSOUT HSYNC output
65 SOGOUT Sync-on- Green Slicer output
64 VSOUT VSYNC output
37 MIDSCV Internal mid-scale voltage bypass
58 REFBYP Internal reference bypass
31 VSYNC Vertical SYNC input
30 HSYNC Horizontal SYNC input
43 BAIN Blue analog input
49 SOGIN Sync-on- Green analog input
48 GAIN Green analog input
54 RAIN Red analog input
29 COAST Hold PLL frequency and do not track HSYNC
38 CLAMP External clamp input(we connect it to ground
55 A0 Serial interface address pin
56 SCL I
2
C bus clock
57 SDA I
2
C bus data
33 FILT PLL connect to external filter
26 27 39
42 45 46
51 52 59
62
AVDD Analog power
11 22 23
69 78 79
V33 Digital output power
34 35 PVDD PLL power
1 10 20 21
24 25 28
32 36 40
41 44 47
50 53 60
61 63 68
80
GND ground
MST9885 Block Diagram