Sanyo PLC-XW20A Manual de usuario

PRODUCT CODE

1 122 145 00 PLC-XW20A (MR8A)

1 122 146 00 PLC-XW20A (PR8A)

1 122 146 02 PLC-XW20A (PR8C)

REFERENCE NO. SM5110377-00

CONTENTS

Pages

TECHNICAL SPECIFICATIONS ------------------------------------------------------------- 2

SAFETY INSTRUCTIONS --------------------------------------------------------------------- 3

LAMP REPLACEMENT------------------------------------------------------------------------- 4

PROTECTIONS ---------------------------------------------------------------------------------- 5

MECHANICAL DISASSEMBLIES ----------------------------------------------------- 6 - 10

ADJUSTMENT ---------------------------------------------------------------------------- 11 - 14

OPTION RESISTORS ------------------------------------------------------------------------- 15

CIRCUIT BLOCK DIAGRAM ---------------------------------------------------------------- 15

POWER SUPPLY LINES -------------------------------------------------------------------- 16

POWER SOURCE LIST OF IC ------------------------------------------------------- 17 - 18

ELECTRICAL PARTS LIST ------------------------------------------------------------ 19 - 35

MECHANICAL PARTS LIST & ACCESSORIES --------------------------------- 36 - 37

PIN DESCRIPTION OF DIODE, TRANSISTOR AND IC ---------------------------- 38

SCHEMATIC DIAGRAMS ------------------------------------------------------------- A1 - A6

PRINTED WIRING BOARD DIAGRAMS ------------------------------------------ B1 - B2

Multimedia Projector

SERVICE MANUAL

FILE NO.

Model No. PLC-XW20A

(U.S.A., Canada, Europe

Asia, Africa U.K.)

ORIGINAL VERSION

Chassis No. MR8-XW20A00

(PLC-XW20A)

NOTE: Match the Chassis No. on the

unit’s back cover with the Chassis

No. in the Service Manual.

If the Original Version Service

Manual Chassis No. does not

match the unit’s, additional

Service Literature is required. You

must refer to “Notices” to the

Original Service Manual prior to

servicing the unit.

-2-

■Technical Specifications

0.7" TFT Active Matrix type, 3 panels

Multi-media Projector

6.2lbs (2.8 kg)

10.12" x 2.98" x 9.02" (257mm x 75.8mm x 229mm)

(not including Adjustable Feet)

1024 x 768 dots

2,359,296 (1024 x 768 x 3 panels)

PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N

H-sync. 15 ~ 100 KHz, V-sync. 50 ~ 100 Hz

Adjustable from 34” to 200”

550 TV lines

1 speaker, ø1.1" (28mm)

41 ˚F ~ 95 ˚F (5 ˚C ~ 35 ˚C)

14 ˚F ~ 140 ˚F (-10 ˚C ~ 60 ˚C)

Owner’s Manual

AC Power Cord

Remote Control Unit and Battery

VGA Cable

Carrying Bag

Lens Cover

Projector Type

Net Weight

Dimensions (W x H x D)

Panel Resolution

Number of Pixels

Color System

Scanning Frequency

Projection Image size (Diagonal)

Horizontal Resolution

Built-in Speakers

Operating Temperature

Storage Temperature

Accessories

LCD Panel System

●The specifications are subject to change without notice.

F 1.6 ~ 1.78 lens with f 28.7 mm ~ 34.5 mm with manual zoom and focus

5.3’ ~ 26.6’ (1.6 m ~ 8.1 m)

132 W

RCA Type x 3 (Video/Y, Pb/Cb, Pr/Cr) and Mini DIN 4 pin x 1 (S-Video)

Projection Lens

Throw Distance

Projection Lamp

Video Input Jacks

Mini Jack (stereo) x 1

Audio Input Jacks

(VGA) HDB 15 Terminal x 1

Mini Jack (stereo) x 1

Mini DIN 8 pin x 1

Mini Jack (stereo) x 1

1.0 W RMS

Computer Input Terminals

Computer Audio Input Jack

Control Port Connector

Audio Output Jacks

Internal Audio Amp

0˚ to 10.6˚

Feet Adjustment

Power Source : Lithium Type (CR2025 / 3.0V)

Operating Range : 16.4’ (5m) / ±30˚

Dimensions : 2.1” x 0.28” x 5.3” (54mm x 7mm x 135mm)

Net Weight : 1.27oz (36 g) (including battery)

Remote Control Unit

480i, 480p, 575i, 575p, 720p, 1035i, and 1080i

High Definition TV Signal

USB Series B receptacle x 1

USB Connector

AC 100 ~ 120 V (2.4 A Max. Ampere), 50 / 60 Hz

(The U.S.A and Canada)

AC 200 ~ 240 V (1.2 A Max. Ampere), 50 / 60 Hz

(Continental Europe and The U.K.)

Voltage and

Power Consumption

●LCD panels are manufactured to the highest possible standards. Even though 99.99% of the pixels are effective, a

tiny fraction of the pixels (0.01% or less) may be ineffective by the characteristics of the LCD panels.

-3-

■Safety Instructions

WARNING:

The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of

the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is iden-

tified with the line ( ) in the schematic diagram. For continued product safety and protection of personnel

injury, servicing should be made with qualified personnel.

The following precautions must be observed.

1: An isolation transformer should be connected in the power line between the projector and the AC line before any

service is performed on the projector.

2: Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the cabi-

net or on the chassis.

3: When replacing a chassis in the cabinet, always be certain that all the protective devices are installed proper-

ly, such as, control knobs, adjustment covers or shields, barriers, etc.

DO NOT OPERATE THIS PROJECTOR WITHOUT THE PROTECTIVE SHIELD IN POSITION AND PROPER-

LY SECURED.

4: Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts or

tools have been left inside.

Before returning any projector to the customer, the service personnel must be sure it is completely safe to oper-

ate without danger of electric shock.

■SAFETY PRECAUTIONS

■PRODUCT SAFETY NOTICE

Product safety should be considered when a component replacement is made in any area of the projector.

Components indicated by mark in the parts list and the schematic diagram designate components in which

safety can be of special significance. It is, therefore, particularly recommended that the replacement of the parts

must be made by exactly the same parts.

Eye damage may result from directly viewing the light produced by the Lamp used in this equipment. Always turn

off Lamp before opening cover. The Ultraviolet radiation eye protection is required during this servicing.

Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the stabilizer

generates high voltages(20~25kV) at its starts.

Since the lamp is very high temperature during units operation. Replacement of the lamp should be done at least

45 minutes after the power has been turned off, to allow the lamp cool-off.

■SERVICE PERSONNEL WARNING

Pull out Battery Holder. Replace with new battery. Install

with battery (+),(–) marks properly.

Install battery and

Battery Holder into

Remote Control Unit.

BATTERY

LITHIUM BATTERY

CR2025 (3.0V)

(+) mark indicates

its (+) polarity.

Put Battery + mark

as shown direction.

BATTERY HOLDER

To insure safe operation, please observe the following precautions :

●Do not expose a battery to moisture or heat. Do not charge a battery.

●If a battery have leaked on Remote Cotrol Unit, carefully wipe the case clean and load a new battery.

●Be sure to install battery with correct polarity.

Risk of explosion if battery is replaced by an incorrect type.

Dispose of used batteries according to the instructions.

1 2 3

CAUTION

■REMOTE CONTROL BATTERY INSTALLATION

-4-

■Lamp Replacemant

When the life of Projection Lamp of this projector draws to an end, LAMP REPLACEMENT indicator lights yellow.

When a projected image becomes dark or the color of an image becomes unnatural, replacement of Projection

Lamp is required.

CAUTION

Do not drop a lamp assembly or touch a

glass bulb! The glass can shatter and

may cause injury.

CAUTION

For continued safety, replace with a lamp

assembly of the same type.

Allow a projector to cool for at least 45

minutes before you open Lamp Cover.

The inside of a projector can become

very hot.

LAMP

ASSEMBLY

HANDLE

LAMP COVER

Follow these steps to replace the lamp assembly.

1. Turn off the projector and disconnect AC plug. Allow the projector

to cool for at least 45 minutes.

2. Remove a screw with a screwdriver to remove Lamp Cover.

3. Remove 2 screws with a screwdriver and pull out Lamp Assembly

by grasping Handle.

4. Replace Lamp Assembly with a new one and tighten 2 screws

back. Make sure that Lamp Assembly is set properly. Replace

Lamp Cover and tighten a screw.

5. Connect AC Power Cord to the projector and turn it on.

6. Reset Lamp Replace Counter (refer to the section “Lamp Replace

Counter” below).

Do not reset Lamp Replace Counter when Projection Lamp is

not replaced.

■LAMP REPLACE COUNTER

Be sure to reset Lamp Replace Counter when Lamp Assembly is replaced. When Lamp Replace Counter is

reset, LAMP REPLACE Indicator stops lighting.

1. Turn projector on, press MENU button and ON-SCREEN MENU will appear. Press POINT LEFT/RIGHT

button(s) to move a red frame pointer to SETTING Menu icon.

2. Press POINT DOWN button to move a red frame pointer to “Lamp counter reset” and then press SET button.

The message "Lamp replace counter reset?" is displayed. Move the pointer to [Yes] and then press SET button.

3. Another confirmation dialog box appears and select [Yes] to reset Lamp Replace Counter.

Do not reset Lamp Replace Counter except after Projection Lamp is replaced.

-5-

■Protections

Ass'y Power

Fuse

Holder Power

Reset button

Thermal switch(sw902)

Press

This projector is equipped with the following protections to operate in safety. If the abnormality occurs

inside the projector, it will turn off the projector by operating one of the following protections.

■FUSE FOR CIRCUIT PROTECTION

The fuse is located on the ass'y-power. When either the

LAMP indicator or the READY indicator is not illuminated,

fuse may be opened. Check the fuse as following steps.

1. Remove the ass'y-power following to “Mechanical

Disassemblies”.

2. Remove the fuse from fuse holder.

3. Check the resistance of fuse by using the tester.

To install the fuse, take reversed step in the above.

It should be used the specified fuse as parts list.

■OVERHEATING PROTECTION (The temperature monitor system )

The temperature monitor system is provided to prevents damage of component parts inside the pro-

jector from overheat. Two protection systems are provided. Each system operating as follows.

■ Temperature monitor -1 :

When this function operates, warning-temperature-indica-

tor flashes. And cooling fan continues operating until it

becomes a normal temperature. If it continue to flush and

flash does not stopped, disconnect the AC cord and inves-

tigate the cause of overheating.

■ Temperature monitor -2 :

(thermal switch SW902)

This function (thermal switch SW902) will not operate,

while the temperature monitor -1 is operating normally. If it

has operated, it needs to be reset manually. Disconnect

the AC cord first and investigate the cause of overheating.

After servicing, reset the thermal switch (SW902) as shown

in a figure.

-6-

■Mechanical disassemblies

Hook

Cabinet-front

Cabinet-top

Hook

Cabinet-front

R/C

Cabinet-bottom

1. CABINET - TOP REMOVAL

1. Remove five screws-A.

2. Grasp the rear both ends of Cabinet-front with both

hands, and slightly pull upward.

3. Release hook, by pressing down "C" portion lightly with

finger.

4. Grasp the rear both ends of Cabinet-front with both

hands, pull up and remove upwards.

Note:

Be careful not to damage Hook. Cabinet-top is being fixed

with cabinet-front by hook.

2. CABINET - FRONT REMOVAL

1. Remove four screws A and B.

2. Turn the focus-ring of Projection lens fully clockwise.

3. Set zoom-lever of Projection lens to under lens.

4. Slightly pull the upper part of Cabinet-front forward with

both hands. (hook is released and cabinet front is

removed.)

5. Remove a screw and, next, remove Unit R/C.

Note:

Be careful not to damage Hook. There is hook which is fix-

ing Cabinet-front and Cabinet-bottom under Projection

lens.

Screws-A and screws-B are used different kind screws.

Check the kind of screw, and proper screw should be

used.

-7-

■Mechanical disassemblies

3. ASS'Y - MAIN AND ASS'Y - SUB REMOVAL

1. Remove seven screws and remove Ass'y Main.

2. Remove three screws and remove Ass'y-Sub.

See figure right.

Main

Sub

Power

FN903

4. ASS'Y - POWER AND FAN (FN903) REMOVAL

1. Remove seven screws and remove Ass'y Power.

2. Remove two screws and remove Fan (FN903).

See figure right..

-8-

■Mechanical disassemblies

FN907

Lamp ballast

5. ASS'Y - AV AND FAN (FN907) REMOVAL

1. Remove five screws and remove Ass'y AV.

2. Remove three screws and remove Fan (FN907).

See figure right.

6. ASS'Y - LAMP - BSALLAST REMOVAL

1. Remove six screws and remove Ass'y Lamp-ballast.

-9-

■Mechanical disassemblies

7. OPTICAL UNIT, FAN (FN901) AND LOUVER REMOVAL

1. Remove eight screws and remove Optical unit.

2. Remove three screws and remove Fan(FN901) and

louver.

See figure right.

FN901

Louver

Dukt-FR

Duct-TOP

Duct-PBS

Duct-top-Green

Duct-BTM

FN905

FN906

FN902

FN904

8. AIR DUCTS AND FANS REMOVAL

1. Remove four screws-A and remove Duct-FR and

FN905.

2. Remove two screws-B and remove Duct-PBS and

FN906.

3. Remove three screws-C and remove Duct-TOP and

FN902.

4. Remove two screws-D and remove Duct-TOP-Green

and FN904.

5. Remove screw-E and remove Duct-BTM.

See figure right.

-10-

■Mechanical disassemblies

9. Projection lens and Assembly Panel-Prism removal

1. Remove four screws and remove projection lens.

2. Remove three screws and remove Assembly Panel-

Prism.

See figure right.

Caution :

Don't disassemble Assembly-Panel-Prism other wise

parts may damaged

Ass'y P/Prism

Projection lens

Never touch the electrode

of flexible cables.

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