Casio XJ-450 Guía de solución de problemas

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

3.3V

Lamp

250W

UHE

To PWB-GY791-1

DMD PCB GY791-2

Color Wheel

AF/Zoom Motor

Optical Module

TPA0172

FAN

Thermistor

Lamp

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

KEY

—3 —

2-2. Protection Circuit 1

13V

3.3V

KEY

PW265

MAIN CPU

Sub CPU

Display Controller

DDP1000

DAD

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

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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