Philips LC4043 Service Manual

1-1 LC4043

1. Safety guidelines

IMPORTANT SAFETY NOTICE

Portable LCD projector

Proper service and repair is important to the safe, reliable operation of all Philips Consumer Electronics Company** Equipment. The service procedures recommended by Philips and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended.

It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It also is important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Philips could not possibly know, evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, Philips has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by Philips must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.

** Hereafter throughout this manual, Philips Consumer Electronics Company will be referred to as Philips.

WARNING

Critical components having special safety characteristics are identified with an!by the Ref. No. in the parts list and enclosed within a broken line* (where several critical components are grouped in one area) along with the safety symbol

Use of substitute replacement parts which do not have the same specified safety characteristics may create shock, fire, or other hazards.

Under no circumstances should the original design be modified or altered without written permission from Philips. Philips assumes no liability, express or implied, arising out of any unauthorized modification of design. Servicer assumes all liability.

* Broken Line

on the schematics or exploded views.

LC4043/17/40

Hopper XG20

Contents Page

1. Safety guidelines 1-1

2. Specifications 2-1

3. Warnings & Notes 3-1

4. Mechanical instructions 4-1

5. Block diagrams, Wiring diagram & Oscillograms 5-1

6. Diagrams & PWB layouts 6-1

7. Directions for use 7-1

8. Alignments 8-1

9. Parts lists 9-1

PCS 92 688 GB

Published by Consumer Electronics Printed in The Netherlands©Copyright reserved Subject to modification

PCS 92 687 GB

g 3122 435 40160

2. Specifications

LC4043 LC4043

2-1 3-1

3. Warnings & Notes

Technical specifications

LCD

Brightness Contrast Lamp

Lens

Specifications

Dimensions : 315 x 109 x 254 mm (WxHxD); 9 dm

Weight Nett. : 5,5 kg /ca 12 lbs. Package : Hopper XG20

Model

3x 0.9" HT Poly Silicon Active Matrix

2,359,296 pixels, RGB stripe

1000 ANSI Lumen

200:1 (Black/White)

UHP 120 compact; End user

replaceable, up to 4000 hours F1.8 - 2.2; f= 38-50 mm

Manual zoom x1.3; Manual focus

Projection distance 1.1 - 11 m;

Diagonal (44-440)” Longest life and “virtually” constant

light output over entire lamp life projection lamp Philips LIMESCO

matic Multi Scan data input handling, VGA up to SXGA resolutions to full screen (Frame Buffer) Intuitive graphic user interface for

ease of use Full PC control via ergonomic trackball

RC unit Fully Plug and Play compatible

(DDC 1/2b) Line doubling technology for perfect

video

performance : Low noise ventilation : Ceiling mount (Full Mirror) / Standby

: Lens-cap : VGA cable (2m) + programmable MAC

adapter :

Mouse cable set (2m, 8 pin Mini DIN to

RS232; 2m, 8 pin Mini DIN to 4 pin

Mini DIN Apple MAC (ADB)) :

Audio Video Cinch Cable

(2m, Video/Audio stereo) :

Scart adapter; scart to RCA video and

stereo audio :

Power cord (3m) :

Remote control + 3x AA batteries +

mouse driver floppies :

Projector Carrying Bag :

DFU (8 languages) :

LC 4043/40

LC 4043/17

inside for full auto-

Input/Output Capability

INPUT SIGNALS

Video Data

Power In

INPUT CONNECTIONS

Video

Data

Mains

OUTPUT CONNECTIONS

Audio

NTSC 3.58, 4.43/PAL-BG, N, M/Secam

PC and MAC compatible, Multi scan

VGA, SVGA, XGA, SXGA via LIMESCO full screen S VGA display (Frame Buffer); Auto Identification; Hor. scan rate up to 90 kHz; Vert. refresh rate up to 85 Hz. 120-240 V(Full range); 50/60 Hz;

160 W

S-Video (Y/C DIN);Video (Cinch);

Stereo Audio (2x Cinch) Mini sub-D data (15 pin)/PC,

Stereo Audio (M3,5 stereo jack) / Serial mouse (RS232 and ADB) Mains input socket (3 pin)

Stereo Audio (M3,5 stereo jack)

Special features

1000 Ansi Lumen

•

Quiet - a quarter of the noise of current projectors

• (Sound Pressure Level 33 decibels)

• Manual zoom / focus

• Ceiling mountable

• Auto Voltage - automatic worldwide compatibility

• Best picture performance - 1000 Ansi Lumen, longest brightness over time, 85% picture homogeneity

• Philips LIMESCO inside for full automatic Multi Scan data input handling, VGA up to SXGA resolutions without information loss.

•

Philips UHP Lamp; 120W up to 4000 hours, lamp life with ”virtually” constant light output for a perfect picture quality

•

Philips Total Assurance:

reliability

robust design

free technical support. (toll-free)

(LIne MEmory Scan COnverter)

Warnings

Safety regulations require that the unit should be returned in its original condition and that components identical to the original components are used. The safety components are indicated by the symbol

2. ESD

All ICs and many other semiconductors are sensitive to electrostatic discharges (ESD). Careless handling during repair can drastically shorten the life. Make sure that during repair you are connected by a pulse band with resistance to the same potential as the earth of the unit. Keep components and tools also at this same potential.

3. When repairing a unit, always connect it to the mains voltage

via an isolating transformer. The lamp supply and the lamp housing are not mains isolated.

4. Be careful when taking measurements in the high-voltage

section.

5. Never replace modules or other components while the unit is

switched on.

6. When making settings, use plastic rather than metal tools.

This will prevent any short circuits and the danger of a circuit becoming unstable.

7. After repair the wiring should be fastened once more in the

cable clamps for this purpose.

8. In order to prevent measuring errors, the heat sinks should

not be used as reference points for measurements.

9. The Lamp house and the lamp get hot during operation.

Please ensure that they are cooled down before servicing.

10. The lighthouse (optical part) is extremely sensitive to dust.

This part should only be opened in a dust-free environment (class 100 according to the US federal standard 209).

Notes

The direct voltages and oscillograms should be measured with regard to earth (4), or hot earth (

) as this is called.

2. The direct voltages and oscillograms shown in the diagrams

should be measured:

For testpoints Txxxx VIDE;

• using a video colour bar. For testpoints Txxxx DATA;

• using a data greyscale. For testpoints Txxxx DRB;

• using an internal greyscale. For testpoints Txxxx AUD;

• using an audio signal of 1 kHz.

3. The semiconductors indicated in the circuit diagram and in the

parts lists are completely interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.

PCS 92 689 GB PCS 92 690 GB

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