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L1940

AOC L1940 Service Manual

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19" LCD Colour Monitor
Service
SH4 HP L1940
Service
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
GB
3138 106 10487
2
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
26
8639 000 16572
590
1
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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3
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
Thomas Chen
19 inch LCD Monitor
TYPE :EJ6B6CT/74 BRAND :HP L1940
2005-06-03
26
8639 000 16572
590
2
4
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
Thomas Chen
19 inch LCD Monitor
TYPE : EJ6B6CT/74 BRAND : HP L1940
2005-06-03
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8639 000 16572
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GENERAL PRODUCT SPECIFICATION(Continued)
HPL1940
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5
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
Y
N
Y
N
Y
double hinge
Y
Y
Y
Y
Y
Y
413x477x265 mm
8.4 Kg
524x239x513 mm
10 Kg
1/2
Y
N
N
Y
Y-via USB
N
Y
N
Y
Y
N
Y
N
N
15
2005-06-03
Thomas Chen
19 inch LCD Monitor
TYPE :EJ6B6CT/74 BRAND :HPL1940
2005-06-03
26
8639 000 16572
590
4
6
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
2
(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
Y
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
2
(Typ)
19 inch LCD Monitor
TYPE : EJ6B6CT/74
2005-06-03
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BRAND : HP L1940
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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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7
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
26
2005-06-03
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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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9
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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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
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8639 000 16572
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GENERAL PRODUCT SPECIFICATION(Continued)
Factory Reset Yes
No
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
No
Exit
HPL1940
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11
2005-06-03
Thomas Chen
19 inch LCD Monitor
TYPE :EJ6B6CT/74 BRAND :HPL1940
2005-06-03
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10
12
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
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8639 000 16572
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GENERAL PRODUCT SPECIFICATION(Continued)
Factory Reset Yes
No
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
No
Exit
HPL1940
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13
2005-06-03
Thomas Chen
19 inch LCD Monitor
TYPE :EJ6B6CT/74 BRAND :HPL1940
2005-06-03
26
8639 000 16572
590
12
14
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
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GENERAL PRODUCT SPECIFICATION(Continued)
HPL1940
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MODE NO. 9 10 11 12
RESOLUTION 1024 x 768 1024 x 768 1024 x 768 1152 x 870
Dot clock(MHz) 65 75 78.75 100
f h 48.363kHz 56.5kHz 60kHz 68.7kHz A(us ) 20.677(1344 dots) 17.707(1328 dots) 16.66 (1312dots) 14.56 (1456 dots) B (us ) 2.092(136 dots) 1.813(136 dots) 1.219 ( 96 dots) 1.28 ( 128 dots)
C(us ) 2.462(160 dots) 1.920(144 dots) 2.235 ( 176 dots) 1.44( 144 dots) D(us ) 15.754(1024 dots) 13.653(1024 dots) 13.003 ( 1024 dots) 11.52 ( 1152 dots) E(us ) 0.369(24 dots) 0.321 (24 dots) 0.203 ( 16 dots) 0.32 ( 32 dots)
f v 60.004Hz 70.004Hz 75Hz ( 75.000) 75Hz O(ms ) 16.666(806 lines) 14.272(806 lines) 13.328 (800 lines) 13.322 (915 lines)
P(ms ) 0.124(6lines) 0.106(6lines) 0.05( 3lines) 0.044 ( 3lines)
Q (ms ) 0.600(29 lines) 0.514(29 lines) 0.446 ( 28 lines) 0.568( 39 lines)
R(ms ) 15.880(768 lines) 13.599(768 lines) 12.80 (768 lines) 12.678 (870 lines)
S(ms ) 0.062(3lines) 0.053(3lines) 0.017 ( 1line ) 0.043 ( 4line ) SYNC. H/V - / - -/- + / + - / - POLARITY
SEP . SYNC YYYY
MODE NO.13 14 15
RESOLUTION 1152 x 900 1280 x 1024 1280 x 1024
15
Dot clock(MHz) 105.56 108 117
f h 71.713kHz 64kHz 71.7kHz A(us ) 13.945 (1472dots) 15.63 (1688 dots) 13.949 (1632 dots) B (us ) 0.909 ( 96 dots) 1.037 ( 112 dots) 0.957 (112 dots)
C(us ) 1.970 ( 208 dots) 2.296 ( 248 dots) 1.915 (224 dots) D(us ) 10.913 ( 1152 dots) 11.852 ( 1280 dots) 10.94 (1280 dots) E(us ) 0.152 ( 16 dots) 0.445 ( 48 dots) 0.137 (16 dots)
f v 76Hz 60Hz 75Hz
O(ms ) 13.15 (943 lines) 16.661 (1066 lines) 14.883 (1067lines)
P(ms ) 0.112 ( 8lines) 0.047 ( 3lines) 0.112 ( 8lines)
Q (ms ) 0.46 ( 33 lines) 0.594 ( 38 lines) 0.46 ( 33 lines)
R(ms ) 12.55 (900 lines) 16.005 (1024 lines) 14.283 (1024 lines)
S(ms ) 0.028 ( 2lines) 0.015 ( 1line) 0.028 (2lines ) SYNC.H/V -/- +/+ +/+ POLARITY
SEP . SYNC YYY
A :H-Total O :V-Total
B:H-Syncwidth P :V-Syncwidth
C :H-Backporch Q : V- Back porch
D :H-Video width R :V-Video width
E : H- Front porch S : V- Front porch
3.3.3 Horizontal scanning
3.3.4 Vertical scanning
2005-06-03
Thomas Chen
Syncpolarity:Positiveor Negative Scanningfrequency : 30 - 83 KHz
Syncpolarity:Positiveor Negative Scanningfrequency : 56 - 76 Hz
19 inch LCD Monitor
TYPE :EJ6B6CT/74
BRAND :HPL1940
2005-06-03
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8639 000 16572
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HP L1940
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3.4 Power input connection
3.5 Power management
3.6 Display identification
GENERAL PRODUCT SPECIFICATION
Power cord length : 1.8 M Power cord type : 3 leads power cord with protective earth plug.
STATUS H-sync V-sync Video Power LED indicator
On On On Active < 70W Green LCD (*Note1)
Stand-by Off On Blanked < 2W
Suspend On Off Blanked < 2W
Off Off Off Blanked < 2W Amber LCD (*Note2)
DC Switch off N/A N/A N / A < 1W Off (*Note 2)
Note 1: Included two active external USB devices Note 2: Measurement is required to connect PC via USB 2.0 upstream cable and be without any external USB
devices. The operating system is required to be Windows XP , and USB interface of PC shall conform to USB 2.0 compliance.
Amber LCD (*Note2)
Amber LCD (*Note2)
3.6.1 Analog DDC In accordance with VESA Display Channel Standard V1.0 and having DDC-2B capability.
3.6.2 Digital DDC
In accordance with DVI requirement (DDWG digital Visual Interface revision 1.0) use DDC-2B and EDID 3.0 structure 2.0
4.0 Visual characteristics
4.1 Test conditions
Unless otherwise specified, this specification is defined under the following conditions.
4.2 Resolution
AC voltage: 120 VAC 60 Hz and 230 VAC 50 Hz
Video Signal: Native Resolution(1280x1024) @ 60 Hz, 0.7 V p-p
Warm up: More than 30 minutes with full white picture Temperature: 20°Cto25°C
Contrast: 100% setting (gain = 1)
Brightness:100% setting
Color Temperature: 6500K
Ambient Light: No ambient light (<10 lux)
Meter: Microvision ss230 (or equivalent)
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15
GENERAL PRODUCT SPECIFICATION(Continued)
Factory preset modes (15 modes)
HPL1940
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17
# Resolution H-Frequency
(Hz)
1 640X480 31.469K 25.175 59.940 VGA
2 640X480 37.861K 31.5 72.809 VESA
3 640X480 37.5K 31.501 75 VESA
4 720X400 31.469K 28.322 70.087 VGA
5 800X600 37.879K 40 60.317 VESA
6 800X600 48.077K 50 72.188Hz VESA
7 800X600 46.875K 49.498 75Hz VESA
8 832X624 49.726K 57.284 74.551Hz MAC
9 1024X768 48.363K 65 60.004Hz VESA
10 1024X768 56.476K 75 70.069Hz VESA
Pixelrate
(MHz)
V-Frequency
(Hz)
Comment
11 1024X768 60.023K 78.75 75.029Hz VESA
12 1152X870 68.68K 100 75.06Hz MAC
13 1152X900 71.71K 108 76.05Hz SUN
14 1280X1024 63.98K 108 60.02Hz VESA
15 1280X1024 79.97K 135 75.02Hz VESA
Note :1. Screen displays perfect picture at 15 factory preset modes.
2. Screen displays visible picture when input modesareother then 15 preset modes
4.3 AverageSurface Brightness
Color Temperature Brightness control Contrast control Light output unit: nits
Use OSD to set 6500K orsRGBcolor temperaturein1280x1024/60Hz
ode,measured by at screen center (position 5) withwhite pattern as Fig-1
m
6500K 100% 100% >= 200 SRGB NA NA >=140
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4.4 Brightness uniformity
GENERAL PRODUCT SPECIFICATION
In 1280x1024/60Hz mode, set contrast at 100% and turn the brightness to get average above 200 nits with white pattern.
The Brightness Variation shall be measured at the 9 center points by HP spec(at 10%, 50%, and 90%) called out in the Measurement Locations Figure 2 below. If Light Leakage is visible, the Maximum Dark Luminance shall be measured at all 11 points (9-points plus 4-points at the center of each edge).
If measuring data conflicted with above HP specification, it shall follow panel itself spec for brightness uniformity.
For LPL Panel, it shall follow the formula as below
Apply the pattern as fig 3. It should comply with the following formula:
For CMO Panel
Apply the pattern as fig 4. It should comply with the following formula:
4.5 Check Cross talk
Cross talk of one area of the screen by another shall be measured by comparing the brightness (YA)ofa10mm± 1mm diameter area, with all display pixels set to the 32nd (of 0 to 63) gray level, to the brightness (YB) of that same area when any adjacent area is driven dark as Fig 6. The luminance ratio shall not exceed 1:2.0
é
æ ç
ê
è
ë
Minimum luminance of nine points (brightness)
Maximum luminance of nine points (brightness)
Maximum luminance of nine points (brightness)
Minimum luminance of nine points (brightness)
LuminanceMinimum
LuminanceMaximum
ù
ö ÷
ú
ø
û
%100x
>= 70%
X 100% >= 70%
<= 1.74
4.6 White color adjustment
There are three factory preset white color 9300K, 6500K and sRGB.
Apply full white pattern, with brightness in 90 % position and the contrast control at 80 % position. The 1931 CIE Chromaticity (color triangle) diagram (x,y) coordinate for the screen center should be:
9300K CIE coordinates X = 0.283 ± 0.020
6500K CIE coordinates X = 0.313 ± 0.020
sRGB CIE coordinates X = 0.313 ± 0.020
5.0 Mechanical characteristics
5.1 Controls
19 inch LCD Monitor
TYPE : EJ6B6CT/74 BRAND : HP L1940
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Cross Modulation Ratio =
Y = 0.297 ± 0.020
Y = 0.329 ± 0.020
Y = 0.329 ± 0.020
26
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Y-Y
BA
Y
B
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<=2.0 (Max)
17
GENERAL PRODUCT SPECIFICATION(Continued)
HPL1940
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19
Front side:
Rear side:
5.2 Unit dimension /Weight
Set dimension (incl. pedestal): 413(W) * 477(H) * 265(D) mm
Net weight.:8.4kg
5.3 Tilt and swivel base
Basic base:
tilt angle :-5° to +35 ° (op swivelrotation : ± 90°
5.4 Transportation packages
5.4.1 Shipping dimension/Weight
Carton dimension. : 524(W) *239(D) * 513(H) mm Gross weight.:10Kg
DC powerswitch OSD Menu key Minus"-"(hot-keyforselection of theDVIinput) Plus"+" ( hot-keyforselection of the VGA) Auto Key
D-SUBsignal connector DVI signal connector
ercord socket
Pow Upstream Port Twodownstream ports
eration )
5.4.2 Block unit / Palletization
6.0 Environmental characteristics
6.1 Susceptibility of display to external environment
6.1.1 TemperatureRanges
6.1.3 Altitude
6.2 Transportation tests
It usetwo kind of pallets, which mixed into container (
Atype pallet:
layers / block
41040 blocks/container 20 feet 40 feet
920
Operating Temperature (Independent ofaltitude) :5° Cto35° C.
Non-Operating Temperature (Independent ofaltitude) :-20
6.1.2 Humidity
Operating (non-condensing) : 20% to 80% Non-Operating (38.7° C maximumwet bulb temperature) :5%to 90%
Operating0to 12,000 feet [3,658 m]. Equivalent to 14.7 to 10.1 psia.
Non-Operating0to 40,000 feet [12,192 m]. Equivalent to 14.7 to
sets/layer sets/block unit
please refer to sheet 560)
° Cto60° C.
4.4 psia
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2005-06-03
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6.2.1 Drop
6.2.2 Vibration and Shock
GENERAL PRODUCT SPECIFICATION
To measure the G-values, the instrumentation shall be placed on the center of the vesa plate of the Base.
Standard HP Spc.109291
Height 76 cm
2 corner
Drop Sequence 2 edge
Test 6 face
electrical function ok
Test mechanical function ok
Result no serious damage on set appearance
Product shall meet the operating, non-operating and pack test requirements of HP's specification for Monitor Environmental and Reliability Testing (rev 6.0 of Oct. 21, 2002). Drop heights shall be determined by Compaq specification 109291.
All testing shall be done in each of three mutually perpendicular axes, referenced to the position of the system as it is in front of the user (i.e., front-to-back, side-to-side, and top-to-bottom).
6.2.3 Operating Conditions
The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality during exposure to the operational conditions.
Sinusoidal Vibration: 0.25 g zero-to-peak, 10 to 500 Hz, 0.25 octave / minute sweep rate. One sweep, 10 to 500 to 10 Hz, along each axis.
Random Vibration: 0.002 G2/Hz, 10 to 500 Hz, nominal 1.0 Grms in each of the three axes. The test duration shall be sufficient so that the monitor's performance can be completely evaluated.
Half Sine Wave Shock: 30 G peak acceleration for 2 milliseconds duration in each of the three axes. The number of shock inputs in each direction shall be sufficient so the monitor's performance can be evaluated.
6.2.4 Non-Operating
The unit should suffer minimal visible cosmetic damage or damage that presents a safety hazard, or impairs the setup and operation of the system after testing.
Sinusoidal Vibration: 0.75 G zero-to-peak, 10 to 500 Hz, 0.5 octave / minute sweep rate. This requires one sweep, 10 to 500 to 10 Hz, along each of the three axes.
Random Vibration: 0.008 G2/Hz, 10 to 500 Hz, nominal 2 GRMS. The test shall be for one hour for each of the three
axes.
Half Sine Wave Shock: 50 G peak, half sine pulse, 2 ms pulse duration. Testing shall consist of one shock in each direction in each axis, for a total of 6 shock inputs.
Square Wave Shock: 35 G peak acceleration, 180 inches / second velocity change. There shall be one shock in each direction in each axis, for a total of 6 shock inputs.
6.3 Display disturbances from external environment According to IEC 801-2 for ESD disturbances
7.0 Reliability
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GENERAL PRODUCT SPECIFICATION(Continued)
HPL1940
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21
7.1. MeanTime Between Failures
8.0 Qualityassurance requirements
8.1 Accept
9.0 Serviceability
10.0 Defects
10.1 Visual Inspection
SystemMTBF(Excluding theLCDpaneland CCFL): 75,000 hrs
CCFL MTBF: The lamps shall have acontinuous operatinglifeofat least 50,000 hours at 25° C. Theoperating lifeis defined as having ended when theillumina the minimum 50% luminance at 50,000 hours, the backlightsmust also meet the requirement ofminimum 65%
at 26,000 hours.
ancetest
According to MIL-STD-105D Control II level
AQL:0.65(major)
2.50 (minor)
(Please also refer to annual quality agreement)
Customeracceptance criteria: UAW0377/00
erviceability of thismonitorshould fulfill the requirements, which are prescribed in UAW-0346 and must be
The s
checked with the check listUAT-0361.
Both ofHP & Philips agree to follow uppane
deviation between Sheet590 and customerspecification,should follow uppanelspecification.
TheLCDpanelshallbeinspec
variation and overall appearance must not be perceived as poorqualitybyHewlett-Packard. Areas and/or parameters considered questionable shall be
tion oflight has reached 50% of theinitial value. In addition to
lspecification as inspection condition in business kick off stage, ifany
ted withallpixels set to white, black, red,green,and blue. The colorvariation,brightness
subjectedtodetailed measurements.
10.2 Mechanical LightLeakage
Except for the activedisplay area, there shall benolightemission visible fromanyangle fromany other partof the display. For this test no areas ofvisibleillumination/light leakage(excludingpixel defectsspecified separately).
10.3 AllowableDef
No cosmetic defectsare allowed exceptthose specified below. The conditions ofvisual inspectionsare as follows:
Viewing distanceis to be approximately 35 cm.
Ambient illumination is to be 300
Viewingangle range shall be 70-110 degreeshorizontal and 80-100 degreesvertical.
Defects not apparent within one minute shall beignored.
10.4 DefectLimits
Table 3lists the countable and rejectable sizesfo size are allowed;however, thetotal number ofcountabledefects shall not exceed the maximum number ofallcountable
defects noted in thetable. Any de rejecting thedisplay. The symbols used are: D = Diameter, L = Length (longestdimension),W=Width (perpendicu to the length), N = Number or Count, Spot = Contamination, S = Separation from EdgetoEdge, Dot = Subpixelstuck on/off (electrical).
ects
, the ambient illumination must be less than 10 lux. Withadark (no video) image, there shall be
to 500 lux.
r each typeofcommonly found defects. Defectswithin the countable
fect with dimensionsgreater thanthe countabledefect shall be sufficient cause for
lar
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GENERAL PRODUCT SPECIFICATION
OPTO-MECHANICAL DEFECTS
VISUAL DEFECTS: (See No tes) COUNT REJECT
Dark/White Spot
Bright Line (Light Lint)
Dark Line (Dark Lint/Hair)
Polarizer Scratch
Polarizer Dents
Polarizer Bubble
Rubbing Defects Not Allowed
Newton Rings Not Allowed
Mottling Not Allowed
Bright Sub-Pixel (Electrical) N = 3
Dark Sub-Pixel (Electrical)
Bright and Dark Sub-Pixel (Total)
Min imu m Dis tanc e B etween Elec tri cal Def ects
Bright Dots
Two Adjacent Dots (Bright/Bright,
Bright/Dark, Dark/Dark, Any Plane)
Bright and/or Dark Dots: Three
Adjacent (Any Plane)
Dark Dots
Dim Lines Not Allowed
Cross Line(s) On/Off Not Allowed
Horizontal Line(s) On/Off Not Allowed
Vertical Lines(s) On/Off Not Allowed
Minimum Distance Between ANY
Allowable Defects
Maximum No. of Allowable Defects
0.03 < W £ 0.2, 0.3 < L £ 3.0, N £ 4
0.01 < W £ 0.07, 1.0 < L £ 10.0, N £ 3
ELECTRICAL DEFECTS: (See Notes)
(MVA/PVA/IPS panels normally dark)
TABLE 3
0.25 < D £ 0.60, N £ 3
0.03 < W £ 0. 2, L £ 3.0, N £ 4
0.15 < D £ 0.6, N £ 3
0.254 < D £ 0.6, N £ 3
N £ 5
N £ 5
S ³ 15
N £ 1 pair
Not Allowed Not Allowed
S ³ 15
S ³ 15
N £ 5 (all types)
D > 0.60 or N > 3
W > 0.2 or L > 3.0 or N > 4
W > 0.2 or L > 3.0 or N > 4
W > 0.07 or L > 10.0 or N > 3
D>0.6orN>3
D>0.6orN>3
N>3
N>5
N>5
S<15
N > 1 pair
S<15
S<15
N>5
Notes :
Any bright or dark dots visible using the evaluation method described in section 6.6.4 are to be considered defects. Unless otherwise specified, optical defects whose length L is greater than four times the width W, that is L > 4W, shall be considered as linear defects. Defects whose length is less than four times the width (L < 4W) shall be considered as spot defects. All gray shade testing will be based on Shades 1, 12, and 16 for Black/White/Red/Green
/Blue (from a base of 16 gray shades, where 16 is maximum bright and 1 is minimum bright). A high level dot cannot
be adjacent to any other dot.
10.5 Smudges, Streaks and Smears
When viewing the panel oriented so as to maximize reflected light, there shall be no visible smudging, streaking, smearing or other non-uniformity from contaminants, fingerprints, or defects in any of the visible surfaces.
This is independent of whether the unit is operating or off.
19 inch LCD Monitor
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GENERAL PRODUCT SPECIFICATION(Continued)
10.6 Mura and Splotches
When viewed from directly in front of the monitor, thedisplay shall not exhibit any non-uniformity's in color orluminance that are readily visible at 25% gray scaleorbrighter. Mura patternsmaybe v
10.7 Optical LightLeakage
There shall not be visible light from the back-lighting systemaround theedges of the screen as seen fromadistance of20inchesfrom the screen witha
monitorwith each supported LCD module showing the maximumamount oflight leakage. This sample shall be considered the "worst case oflight leakage.
10.8 LCD Inspection
Put LCD panel on inspection table and illuminate the panelwithadaylight fluorescent lamp located abovethe panel surfac
e such thattheilluminance attheLCDpanel isbetween 1000 luxand 1500 lux. Defect limitsare given in
Table 3for the combined defectsfrom this inspection and theelectrical and mechanical defec
noverhead light level of10lux. The manufacturershallfurnish samples of the
"light leakage sample and all panels used forproduction shall have alesseramount
Table 4
DefectInspection
isible when viewed from off-axis.
HPL1940
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tsfrom Table 4.
23
Allowabledistance between spots of two sizes is the minimumseparation numberfor the smallerspot. Therefore, if there aretwo spots, 1.30 mm and 0.4 mm in diameter, theymust be at least 15 mm apart
11.0 USB2.0HUB
TheUSBhub shall be powered by theinternal supply of the monitor. The communication protocolshallcomply with USBspecification revision 2.0. A singleupstream connectorshallserve as connection to theCPUor other USBhu
Each of the 2 downstream ports shall include current-limited power of5VDC at 500mA for use by an attached device.
USB Signals USBsignals shall meet thetimingand signal levelstandardsforhigh speed dev specification revision 2.0. Each downstream port shall provide 5VDC atup to 500mA for use by an attached USB device.
Communication Protocol USBconnections shall beestablish theUSBspecification forhigh speed devices.
AverageDiameter
smaller of (L+W)/2 or L/20+2W
<0.1mm Non countableN/a
0.1mm-0.3mm 10 15mm
0.31 mm - 0.5 mm 10 15 mm
0.51 mm - 1.25 mm 5 15 mm
1.26 mm - 2.5 mm 3 25.4 mm
2.51 mm - 3.75 mm 3 25.4 mm
Greater than 3.75 mm none Not applicable
ed via4-conductor USBcables. USB cablesmust be shielded in accordance with
AcceptableNumberMinimumseparation
icesset forthbyindustry standardUSB
.
b.
2005-06-03
Thomas Chen
Protocol Parameters TheUSBhuband associated ports shall be compliant with theUSBspe device speed shall be 480 Mbit/sec. The maximumpollingrate shall beevery 256 ms.
cification forhigh speed devices. TheUSB
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GENERAL PRODUCT SPECIFICATION
Fig 1: Average Surface Brightness ,Position 5 = Screen center point
L/2
L
L/10
W/10
1
456
2
3
W
W/2
7
Fig-2 HP Uniformity Test Pattern
8
9
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23
GENERAL PRODUCT SPECIFICATION(Continued)
Fig-3 LPL Uniformity TestPattern
H
H/2
HPL1940
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25
V
V/1
0
V/
2
2
5
7
H : 376.320 mm
V : 301.056 mm
@H,V:ActiveArea
Fig-4 CMOUniformity TestPattern
3
1
8
9
Active
Area
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GENERAL PRODUCT SPECIFICATION
Fig-6 HP Cross Talk Test Pattern
VIEW AREA
VIEW AREA
192
A
Y
(896,384)
Darkest gray pattern
576
Where: In addition:
YA= Initial luminance of measured area (cd/m2)
YB= Subsequent luminance of measured area
(cd/m2)
The location measured will be exactly the same in both patterns.
Fig-7 Timing Chart-1
SEPARAT E SYNC.
C
HORIZONTAL
Viewing Angle: qx=90°, qy=90°
Ambient Temperature: 25 ±2°C
Measurement Area Size: 2° fieldofviewat40 cm
VIDEO
D
E
768,192
768,576
B
(896,384)
Y
2005-06-03
Thomas Chen
VERTICAL
COMPOSITE SYNC.
HORIZONTAL
FIG -4 TIM IN G C H A RT -1
19 inch LCD Monitor
TYPE : EJ6B6CT/74 BRAND : HP L1940
2005-06-03
B
Q
P
C
B
A
VIDEO
R
O
VIDEO
D
A
S
E
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590
25
GENERAL PRODUCT SPECIFICATION(Continued)
Fig-8 Timing Chart-2
VIDEO
QR S
VERTICAL
P
O
HPL1940
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27
COMPOSITE SYNC.
( SYNC. ON GREEN )
HORIZONTAL
B
VERTICAL
B
&VIDEO
C
S
D
A
P
Q
E
R
O
2005-06-03
Thomas Chen
FIG-5 TIMING CHART -2
19 inch LCD Monitor
TYPE :EJ6B6CT/74
BRAND :HPL1940
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HP L1940
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Scaler Diagram-1Schematic
Scaler Diagram-2Schematic
HP L1940
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29
30
HP L1940
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Scaler Diagram-3Schematic
Scaler Diagram-4Schematic
HP L1940
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31
32
HP L1940
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Scaler Diagram-5Schematic
Scaler Board C.B.A.-1
HP L1940
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33
34
HP L1940
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Scaler Board C.B.A.-2
Power Diagram-1Schematic
HP L1940
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35
36
HP L1940
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Power Diagram-2Schematic
Power Board C.B.A.-1
HP L1940
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37
38
HP L1940
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Power Board C.B.A.-2
Control DiagramSchematic
HP L1940
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39
40
HP L1940
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Control Board C.B.A.-1
Control Board C.B.A.-2
HP L1940
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41
42
HP L1940
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Spare Parts List
Model: EJ6B6CT/74(CMO) 12NC: 8639 000 16572
Mechanical Parts
30 313815758111 FRONT BEZEL ASSY
31 313815414111 BEZEL
32 313815414131 CONTROL BUTTON
33 313815414141 LENS-POWER
34 313815161731 HP LOGO 7121 - 8115
41 313815414121 BACK COVER
50 313815758131 STAND-HPL1940
91 313815758121 MAIN SHIELD ASSY
92 313815136221 AC BRACKET
93 313815564902 FRONT COVER
101 313810440571 HOUSING COVER
103 313815414201 SCREW COVER
340 313815136151 MAIN SHIELD
341 313815321111 INSULATION PLATE
1160 313815861581 MAIN FRAME+WIRE ASSY - CMO
Packing Parts
450 313815638761 CARTON
451 313815638461 CUSHION-R
452 313815638471 CUSHION-L
453 313815639092 PROTECTIVE BAG
456 313815639062 BASE P.E. BAG
Accessory
139 313815759631 DFU ASSY
601 313811707601 HP CD-ROM INF.
1157 313812874901 MAINSCORD
1158 313819871431 CORD SUB-D 15/1M8/15 D-SUB BK
1159 313819872531 CORD USB A/1M8/USB B BK
miscellanea
126 313815567911 RATING LABEL
291 313815567641 LABEL-CPU
295 313815567651 LABEL-EEPROM-CMO
615 313811708751 HEX CODE OF F/W(NO MATL REQ)
1170 313815862751 CABLE ASSY
1201 242203300521 SOC DVI H 24P F 1.91DVI-D
1203 242202518053 SOC SUBD H 15P F BU 1216
1301 243803100435 SOC IC V 8P F 2.54 DIL
1303 243854300079 RES XTL SM 12MHZ 32P SMD-49
1304 313816876941 CON BM V 4P M 2.5 A2501WV2
1305 243803100116 CON V 3P M 2.50 63172
1411 242202519002 CON H 30P F 1.00 SM FFC 0.3
1502 242202518826 CON V 14P M 2.00 63394
1503 242202518819 CON V 7P M 2.00 63387
1601 243854300085 RES XTL SM 24MHZ 20P SMD-49
1602 242202518876 SOC USB H 4P F 2.5 5411
1603 242202518877 SOC USB H 8P F 2.0 5402
1932 242212803035 SWI TACT SM 1P 1POS SKQGAB
1933 242212803035 SWI TACT SM 1P 1POS SKQGAB
1934 242212803035 SWI TACT SM 1P 1POS SKQGAB
1935 242212803035 SWI TACT SM 1P 1POS SKQGAB
1936 242212803035 SWI TACT SM 1P 1POS SKQGAB
4444 313810610427 CD ROM - SERVICE MANUAL
4444 313810610428 SERVICE MANUAL
8161 313819873981 CBLE-267 7/330/7-267 AWG28
8163 313819875981 FFC 30/190/30 PITCH 1.0MM
LCD Panel
1050 823827717251 LCD LM190E3-L02
PCB Assy
1051 313815862701 SCALER ASSY
1052 823827718201 PSU OPENFR IPS 35W(T50P057.02)
1053 313815860161 CONTROL ASSY
PCB Assy
1051 313815862701 SCALER ASSY
2211 223878615649 CER2 0603 X7R 16V 100N PM10
2214 223878615649 CER2 0603 X7R 16V 100N PM10
2218 223886715339 CER1 0603 NP0 50V 33P PM5
2219 223886715221 CER1 0603 NP0 50V 220P PM5
2220 223878615649 CER2 0603 X7R 16V 100N PM10
2221 223878615649 CER2 0603 X7R 16V 100N PM10
2225 223878615649 CER2 0603 X7R 16V 100N PM10
2227 223878615649 CER2 0603 X7R 16V 100N PM10
2229 223878615649 CER2 0603 X7R 16V 100N PM10
2231 223878615649 CER2 0603 X7R 16V 100N PM10
2251 223878615649 CER2 0603 X7R 16V 100N PM10
2252 223878615649 CER2 0603 X7R 16V 100N PM10
2253 223878615649 CER2 0603 X7R 16V 100N PM10
2254 223878615649 CER2 0603 X7R 16V 100N PM10
2255 223878615649 CER2 0603 X7R 16V 100N PM10
2256 223878615649 CER2 0603 X7R 16V 100N PM10
2301 223878615649 CER2 0603 X7R 16V 100N PM10
2302 223886715101 CER1 0603 NP0 50V 100P PM5
2303 222224119876 CER2 1206 Y5V 10V 10U P8020
2304 223878615649 CER2 0603 X7R 16V 100N PM10
2305 223886715229 CER1 0603 NP0 50V 22P PM5
2306 223886715229 CER1 0603 NP0 50V 22P PM5
2308 223886715101 CER1 0603 NP0 50V 100P PM5
2401 202001293721 ELCAP SM RV2 16V 10U PM20
2402 223878615649 CER2 0603 X7R 16V 100N PM10
2403 223878615649 CER2 0603 X7R 16V 100N PM10
2404 222224119876 CER2 1206 Y5V 10V 10U P8020
2405 223878615649 CER2 0603 X7R 16V 100N PM10
2406 223878615649 CER2 0603 X7R 16V 100N PM10
2407 223878615649 CER2 0603 X7R 16V 100N PM10
2409 223878615649 CER2 0603 X7R 16V 100N PM10
2410 223878615649 CER2 0603 X7R 16V 100N PM10
2411 223878615649 CER2 0603 X7R 16V 100N PM10
2412 202203100068 ELCAP GL 25V S 470U PM20
2413 222224119876 CER2 1206 Y5V 10V 10U P8020
2414 223878615649 CER2 0603 X7R 16V 100N PM10
2415 223878615649 CER2 0603 X7R 16V 100N PM10
2416 223878615649 CER2 0603 X7R 16V 100N PM10
2417 223878615649 CER2 0603 X7R 16V 100N PM10
2418 222224119876 CER2 1206 Y5V 10V 10U P8020
2419 223878615649 CER2 0603 X7R 16V 100N PM10
2420 223878615649 CER2 0603 X7R 16V 100N PM10
2421 223878615649 CER2 0603 X7R 16V 100N PM10
2423 222224119876 CER2 1206 Y5V 10V 10U P8020
2425 223878615649 CER2 0603 X7R 16V 100N PM10
2501 223878615649 CER2 0603 X7R 16V 100N PM10
2502 223878615649 CER2 0603 X7R 16V 100N PM10
2503 202203100206 ELCAP SM HV 25V 47U PM20
2504 223878615649 CER2 0603 X7R 16V 100N PM10
2505 223878615649 CER2 0603 X7R 16V 100N PM10
2506 202203100206 ELCAP SM HV 25V 47U PM20
2507 223878615649 CER2 0603 X7R 16V 100N PM10
2508 223878615649 CER2 0603 X7R 16V 100N PM10
2509 202203100206 ELCAP SM HV 25V 47U PM20
2510 223878615649 CER2 0603 X7R 16V 100N PM10
2511 223878615649 CER2 0603 X7R 16V 100N PM10
2512 223878615649 CER2 0603 X7R 16V 100N PM10
2513 223878615649 CER2 0603 X7R 16V 100N PM10
2514 223858015641 CER2 0805 X7R 50V 22N PM10
2516 202203100366 ELCAP SK 50V S 10U PM20
2517 223858015641 CER2 0805 X7R 50V 22N PM10
2518 223886715221 CER1 0603 NP0 50V 220P PM5
2519 202203100068 ELCAP GL 25V S 470U PM20
2520 223878615649 CER2 0603 X7R 16V 100N PM10
2521 223878615649 CER2 0603 X7R 16V 100N PM10
2523 223878615649 CER2 0603 X7R 16V 100N PM10
2525 223878615649 CER2 0603 X7R 16V 100N PM10
2529 223878615649 CER2 0603 X7R 16V 100N PM10
2531 223878615649 CER2 0603 X7R 16V 100N PM10
2535 223878615649 CER2 0603 X7R 16V 100N PM10
2536 202203100366 ELCAP SK 50V S 10U PM20
2540 223878615649 CER2 0603 X7R 16V 100N PM10
2541 222224119876 CER2 1206 Y5V 10V 10U P8020
2542 223878615649 CER2 0603 X7R 16V 100N PM10
2543 202203100363 ELCAP RGA 25V S 100U PM20
2601 223878615649 CER2 0603 X7R 16V 100N PM10
2602 202203100363 ELCAP RGA 25V S 100U PM20
2603 202203100363 ELCAP RGA 25V S 100U PM20
2604 223878615649 CER2 0603 X7R 16V 100N PM10
2605 222224119876 CER2 1206 Y5V 10V 10U P8020
2606 223858615623 CER2 0603 X7R 50V 1N PM10
2607 223858615636 CER2 0603 X7R 50V 10N PM10
2608 223858615623 CER2 0603 X7R 50V 1N PM10
2609 223858615636 CER2 0603 X7R 50V 10N PM10
2610 223858615623 CER2 0603 X7R 50V 1N PM10
2611 223858615636 CER2 0603 X7R 50V 10N PM10
2612 223878615649 CER2 0603 X7R 16V 100N PM10
2613 223878615649 CER2 0603 X7R 16V 100N PM10
2614 223878615649 CER2 0603 X7R 16V 100N PM10
2615 223878615649 CER2 0603 X7R 16V 100N PM10
2616 223878615649 CER2 0603 X7R 16V 100N PM10
2617 223878615649 CER2 0603 X7R 16V 100N PM10
2618 223886715279 CER1 0603 NP0 50V 27P PM5
2619 223886715279 CER1 0603 NP0 50V 27P PM5
2620 223878615649 CER2 0603 X7R 16V 100N PM10
2621 223878615649 CER2 0603 X7R 16V 100N PM10
2622 223878615649 CER2 0603 X7R 16V 100N PM10
3208 232270296001 RST SM 0603 JUMP. MAX 0R05
3210 232270260101 RST SM 0603 RC21 100R PM5
3211 232270260101 RST SM 0603 RC21 100R PM5
3212 232270260101 RST SM 0603 RC21 100R PM5
3216 232270260101 RST SM 0603 RC21 100R PM5
3217 232270260101 RST SM 0603 RC21 100R PM5
3218 232270260101 RST SM 0603 RC21 100R PM5
3219 232270260101 RST SM 0603 RC21 100R PM5
3223 232270260101 RST SM 0603 RC21 100R PM5
3224 232270260101 RST SM 0603 RC21 100R PM5
3225 232270260101 RST SM 0603 RC21 100R PM5
3226 232270260101 RST SM 0603 RC21 100R PM5
3227 232270260222 RST SM 0603 RC21 2K2 PM5
3228 232270260222 RST SM 0603 RC21 2K2 PM5
3232 232270467509 RST SM 0603 RC22H 75R PM1
3234 232270467509 RST SM 0603 RC22H 75R PM1
3236 232270467509 RST SM 0603 RC22H 75R PM1
3242 212211805669 RST SM 0603 RC0603 10K PM5
3244 232270296001 RST SM 0603 JUMP. MAX 0R05
3245 232270296001 RST SM 0603 JUMP. MAX 0R05
3246 212211805669 RST SM 0603 RC0603 10K PM5
3255 232270260101 RST SM 0603 RC21 100R PM5
3256 232270260101 RST SM 0603 RC21 100R PM5
3257 232270260101 RST SM 0603 RC21 100R PM5
3302 232270260472 RST SM 0603 RC21 4K7 PM5
3303 232270260472 RST SM 0603 RC21 4K7 PM5
3305 232270260101 RST SM 0603 RC21 100R PM5
3306 213811201109 RST SM 0805 RC05 10R PM5
3307 232270260101 RST SM 0603 RC21 100R PM5
3308 232270260101 RST SM 0603 RC21 100R PM5
3309 212211805689 RST SM 0603 RC0603 1M PM5
3310 213811201109 RST SM 0805 RC05 10R PM5
3312 232270260101 RST SM 0603 RC21 100R PM5
3313 232270260101 RST SM 0603 RC21 100R PM5
Spare Parts List
HP L1940
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43
3314 232270260101 RST SM 0603 RC21 100R PM5
3315 232270260101 RST SM 0603 RC21 100R PM5
3316 232270260101 RST SM 0603 RC21 100R PM5
3317 232270260101 RST SM 0603 RC21 100R PM5
3318 232270260101 RST SM 0603 RC21 100R PM5
3319 232270260101 RST SM 0603 RC21 100R PM5
3320 212211805669 RST SM 0603 RC0603 10K PM5
3321 232270260472 RST SM 0603 RC21 4K7 PM5
3322 232270260472 RST SM 0603 RC21 4K7 PM5
3323 232270260101 RST SM 0603 RC21 100R PM5
3324 232270260101 RST SM 0603 RC21 100R PM5
3325 232270296001 RST SM 0603 JUMP. MAX 0R05
3326 212211805678 RST SM 0603 RC0603 47K PM5
3327 232270260472 RST SM 0603 RC21 4K7 PM5
3328 232270260472 RST SM 0603 RC21 4K7 PM5
3329 232270260472 RST SM 0603 RC21 4K7 PM5
3330 232270260472 RST SM 0603 RC21 4K7 PM5
3401 212211805637 RST SM 0603 RC0603 22R PM5
3402 232270260101 RST SM 0603 RC21 100R PM5
3403 232270260101 RST SM 0603 RC21 100R PM5
3406 232270260101 RST SM 0603 RC21 100R PM5
3407 232270260472 RST SM 0603 RC21 4K7 PM5
3408 212211805655 RST SM 0603 RC0603 820R PM5
3409 232270260101 RST SM 0603 RC21 100R PM5
3410 212211805662 RST SM 0603 RC0603 2K7 PM5
3411 212211805637 RST SM 0603 RC0603 22R PM5
3412 212211805637 RST SM 0603 RC0603 22R PM5
3413 212211805637 RST SM 0603 RC0603 22R PM5
3414 212211805651 RST SM 0603 RC0603 390R PM5
3501 232270260479 RST SM 0603 RC21 47R PM5
3502 232270260479 RST SM 0603 RC21 47R PM5
3503 212211805669 RST SM 0603 RC0603 10K PM5
3505 232270260101 RST SM 0603 RC21 100R PM5
3506 232270260101 RST SM 0603 RC21 100R PM5
3507 232270260101 RST SM 0603 RC21 100R PM5
3509 232270260221 RST SM 0603 RC21 220R PM5
3510 232270260221 RST SM 0603 RC21 220R PM5
3511 212211805669 RST SM 0603 RC0603 10K PM5
3512 212211805669 RST SM 0603 RC0603 10K PM5
3513 232270260101 RST SM 0603 RC21 100R PM5
3514 232270296001 RST SM 0603 JUMP. MAX 0R05
3515 232270260104 RST SM 0603 RC21 100K PM5
3516 232270260104 RST SM 0603 RC21 100K PM5
3517 212211805972 RST SM 1206 JUMP. MAX 0R05
3519 232270260472 RST SM 0603 RC21 4K7 PM5
3520 212211805659 RST SM 0603 RC0603 1K8 PM5
3521 232270260562 RST SM 0603 RC21 5K6 PM5
3522 212211805669 RST SM 0603 RC0603 10K PM5
3523 212211805669 RST SM 0603 RC0603 10K PM5
3524 212211805669 RST SM 0603 RC0603 10K PM5
3527 232270296001 RST SM 0603 JUMP. MAX 0R05
3528 232270296001 RST SM 0603 JUMP. MAX 0R05
3530 232270296001 RST SM 0603 JUMP. MAX 0R05
3531 232270296001 RST SM 0603 JUMP. MAX 0R05
3532 232270296001 RST SM 0603 JUMP. MAX 0R05
3601 232270296001 RST SM 0603 JUMP. MAX 0R05
3602 232270296001 RST SM 0603 JUMP. MAX 0R05
3603 212266200161 PTC SM 1812 13V2 0R45 PM
3604 232270296001 RST SM 0603 JUMP. MAX 0R05
3606 232270296001 RST SM 0603 JUMP. MAX 0R05
3607 212266200161 PTC SM 1812 13V2 0R45 PM
3608 232270296001 RST SM 0603 JUMP. MAX 0R05
3610 232270296001 RST SM 0603 JUMP. MAX 0R05
3611 232270296001 RST SM 0603 JUMP. MAX 0R05
3612 232270296001 RST SM 0603 JUMP. MAX 0R05
3613 212211805672 RST SM 0603 RC0603 15K PM5
3615 212211805672 RST SM 0603 RC0603 15K PM5
3616 232270260104 RST SM 0603 RC21 100K PM5
3617 212211805672 RST SM 0603 RC0603 15K PM5
3618 212211805672 RST SM 0603 RC0603 15K PM5
3619 212211805672 RST SM 0603 RC0603 15K PM5
3620 212211805672 RST SM 0603 RC0603 15K PM5
3621 212211805672 RST SM 0603 RC0603 15K PM5
3622 212211805672 RST SM 0603 RC0603 15K PM5
3623 212211805672 RST SM 0603 RC0603 15K PM5
3627 212211805672 RST SM 0603 RC0603 15K PM5
3628 232270296001 RST SM 0603 JUMP. MAX 0R05
3650 212211805972 RST SM 1206 JUMP. MAX 0R05
3652 232270296001 RST SM 0603 JUMP. MAX 0R05
5201 242254900451 IND FXD 1206 EMI 100MHZ 80R
5202 242254900451 IND FXD 1206 EMI 100MHZ 80R
5203 242254900451 IND FXD 1206 EMI 100MHZ 80R
5204 242254943769 IND FXD 0603 EMI 100MHZ 30R
5205 242254943769 IND FXD 0603 EMI 100MHZ 30R
5206 242254943769 IND FXD 0603 EMI 100MHZ 30R
5401 242254900451 IND FXD 1206 EMI 100MHZ 80R
5402 242254900451 IND FXD 1206 EMI 100MHZ 80R
5403 242254900451 IND FXD 1206 EMI 100MHZ 80R
5404 242254900451 IND FXD 1206 EMI 100MHZ 80R
5405 242254945787 IND FXD 0603 EMI 100MHZ 1K
5406 242254900451 IND FXD 1206 EMI 100MHZ 80R
5501 242254945579 IND FXD 1206 EMI 100MHZ 100R
5502 242254945579 IND FXD 1206 EMI 100MHZ 100R
5503 242254945579 IND FXD 1206 EMI 100MHZ 100R
5504 313818875691 COI CHOKE 35UH 82M OHM DR10X8
5505 242254945579 IND FXD 1206 EMI 100MHZ 100R
5506 242254945579 IND FXD 1206 EMI 100MHZ 100R
5602 242254945579 IND FXD 1206 EMI 100MHZ 100R
5604 242254945579 IND FXD 1206 EMI 100MHZ 100R
5606 242254945579 IND FXD 1206 EMI 100MHZ 100R
5607 242254900451 IND FXD 1206 EMI 100MHZ 80R
5611 242254900451 IND FXD 1206 EMI 100MHZ 80R
6201 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6202 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6203 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6204 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6205 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6225 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6226 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6241 933215370215 DIO SIG SM BAV99 (PHSE)
6242 933215370215 DIO SIG SM BAV99 (PHSE)
6243 933215370215 DIO SIG SM BAV99 (PHSE)
6301 933215370215 DIO SIG SM BAV99 (PHSE)
6302 933215370215 DIO SIG SM BAV99 (PHSE)
6303 933215370215 DIO SIG SM BAV99 (PHSE)
6304 933976370215 DIO SIG SM BAT54C (PHSE)
6501 932216670682 DIO REC SB240 A (VISH)
6611 933913910115 DIO SIG SM BAS32L (PHSE)
7210 935260739118 IC SM 74LVC14APW (PHSE)
7301 313815865131 EEPROM ASSY-CMO
7301 932214725682 IC M24C16-WBN6P (ST00)
7302 313815865121 CPU IC ASSY
7302 932222343682 IC SM NT68F631ALG (NOVA)
7401 932222437671 IC SM NT68563EFG (NOVA)
7501 932200429685 TRA SIG SM BC857C (ONSE)
7502 932200429685 TRA SIG SM BC857C (ONSE)
7503 934036790115 TRA SIG SM PDTC114EK (PHSE)
7504 932216638668 FET POW SM SI5441DC-E3 (VISH)
7505 932219076668 IC SM L5972D (ST00)
7506 932222077668 IC SM AME1117ECGTZ (AME0)
7601 932222280682 IC SM AT25040AN-10SU-2.7
7602 932222162671 IC SM CY7C65640-LFXC (CYPR)
PCB Assy
1053 313815860161 CONTROL ASSY
3933 212211805678 RST SM 0603 RC0603 47K PM5
3934 232270260472 RST SM 0603 RC21 4K7 PM5
3935 212211805669 RST SM 0603 RC0603 10K PM5
6931 932218082685 LED VS SM KAA-3528YSGC (KIEL)
44
HP L1940
Recommended Parts List
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Recommended Parts List
30 313815758111 FRONT BEZEL ASSY
31 313815414111 BEZEL
32 313815414131 CONTROL BUTTON
33 313815414141 LENS-POWER
34 313815161731 HP LOGO 7121 - 8115
41 313815414121 BACK COVER
50 313815758131 STAND-HPL1940
91 313815758121 MAIN SHIELD ASSY
92 313815136221 AC BRACKET
93 313815564902 FRONT COVER
101 313810440571 HOUSING COVER
103 313815414201 SCREW COVER
450 313815638761 CARTON
451 313815638461 CUSHION-R
452 313815638471 CUSHION-L
453 313815639092 PROTECTIVE BAG
456 313815639062 BASE P.E. BAG
601 313811707601 HP CD-ROM INF.
1157 313812874901 MAINSCORD
1158 313819871431 CORD SUB-D 15/1M8/15 D-SUB BK
1159 313819872531 CORD USB A/1M8/USB B BK
6225 933137390215 DIO REG SM BZX84-C5V1 (PHSE)
6241 933215370215 DIO SIG SM BAV99 (PHSE)
6304 933976370215 DIO SIG SM BAT54C (PHSE)
6501 932216670682 DIO REC SB240 A (VISH)
6611 933913910115 DIO SIG SM BAS32L (PHSE)
6931 932218082685 LED VS SM KAA-3528YSGC (KIEL)
7210 935260739118 IC SM 74LVC14APW (PHSE)
7301 313815865131 EEPROM ASSY-CMO
7301 932214725682 IC M24C16-WBN6P (ST00)
7302 313815865121 CPU IC ASSY
7401 932222437671 IC SM NT68563EFG (NOVA)
7501 932200429685 TRA SIG SM BC857C (ONSE)
7504 932216638668 FET POW SM SI5441DC-E3 (VISH)
7505 932219076668 IC SM L5972D (ST00)
7506 932222077668 IC SM AME1117ECGTZ (AME0)
7601 932222280682 IC SM AT25040AN-10SU-2.7
7602 932222162671 IC SM CY7C65640-LFXC (CYPR)
8161 313819873981 CBLE-267 7/330/7-267 AWG28
8163 313819875981 FFC 30/190/30 PITCH 1.0MM
Diversity of EJ6B6CT/00 compared with EJ6B6CT/74
Item 12NC Description
863900016596 EJ6B6CT/00
0139 313815759641 DFU ASSY
1170 313815862761 CABLE ASSY
1157 313812874931 MAINSCORD
Different Parts List
HP L1940
Go to cover page
45
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