Eiki LC-SD10 Manuel utilisateur

Multimedia Projector

SERVICE MANUAL

PRODUCT CODE

(MP3B) 1 122 223 01

(PP3B) 1 122 226 01

ORIGINAL VERSION

Chassis No. MP3-SD1000

REFERENCE NO. SM5110531

Model No. LC-SD10

(U.S.A., Canada, Europe)

Give complete “Chassis No.” for parts

order or serviceing, it is shown on the

rating sheet on the cabinet on the pro-

jector.

FOREWORD

For your convenience, all service parts, identified in this manual are available through Eiki’s normal distribution chan-

nels.

In addition to service part number, the generic descriptions have been given, where possible, to allow your serv-

ice technicians to substitute equivalent components which might be available from other sources.

All orders for service parts will be honored. However, in instances where generic components are considered to

be available from several common sources, as would be the case with an industry standard fuse, resistor, or semi-

conductor, it may be more economical and expeditious to purchase the part locally.

■Contents

■Safety instructions ________________________________________________3

■Specifications __________________________________________________ 4

■Circuit protections ______________________________________________ 5-6

● Fuse ____________________________________________________ 5

● Thermal switch ____________________________________________ 5

● Lamp cover switch __________________________________________ 5

● Warning temperature and power failure protection ________________ 6

■Lamp replacement ______________________________________________ 7

■Mechanical disassemblies ______________________________________ 8-13

■Optical parts disassemblies ____________________________________ 14-16

■LCD panel/prism ass’y replacement ________________________________ 17

■Adjustments after parts replacement ________________________________ 18

■Optical adjustments __________________________________________ 19-21

●Contrast adjustment ________________________________________ 19

●Condenser lens adjustment __________________________________ 20

●Relay lens adjustment ______________________________________ 21

■Electric adjustments __________________________________________ 22-30

●Service adjustment menu operation____________________________ 22

●Circuit adjustments ______________________________________ 23-25

●Service adjustment data table______________________________ 26-29

●Test points and locations ____________________________________ 30

■Circuit block diagrams ________________________________________ 31-33

■Power supply lines ______________________________________________ 34

■Troubleshooting ______________________________________________ 35-38

●Indicators and Projector Condition ____________________________ 35

●No power ________________________________________________ 36

●No picture ________________________________________________ 37

●No sound ________________________________________________ 38

■Waveforms ____________________________________________________ 39

■Control port functions ________________________________________ 40-43

■Cleaning ______________________________________________________ 44

■IC block diagrams ____________________________________________ 45-48

■Service parts lists ____________________________________________ 49-67

●Electrical parts list ______________________________________ 49-63

●Mechanical parts list ____________________________________ 64-65

●Optical parts list ________________________________________ 66-67

Drawings & Diagrams ________________________________________ A1-A9

■Parts description and reading in schematic diagram ____________________ A2

■Schematic diagrams __________________________________________ A3-A6

■Printed wiring board diagrams __________________________________ A7-A8

■Pins description of ICs, transistors, diodes __________________________ A9

■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.

SAFETY PRECAUTIONS

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 pro-

vided on the cabinet back, cabinet bottom, inside the

cabinet or on the chassis.

3: When replacing a chassis in the cabinet, always be

certain that all the protective devices are installed

properly, such as, control knobs, adjustment covers

or shields, barriers, etc.

DO NOT OPERATE THIS PROJECTOR WITHOUT

THE PROTECTIVE SHIELD IN POSITION AND

PROPERLY 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

operate without danger of electric shock.

SERVICE PERSONNEL WARNING

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 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(15kV - 20kV) 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.

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 there parts

must be made by exactly the same parts.

■Specifications

●The specifications are subject to change without notice.

This symbol on the nameplate means the product is Listed by Underwriters

Laboratories Inc. It is designed and manufactured to meet rigid U.L. safety stan-

dards against risk of fire, casualty and electrical hazards.

Projector Type Multi-media Projector

Dimensions (W x H x D) 10.63” x 3.07” x 7.48” (270mm x 78mm x 190mm) (not including Adjustable Feet)

Net Weight 4.6 lbs (2.1 kg)

LCD Panel System 0.5” TFT Active Matrix type, 3 panels

Panel Resolution 800 x 600 dots

Number of Pixels 1,440,000 (800 x 600 x 3 panels)

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

High Definition TV SIgnal 480i, 480p, 575i, 575p, 720p, 1035i and 1080i

Scanning Frequency H-sync. 15 ~ 80 kHz, V-sync. 50 ~ 100 Hz

Projection Image Size (Diagonal) Adjustable from 34” to 200”

Projection Lens F 1.6 ~ 1.8 lens with f 18.3 mm ~ 21.9 mm with manual zoom and focus

Throw Distance 4.3’ ~ 21.2’ (1.3 m ~ 6.5 m)

Projection Lamp 160 W

Video Input Jack RCA Type x 1 (Video) and and Mini DIN 4 pin x 1 (S-Video)

AV Audio Input Jack Mini Jack (stereo) x 1

Computer Input Terminal (VGA) HDB 15 Terminal x 1

Computer Audio Input Jack Mini Jack (stereo) x 1

Control Port Connector Mini DIN 8 pin x 1

USB Connector USB Series B receptacle x 1

Internal Audio Amp 0.8 W RMS

Build-in Speaker 1 speaker, ø1.3" (32 mm)

Feet Adjustment 0˚ to 8.0˚

Voltage and AC 100 ~ 120V (2.4A Max. Ampere), 50/60Hz (The U.S.A and Canada)

Power Consumption AC 200 ~ 240V (1.2A Max. Ampere), 50/60Hz (Continental Europe and The U.K.)

Operating Temperature 41 ˚F ~ 95 ˚F (5˚C ~ 35˚C)

Storage Temperature 14 ˚F ~ 140 ˚F (-10˚C ~ 60˚C)

Remote Control Unit Wireless Remote Control, batteries AAA, SUM-04 or R03 type x 2

Presentation Remote Control, batteries AAA, SUM-04 or R03 type x 2

Presentation Remote Receiver

The CE Mark is a Directive conformity mark of the European Community (EC).

-5-

●Lamp cover switch

The lamp cover switch (SW8801) cuts off the drive signal to the

lamp circuit when the lamp cover is removed or no close com-

pletely. After opening the lamp cover for replacing the lamp ass’y,

place the lamp cover correctly otherwise the projector can not

turn on.

●Thermal switch

There is the thermal switch (SW902) inside of the projector to

prevent the internal temperature rising abnormally. When the

internal temperature reaches near 100˚C, turn off the AC main

power supply automatically.

The thermal switch is not reset to normal automatically even if the

internal temperature becomes normal. Reset the thermal switch

following procedure.

Check the resistance between terminals of thermal switch by

using the tester. If it has high impedance, thermal switch may be

in operative.

How to reset the thermal switch

1. Remove the cabinet top following to “Mechanical

Disassemblies”.

2. Press the reset button on the thermal switch with a sharp-

pointed tool.

CAUTION:

Before press the reset button, make sure that the AC cord must

be disconnected from the AC outlet.

■Circuit Protections

This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro-

jector, it will automatically turn off by operating one of the following protection circuits.

●Fuse

A fuse is located inside of the projector. When the POWER indica-

tor is not lightning, the fuse may be opened. Check the fuse as fol-

lowing steps.

The fuse should be used with the following type;

How to replace the fuse

1. Remove the cabinet top following to “Mechanical

Disassemblies”.

2. Remove the cover on the Filter Board.

3. Remove fuse from fuse holder.

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

Fuse Part No.: 423 022 2102

TYPE T4.0AH 250V FUSE

LITTEL FUSE INC. TYPE 215004

Fuse

Filter Board

Thermal Switch

Lamp Cover

Lamp Cover Switch

-6- -6-

Circuit Protections

●Warning temperature and power failure protection

The WARNING indicator flashes red and the projector will automatically turn off when the internal temperature of

the projector exceeds the normal temperature or when stopping cooling fans or when the internal power supply

lines are failed.

Check the following possible causes and wait until stopping the WARNING indicator flashing.

Possible causes

- Air filter is clogged with dust particles. Remove dust from the air filter by following instructions in the “Air filter

care and cleaning” below.

- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are

not obstructed.

- Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 ˚C or 41 to 95˚F)

If the WARNING indicator still continues to flash, there may be defects on cooling fans or power supply circuits.

Please check fan operation and power supply lines referring to the “Power Supply Lines Chart”.

Air filter care and cleaning

The removable air filter prevents dust from accumulation on the surface of the projection lens and projection mirror.

Should the air filters become clogged with dust particles, it will reduce the cooling fan’s effectiveness and may

result in internal heat build up and adversely affect the life of the projector.

To clean up the air filters, follow the cleaning procedure

below:

1. Turn the projector off, and disconnect the AC power

cord from the AC outlet.

2. Turn the projector upside down and remove the air fil-

ters by pulling the latches upward.

3. Clean the air filters with a brush or wash out dust and

particles.

4. Replace each air filter properly. Make sure that the air

filters are fully inserted.

CAUTION:

Do not operate the projector with the air filters removed.

Dust may accumulate on the LCD panel and the mirror,

and it may spoil the fine picture image.

Do not put the small parts into the air intake vents. It may

result in the malfunction of the projector. The air filter is

small parts. Take care that children don’t eat or swallow it.

RECOMMENDATION

We recommend avoiding dusty, smoky environments when operating the projector. Usage in these environments

may cause poor image quality.

When using under dusty or smoky conditions, dust may accumulate on optical elements inside the projector. The

condition may degrade the quality of a projected image.

When the above symptoms are noticed, please clean up the LCD panel and lens following to the “Cleaning

Method”.

Air filters

-7-

WARNING:

- Allow a projector to cool, for at least 45 minutes before you open Lamp

Cover. The inside of a projector can become very hot.

- For continued safety, replace with a lamp assembly of the same type.

- Do not drop a lamp assembly or touch a glass bulb! The glass can

shatter and may cause injury.

Procedure

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

cool at least for 45 minutes.

2Remove 1 screw and remove the lamp cover.

3Remove 2 screws and pull out the lamp assembly by grasping the han-

dle.

4Replace the lamp assembly securely and tighten 2 screws.

5Close the lamp cover and tighten 1 screw.

6Connect the AC Power Cord to the projector and turn on the projector.

Note:

- Do not reset the Lamp Replace Counter, except after lamp is replaced.

- The projector can not be turned-on with lamp cover removed, because

when the lamp cover is removed, the lamp cover switch is also released

to switch off the mains power for safety.

7Reset the Lamp Replace Counter, see below explanation.

■Lamp Replacement

1Turn the projector on, and press the MENU button

and the on-screen menu will appear. Press the

POINT LEFT/RIGHT buttons to move the red frame

pointer to the Setting Menu icon.

2Press the POINT DOWN button to move the red

frame pointer to “Lamp counter reset” and then press

the SELECT button. The message “Lamp replace

counter reset?” is displayed. Move the pointer to [Yes]

and then press the SELECT button.

3Another confirmation dialog box appears and select

[Yes] to reset Lamp Replace Counter .

Please refer to the owners manual for further informa-

tion.

Recommendation

Should the air filter become clogged with dust particles,

it will reduce the cooling fan’s effectiveness and may

result in internal heat build up and short lamp life. We

recommend cleaning the air filter after the projection

lamp is replaced.

Refer to “Air Filter Cleaning”.

The LAMP REPLACE indicator will light yellow when

the total lamp used time reaches 2000 hours. This is

to indicate that lamp replacement is required.

The total lamp used time is calculated by using the

below expression;

Total lamp used time = Teco + Tnomal (1+1/4)

Teco :used time in the Eco mode

Tnormal :used time in the Normal and Auto mode

You can check the lamp replace counter following to

below procedure.

1Press and hold the POWER ON-OFF button on the

projector or the remote control unit for more than 20

seconds.

2 The projector used time and lamp used time will be

displayed on the screen briefly.

Lamp cover

Counter

Projector

Lamp

Normal

Eco

Total

130H

24H

100H

130H

Total lamp used time

ORDER REPLACEMENT LAMP

Type No.Service Parts No.

POA-LMP57 610 308 3117

How to reset Lamp Replace Counter

How to check Lamp used time

Screws

Handle

Lamp Assembly

Screw

Projector used time

-8-

1Remove the Air Filter in the side of the set at first.

(If not, the filter would be broken.)

2Remove 4 screws A(M3x6) and 1 screw B(M3x8),

and then take the Cabinet Top upward off.

■Mechanical Disassemblies

Mechanical disassemble should be made following procedures in numerical order.

Following steps show the basic procedures, therefore unnecessary step may be ignored.

Caution:

The parts and screws should be placed exactly the same position as the original otherwise it may cause loss of

performance and product safety.

Fig.1

Cabinet Top removal

Screws Expression

(Type Diameter x Length) mm

T type M Type

Air filter (Panel net_side)

Cabinet Top

-9-

Mechanical Disassemblies

1Remove 4 screws (M3x6) to take the Main Board upward.

Fig.3

Main Board removal

Main Board

1Remove 2 screws A(M3x6) and 2 screws B(M3x6

black) to take the Cabinet Front off.

2Remove 1 screw C (T3x6) to the R/C Board on the

Cabinet Front.

Fig.2

Cabinet Front and R/C Board removal

R/C Board

Cabinet Front

-10-

Mechanical Disassemblies

1Remove 1 screw (M3x6) to take the Thermal Switch

(SW902) and the Cover Spacer off.

Fig.5

Thermal SW removal

Thermal SW

Lamp Cover Spacer

Fig.4

1Remove 1 screw A (M4x4) and take the Rear Panel

ass’y upward off.

2Remove 2 screws B(T3x8) to take the fan (FN903) off.

3Remove 4 screws C(T3x6) and take AV Board from the

Rear Panel ass’y off.

Rear Panel, AV Board and FN903 removal

AV Board

Rear Panel

FN903

Thermal SW Cover

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