Epson PowerLite 5000 Service Manual page 44

EPSON PowerLite 5000 Service Manual
Circuit Block Diagram of the Driver Board
RD0-7
IC250
GD0-7
Buffer
BD0-7
C
SCL / SDA
N
1
IC300
0
Flash ROM
0
+22V
+18 V REGULATOR
+12 V
F251 4511.25 A
+5 V
+5 V REGULATOR
+3.3 V
F250 4511.25 A
Figure 2-11
Red Light Valve Driver
(IC900)
CN900
IC100
Display
Controller
+18 V
+12 V
+12 V
REGULATOR
F252CCP2E10 A
+5 V
+3.3 V
+3.3 V
REGULATOR
Display
Control
Signals
Control Signal
Level Shifter
8CH DAC
LCCOM
(Timing)
R G B
Green Light Valve Driver
(IC800)
CN800
2-14
RPD10-17/RQD10-17
CLAMP (Red)
GPD10-17/GQD10-17
CLAMP (Green)
BPD10-17/BQD10-17
CLAMP (Blue)
Display Timing (Red)
Display Timing (Green)
Display Timing (Blue)
SHIFT Clock
Level shifter
Shift Clock 1-6
Filter/Gate
G B
R
Blue Light Valve Driver
(IC700)
CN700