2-2
EP731
SERVICE MANUAL
Introduction
Fundamental Principle
Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware Upgrading Procedure DDC Key-In Procedure Appendix
2-1 Electronic Function Block Diagram
M1-DA
Port
Video
Port
Audio
Port
Power Control
Interface
Video
Processor
SAA7118
DVI
Receiver
SiI141
A/D
Converter
AD9888-
170MHz
Xtal=20MHz
MCLK=125MHz
DCLK=60MHz
Serial
EEPROM
Flash
ROM
Pixelworks
Image
Processor
PW166-
20K
RGB Data
Control Signal
DCLK=60MHz
DC 3.3V, 5V,
12V
100MHz
Crystal
or OSC
DLP DATA Processor -
DDP 1000
RAMBUS
RDEAM
128MBIT
60MHz OSC
DMD Board
SR16C DMD
RESET DRIVER
DMD MIRROR
0.7 XGA DDR
MOTOR
CONTROLLER
Main Board
VGA &
Digital
Input
Video
Input
IR Signal
&
Remote
Mouse
Display
Image
PROJECTION
LENS
COLOR
WHEEL
RGB Light Source
Light
Source
DC
to
DC
BALLAST
150W LAMP
Thermal
Board
Interlock
Switch
Thermal
Sensor*1
Fan*3
Normal=AC 85V Lamp turning on=AC
6
12KV
12V to
Lamp
Driver
Control
Signal
Lamp Enable & LampLit
DC
400V
Power
AC
100V ~
240V
D
port
V port
G
port
Video
Signal
Processor
PW1230
Audio
Input
DC 3.3V, 5V,
12V
Control Signal
Control Signal
Audio
Device
Remote
Mouse
Device
DMD DRIVE
VOLTAGE
GENERATION
FLASH
MEMORY
RAMBUS
CLOCK
GEN.
(DRCG)
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