ViewSonic PJ1158-1 Manuel utilisateur

Service Manual

ViewSonic

381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Model No. VS11459

ViewSonic PJ1158-1

XGA LCD Projector

(PJ1158-1_SM Rev. 1bOct.2006)

reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or

computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,

manual or otherwise, without the prior written permission of ViewSonic Corporation.

Disclaimer

ViewSonic makes no representations or warranties, either expressed or implied, with respect to the

contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular

purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time

to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or

changes.

Trademarks

ViewSonic is a registered trademark of ViewSonic Corporation.

All other trademarks used within this document are the property of their respective owners.

Optiquest is a registered trademark of ViewSonic Corporation.

Revision History

Approval

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DCN Number ECR Number

Documents Number Description of Changes EditorRevision SM Editing Date

1a Initial Release

BonnieT.

9/1/06 VS-D060107

PJ1158-1

Sophia Kao

VS-E060384

VS-E060385

10/31/06 Correct Service parts Adjust foot assy. (P. 58, 59)

Update Disassembly diagram (P.49)

TABLE OF CONTENTS

2. Specification

3. Names of each part

5. Troubleshooting

8. Disassembly diagram

9. Replacement parts list

6. Service points

1. Precautions and Safety Notices

4. Adjustment

7. Wiring diagram

10. RS-232C commands

12. Connector connection diagram

13. Basic Circuit diagram

11. Block Diagram

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Be sure to read this manual before servicing. To assure safety from ﬁre, electric shock, injury, harmful

radiation and materials, various measures are provided in this Multimedia LCD Projector. Be sure to

read cautionary items described in the manual to maintain safety before servicing.

Caution

1. When replace the lamp, to avoid burns to your ﬁngers. The lamp becomes too hot.

2. Never touch the lamp bulb with a ﬁnger or anything else. Never drop it or give it a shock. They may

cause bursting of the bulb.

3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of

power unit (circuit) and power unit (ballast), after turn on the projector.

4. Do not touch the exhaust fan, during operation.

5. The LCD module assembly is likely to be damaged. If replacing to the LCD LENS/PRISM assembly,

do not hold the FPC of the LCD module assembly.

6. Use the cables which are included with the projector or speciﬁed.

Service Warning

Warning

The technical information and parts shown in this

manual are not to be used for: the development,

design, production, storage or use of nuclear, chemical,

biological or missile weapons or other weapons of

mass destruction; or military purposes; or purposes that

endanger global safety and peace. Moreover, do not

sell, give, or export these items, or grant permission for

use to parties with such objectives. Forward all inquiries

to the SUPPLIER.

1. Precautions and Safety Notices

• High Brightness • Remote Control Via Your Web Browser

• Low Noise • Rich Connectivity

Features

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2. Specifications

Liquid

crystal

panel

Drive system TFT active matrix

Panel size 2.0cm(0.79 type)

Number of pixels 1024 (H) x 768 (V)

Lamp 285W UHB

Digital

signal M1-D

Type:T.M.D.S

Amplitude differential signal : DC : 150~1200mV

AC : 1.56Vp-p

RGB

signal

RGB IN

1Video : Analog 0.7Vp-p(75Ωtermination)

H/V. sync. : TTL level (positive/negative)

Composite sync. : TTL level

RGB OUT

Video:Analog 0.7Vp-p, 75Ωoutput impedance (positive)

H/V. sync.: TTL level (positive/negative)

Composite sync.: TTL level

VIDEO

signal

VIDEO IN 1.0Vp-p (75Ωtermination)

S-VIDEO IN

Y signal: 1.0±0.1Vp-p, (75Ωtermination)

C signal: 0.286±0.1Vp-p (NTSC burst signal, 75Ωtermination)

0.3±0.1Vp-p (PAL/SECAM burst signal, 75Ωtermination)

COMPONENT

VIDEO

Y 1.0±0.1Vp-p, 75Ωtermination (positive)

CB/PB0.7±0.1Vp-p, 75Ωtermination (positive)

CR/PR0.7±0.1Vp-p, 75Ωtermination (positive)

AUDIO

signal

AUDIO IN 1 500mVrms, 47kΩor more (max. 2Vrms)

AUDIO IN 2

AUDIO IN 3/4 L/R 500mVrms, 47kΩor more (max. 2Vrms)

AUDIO OUT 0~500mVrms, output impedance 1kΩ(max. 2Vrms)

Speaker output 4W x 4

Power supply AC100~120V/5.0A, AC220~240V/2.1A

Power consumption 460W

Dimensions 418 (W) x 139 (H) x 319 (D) mm (Not including protruding parts)

Weight 7.1kg

Temperature range Operation : 5~35°C

Storage : -20~60°C

Accessories

Remote control x1

RGB cable x 1

Power cords x 3

Audio/Video cable x 1

Batteries x 2

User’s manuals x 1set

LENS CAP x 1

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3. Names of each part

Projector

●

(1) Speakers (x 4)

(2) Focus ring

(3) Zoom ring

(4) Lamp cover

The lamp unit is inside.

(5) Lens shift cover

(6) Horizontal lens shift dial

(7) Vertical lens shift dial

(8) Front cover

(9) Lens

(10) Lens cover

(11) Remote sensors (x 3)

(12) Elevator feet (x 2)

(13) Elevator knobs (x 2)

(14) Filter cover

The air ﬁlter and intake vent are

inside.

(15) Exhaust vents

(16) Intake vents

(17) Rivet hole

(18) Handle

(19) Battery cover

(20) Control panel

(21) Rear panel

WARNING ►HOT! : Do not touch around the lamp cover and the exhaust

vents during use or just after use, since it is too hot.

►Do not look into the lens or vents while the lamp is on, since the strong light

is not good for your eyes.

►Do not grab the front cover to hold the projector up, since the projector may

drop down.

►Do not handle the elevator knobs without holding the projector, since the

projector may drop down.

CAUTION ►Maintain normal ventilation to prevent the projector from

heating up. Do not cover, block or plug up the vents. Do not place anything that

can stick or be sucked to the vents, around the intake vents. Clean the air ﬁlter

periodically.

(12)

(13)

(17)

(19)

(16)

(20)

(11)

(1)

(21)

(18)

(1)

(2)

(3)

(8)

(15)

(12)

(10) (9) (11)

(12) (13)

(14)

(11)

(1)

(20)

(4)

HOT!

(7)

(6)

(5)

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Control panel

(1) STANDBY/ON button

(2) MENU button

It consists of four cursor buttons.

(3) INPUT button

(4) POWER indicator

(5) TEMP indicator

(6) LAMP indicator

Rear panel

(1) Shutdown switch

(2) Security slot

(3) Security bar

(4) AC inlet

(5) Power switch

(6) RGB1 port

(7) RGB2 port

(8) CONTROL port

(9) M1-D port

(10) VIDEO port

(11) S-VIDEO port

(12) COMPONENT

(Y, CB/PB, CR/PR) ports

(13) AUDIO IN1 port

(14) AUDIO IN2 port

(15) AUDIO IN3 (R/L) ports

(16) AUDIO IN4 (R/L) ports

(17) RGB OUT port

(18) AUDIO OUT port

(19) REMOTE CONTROL port

(20) LAN port

CAUTION ►Do not use the security bar and the security slot to prevent the

projector from falling down, since it is not designed for it.

►Use the shutdown switch only when the projector is not turned off by normal

procedure, since pushing this switch stops operation of the projector without

cooling it down.

(6)

(5)

(4)

(1) (2) (3)

VIDEO

CONTROL

AUDIO IN 1

AUDIO IN 2

REMOTE

CONTROL

(3.5Φ)

S-VIDEO

LAN

AUDIO

OUT

AC IN

I O

RLRL

AUDO IN 3 AUDIO IN 4

RGB

OUT

RGB1 RGB2 M1-D

Y CB/PB

CR/PR

(14) (13) (17) (6) (7) (20) (18) (9) (19) (8)

(2)(1)

(10) (11) (15) (16) (12)

(5) (4) (3)

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Remote control

(1) Laser pointer

It is a beam outlet.

(2) LASER INDICATOR

(3) LASER button

(4) STANDBY/ON button

(5) VOLUME button

(6) MUTE button

(7) VIDEO button

(8) RGB button

(9) SEARCH button

(10) AUTO button

(11) ASPECT button

(12) POSITION button

(13) KEYSTONE button

(14) MAGNIFY - ON button

(15) MAGNIFY - OFF button

(16) FREEZE button

(17) BLANK button

(18) MY BUTTON - 1 button

(19) MY BUTTON - 2 button

(20) MENU button

(21) Lever switch : acting 3 functions as below.

Cursor button ▲: to slide toward the side marked ▲.

Cursor button ▼: to slide toward the side marked ▼.

ENTER button : to push down the center point.

(22) Cursor button ◄

(23) Cursor button ►

(24) RESET button

(25) ESC button

(26) Mouse left button

(27) Mouse right button

(28) PAGE UP button

(29) PAGE DOWN button

(30) Wired remote control port

(31) Battery cover

(32) Battery holder

(33) Frequency switch

WARNING ►Do not look into the beam outlet and

point the beam at people and pets while pressing the

LASER button, since the beam is not good for eyes.

CAUTION ►Note that the laser beam may result

in hazardous radiation exposure. Use the laser pointer

only for pointing on the screen.

BLANK LASER

ASPECT

ESC MENU RESET

POSITION AUTO

MAGNIFY

MY BUTTON

VOLUME

ON 1

MUTE

OFF 2

FREEZE KEYSTONE SEARCH

PUSH

ENTER

PAGE UP

PAGE DOWN

STANDBY/ON

VIDEO RGB

LASER

INDICATOR

(11)

(22)

(28)

(20)

(25)

(12)

(14)

(15)

(16)

(13)

(30)

(27)

(21)

(23)

(29)

(24)

(10)

(18)

(5)

(6)

(9)

(19)

(26)

(17)

(4)

(7)

(2) (1)

(3)

(8)

Back of

the remote control

(32)

(33)

(31)

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4. Adjustment

4-1 Before adjusting

4-1-1 Selection of adjustment

When any parts in the table 4-1 are changed, choose the proper adjusting items with the chart.

Table 4-1: Relation between the replaced part and adjustment

Replaced

part

Adjustment

Flicker

(Chap.4-2)

Ghost

(Chap.4-3)

DC OFF

(Chap.4-4)

E-POS

(Chap.4-5)

White

balance

(Chap.4-6)

Color

uniformity

(Chap.4-7)

Dichroic

optics unit

LCD/LENS

prism

assembly

PWB

assembly

Main

Lamp

unit

assembly

: means need for adjustment. : means not need for adjustment.

: means recommended.

4-1-2 Setting of condition before adjustments

1. Before starting adjustments, warm up projector

for about 10 minutes.

Turn off the automatic keystone function in OPTION

Menu.

If you changed [AUTO KEYSTONE] from [TURN

ON] to [TURN OFF], set to the [TURN ON] after

adjustment.

2. Set Zoom Wide to Max. And project an image

with more than 1m (40 inches) in diagonal size.

3. Set the lens position to the center, using horizontal

and vertical lens shift dials.

4. Normalizing the video adjustments

Press the [MENU] button to display the EASY

menu. If Advanced menu comes up, move to the

Easy menu.

Select the RESET in the EASY menu and press

the [ ] or [ENTER] button to open the RESET

dialog. Choose the EXECUTE with the [ ] button.

Note that the projector will not allow you to reset

its adjustment values with no signal input.

5. Perform all adjustments from the FACTORY

MENU. Operate as follows to display the

FACTORY MENU.

When you use the remote control...

a. Press the [MENU] button of the remote

control to display the Easy menu. (If the

Advanced menu appears, move to the Easy

menu.)

b. Select the RESET in the Easy menu, and

then press the [ ] or [ENTER] button.

c. Next, press the [RESET] button one time. And

hold the [RESET] button for 3 seconds or

longer (the FACTORY MENU will appear).

When you use the keypad of the projector...

a. Press the

[],

[ ]

or [

] button of the

projector to display the Easy menu. (If the

Advanced menu appears, move to the Easy

menu.)

b. Select the RESET in the Easy menu, and

then press the [ ] or [ENTER] button.

c. Next, press the [ ] button one time. And

repress and hold the [ ] button together with

the [INPUT] button for 3 seconds or more (the

FACTORY MENU will appear).

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4-3 Ghost adjustment

Test pattern for the adjustment Adjustment procedure

1. Make this adjustment after completing the ad-

justment in the section 4-2.

Set 0 to the GHOST R, G, B in OPTION-SERVICE-

GHOST Menu.

Use DAC-P - GHOST - R: in the FACTORY MENU

to adjust so that R color ghost is at a minimum.

(Set the adjustment value to default, and then

raise the value. When a ghost appears to the left

of a vertical line, reduce the value by 6 steps.)

3. In the same way, use DAC-P - GHOST-G: in

the FACTORY MENU to adjust so that G color

ghost is at a minimum.

4. In the same way, use DAC-P - GHOST-B: in

the FACTORY MENU to adjust so that B color

4-2 Flicker adjustment

(V.COM adjustment)

Test pattern for the adjustment Adjustment procedure

Use DAC-P - V.COM - R: in the FACTORY

MENU to adjust so that the flicker at the center of

the screen is less than the flicker at the periphery.

(When the flicker is about the same across the

whole screen, adjust so that the flicker at the center

of the screen is somewhat less than elsewhere.)

2. In the same way, use DAC-P - V.COM-G: in the

FACTORY MENU to adjust the G color flicker.

3. In the same way, use DAC-P - V.COM-B: in the

FACTORY MENU to adjust the B color flicker.

NOTE: The test pattern shown on the left some-

times has a horizontal line across the screen.

4-4

DC OFF adjustment

(vertical bars adjustment 1)

Test pattern for the adjustment Adjustment procedure

1. Make this adjustment after completing the ad-

justment in the section 4-3.

Use STRIPE - DCOFF - No. 0 - R : in the FACTO-

RY MENU and use it so that vertical bars are min-

imized.

3. In the same way, use STRIPE - DCOFF - No. 0 -

G : in the FACTORY MENU and use it so that

vertical bars

are minimized.

4. In the same way, use STRIPE - DCOFF - No. 0 -

B : in the FACTORY MENU and use it so that

vertical bars

are minimized.

Press ENTER key

30%

0/255

112/255

/255

112

/255

136

/255

160

/255

160

/255

136

/255

112

/255

128/255

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