Philips LC5131, LC-5141 Service Manual

1-1 LC5131/5141	1. Safety guidelines

IMPORTANT SAFETY NOTICE

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 on the schematics or exploded views.

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

Portable LCD projector

In p u t Au to ageim

Standby /O n

tustaS

LC5131/00

LC5141/00

UGO S-light/X-light

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.	Directions for use	7-1
7.	Alignments & Protections	8-1
8.	Parts lists	9-1

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

3122 435 40280

PCS 106 633

PCS 106 634

2. Specifications

2.1Product specifications

UGO	UGO
X-lite	S-lite
800 ANSI lumens	800 ANSI lumens
XGA resolution	SVGA resolution
Compact design - < 2 dm3
Ultra lightweight just 1.3 kg
Easy plug&play
Digital picture enhancement

•Dimensions; 227 x 48 x 177 mm (WxHxD) < 2 dm3

•Net weight 1.3 kg; ca 2.86 lbs

•Advanced compatibility for both data and video input; compatible with main notebook computers

•High contrast ratio; 800:1 (Full on/off)

•Digital picture enhance technologies;

•Digital Zoom (x10), Digital Freeze, Digital

•Keystone correction

•Intuitive Graphic User Interface (GUI) for ease of use

•Auto voltage for safe usage around the world

•Robust, reliable technical design

•Suitable for meeting rooms for 2 to 20 people

•Kensington lock

Technical specifications

DMD™	: 1x 0.67" DMD™
	LC5141 786,432 pixels,Time sequential
	(1024x768)
	LC5131 480,000 pixels,Time sequential
	(800x600)
Brightness	: 800 ANSI lumens
Contrast	: 800:1 (Full on/off )
Lamp	: 130 W UHP lamp
	End user replaceable1000 hours
Lens	: F3.0 ; f = 23 mm
	Fixed Focal length; Manual Focus
	Proj. Dist. 1,2 - 5,8m; Diagonal

	(42 - 200)"
Digital features : Digital Zoom (x10), Digital Freeze,
Input signals
Video	: NTSC 3.85, 4.43 /PAL BG, N, M /Secam
Data	in 4:3 and 16:9 formats
	: PC and Mac compatible, Multi scan
	VGA, SVGA, XGA, SXGA via high
	advanced scaling technology.
	Auto image control Hor. scan rate:
	15-91 kHz; Vert. Refresh rate 50-85 Hz.
Power in	: 110-120 V / 220-240 V; 50/60 Hz; 180 W
Input connections
Video	: S-Video (Y/C DIN)/Video (RCA)/ Stereo
	Audio (2x RCA)/ YCbCr
Data	: Mini sub-D data (15 pin)/PC Stereo
	Audio (M3.5 stereo jack) / Serial mouse
	(9pin Mini DIN); USB port / PS/2
Mains	: Mains input socket (3 pin)
Specialities	: 48 mm Ultra Thin Profile
	800 : 1 Contrast Ratio
	Advanced compression technology for
	full automatic adjust multi scan
	data input handling, VGA up to SXGA
	resolutions to full screen
	Intuitive Graphic User Interface (GUI)
	for ease of use
	Full plug&play compatible (DCC 1 / 2b)
	Full Mirror function
	Acoustical Noise <39 dBA
Dimensions	: 227x 48 x 177 mm (WxHxD); <2 dm3
Net weight	: 1,3 kg; ca 2,86 lbs

LC5131/5141 2-1

Package : UGO LC5141/LC5131

Remote Control + 2x AAA batteries Power cord (1,8m) (2 cords, Continental Europe and USA) VGA Cable (1m)

PC Audio cable

Mouse cable set; 1m, PS/2 ; 1m, USB Audio/Video RCA Cable (1m,Video/Audio stereo)

S-Video cable (1m) Soft carrying bag

User Guide (8 languages - CD-Rom, plus Quick Reference Guide)

Executions : LC 5141/00 Global product in native XGA : LC5131/00 Global product in native SVGA

Optional acc. : New 130 W UHP lamp

Image diagonal size		Projection distance
[inch]	[meters]	[inch]	[meters]
37	0,94	47	1,2
60	1,52	79	2,0
80	2,03	106	2,7
100	2,54	134	3,4
120	3,05	161	4,1
150	3,81	201	5,1
200	5,08	268	6,8

2-2 LC5131/5141

2.2

DMD Chip

Product type

LC5141

LC5131

Number of

1024 (horizontal) x

800 (horizontal) x

pixels

768 (Vertical) x 1

600(Vertical) x 1

Size

0.67 inches

0.67 inches

A

1024 pixels

800 pixels

B

768 pixels

600 pixels

2.3Input termina

1.AUDIO IN (stereo mini-jack)

2.Mouse output terminal (mini-DIN9pin)

3.RGB/Y CbCr IN (miniD-SUB15pin)

4.S-VIDEO IN (S-video terminal)

5.VIDEO IN (video RCA x 1)

Relationship between RGB input terminal and signal

1

2

3

4

5

11		12	13	14	15
6	7	8	9	10
1		2	3	4	5

	Pin	Single	Pin No.	Single
	No.
	1	Red	9	No Connection
	2	Green	10	Digital GND
	3	Blue	11	GND
	4	GND	12	SDA
	5	GND	13	Horizontal Sync
	6	Red GND	14	Vertical Sync
	7	Green GND	15	SCL
	8	Blue GND

Relationship between S-video terminal and signal.

2	1
4	3
Pin No.	Single
1	GND
2	GND
3	Luminance signal
4	Chrominance signal

2.4Projection size and projection distance

The projection size ranges from a minimum of 36 inches to a maximum of 300 inches. The focusing projection distance is between 1.2 and 6.8 meters from the lens surface. Install within this range.

Screen		Width
	Height	Screen size
		(inches in diagonal dimension)

	17.3 o
Main unit	Height to
	screen (H)
	Projection distance (L)

•Horizontal projection position: Left-right symmetry with lens in center.

•Vertical projection position (for XGA)

	Screen	Projection distance L m	Dimension
	size		H cm
	Inches	Meters	Millimeters
	36	1.2	99
	60	2.0	169
	80	2.7	225
	100	3.4	281
	120	4.1	337
	150	5.1	422
	200	6.8	562

•These values are based on design values, and their error is within +/-5%.

Projection distance and projection size

				Projection distance
	0	1	2	3	4	5	6	(m)
					6.8m			Projection height
	200
size	150			5.1m				(m)
			3.4m					5
Screen	100
								4
	80		2.7m
	36	1.2m						3
								2
					17.3 o			1
								0
					Center lens

PCS 106 635

PCS 106 636

3. Warnings & Notes

Warnings

1.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).

LC5131/5141 3-1

Notes

1.The direct voltages and oscillograms should be measured with regard to earth (4), or hot earth (5 ) as this is called.

2.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.

4-1 LC5131/5141	4. Mechanical Instructions

4.1Preparations and Cautions

Items to have on hand:

1.Number 1 and 2 Philip’s head screwdrivers.

2.Precision screwdrivers (Philip’s head and flat head)

3.Wristband to remove static electricity.

Cautions during disassembly and assembly.

1.When carrying out operations remove the power lamp beforehand.

2.Some parts may still be hot immediately after use. Be sure all parts have cooled sufficiently before starting operations.

3.Make sure all parts, screw tightenings and wirings are in the original position.

4.Cautions have been included concerning areas which require particular care when handling parts and carrying out operations. Be sure to observe all cautions.

5.Special parts which are specified for the LC5131/LC5141 models should not be attached to other models.

6.Do not attempt to remodel the equipment.

4.2Disassembly, Assembly

1.Front Panel Section (See Fig 1 and Fig 1-A).

Remove the screws (S-8: 2 screws) as shown in Fig 1.

S-8

Fig 1

Remove the front panel as shown in Fig 1-A.

2.Upper cover Section (See Fig 2)

Remove the screws (S-8, 3 screws, louver screw) as shown in Fig 2.

Remove the upper cover as shown in Fig 2.

Caution: Be careful not to disconnect or break the speaker

Upper cover

Spacer D/M

S-8

S-1
Louver
screw	S-8	Fig 2

Cable

3.Speakers, Buttons, etc. (See Fig 3)

Remove the S-20 as shown in Fig 3 and then remove the speaker button OP and LED lens.

Also push the catches on the front button to remove.

S-20

S-20

LED lens

Speaker Assy	Button
	OP

Front foot

2	Upper cover

Fig 3

1

Front panel	Fig 1-A

Caution: Be careful to disconnect the IR cable.

PCS 106 637

PCS 106 638

4.Disassembly of the front panel section (See Fig 4) Remove the screw (S-12: 1 screw) as shown in Fig 4 and then remove the front door.

Remove the IR board. (S-4: 1 screw) Remove the plates. (S-2: 2 screws) Remove the front hooks on the left and right. (S-7: 1 screw)

S-7

S-22

S-12

S-2

S-7

S-4

Front door

Fig 4

5.F/E board (See Fig 5)

Remove the screws (S-13:1screws, S-5:2screws) shown in Fig 5 and then remove the connectors.

Remove the connector panel.

(S-13: 1 screw, RGB spacer: 2 spacers)

S-13	S-5
S-18	S-18 S-13
	RGB spacers

Connector panel

S-5

F/E board

Fig 5

6.Lamp Driver (See Fig 6)

Remove the screws (S-3, 17: 1 screw each) as shown in Fig 6 and then remove the lamp driver.

S-3

Lamp driver

S-17	Fig 6

LC5131/5141 4-2

7.Lens Base Section (See Fig 7)

Remove the screws (S-7: 4 screws) as shown in Fig 7 and then remove the lens base.

Caution: Be careful when disassembling and assembling equipment that there is no catching of wires, etc. Do not remove the spherical mirror on the inside of the lens base or the cylinder mirror from the lens base as this could cause maladjustments and shadows in the corners of the screen.

S-7

S-7 Lens

Base Section

S-7

Fig 7

8.Heat sink (See Fig 8)

Remove the screws (S-11: 2 screws) as shown in Fig 8 and then remove the heat sink.

Caution: Be careful of the attachment direction of the heat sink

Heat sink A

S-11

Heat sink B

Fig 8

9.DMD chip (See Fig 9)

Install the DMD chip so that the A portion is at the

lower right as shown in Fig 9.

4-3 LC5131/5141

10.DMD, F/M board (See Fig 10)

Remove the screws (S-9: 4 screws) shown in Fig 10

and remove these items from the lens base.

Caution: Be careful not to avoid direct finger contact with the elastomer, the DMD surfaces and terminals or the F/M board terminals.

Also be careful of dust or dirt adhering during attachment.

The DMD, elastomer and F/M board have a direct influence on the image and require special care when handling.

F/M PWB	S-9
F/M Hold

Elastomer

DMD

Holder

Elastomer

Fig 10

11.Projection Lens (See Fig 11)

Remove the screws (S7: 3 screws) shown in Fig 11 and remove the projection lens.

Caution: When assembling be careful to avoid breaking the spherical mirror on the inside of the lens base.

S-7

Projection Lens

Fig 11

S-7

Fig 9	A

12.Color Wheel Section (See Figs 12 and 13)

Remove the screws (S-9: 3 screws) shown in Fig 12 and then remove the color wheel from the lens base. This is a sticky connection, so pull carefully.

Remove the screws (S-4: 2 and S-14:1 screws) shown in Fig 13 and then remove the wheel cover from the color wheel.

Remove the wheel screw shown in Fig 13 and then remove the wheel sensor.

Caution: Excessive tightening of screws during assembly could cause the color wheel to contact other parts so that it does not rotate properly. Assemble the parts to be parrallel. When replacing the color wheel and wheel sensor, readjustments are required. (See page 6).

Color wheel section

S-9

S-9

Fig 12

Wheel cover

Wheel sensor

S-14 S-4

Fig 13

PCS 106 639

PCS 106 640

13.Light Tunnel, Aperture (See Fig 14)

Remove the screws (S-7: 3 screws) shown in Fig 14 and then remove the light tunnel from the lens base. Remove the screws (S- : 2 screws) shown in Fig 14 and then remove the aperture from the lens base.

Caution: Do not disassemble the light tunnel. Do not touch the glass.

		S-7
	Light tunnel
	Aperture	S-7
		Fig 14
	S-4

14.Lamp House Section (See Fig 15)

Remove the screws (S-7: 3 screws) shown in Fig 15 and then remove the lamp house from the lower cover. Remove the screw (S-15: 1 screw) shown in Fig 15 and then remove the thermistor and thermistor plate. Remove the screw (S-7: 1 screw) shown in Fig 15 and then remove the ballast lock base.

Removing the lamp house causes the 40 square fan assembly to come out.

Caution: Be careful of the wiring method for the 40 square fan. The fan passes under the lamp house from below.

S-7

Lamp hous

S-15

40FAN(L)	Thermistor Assy

Thermistor plate

S-7

S-15

Fig 15

LC5131/5141

4-4

5-1

LC5131/5141

5. Block diagrams, Wiring diagram & Oscillograms

15. Power source section (See Fig 16)

5.1 Optical system principle block diagram

Remove the screws (S-7: 2 screws) shown in Fig 16

and then remove the fan base from the cover.

Remove the screws (S-5, 10: 1 screw each, Spacer

D/M: 2 spacers) and then remove the power source.

Note: The power supply fan must be mounted with the wires

up. The lamp fan must be mounted with the wires

down.

S-5

S-10

Spacers D/M

S-21

40FAN DC

Fan

gard S-7

Power source

S-7

Fan base

Fig 16

16.Front and Rear Foot, etc. (See Fig 17)

As shown in Fig 17 remove the front foot in the following order: (1) Press the catch. (2) Push out.

S-7

Lamp limit switch

Rear foot

Front foot

2

1

Fig 17

Rotate the rear foot and remove.

Remove the screw (S-7: 1 screw) shown in Fig 17 and remove the lamp limit switch.

Description of function

1.Lamp

Light source: Flashes 300 times per second as AC lamp.

2.RGBW color wheel

Divides light into the RGBW components using color filters.

The W component allows a bright white to be reproduced.

A rotation detecting sensor is used to time the lamp which is turned OFF at the color filter seam.

The maximum speed is 7,200 rpm.

3.Condenser lens and light tunnel

Collects light divided into RGBW components by the color filter and projects them on the effective surface of reflection mirror 1.

Use of the light tunnel lens increases the peripheral intensity of illumination. It reduces the difference of brightness between the screen center and periphery, reproduces a clear view of even the corners of the screen.

4.Reflection mirror 1 and 2

Reflects light beamed on the mirror effective surface, to the DMD effective surface.

5.DMD chip

Reflects the light by switching on and OFF according to the input source at the ratio of color components for each dot.

6.Projection lens

Enlarges and projects light from the DMD.

7.Screen

The projected light (RGBW components) forms a picture with colors synthesized through afterglow.

PCS 106 641

PCS 106 642