Barco GRAPHICS 1209S Service Manual page 53

RGB input+Switching module
%ORFNGLDJUDP
6XSSRUW VLJQDOV
EF
VFB_INV
Q23
+VID
+RGsB
COIN
DELAY
SC/CLAMP
Q24
Q25
Q27
CS_INV
Inverter
+
HFB
Inverter
ABL
Blockdiagram
,&
0
G 0 3
1
MUX
Q1
EN
BRT_P1
0
1
9
IC2
2
3
IC2
IC2
Inverter
+VID 0 1 2
+RGsB
L L L X X
L L H X X
H X L X
L
H X H X
L
L H X X L
L X X H
H
IC2
Inverter
+
IC2
Inverter
IC2 IC2
Inverter Inverter
+
IC3
IC3
Inverter
Inverter
R762719
VS
OUT
L
H
L
H
L
H
CLAMP 1.5us
1.5us
BRT_P1
BRT_P 2.1us
BRT_P2
2.1us
ABL_BL
20us
+
+
20us
IC3
ABL_MP
Inverter
Date : 10/02/98 R762719