Casio XJ-450 Guide de dépannage
R
XJ-450
MAR. 2004
(without price)
Ver.7 : Feb. 2006
CONTENTS
1. SPECIFICATIONS................................................................................................................................ 1
2. BLOCK DIAGRAM
2-1. CONSTRUCTION OF WHOLE UNIT ............................................................................................ 2
2-2. PROTECTION CIRCUIT 1............................................................................................................. 3
2-3. PROTECTION CIRCUIT 2............................................................................................................. 4
3. BASIC PRINCIPLE
3-1. DATA PROJECTOR ..................................................................................................................... 5
3-2. DISPLAYED PIXEL....................................................................................................................... 6
3-3. BASIC STRUCTURE .................................................................................................................... 7
4. REPAIR PRECAUTIONS ..................................................................................................................... 8
5. PASSWORD....................................................................................................................................... 10
6. DISASSEMBLY AND ASSEMBLY .................................................................................................... 11
7. DIAGNOSTIC PROGRAM.................................................................................................................. 26
8. DATA BACKUP.................................................................................................................................. 31
9. ADJUSTMENT ................................................................................................................................... 42
10. TROUBLESHOOTING ....................................................................................................................... 43
11. EXPLODED VIEW .............................................................................................................................. 47
12. PARTS LIST ....................................................................................................................................... 50
13. SCHEMATIC DIAGRAMS .................................................................................................................. 54
— 1 —
1. Specifications
Projection System DLP (DMD, single panel)
DMD Size 0.7inch
Number of Pixels XGA (1024 ×768)
Projection Lens Auto, optical zoom (×2); auto focus
F = 2.0 to 2.8 f = 20 to 40mm
Light Source 250W high-pressure mercury lamp
RGB input terminal RGB mini D-Sub 15-pin ×1
(Also used as component signal input terminal.)
VIDEO input terminal RCA pin jack ×1
S-VIDEO input terminal Mini DIN4-pin ×1
Audio input terminal Stereo mini jack ×1
Audio output 1W monaural
USB port USB TYPE B
Environment Operating Temperature: 5 to 35°C (41 to 95°F)
Operating Humidity: 20 to 80% (non-condensation)
Power Requirements 100-240V AC, 50/60Hz
Dimensions 278(W) ×64(H) ×197(D) mm (excluding projections)
(10.9 ×2.5 ×7.8 inch)
Weight Approximately 2.4kg (5.3 lbs)
Display Languages A Model: English, French, German, Italian, Spanish,
Swedish, Korean, Japanese
B Model: English, Spanish, Chinese (Simplified),
Chinese (Traditional), Japanese
* Specifications are subject to change without notice.
— 2 —
2. Block Diagram
2-1. Construction of Whole Unit
128Mbit
RD-RAM
PW265
MAIN CPU
DDP1000
DMD Controller
THC7216
SAA7115
A/D Converter
Sub CPU
POWER SUPPLY
330W 13V
5V
3.3V
Lamp
250W
UHE
To PWB-GY791-1
DMD PCB GY791-2
Color Wheel
AF/Zoom Motor
Optical Module
TPA0172
FAN
FAN
Thermistor
Lamp
SW
Control
DMD
USB
LED
CPU
AF Sensor
EEPROM
I-Chip
keystone
Audio
RGB
S-Video
Video
MAIN PCB-GY791-1
Video Decoder
FLASH
ROM
12 0.7inch
XGA DDR
108MHz DDR
10x10x10bit RGB
FLASH
ROM
Motor
Driver
DAD1000
DMD driver
DMD
IR
KEY
—3 —
2-2. Protection Circuit 1
13V
5V
3.3V
KEY
PW265
MAIN CPU
Sub CPU
Display Controller
DDP1000
DAD
CW
DMD Controller
FAN
Thermistor
Detects abnormal
condition
Detects abnormal condition
Temperature
Surplus voltage
Surplus current
Thermostat
Monitors runaway
User
2Requests lighting
1ON Key
Monitors
runaway 3Requests
lighting
Detects abnormal
condition
Detects abnormal
condition
4Permits lighting 6Lighting signal
5Lamp output 250W
Detects abnormal
condition
Detects abnormal
condition
Detection SW Detects abnormal
condition
AF/Zoom Motor
POWER SUPPLY
330W
Lamp
—4 —
2-3. Protection Circuit 2
Lamp
Exterior case (magnesium alloy)
Fireproof enclosure / Protection ground
Power unit (330W)
Circuit which detects that the lamp is on
Excess current, excess voltage, excess
heat protection
Thremostat Lens
DMD
Thermistor
Lamp cover detect SW
Color wheel Motor
Detects rotation
Motor (for ZOOM)
Detects rotation
Motor (for AF)
Detects rotation
Control circuit (Secondary circuit)
Counts hours for which the lamp has been lit
Temperature monitoring
Detects different abnormal conditions
Cooling FAN
Detects rotation
Th
Th
Th
Th
Th Th
Th
Blast wall
—5 —
3. Basic Principle
3-1. Data projector DLP single panel metho
lamp
projection lens
lens
DMD
color wheel
condenser lens
Total reflection mirror
DLP single panel method
—6 —
3-2. Displayed pixel
One mirror makes up one pixel.
Clear image with high contrast
Bright, because the open area ratio is high
Light source
3 DMDTM Micro mirror device (side)
Light absorber Projection lens
3 pixel image onto the
screen
—7 —
3-3. Basic structure
— 8 —
4. Repair Precautions
(1) Record /collection defective parts
쮿Record
• OPM unit
1Record the serial number.
• Lamp (only during the warranty period)
1Used hours (if not known precisely, approximate hours of use)
2Lot No.
• Power source / Main PCB / Sub PCB
1Lot No.
쮿Collection
• All the replaced parts will be collected.
Note: Make sure to specify the lot No. details of defects and approximate days (months) of use.
• Send the collected units to:
Casio Techno Co.,Ltd.
Overseas Service Division Market Quality Control Department.
쮿Basic Precautions
1Before repairing, record the information below.
Lamp time, Unit Time, ERROR code (total of ten)
2When replacing the main PCB, input the lamp time and unit time again (to correctly figure out used hours of
the lamp or the OPM unit).
3If the projector does not boot normally and the lamp time and the unit time are not known, check with the
user about the approximate hours (Especially if the lamp time is set to 0, "replace lamp" message will not
appear at a correct timing.)
Even the approximate hours are not known by the user, input from 50 to 100 hours as the estimate.
4When replacing the lamp with a new one, input 0 as the lamp time. When replacing the OPM unit or main
PCB with new ones, leave the unit time as it is.
5Custom logo is not cleared by "Initialize ALL". It has to be initialized in the Custom logo menu.
6When replacing the main PCB whose custom logo is set by the user, the custom logo cannot be transferred.
Tell the user that the custom logo has to be set again.
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