Sanyo PLV-70 Manuel utilisateur

FILE WITH ORIGINAL SERVICE MANUAL

SM5110361 for PLV-70

SS5110737 for PLV-70L

PRODUCT CODE

PLV-70 PLV-70L

1 122 130 60 1 122 130 70

1 122 131 60 1 122 131 70

1 122 131 62 REFERENCE NO. SM5110361-05

FILE NO.

Notice

CORRECTION ●PRODUCTION CHANGE

SERVICE FLASH ADD INFORMATION

REVISION-5

Please add this notice to the Service Manual listed below.

Category : Multi-media Projector Issued Date : July / 2005

PLV-70 M4L-7004

Model : PLV-70L Effective from : Chassis No. M4L-70L01

Canada, U.S./Europe,

Destination : Asia, Africa, U.K. REF. NO. : SM5110361

NOTE: Match the Chassis No. on the unit’s back cover with the Chassis No. in the Service

Manual.

If the Chassis. No. does not match the unit’s, additional service literature is required.

Only the difference service information is given in this manual. For detailed service

information, refer to the original service manual and notice for Models PLV-70, PLV-70L.

Reason of the production change:

As this production change is to comply with RoHS, PWB units and some parts are changed.

Major chaged parts are as follows;

PWB BOARD

Main Board

A/V Board

I/F Board

Control Baord

RC Front Baord

Connect Board

Senser1 Board

-2-

■ Contents

Contents ____________________________________________________ 2

Safety Instructions ____________________________________________ 3

Specifications ________________________________________________ 4

Adjustments after Parts Replacement _____________________________ 5

Circuit Protections ____________________________________________ 6

Fuse _______________________________________________________ 6

Thermal switch _______________________________________________ 6

Interlock switch _______________________________________________ 6

Warning temperature and power failure protection ___________________ 7

Mechanical Disassemblies ______________________________________ 8

Optical Parts Disassemblies ____________________________________ 13

LCD Panel/Prism Ass’y Replacement ____________________________ 18

Lamp Replacement __________________________________________ 19

Optical Adjustments __________________________________________ 20

Electrical Adjustments ________________________________________ 23

Service Adjustment Menu Operation _____________________________ 23

Circuit Adjustments ___________________________________________ 24

Test Points and Locations ______________________________________ 29

Service Adjustment Data Table _________________________________ 30

Electrical Parts List ___________________________________________ 44

Mechanical Parts List _________________________________________ 67

Optical Parts List ____________________________________________ 70

-3-

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.

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 identified 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

provided 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 T

HE PROTECTIVE SHIELD IN POSITION AND PROP

ERLY 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.

■ Safety Instructions

-4-

■ 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

standards against risk of fire, casualty and electrical hazards.

Projector Type Multi-media Projector

Dimensions (W x H x D) 12.6” x 6.6” x 16.8” (319mm x 168mm x 429.5mm)

Net Weight 17.4 lbs (7.9 kg) PLV-70, 17.1 lbs (7.1 kg) PLV-70L

LCD Panel System 1.21” TFT Active Matrix type, 3 panels

Panel Resolution 1366 x 768 dots

Number of Pixels 3,147,264 (1366 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 400”

Horizontal Resolution 800 TV lines (HDTV)

Projection Lens F 1.8 ~2.1 lens with f=48.4mm ~ 62.8mm with motor zoom and focus

Throw Distance 5.0’ ~ 51.3’ (1.5m ~ 15.6m)

Motorized Lens Shift Up and Down

Projection Lamp 200 watts

Input 1 Jacks DVI Terminal (Digital), HDB 15-pin Terminal (Analog) and Stereo Mini Type

Jack (Audio)

Input 2 Jacks BNC Type x 5 (G or VIDEO/Y, B or Cb/Pb, R or Cr/Pr, H and V), Stereo

Mini Type Jack (Audio)

Input 3 Jacks RCA Type x 3 (VIDEO/Y, Cb/Pb, Cr/Pr), RCA Type x 2 (Audio R and L) and

DIN 4-pin (S-Video)

Other Jacks DIN 8-pin (Control port), Wired Remote Jack and Network Board Connector

Jack

Built-in Speakers 2 speakers Stereo (R and L), 2 watts RMS (T.H.D. 10%)

Feet Adjustment 0˚ to 10.5˚

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)

-5-

Condenser lens adjustment ❍ ●

Relay lens adjustment ❍ ●

Contrast Adjustment

R-Contrast adjustment ●

G-Contrast adjustment ●

B-Contrast adjustment ●

Output voltage adjustment ●

+16 V adjustment ●

Video center adjustment ●

NRS adjustment ●

PC pedestal adjustment ●

PC gain adjustment ●

Black level adjustment ●

PC gamma shift adjustment ●

A/D reference adjustment ●

AV pedestal adjustment ●

A/D input adjustment ●

Video pedestal adjustment ●

Video gain adjustment ●

HDTV pedestal adjustment ●

HDTV Gain adjustment ●

Video gamma shift adjustment ●

Common center adjustment ● ●

White balance adjustment ❍ ❍

Disassembly / Replaced Parts

Condenser

Lens

Polarized glass

R G B

Optical Adjustments

Electrical Adjustments

● : Adjustment necessary ❍ : Check necessary

Sub Power

Board Main Board

Relay

Lens

■ Adjustments after Parts Replacement

Power

Board

-6-

● Interlock switch

The interlock switch (SW902) 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 (SW905) inside of the projector to

prevent the internal temperature from rising abnormally. When

the internal temperature reaches near 90˚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. Loosen 2 screws and open the lamp cover.

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

pointed tool.

CAUTION:

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

projector.

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;

Fuse Part No.: 423 025 1201

TYPE T8AH 250V FUSE

LITTEL FUSE INC. TYPE 215008

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 Line Filter Board

Interlock switch

Thermal switch

Lamp cover

■ Circuit Protections

-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

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 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

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 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 filters, 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

filters by pulling the latches of them upward.

3. Clean the air filters with brush or wash out the 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 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 filters

-8-

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

Fig.2-2

1 Remove 5 screws A, 2 screws B, and loosen 2 screws C,

and then take the Cabinet Top upward off.

Note: If you want to remove the Cabinet Front-Top only,

you do not need to remove screws A. Remove 2 screws B

and Lens Front Cover.

1 Cabinet Top removal

1 Turn the Lens Front Cover counter-clockwise and to take

it off by pulling forward as shown in Fig.2-1.

2 Remove the Cabinet Front-Top, Lens Cover Holder and

Lens Cover upward off.

3 Remove 2 screws D to take the Cabinet Front off.

4 Remove the RC Board and speakers on the Cabinet

Front.

2 Cabinet Front removal

Fig.2-1

Cabinet Front-Top

Lens

Front

Cover

Lens Cover Holder

Cabinet Front

Lens Cover

■ Mechanical Disassemblies

-9-

Mechanical Disassemblies

1 Remove 7 screws to take the Main Board upward.

Fig.3

Fig.4

1 Remove 1 screw A and take the Rear Panel ass’y

upward off.

2 Remove 4 screws B to take the fan (FN905) off.

3 Remove 5 screws C and 1 screw D to take AV Board

from the Rear Panel ass’y off.

4 Remove 2 screws E and grounding leads and then

pull up the I/F Board and Holder assy from the bottom

cabinet.

5 Remove 4 screws F to take the I/F Board.

3 Main Board removal

4 AV, I/F Board & Rear Panel removal

Main Board

Rear Panel Ass’y

FN905

AV Board

I/F Board

FEE

-10-

Mechanical Disassemblies

1 Remove 4 screws A to take the Ballast Cover upward

off.

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

3 Remove the Sub Power Board and Drive Board by

pulling them upward.

Fig.5

5 Lamp Ballast Unit removal

Ballast Board

FN903

Sub Power

Board

Drive Board

Ballast Cover

1 Remove 2 screws A and 4 screws B(small) and pull the

Optical Unit upward off.

2 Remove 4 screws C to take the Fan (FN906) off.

3 Remove 1 screws D to take the Fan (FN904) off and 2

screws E to take the air duct off.

Fig.6

6 Optical Unit removal

FN906

FN904

Optical Unit

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