Service manual

2-4
EMP-S3
SEIKO EPSON Revision:B
2.1.2 Control Circuitry
The control circuits are illustrated in the following block diagram.
Figure 2-3. Control Circuit Block Diagram
PC/VIDEO I/F
PC
DSUB15
Monitor Out
VIDEO
Audio
DDC
YUV
Sync
DSUB15
DDC
YUV
Sync
CVBS
RCA
Y/C
DIN4
RCA-
L
RCA-
USB-B
FLASH ROM
16Mbit
KEY
MATRIX
LED
LAMP Ballast
AC
Power Supply
Circuit
HUMAN I/F
IR
SRAM
1Mbit
DDC EEPROM
V850/SA1-26
PISCES2
A/D Converter
Chroma
IC105
1
W
Vol Control,Mute
Buffer
Buzzer
BideoAMP
EL8302
POWER SUPPLY
Image Processor
Main CPU
Frame Memory
Resizing
Frame Rate Conversion
Color Space Conversion
OSD
AMP
PANEL DRIVER BLOCK
Serial DAC
Thermister
Newly added part
FAN Driver
MONITOR OUT TEST
CONNECTOR
Driver ASIC
GAUGE5 IC1100
NRS
DD5
DD5
DD 5
RGB RGB
R
+
IC180
IC100
IC1700
IC1001
IC1002 IC1003 IC1005 BA00ASFP
IC302
IC300