Sanyo PLC-XU32 Manual de usuario

PRODUCT CODE

(MK8A) 1 122 138 00

(PK8A) 1 122 139 00

(PK8C) 1 122 139 02

(MK8G) 1 122 138 06

(PK8G) 1 122 139 06

(PK8J) 1 122 139 08 REFERENCE NO. SM5110365

Chassis No. MK8-XU3200

MK8-XU3700

MH8-XU3300

MH8-XU3800

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.

Multimedia Projector

SERVICE MANUAL

FILE NO.

Model No. PLC-XU32

PLC-XU33

PLC-XU37

PLC-XU38

U.S.A., Canada,

Europe, Asia, Africa

U.K

Original Version

PLC-XU33

PLC-XU38

PLC-XU32

PLC-XU37

(MH8A) 1 122 134 00

(PH8A) 1 122 135 00

(PH8C) 1 122 135 02

(MH8G) 1 122 134 06

(PH8G) 1 122 135 06

(PH8J) 1 122 135 08

-2-

■Contents

■Safety instructions ________________________________________________3

■Specifications __________________________________________________ 4

■Adjustments after parts replacement ________________________________ 5

■Circuit protections ______________________________________________ 6-7

● Fuse ____________________________________________________ 6

● Thermal switch ____________________________________________ 6

● Interlock switch ____________________________________________ 6

● Warning temperature and power failure protection ________________ 7

■Mechanical disassemblies ______________________________________ 8-13

■Optical parts disassemblies ____________________________________ 14-17

■LCD panel/prism ass’y replacement ________________________________ 19

■Lamp replacement ______________________________________________ 20

■Optical adjustments __________________________________________ 21-24

●Contrast adjustment ________________________________________ 21

●Condenser lens adjustment __________________________________ 22

●Condenser lens-Out adjustment ______________________________ 23

●Relay lens-Out adjustment __________________________________ 24

■Electric adjustments __________________________________________ 25-30

●Service adjustment menu operation____________________________ 23

●Circuit adjustments ______________________________________ 24-29

●Service adjustment data table______________________________ 30-33

●Test points and locations ____________________________________ 34

■Troubleshooting ______________________________________________ 35-39

●No power ______________________________________________ 35-36

●No picture ____________________________________________ 37-38

●No sound ________________________________________________ 39

●Lens motor problems ______________________________________ 39

■Control port functions ________________________________________ 40-43

■Waveforms __________________________________________________ 44-45

■Cleaning ______________________________________________________ 46

■IC block diagrams ____________________________________________ 47-53

■Service parts lists ____________________________________________ 54-86

●Electrical parts list ______________________________________ 54-78

●Mechanical parts list ____________________________________ 79-80

●Optical parts list ________________________________________ 81-85

Drawings & Diagrams ______________________________________ A1-A15

■Parts description and reading in schematic diagram ____________________ A2

■Circuit block diagram ____________________________________________ A3

■Power supply lines ______________________________________________ A4

■Schematic diagrams ________________________________________ A5-A11

■Printed wiring board diagrams ________________________________ A12-A14

■Pins description of ICs, transistors, diodes __________________________ A15

-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.

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 - 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.

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.

DO NOT ATTEMPT TO SERVICING THE

REMOTE CONTROL UNIT.

Laser Beam may be leaked out when in disassemble

the Unit. As the Laser Beam used in this Remote con-

trol unit is harmful to the eyes.

LASER RADIATION

DO NOT STARE INTO BEAM

MAX. OUTPUT: 1mW

WAVE LENGTH: 650 ±20nm

CLASS II LASER PRODUCT

This product is complied with 21 CFR

part 1040.10

CAUTION LASER RADIATION

DO NOT STARE INTO BEAM

CLASS 2 LASER PRODUCT

LASER-STRAHLING

NICHT IN DEN STRAHL BLICKEN

LASER KLASSE 2

IEC60825-1, Am. 1 1997

MAX OUTPUT ( ) : 1 mW

WAVE LENGTH ( ) : 650±20nm

-4-

Projector Type Multi-media Projector

Dimensions (W x H x D) 13.11”x 3.52”x 9.96”(333mm x 89.5mm x 253mm)

Net Weight 9.3 lbs (4.2 kg) (PLC-XU32, XU37), 9.8 lbs (4.4 kg) (PLC-XU33, XU38)

LCD Panel System 0.9”TFT Active Matrix type, 3 panels

Panel Resolution 1024 x 768 dots

Number of Pixels 2,359,296 (1024 x 768 x 3 panels)

Color System 6 color system (PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N)

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

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

Projection Image Size (diagonal) Adjustable from 31”to 300”(PLC-XU32, XU37)

Adjustable from 34”to 300”(PLC-XU33, XU38)

Horizontal Resolution 800 TV lines

Projection Lens F 1.7 ~ 2.0 lens with f 37.4mm ~ 48.3mm with motor zoom and focus (PLC-XU32, XU37)

F 1.9 ~ 2.1 lens with f 21.3mm ~ 25.6mm with motor zoom and focus (PLC-XU33, XU38)

Throw Distance 5.3’~ 40.0’(1.6m ~ 12.2m) (PLC-XU32, XU37)

3.0’~ 22.6’(0.9m ~ 6.9m) (PLC-XU33, XU38)

Projection Lamp 200watts

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

Audio Input Jacks RCA Type x 2

Computer Input Terminal DVI-I Terminal (Digital/Analog)

Monitor Output Terminal (VGA) HDB15 Terminal x 1

Computer Audio Input Jack Mini Jack (stereo)

Control Port Connector Mini DIN 8 pin x 1

USB Connector USB Series B receptance x 1

Audio Output Jacks RCA Type x 2

Internal Audio Amp. 1.0watt RMS (monaural)

Built-in Speaker 1 speaker, 1.18”x 1.57”(30mm x 40mm)

Feet Adjustment 0˚to 15.6˚

Voltage and AC 100 ~ 120V (3.6A Max. Ampere), 50/60Hz (The U.S.A and Canada)

Power Consumption AC 200 ~ 240V (1.8A 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 Transmitters Wireless Remote Control, batteries AA, UM3 or R06 Type x 2

■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.

-5-

Condenser lens adjustment ❍●

Condenser lens-out adjustment ❍●

Relay lens-out adjustment ❍●

Contrast Adjustment

R-Contrast adjustment ●

G-Contrast adjustment ●

B-Contrast adjustment ●

Output voltage adjustment ●

Fan voltage adjustment ●

Pedestal adjustment ●

NRS adjustment ●

Signal center adjustment ●

Black level adjustment ●

PC offset adjustment ●

PC gain adjustment ●

AV gain adjustment ●

Common center adjustment ● ●

Gamma shift adjustment ❍ ●

White balance adjustment ❍ ❍

Disassembly / Replaced Parts

LCD/

Prism

Ass’y

Condenser

Lens

Polarized glass

RGB

Optical Adjustments

Electrical Adjustments

● : Adjustment necessary ❍ : Check necessary

P. F.

Board

Main

Board

Condenser

Lens-Out

■Adjustments after Parts Replacement

Relay

Lens-Out

Power

Board

-6-

●Interlock switch

The interlock switch (SW904) cuts off the AC mains power supply

when the lamp cover is removed. 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 from 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.

CAUTION:

Before press the reset button, disconnect the AC cord from the

projector.

■Circuit Protections

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

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

●Fuse

The fuse is located inside of the projector. When either the LAMP

indicator or the READY indicator is not illuminated, fuse may be

opened. Check the fuse as following steps.

It should be used the specified fuse as follows;

How to replace the fuse

1. Remove the cabinet top following to “Mechanical

Disassemblies”.

2. Remove the 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

LITTLE FUSE INC. TYPE 215004

Fuse

Thermal switch (SW902)

Reset Button

Line Filter Board

-7-

Circuit Protections

●Warning temperature and power failure protection

The TEMP WARNING indicator flashes red and the projector will automatically turn off when the internal tempera-

ture 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 TEMP 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 TEMP WARNING indicator still continues to flash, there may be defects on cooling fans or power supply cir-

cuits. 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 filter become clogged with dust particles, it will reduce the cooling fan’s effectiveness and may result

in internal heat build up and reduce the life of the projector.

To clean up the air filter, follow the cleaning procedure

below:

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

from the AC outlet.

2. Turn the projector up side down and remove an air filter

by pulling the latches of them upward.

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

particles.

4. Replace the air filter properly. Make sure that the air fil-

ter is fully inserted.

CAUTION:

Do not operate the projector with the air filter removed. The

dust is stuck 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 to avoid dusty, smoky place for operating the projector. Using in dusty place may cause the picture

of poor quality.

When using under the dusty or smoky conditions, dust may accumulate on the LCD panel and lens inside it, and

may resultantly be projected on the screen together with the picture.

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

Method”.

Air filter

-8-

1Remove 4 screws Ato take the Cabinet Top Ass’y upward off.

2Remove the Control Panel off from the Cabinet Top by lifting the edge of

control panel.

■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

1Remove 8 screws to take the Main Board upward off.

Fig.2

Cabinet Top and Control Panel removal

Main Board removal

Main Board

Control panel

Cabinet top

Temp board

-9-

Mechanical Disassemblies

1Remove 1 screw Ato release a grounding wire.

2 Pull the Rear Panel ass’y upward.

3Remove 4 screws Band remove the AV Board.

4Remove 4 screws Cand remove the DVI Board.

5Remove 4 screws Dand remove the speaker.

6Remove 1 screws Eand remove the Temp Board..

Fig.3

Fig.4

1Remove 4 screws A and unhook 2 hooks Bat the both of left and right

side, and the take the Front Panel ass’y off.

2Remove 1 screw Cto take the R/C Board off.

AV, DVI, Temp Board and Speaker removal

Front Panel and R/C Board removal

DVI board

AV board

Speaker

R/C board

-10-

Mechanical Disassemblies

1Remove 1 screw Aand disconnect the Lamp Socket.

2Remove 2 screws Bto take the Lamp Ballast ass’y upward off.

3Remove 2 screws Cto take the isolation sheet off.

4Remove 4 screws Dto take the lamp ballast board off.

Fig.5

1Remove 3 screws Aand pull the Filter Board ass’y upward.

2Remove 1 screw Bto take the grounding lead from the cabinet bottom.

3Remove 4 screws Cto take the Filter Board off.

Fig.6

Lamp Ballast Unit removal

Filter Board removal

Lamp ballast board

Filter board

Isolation sheet

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