AOC L1940 Service Manual

19" LCD Colour Monitor

Service

SH4 HP L1940

Service

EJ6B6CT/74 EJ6B6CT/00

Horizontal frequencies

30-83kHz

TABLE OF CONTENTS

Description Page

General Product Specification

Scaler ~32 Scaler ----------------------------------------------------------------------------------------------------------33~34

Power Schematic Diagram Power Board Control Schematic Diagram ----------Control Board C.B.A. --------------------------------------------------------------------------------------------------------40 Spareparts list Recommended parts list Different Parts List-------

Schematic Diagram Board C.B.A.

C.B.A.

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

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CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.

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SAFETY NOTICE

~27

~36

~38

~41 ~43

REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES

Published by BCU Monitors Printed in Suzhou Copyright reserved Subject to modification K Jun. 30 2005

3138 106 10487

HP L1940

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GENERAL PRODUCT SPECIFICATION

HP L1940

GENERAL PRODUCT

SPECIFICATION

. ANALOG AND DIGITAL DUAL INPUT

. AUTO PICTURE ADJUSTMENT

. 15 FACTORY PRESET MODES 10 USER MODES

. USER FRIENDLY OSD DISPLAY FOR MODE IDENTIFICATION/ADJUSTMENT

. DDC 2B COMMUNICATION CAPABILITY and DDC/CI SUPPORT

. MAX. RESOLUTION 1280*1024 NON-INTERLACED AT 76 HZ

. 19" COLOR TFT LCD FLAT PANEL

. EASY TILT & SWIVEL BASE

. FULL RANGE POWER SUPPLY 90 - 265 VAC

. CE ENVIRONMENTAL POLICY

. ANTI-GLARE TO REDUCE LIGHT REFLECTION

. POWER MANAGEMENT CAPABILITY

. TCO2003

. USB 2.0 HUB

2005-06-03

Thomas Chen

19 inch LCD Monitor

TYPE : EJ6B6CT/74 BRAND : HP L1940

2005-06-03

8639 000 16572

590

GENERAL PRODUCT SPECIFICATION(Continued)

CONTENTS

1.0 Foreword

2.0 Product profile

2.1 LCD

2.2 Scanning frequencies

2.3 Video dot rate

2.4 Power input

2.5 Power consumption

2.6 Dimensions

2.7 Weight

2.8 Functions

2.9 Ambient temperature

2.10 Regulatory compliance

3.0 Electrical characteristics

3.1 Interface signals

3.2 Interface

3.2.1 D-sub cable

3.2.2 DVI cable

3.2.3 OSD function control

3.3 Timing requirement

3.3.1 Mode storing capacity

3.3.2 Factory preset timings

3.3.3 Horizontal scanning

3.3.4 Vertical scanning

3.4 Power input connection

3.5 Power management

3.6 Display identification

3.6.1 Analog DDC

3.6.2 Digital DDC

HP L1940

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4.0 Visual characteristics

4.1 Test conditions

4.2 Resolution

4.3 Average surface brightness

4.4 Brightness uniformity

4.5 Check cross talk

4.6 White color adjustment

5.0 Mechanical characteristics

5.1 Controls

5.2 Unit dimension / weight

5.3 Tilt and swivel base

5.4 Transportation packages

5.4.1 Shipping dimension / weight

5.4.2 Block unit / palletization

6.0 Environmental characteristics

6.1 Susceptibility of display to external environment

6.1.1 Temperature ranges

6.1.2 Humidity

6.1.3 Altitude

6.2 Transportation tests

6.2.1 Drop

6.2.2 Vibration and shock

6.2.3 Operating condition

6.2.4 Non-operating

6.3 Display disturbances from external environment

7.0 Reliability

7.1 Mean time between failures

2005-06-03

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19 inch LCD Monitor

TYPE :EJ6B6CT/74 BRAND :HP L1940

2005-06-03

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HP L1940

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GENERAL PRODUCT SPECIFICATION

8.0 Quality assurance requirements

8.1 Acceptance test

9.0 Serviceability

10.0 Defect

10.1 Visual inspection

10.2 Mechanical light leakage

10.3 Allowable defect

10.4 Defect limits

10.5 Smudges, streaks and smears

10.6 Mura and splotches

10.7 Optical light leakage

10.8 LCD inspection

11.0 USB 2.0 HUB

2005-06-03

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19 inch LCD Monitor

TYPE : EJ6B6CT/74 BRAND : HP L1940

2005-06-03

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GENERAL PRODUCT SPECIFICATION(Continued)

HPL1940

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1.0 FOREWORD Thisspecification describes a 19" SXGA multi-scan color TFT LCD monitorwithmaxresolution up to 1280*1024 /76 Hz non-interlaced.

2.0 PRODUCT PROFILE

This display monitor unit isacolor display monitor enclosed in HP stylingcabinet,which has an integrated tilt and swiv

Branding Name HPL1940

Panel Technology

HP Jewel

Blue LED PowerButton

VESA Mounting

VESA cover

Internal Power Supply

BaseConcept

Tilt

Swivel

Pivot

HeightAdjustment

Detachable Base

Cable Management

Monitor Dimens ions

MonitorWeight

Packaged Dimensions

Packaged Weight

USBHUB (up/down)

USB Cableincluded

Internal Speakers

External Speak ers

Audio Bar Compatible

Speaker Power Output

Speaker Power Cabl eincluded

Detachable Video Cables

Audio Cableincluded

VGA signal input

DVI-D signal input

DVI-I signal input

VGA Cableincluded

DVI cableincluded (-Dor-I)

S-Video / Co mposite Video

# of Presets

el base.

MVAor IPS

double hinge

413x477x265 mm

8.4 Kg

524x239x513 mm

10 Kg

1/2

Y-via USB

2005-06-03

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19 inch LCD Monitor

TYPE :EJ6B6CT/74 BRAND :HPL1940

2005-06-03

8639 000 16572

590

HP L1940

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GENERAL PRODUCT SPECIFICATION

Horizontal Frequency Range

Vertical Frequency Range

Maximum Pixel Clo ck

Panel Color Depth (bits / color)

Pixel Pitch

Brightness (MIN)

Contras t Ratio (MIN)

Viewing Angles (MIN / TYP)

Response Time (r +f TYP)

OSD Controls Supported

Maximum Power Consumption

Sw Off / Sleep Pwr Consumption

TCO03

2.1 LCD

a.) Type NR. : LM190E05_SL01 (LPL)

Number of Pixels. : 1280 (H) x 1024 (V) Physical Size. : 396.0(H)*324.0(V)*20.0(D) mm Pixel Pitch. : 0.294 x 0.294 mm Color pixel arrangement. : RGB stripes arrangement Support Color. : 8 bit (16.7M Colors) Display Mode. : Transmissive Mode,Normally Black Backlight. : CCFL edge light system Active area. (WxH). : 376.32(H) x 301.06(V)mm (19" diagonal) Viewing Angle. : Vertical 178 degree, Horizontal 178 degree (CR=10) Contrast ratio. : 800:1

Luminance. : 250 cd/m

(Typ)

30 - 83 kHz

50 - 76 Hz

140 MHz

6+2

0.294 x 0.294 mm

200 nits

300

140 / 150

<25ms

hp 4 button

70W

1W / 2W

b.) Type NR. : M190E3-L01 (CMO)

2.2 Scanning frequencies

2.3 Video dot rate. : < 140 MHz

2.4 Power input. : 90-265 V AC, 50/60 ± 2Hz

2.5 Power consumption. : < 70 W maximum (with USB )

2.6 Dimensions. : 413(W) * 477(H) * 265(D) mm

Number of Pixels. : 1280 (H) x 1024 (V) Physical Size. : 404.22(H)*330.0(V)*20.0(D) mm Pixel Pitch. : 0.294 x 0.294 mm Color pixel arrangement. : RGB stripes arrangement Support Color. : 8 bit (16.7M Colors) Display Mode. : Transmissive Mode, Normally Black Backlight. : CCFL edge light system Active area. (WXH). : 376.32(H) x 301.056(V)mm (19" diagonal) Viewing Angle. : Vertical 170 degree, Horizontal 170 degree (CR=10) Contrast ratio. : 800:1 Luminance. : 250 cd/m

H-Frequency. : 30K - 83 K Hz V-Frequency. : 56 - 76 Hz

(Typ)

19 inch LCD Monitor

TYPE : EJ6B6CT/74

2005-06-03

Thomas Chen

BRAND : HP L1940

2005-06-03

8639 000 16572

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GENERAL PRODUCT SPECIFICATION(Continued)

2.7 Net Weight.:8.4kg

2.8 Functions:

(1)D-Subanalog R/G/B separate inputs, H/V syncseparated

(2)DVI-Ddigital Panel Link TMDS input

(3)USB2.0HUBwith one upstream port and twodownstream port

HPL1940

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2.9 Ambient temperature :5°

2.10 Regulatory compliance:

EN 60950 (IEC 950): CB SCHEME CERTIFICATION: UL APPROVAL: CSA APPROVAL: VDE / TUV APPROVAL: NORDIC SAFETY APPROVAL: MEXICAN SAFETY COMPLIANCE: POLAND COMPLIANCE (PCBC): RUSSIAN COMPLIANCE (GOST): SLOVENIAN APPROVAL (SIQ):

Safety

EMC

SLOVAK REPUBLIC APPROVAL (EVPU): CROATIA APPROV CHINA APPROVAL (CCC): SINGAPORE CONSUMER PROTECTION REGISTRATION SCHEMEOF SINGAPORE ( SISIR ): UKRAINE APPROVAL (UKRSERTCOMPUTER): SAUDI ARABIA APPROVAL (SASO): BELARUS APPROVAL (BNCI): LITHUANIA APPROVAL (INFOSTRUKTURA): ARGENTINA CERTIFICATION (IRAM):

FCC APPROVAL (USA): Part 15 class B C.I.S.P.R. REQUIREMENTS: C.I.S.P.R. Publication 22 Class B.

V.C.C.I. APPROVAL (Japan): Class B. MINISTRY OF COMMERCE REQUIREMENTS (NewZealand): Class B.

CANADIAN REQUIREMENTS: ICES-003 Class B AUSTRALIAN ACA APPROVAL: ACA AS/NZS 3548, Class B

AN BSMI APPROVAL: (CNS) 13438 (CISPR 22), Class B

TAIW CHINA CCC APPROVAL:

KOREA MIC APPROVAL:MIC Korea"EMCRegistration Regulation" Class B HARMONIC CURRENT EMISSIONS : IEC 61000-3-2 (EN 61000-3-3 ) VOLTAGE FLUCTUATIONS FLICKER REQUIREMENTS:

IEC 61000-3-3 (EN61000-3-2 ) EN 55022:1998 EN 55024 consisting of: IEC 61000-4-2 / -3 /-4/ -5 / -6 / -8 / -11

C -35°C

AL (KONKAR):

2005-06-03

Thomas Chen

ISO ERGONOMICS: ISO13406-2 (Class II isrequired forpixel defects )(TUV/ERG ) SWEDISH ERGONOMICS AND EMISSIONS:MPRII, TCO99, Nutek

Ergonomics

Agency

Compatibility PC2001, Windows 2000, Windows 98/Me,Windows XP, NSTL,USB-IF

GERMAN ERGONOMIC APPROVAL: EK1-ITB2000 (TUV/GS ) TCO 2003 APPROVAL: (in feature)

CCC (China), CE (Europe), CSA (Canada),

IEC950 CB Report, NOMNYCE (Mexico), PSB (Singapore), SEMKO (Nordic), IRMA(Argentina ) TUV (Germany), UL (USA) GOST (Russia), B-MARK (Poland), DEMKO (Nordic), FIMKO (No

SISIR, CPA (Singapore), EZU(Czech) ,MIC ( Korea)

rdic),

19 inch LCD Monitor

TYPE :EJ6B6CT/74 BRAND :HPL1940

2005-06-03

8639 000 16572

590

HP L1940

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3.0 Electrical characteristics

GENERAL PRODUCT SPECIFICATION

3.1 Interface signals The input signals can be applied in two different modes:

1). D-shell Analog

Input signal : Video, H-sync, V-sync,

Video : 0.7 V p-p, input impedance, 75 ohm

Sync. : Separate sync TTL level, input impedance 2k2 ohm termination

2). Intel DVI Digital

3.2 Interface

3.2.1 D-Sub Cable

Length : 1.8 M +/- 50 mm (fixed)

Connector type : D-sub male with DDC-2B pin assignments.

H-sync Positive/Negative

V-sync Positive/Negative

Input signal: Four channel TMDS signals. The digital interface shall be comprised of 2 electrical layer

component: a TMDS interface for low-voltage differential serial encoding of the digital

display data(Panel Link compliant) and a DDC2B electrical interface. Refer to the Digital

Display Working Group(DDWG) document, "Digital Visual Interface(DVI) Specification,

Revision 1.0" for the exact requirements.

Blue connector thumb-operated jack screws

Pin Assignment:

PIN No. SIGNAL

3.2.2 DVI Cable

The input signals are applied to the display through DVI-D cable.

1 Red video input

2 Green video input

3 Blue video input

4GND

5 Cable detect

6 Red video GND

7 Green video GND

8 Blue video GND

9 DDC +3.3V or +5V

10 GND

11 GND

12 Serial data line (SDA)

13 H-sync

14 V-sync

15 Data clock line (SCL)

Length : 1.8 M +/- 50 mm (fixed)

Connector type : DVI-D male with DDC-2B pin assignments

White connector thumb-operated jack screws

2005-06-03

Thomas Chen

19 inch LCD Monitor

TYPE : EJ6B6CT/74 BRAND : HP L1940

2005-06-03

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GENERAL PRODUCT SPECIFICATION(Continued)

Pin Assignment:

Pin No. Description

1 T.M.D.S. data22 T.M.D.S. data2+ 3 T.M.D.S. data2 shield 4 No Connect 5 No Connect 6 DDC clock 7 DDC data 8 No Connect

9 T.M.D.S. data110 T.M.D.S. data1+ 11 T.M.D.S. data1 shield 12 No Connect 13 No Connect 14 +5V Power 15 Ground (for +3.3V) - Cable detect 16 Hot plug detect 17 T.M.D.S. data018 T.M.D.S. data0+ 19 T.M.D.S. data0 shield 20 No Connect 21 No Connect 22 T.M.D.S clock shield 23 T.M.D.S.clock+ 24 T.M.D.S.clock-

HPL1940

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3.2.3 OSD Function Control Philips follow upHP's requirement to create OSD function and HP approvetheOSDfunction. Ifany deviation

between sheet 590 and customerspecification and really product,production should foll

OSD (On Screen Display) function

(1)Analog interfaceOSD:

a. Basic OSD Menu Levels

Menu LEVEL 1 Menu LEVEL 2

Brightness ADJ Scale

ContrastADJ Scale

Auto Adjustment

Advanced Menu

Exit

Menu LEVEL 1 Menu LEVEL 2

Brightness ADJ Scale

ContrastADJ Scale

Advanced Menu

Exit

19 inch LCD Monitor

TYPE :EJ6B6CT/74

BRAND :HPL1940

2005-06-03

Thomas Chen

2005-06-03

AnalogMode Menu

Digital Mode Menu

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ow upreally product.

HP L1940

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GENERAL PRODUCT SPECIFICATION

Brightness & Contrast : brightness and contrast adjustment

Auto Adjustment : Auto Adjustment Function

Advanced Menu : Enter Advanced Menu Levels

a. Advanced OSD Menu Levels

Analog Mode Menu

Menu Level 1 Menu Level 2 Menu Level 3

Brightness ADJ Scale

Contrast ADJ Scale

Image Control Auto Adjustment ("Adjusting" message )

Horizontal Position ADJ Scale

Vertical Position ADJ Scale

Clock ADJ Scale

Clock Phase ADJ Scale

Cancel

Save and Return

Color 9300 K

6500 K

Custom Color Custom Color ADJ

sRGB

Cancel

Save and Return

Language Deutsch

S-Chinese

English

Espanol

Francais

Italiano

Nederlands

Cancel

Save and Return

Management Power Saver On / Off Selection

Power On Recall On / Off Selection

Mode Display On / Off Selection

Sleep Timer Timer Set Menu

Defualt Video Input - Analog - VGA

- Digital - DVI

Basic Menu

Cancel

Save and Return

OSD Control Horizontal OSD Position ADJ Scale

Vertical OSD Position ADJ Scale

OSD Timeout ADJ Scale

Cancel

Save and Return

Information Current Settings

Recommended Settings

Serial Number

Total Hours

Backlight Hours

Exit

2005-06-03

Thomas Chen

19 inch LCD Monitor

TYPE : EJ6B6CT/74 BRAND : HP L1940

2005-06-03

8639 000 16572

590

GENERAL PRODUCT SPECIFICATION(Continued)

Factory Reset Yes

Exit

Digital Mode Menu

Menu Level1 Menu Level2 Menu Level3

Brightness ADJ Scale

ContrastADJ Scale

Color 9300 K

6500 K

Custom Color Custom Color ADJ

sRGB

Cancel

Save and Return

Language Deutsch

S-Chinese

English

Espanol

Francais

Italiano

Nederlands

Cancel

Save and Return

Management Power Saver On / Off Selection

Power On Recall On / Off Selection

Mode Display On / Off Selection

Sleep Timer Timer Set Menu

Default Video Input - Analog-VGA

- Digital - DVI

BasicMenu

Cancel

Save and Return

OSD ControlHorizontal OSD Position ADJ Scale

Vertical OSD Position ADJ Scale

OSD Timeout ADJ Scale

Cancel

Save and Return

Information Current Settings

Recommended Settings

Serial Number

Total Hours

Backlight Hours

Exit

Factory Reset Yes

Exit

HPL1940

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2005-06-03

Thomas Chen

19 inch LCD Monitor

TYPE :EJ6B6CT/74 BRAND :HPL1940

2005-06-03

8639 000 16572

590

HP L1940

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GENERAL PRODUCT SPECIFICATION

C. OSD Service Mode Menu

Analog Mode Menu

Menu Level 1 Menu Level 2 Menu Level 3

Brightness ADJ Scale

Contrast ADJ Scale

Image Control Auto Adjustment ("Adjusting" message )

Horizontal Position ADJ Scale

Vertical Position ADJ Scale

Clock ADJ Scale

Clock Phase ADJ Scale

Cancel

Save and Return

Color 9300 K

6500 K

Custom Color Custom Color ADJ

sRGB

Cancel

Save and Return

Service Display Hours

Reset Total Hours Confirm Reset

Reset Backlight Hours Confirm Reset

Copy All Settings Confirm Reset

Recall All Settings Confirm Reset

Display White Block

Unlock EDID Write

Cancel

Save and Return

Management Power Saver On / Off Selection

Power On Recall On / Off Selection

Mode Display On / Off Selection

Sleep Timer Timer Set Menu

Default Video Input - Analog - VGA

- Digital - DVI

Basic Menu

Cancel

Save and Return

OSD Control Horizontal OSD Position ADJ Scale

Vertical OSD Position ADJ Scale

OSD Timeout ADJ Scale

Cancel

Save and Return

Information Current Settings

Recommended Settings

Serial Number

Total Hours

Backlight Hours

Exit

2005-06-03

Thomas Chen

19 inch LCD Monitor

TYPE : EJ6B6CT/74 BRAND : HP L1940

2005-06-03

8639 000 16572

590

GENERAL PRODUCT SPECIFICATION(Continued)

Factory Reset Yes

Exit

Digital Mode Menu

Menu Level1 Menu Level2 Menu Level3

Brightness ADJ Scale

ContrastADJ Scale

Color 9300 K

6500 K

Custom Color Custom Color ADJ

SRGB

Cancel

Save and Return

ServiceDisplay Hours

Reset Total Hours Confirm Reset

Reset Backlight Hours Confirm Reset

Copy All Settings Confirm Reset

Recall All Settings Confirm Reset

Display White Block

Unlock EDID Write

Cancel

Save and Return

Management Power Saver On / Off Selection

Power On Recall On / Off Selection

Mode Display On / Off Selection

Sleep Timer Timer Set Menu

Default Video Input - Analog-VGA

- Digital - DVI

BasicMenu

Cancel

Save and Return

OSD ControlHorizontal OSD Position ADJ Scale

Vertical OSD Position ADJ Scale

OSD Timeout ADJ Scale

Cancel

Save and Return

Information Current Settings

Recommended Settings

Serial Number

Total Hours

Backlight Hours

Exit

Factory Reset Yes

Exit

HPL1940

Go to cover page

2005-06-03

Thomas Chen

19 inch LCD Monitor

TYPE :EJ6B6CT/74 BRAND :HPL1940

2005-06-03

8639 000 16572

590

HP L1940

Go to cover page

3.3 Timing requirement

GENERAL PRODUCT SPECIFICATION

3.3.1 Mode storing capacity

3.3.2 Factory preset timings

(1) Factory preset modes : 15

(2) User modes : 10

The factory settings of size and centering are according to the reference timing charts(See Fig-47, Fig-58)

MODE NO. 1 2 3 4

RESOLUTION 640 x 480 640 x 480 640 x 480 720 x 400

Dot clock(MHz) 25.175 31.500 31.501 28.321

f h 31.5kHz 37.861kHz 37.5kHz 31.468kHz A ( us ) 31.778(800 dots) 26.413(832 dots) 26.667 (840 dots) 31.78(900dots) B ( us ) 3.813( 96 dots) 1.270(40 dots) 2.032 ( 54 dots) 3.813(108dots) C ( us ) 1.907( 48 dots) 3.810(120 dots) 3.81 ( 120 dots) 1.907(54dots) D ( us ) 25.422( 640 dots) 20.317(640 dots) 20.317 (640 dots) 25.42(720dots) E ( us ) 0.636( 16 dots) 1.016(32 dots) 0.508 ( 26 dots) 0.636(18dots)

f v 60Hz 72.809Hz 75Hz 70Hz(70.085)

O (ms ) 16.683 (525 lines) 13.735(520 lines) 13.333 (500 lines ) 14.27(449 lines)

P ( ms ) 0.064 ( 2 lines) 0.079(3 lines) 0.08 ( 3 lines ) 0.064(2 lines)

Q (ms ) 1.049 ( 33 lines) 0.528(20 lines) 0.427 ( 16 lines ) 1.112(34 lines) R ( ms ) 15.253 (480 lines) 12.678(480 lines) 12.8 (480 lines ) 12.71(400 lines) S ( ms ) 0.317 ( 10 line ) 0.45(17 lines) 0.026 ( 1 lines) 0.381(13 lines)

SYNC. H/V - / - -/- - / - -/+ POLARITY

SEP . SYNC Y Y Y Y

MODE NO. 5 6 7 8

RESOLUTION 800 x 600 800 x 600 800 x 600 832 x 624

Dot clock(MHz) 40 50 49.498 57.28

f h 37.9kHz 48.077kHz 46.9kHz 49.7kHz A ( us ) 26.4 (1056 dots) 20.80 (1040dots) 21.333 (1056 dots) 20.11(1152 dots) B ( us ) 3.2 ( 128 dots) 2.400 ( 120 dots) 1.616 ( 80 dots) 1.117(64 dots) C ( us ) 2.2 ( 88 dots) 1.280 ( 64 dots) 3.232 ( 160 dots) 3.91(224 dots) D ( us ) 20 ( 800 dots) 16.00 ( 800 dots) 16.162 ( 800 dots) 14.52(832 dots) E ( us ) 1 ( 40 dots) 1.120 ( 56 dots) 0.323 ( 16 dots) 0.563(32 dots)

f v 60Hz 72Hz ( 72.188) 75Hz 75Hz O (ms ) 16.579 (628 lines) 13.85 (666 lines) 13.333 (625 lines) 13.41(667 lines)

P ( ms ) 0.106 ( 4 lines) 0.125 ( 6 lines) 0.064 ( 3 lines) 0.06(3 lines)

Q (ms ) 0.607 ( 23 lines) 0.478 ( 23 lines) 0.448 ( 21 lines) 0.784(39 lines)

R ( ms ) 15.84 (600lines) 12.48 (600 lines) 12.8 (600 lines) 12.55(624 lines)

S ( ms ) 0.026 ( 1 line ) 0.770 ( 37 line ) 0.021 ( 1 line ) 0.016(1 lines) SYNC. H/V + / + + / + + / + +/+ POLARITY

SEP . SYNC Y Y Y Y

2005-06-03

Thomas Chen

19 inch LCD Monitor

TYPE : EJ6B6CT/74 BRAND : HP L1940

2005-06-03

8639 000 16572

590

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