Dell 2000FP Service manual

Dell 2000FP LCD Monitor Service Guide

Engineering Specification

Table of Contents

1. Introduction............................................................................................................................................2

2. Pacific Specification.............................................................................................................................2

Appendix 0 – AC/DC power adapter.........................................................................................................6

Appendix 1 – Video Connector.................................................................................................................7

Appendix 2 – Labels and Markings...........................................................................................................8

Appendix 3 – Preset Mode Timings.........................................................................................................8

Appendix 4 – OSD Operation Procedures...............................................................................................9

Appendix 5 – Special Indication...............................................................................................................14

Appendix 6 – Translation List...................................................................................................................15

Appendix 7 – EDID Content......................................................................................................................15

Appendix 8 – Power State Maximums.....................................................................................................18

Appendix 9 – LCD Module Specification................................................................................................18

Appendix 10 – Mechanical Specification................................................................................................18

Appendix 11 – Regulatories......................................................................................................................19

Appendix 12 – LCD Module Defects.......................................................................................................20

Appendix 13 – FOS Specifications (Draft)..............................................................................................21

Appendix 14 – FOS Notes.........................................................................................................................21

Appendix 15 – Shipment Conditions........................................................................................................22

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Dell 2000FP LCD Monitor Service Guide

Engineering Specification

1. Introduction

This specification describes a 20.1" UXGA TFT LCD monitor with a power adapter. It supports maximal resolution up to

1600×1200 and analog and digital inputs with DPMS. It also supports S-VIDEO and COMPOSITE video inputs. It features:

- Auto Key(Automatic adjustment function)

- User control: on/off switch, OSD control, brightness and contrast quick access, and input source selection keys

- Multi-timing support

- High quality advanced scaling function

- Power on/off indicator

- 4 input indication LEDs

- Universal power adapter

- 0.255(W)×0.255(H) mm dot pitch LCD panel

- PIP (picture in picture) feature

- Fancy OSD features:16-bit bitmap color for the splash screen, 16 pallets out of 16 bits colors for the OSD icons.

It is composed of the following materials:

-An LCD monitor (an LCM with TMDS interface, an I/F board, two control boards, and an inverter)

-A 15 pin D-SUB cable and a DVI-D signal cable

-A power adapter and a power cord

-Tilt and swivel base

-User manual / CD-ROM with E-doc, .inf/icm , and .cat (including both analog & digital registrations)

2. Pacific Specification

2.1 GENERAL DESCRIPTION

2.1.1 Display Data Area (with full white pattern)

(1) Horizontal 408 mm
(2) Vertical 306 mm

2.1.2 Video Performance

(1) Resolution UXGA 1600 × 1200 × R,G,B Maximum
(2) Display color 16.7 M colors

2.1.3 LCD technology

IPS(In phase switching) technology.

2.1.4 I/F

A D-SUB analog input, DVI-D digital input and 2 video inputs (S-VIDEO and COMPOSITE video ports).

2.2 ELECTRICAL CHARACTERISTICS

2.2.1 POWER SUPLLY

(1) Type external power adapter in IEC-320/CEE-22 female type
(2) Specification See Appendix 0 - Power Supply
(3) Power cable With the length of 1.8 meter, detachable and black color.
(4) Adapter cable Type captive DC power cable. The free end of this cable has a

pin-in-socket type connector for attaching to the monitor.

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Length and color With length of 1800mm, black color.

2.2.2 SIGNAL INTERFACE

(1) Analog input Pin assignment See Appendix 1 – Analog connector
Level 0.7 volt ± 5%
Impedance 75 ohm. TDR scan needed for both D-SUB cable and

interface board.
(2) TMDS input Pin assignment See Appendix 1 – DVI-D Connector
Level 600mV for each differential line.
Impedance 50 Ohm. TDR Scan needed for DVI cable and interface

board.
(3) Video input Pin assignment See Appendix 1 – Video connector
Level (S-VIDEO) Y input: 1 volt (p-p)

(S-VIDEO) C input: 0.286 Volt (p-p)

(COMPOSITE) 1 volt (p-p)
Impedance (S-VIDEO) Y input: 75 ohm

(S-VIDEO) C input: 75 ohm

(COMPOSITE) 75 ohm
(3) Sync input Type Monitor accepts separate Horizontal, Vertical sync,

composite sync, and SOG.
Level Monitor accepts positive and negative sync. signal from

both 3.3V and 5V TTL families. Inputs sense a logic 0

when the input absolute value is 0.8 V or less and logic 1

when the input absolute value is 2.3V or greater.
Impedance 2.2KOhm min (pull down)
(3) Signal cable Analog Detachable, shielded 2.0 meters (6.67 ft), D-SUB 15P

male connector, with blue connectors, thumb screws and

black color.
Digital Detachable, DVI-D, white connectors, 2.0 meters (6.67

ft) and black color.
Video S-VIDEO, COMPOSITE-video, w/o audio. Cables are not

included.
(4) Abnormal signal immunity The monitor cannot be damaged by improper sync, timing

pulse duration, or absence of sync, or abnormal input

signal amplitude (video and/or sync too large or too

small), or any other anomalous behavior of a graphics

card or video generator when changing modes, or when

any combination of input signals is removed or replaced.

Additionally, under these conditions, the monitor cannot

cause damage to the source.
(5)Warm-up time to stabilize the I/F setup Image is considered to be ready for correct position and

timing adjustment after 3 minutes maximal warm-up time.

2.2.3 MODES AND TIMING

(1) Synchronization range Horizontal frequency range: 31 to 80KHz

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Vertical frequency range: 56 to 76 Hz (excluding UXGA

resolution)
(2) Video modes Preset Modes 10 ea. factory preset timings.

User Mode Any video modes for which the timing is not recognized

as a preset but included in the synchronization range is

stored in user area. 5 ea. user defined timings.
Mode tolerance Monitor recognizes preset modes within a range of ±

0.5KHz for horizontal frequencies and within ± 0.5Hz

for vertical frequencies.

2.2.4 SCALING

Function Monitor is able to scale-up the image of the specified

video signal from computer at specified resolution

frequency smaller than 1600×1200 60Hz. Image is

automatically expanded to fill the entire screen. The

‘specified’ means a signal timing corresponding with

one of the preset modes.

2.2.5 Auto-Adjustment

Function For any preset mode, monitor is able to automatically

adjust horizontal and vertical position, phase and clock

parameters to achieve the best image quality, the image

will be perfectly centered and noise exempted. For

UXGA Vs>60Hz , this function can not be guaranteed.
Compatibility modes Auto-adjustment ensures full specification for listed

Preset Modes (UXGA, Vs >60Hz modes not included). It

is acceptable the auto-adjustment fails clock adjustment

operation when a non-factory preset mode presents. In

such case, end user has the possibility to adjust

horizontal and vertical position, phase and clock with the

OSD menu.

2.2.6 USER CONTROL AND INDICATORS

(1) Indicators Power LED color Full power: Green

DPMS sleep: Amber
Input LED color Input selected: Green

Non-selected: Off
(2) Key buttons Power control To power up/down the monitor
Auto-adjustment To perform auto-adjustment
Input selector To index to the next input source
Menu To activate the OSD
Down/Up To select between the items on OSD.
Direct adjustment of brightness & contrast (Up/Down buttons)
(+)/(-) To adjust the value of the item on OSD.

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(3) OSD Main Specification 5 languages
Format & Functionality See Appendix 4 – OSD Format-Function
Special Indications See Appendix 5 – Special Indications

2.2.7 PC INTERFACE

(1)DDC Type Monitor complies with VESA DDC standard, Version 2.0.

Required custom EDID files. Digital-Ver 1.3, Analog-

Ver1.3. See Appendix 7 – EDID Content
(2)DPMS Type Monitor includes VESA DPMS feature
Power Consumption See Appendix 8 –Power State Maximums

2.2.8 SHIPMENT CONDITIONS

(1) Shipment conditions Monitor is to be shipped with the setting described in

Appendix 17 – Shipment Conditions

2.3 LCD MODULE

2.3.1 LCD MODULE

(1) Main specification See Appendix 9 – LCD Module Specifications
(2) Defects See Appendix 12 – LCD Module Defects
(3) Display Degradation Over the life of the product, variation parameters defined

2.4 FRONT OF SCREEN

2.4.1 Min. functional warm-up time

3 mins

2.4.2 Specification

(1) FOS associated with LCD See Appendix 13 – FOS (front of screen) Specifications

(2) Measurement conditions See Appendix 14 – FOS Notes
(3) FOS reliability Over the life of the product, parameters defined in

2.5 MECHANICAL

2.5.1 INDUSTRIAL DESIGN

(1) Label and marking See Appendix 2 – Labels and Markings. All labels and

in Appendix 12 will not vary.

Module performance

Appendix 13 and 14 will not vary, excluding any

parameters depending on CCFL operation.

markings must be legible and sharp, positioned as shown

in the drawings, and properly aligned. Using the

time/distance criteria as given for the cosmetic

inspection in Appendix 10- Mechanical , no missing parts

of the characters or the DELL logo will be observed. All

labels and marking must be approved by DELL.

2.5.2 MECHANICAL SPECIFICATIONS

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Tested by loading side parallel with a

Engineering Specification

(1) Mechanical Specifications See Appendix 10 – Mechanical
(2) Cosmetic Inspection See Appendix 10 – Mechanical

2.5.3 SHIPPING CONTAINER

See Appendix 10 – Mechanical

2.6 PALLETIZATION & SHIPMENT

See Appendix 10 – Mechanical

2.7 SERIALIZATION

See Appendix 10 – Mechanical

2.8 APPLICATION REGULATION

See Appendix 11

2.9 ENVIRONMENTAL, RELIABILITY AND OPERATING SPECIFICATIONS

Operating conditions Temperature 5 to 35oC
Humidity 10% to 80% (non-condensing)
Storage conditions Temperature 0 to 60oC (storage) -20 to 60oC (shipping)
Humidity 5% to 90% (non-condensing) (storage)
5% to 95% (non-condensing) (shipping)

Appendix 0 – AC/DC power adapter

PARAMETER RANGE CONDITION
INPUT

Output

Input Voltage 90 to 264Vac RMS Universal input full range
Input Frequency 47~63 Hz 90 to 264Vac
Input Current Less than 1.7 ARMS Input voltage 90 Vac; 60Hz.

Inrush Current Less than 50A peak Input voltage 240Vac ; 50Hz at all

Input Fusing Fuse should be located internal to the

Leakage Current Less than 0.5mA Input voltage 250 Vac; 50Hz
Hi-Pot Primary to secondary 2150Vdc for 1 Sec(leakage current

DC Out 19.5Vdc (18.9~20.6) Min 0A Max 3.51A
Output Power 70Watt
Ripple & noise 500mVpp at 19.5VDC

Short circuit
protection

adapter

The adapter can withstand continuous
short at DC output and no damage, it’ll
enter into normal condition if the fault
condition is removed.

Parameter must be reached within 3
seconds of turn-on.

phase, cold start
Fuse must be UL/CUL approved.
Fuse value must no have to change
for 115 VAC operation

10 mA)

1uf/CC capacitors and Measured
Band-Width with DC-20MHz

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Appendix 1 – Video Connector

Analog input I: 15-pin D-SUB connector

PIN

1 RED VIDEO
2 GREEN VIDEO
3 BLUE VIDEO
4 GND
5 Self-test (Cable detector)
6 RED GND
7 GREEN GND
8 BLUE GND

9 PC5V
10 SYNC GND
11 GND
12 DDC DATA (SDA)
13 HORIZONTAL SYNC(H+V)
14 VERTICAL SYNC
15 DDC CLOCK (SCL)

SIGNAL

1 5

Digital input: 30-pin DVI-D connector

Pin Signal assignment Pin Signal assignment
1 TMDS RX2- 13 Floating
2 TMDS RX2+ 14 +5V Power
3 TMDS Ground 15 Ground
4 Floating 16 Hot Plug Detect
5 Floating 17 TMDS RX0­6 DDC Clock 18 TMDS RX0+
7 DDC Data 19 TMDS Ground
8 Floating 20 Floating
9 TMDS RX1- 21 Floating
10 TMDS RX1+ 22 TMDS Ground
11 TMDS Ground 23 TMDS Clock+
12 Floating 24 TMDS Clock-

6 10
11 15

15-pin D-SUB female

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24-pins DVI –D female

Video input I: S-VIDEO connector

PIN SIGNAL

1 GND
2 GND
3 LUMA
4 CHROMA

G GND

4-pin S-VIDEO female

Video input II: COMPOSITE video connector

Appendix 2 – Labels and Markings

Refer to RN-315

Appendix 3 – Preset Mode Timings

Resolution @ 60 Hz @ 70 Hz @ 75 Hz

640 × 480 P P
720 × 400 P
800 × 600 P P

1024 × 768 P P
1280 × 1024 P P
1600 × 1200 P

3 4
1

2

G

RCA jack

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Mode Synchro Polarity Dot Clock

(MHz)

1

2

3

4

5

6

7

8

9

10

H(Pixels) - 31.468 900 720 18 108 54

V(Lines) +

H(Pixels) - 31.469 800 640 16 96 48

V(Lines) -

H(Pixels) - 37.500 840 640 16 64 120

V(Lines) -

H(Pixels) + 37.879 1056 800 40 128 88

V(Lines) +

H(Pixels) + 46.875 1056 800 16 80 160

V(Lines) +

H(Pixels) - 48.363 1344 1024 24 136 160

V(Lines) -

H(Pixels) + 60.023 1312 1024 16 96 176

V(Lines) +

H(Pixels) + 63.981 1688 1280 48 112 248

V(Lines) +

H(Pixels) + 79.976 1688 1280 16 144 248

V(Lines) +

H(Pixels) + 75.000 2160 1600 64 192 304

V(Lines) +

28.321

25.175

31.500

40.000

49.500

65.000

78.750

108.000

135.000

162.000

Frequency

(KHz/Hz)

Total

Period

(Pixels)

Display

Period

(Pixels)

Front
Porch

Period

Synchro

Period

(Pixels)

(Pixels)

70.8 449 400 12 2 35

59.940 525 480 10 2 33

75.000 500 480 1 3 16

60.317 628 600 1 4 23

75.000 625 600 1 3 21

60.004 806 768 3 6 29

75.029 800 768 1 3 28

60.020 1066 1024 1 3 38

75.025 1066 1024 1 3 38

60.000 1250 1200 1 3 46

Back

Porch
Period
(Pixels

)

Resolution

720×400

640×480

640×480

800×600

800×600

1024×768

1024×768

1280×1024

1280×1024

1600×1200

Appendix 4 – OSD Operation Procedures

Key definitions

There are 8 keys for user's control, which include “POWER”, “AUTO”, “INPUT”, “MENU”, “”, “”, “+”,

and “”. The following description defines the function of these keys.

“POWER” Mark F, to turn on/off the monitor.
“AUTO” Mark E, for auto adjusting vertical position, horizontal

“INPUT” To switch the input source among “D-sub”, “DVI-D”,

“MENU” Mark C, to enter OSD operation mode.
“” To select OSD items / “Hot Key” for contrast

“” To select OSD items / “Hot Key” for brightness

“+” To increase the value of the selected OSD item.
“–” To decrease the value of the selected OSD item.

position ,pixel clock and the phase.

“S-VIDEO”, and “COMPOSITE”.

adjustment.

adjustment.

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Brightness

The brightness function adjusts the luminance of the backlight in the LCM. With OSD menu off, push the ""
button to display the Brightness (and contrast) adjustment menu. Adjust Brightness first, then adjust Contrast only if
further adjustment is necessary.

Push the + button to increase the luminance;
push the – to decrease luminance (min. 0 ~ max 100).

Contrast

The contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.
With OSD menu off, push the "" button to display the Contrast (and brightness) adjustment menu. For DVI-D input,
the contrast adjustment is disabled.

Push the + button to increase the contrast;
push the – button to decrease the contrast (min. 0 ~ max 100).

Main menu

“Positioning”, “Image Settings”, “Color Settings”, “OSD Settings”, “Language”, “Factory Reset” and “PIP”. The
following pages describe the details of these items.

Positioning

Use "" or "" to select “Horizontal Position”, “Vertical Position”, and “Zoom” functions. When the selected item
is highlighted, the function is activated. Press "+" or "–" to adjust the “Horizontal Position”, “Vertical Position”, or
“Zoom” of the display.

Press “MENU” key to enter OSD main menu as figured below. The OSD main menu has 8 items including “Exit”,

Use "" or "" to select “Positioning” in the main menu and press "MENU" to enter “Positioning” sub-menu.

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Horizontal Position

Press +/– to adjust the horizontal position of the display and press "Menu" to return to the previous OSD page.

Vertical Position

Press +/– to adjust the vertical position of the display and press "Menu" to return to the previous OSD page.

Zoom In/Out

Press +/– to zoom In/Out the display and then press "Menu" to return to the previous OSD page. After Zoom In,
then the Zoom Left/Right, Down/Up functions can be activated.

Image Settings

Use "" or "" to select “Image Settings” in the main menu and press "MENU" to enter “Image Setting” sub­menu. Use "" or "" to switch among “Auto Adjust”, “Pixel Clock”, “Phase”, “Sharpness”, Scaling, and “Image
Source” functions. When the selected item is highlighted, the function is activated then you can press "+" or "–" to
adjust the “Auto Adjust”, “Pixel Clock”, “Phase”, “Sharpness”, Scaling, and “Image Source” functions.

Auto Adjust

Press “+” to start “Auto Adjust” function.

Pixel Clock

Press +/– to adjust the value of “Pixel Clock” and press "Menu" to return to the previous OSD page.

Phase

Press +/– to adjust the value of “Phase” and press "Menu" to return to the previous OSD page.

Sharpness

Press "+" or "–" to adjust the degree of “Sharpness” and press "Menu" to return to the previous OSD page. It
smoothes an image which may help the eyes to see more detail.

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Scaling

Scaling optimizes the display for the type of software you are using. Includes “1:1”, “Fill”, and “Aspect”.
Under Image Setting sub-menu, press “Menu" to activate the scaling adjustment bar and by pressing "+" or "–" to
select among “1:1”, “Fill”, and “Aspect”. Then press "Menu" once to return to the Image Setting sub-menu or
twice to return to the main menu.

Color Settings

Color Settings adjusts the color temperature. Press "" or "" to select “Color Settings” function from main
menu and press "MENU" to enter “Color Setting” sub-menu. Press "" or "" to switch between “9300 Preset”,
“6500 Preset”, and “User Preset”. For S-VIDEO and COMPOSITE video input, the color settings adjust the Hue/Tint
and Saturation function.

User Preset

Press +/– to adjust the value of R, G, and B separately. Press "Menu" to return to the main menu.

OSD Settings

Use "" or "" to select “Horizontal Position”, “Vertical Position”, “OSD Hold Time”, and “OSD Lock”.

Horizontal Position

Press +/– to adjust the horizontal position of the OSD and press "Menu" to return to the previous OSD page.

Vertical Position

Press +/– to adjust the vertical position of the OSD and press "Menu" to return to the previous OSD page.

OSD Hold Time

Press +/– to adjust the hold time of the OSD and press "Menu" to return to the previous OSD page.

OSD Lock

By pressing “+” or “–“, you can lock or unlock the OSD. Then press "Menu" to return to the previous OSD page.

Language

Use "" or "" to select different languages from English, Español, Français, Deutsch, and Japanese. Then press
"Menu" to return to the previous OSD page.

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Factory Preset

The function of “Factory Preset” is to reset control settings to the factory preset values for the selected group of
functions. Press "" or "" to select “Position Setting”, “Color Setting”, and “All setting” and then press “Menu” to
execute.

PIP Settings

The function of “PIP Settings” is to set the Picture-In-Picture window. Press "" or "" to select “PIP Source”,
“PIP Size”, “PIP Bright”, “PIP Contr.”, “Hue/Tint”, “Saturation”, “PIP Hor. Pos”, or “PIP Ver. Pos” and press “+”
and “-“ to adjust the item selected.

PIP Source

Use +/– to select input sources from “S-VIDEO” and “COMPOSITE”. Or “Off” to turn off PIP window. Press
"Menu" to return to the previous OSD page.

PIP Size

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Use +/– to select “Small”, “Medium”, and “Large” PIP window. Press "Menu" to return to the main menu.

PIP Bright.

Press +/– to adjust the brightness of PIP window. Press "Menu" to return to the main menu.

PIP Contr.

Press +/– to adjust the contrast of PIP window. Press "Menu" to return to the main menu.

PIP Hue/Tint

Press +/– to adjust the hue/tint of PIP window. Press "Menu" to return to the main menu.

PIP Saturation

Press +/– to adjust the saturation of PIP window. Press "Menu" to return to the main menu.

PIP Hor. Position

Press +/– to adjust the PIP window position horizontally. Press "Menu" to return to the main menu.

PIP Ver. Position

Press +/– to adjust the PIP window position vertically. Press "Menu" to return to the main menu.

Appendix 5 – Special Indication

Self Test Feature Check (STFC)

The floating 'Dell - Self Test Feature Check' dialog will appear on the screen (against a black background) if the
signal cable is detached. The monitor should stay in STFC mode until the input selection button is pressed, or the
cable is re-attached.

“Auto Adjust In Progress” message

When monitor is doing auto adjustment, the “Auto Adjust In Progress” message will appear on the screen.

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“Cannot Display This Video Mode” message

When the D-sub input pixel clock over 200MHz or the input pixel clock over 162 MHz of DVI-D, it cannot be
displayed, the warning message “Cannot Display This Video Mode” will appear on the screen.

“In Power Save Mode” message

When the computer system is under power saving mode, the monitor will show the message of “In Power Save
Mode” before entering the DPMS mode.

Appendix 6 – Translation List

TBD

Appendix 7 – EDID Content

D-SUB port

Item Byte Description Data Hex Remarks
HEADER 8 00, FF, FF, FF, FF, FF, FF, 00
Vendor
Product ID

Revision
Basic Display

Parameter and
Features

2 Mfg. Name 10,AC DELL
2 Product Code 02,A0 2000FP
4 Serial Number (varies) 34,33,32,31 4321
1 Mfg. week (varies) 14 20th week
1 Mfg. year (varies) 0B 2001
1 Version 01 1 EDID Version
1 Revision 03 3
1 Video input 0E 0.7Vpp analog RGB, supports

1 Max Horiz size cm 29 40.8 cm
1 Max Vert size cm 1F 30.6 cm
1 Gamma Value 96 Gamma=2.5

separate, composite sync and SOG

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Engineering Specification

1 Feature Support EB standby/suspend/off

preferred timing
default GTF supported

Color
Characteristics
Established
Timings

Standard
timing

Detailed
Timing
Description
Monitor
Descriptor

18 Monitor Name 00,00,00,FC,00,44,

18 Range Limit 00,00,00,FD,00,38,

Extension Flag 1 00
Check sum 1 00 (varies)

10 R,G,B 4C,40,A1,57,4C,

97,26,1C,50,54

1 Timing I A5

xR=0.63 yR=0.34 xG=0.30 yG=0.59
xB=0.15 yB=0.11 xW=0.313 yW=0.329
720×400 @ 70: Y
720×400 @ 88: N
640×480 @ 60: Y
640×480 @ 67: N
640×480 @ 72: N
640×480 @ 75: Y
800×600 @ 56: N
800×600 @ 60: Y

1 Timing II 4B

800×600 @ 72: N
800×600 @ 75: Y
832×624 @ 75: N
1024×768 @ 87: N
1024×768 @ 60: Y
1024×768 @ 70: N
1024×768 @ 75: Y

1280×1024 @ 75: Y
1 Mfg. reserved 00 Not used
2 ID #1 81,80 1280×1024,60Hz
2 ID #2 A9,40 1600×1200,60Hz

10 ID # 3,4,5, 6, 7, and 8 01,01,01,01,01,01,

Unused

01,01,01,01,01,01

18 Detailed Timing

(Preferred timing mode)

18 Serial No 00,00,00,FF,00,30,30,33,30,50

48,3F,40,30,62,B0,32,40,40,
C0,13,00,6F,13,11,00,00,1E

,39,37,52,31,32,33,34,0A

1600×1200,60Hz

Serial No.

0030P - 97R - 1234

“DELL 2000FP”

45,4C,4C,20,32,30,
30,30,46,50,0A,20

V range 56-76Hz

4C,1F,50,10,00,0A,
20,20,20,20,20,20

H range 31-80kHz

Max pixel clk 162Mhz

DVI–D port

HEADER 8 00, FF, FF, FF, FF, FF, FF, 00
Vendor
Product ID

Revision

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Item Byte Description Data Hex Remarks

2 Mfg. Name 10,AC DELL
2 Product Code 03,A0 2000FP
4 Serial Number (varies) 34,33,32,31 4321
1 Mfg. week (varies) 14 20th week
1 Mfg. year (varies) 0B 2001
1 Version 01 1 EDID Version
1 Revision 03 3
1 Video input 80 digital port

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Color
Characteristics
Established
Timings

Standard
timing

Detailed
Timing
Description
Monitor
Descriptor

18 Monitor Name 00,00,00,FC,00,44,

18 Range Limit 00,00,00,FD,00,38,

Extension Flag 1 00
Check sum 1 00 (varies)

1 Max Horiz size cm 29 40.8 cm
1 Max Vert size cm 1F 30.6 cm
1 Gamma Value 96 Gamma=2.5
1 Feature Support EB standby/suspend/off

preferred timing

default GTF supported

10 R,G,B 4C,40,A1,57,4C,

97,26,1C,50,54

1 Timing I A5

xR=0.63 yR=0.34 xG=0.30 yG=0.59

xB=0.15 yB=0.11 xW=0.313 yW=0.329

720×400 @ 70: Y

720×400 @ 88: N

640×480 @ 60: Y

640×480 @ 67: N

640×480 @ 72: N

640×480 @ 75: Y

800×600 @ 56: N

800×600 @ 60: Y
1 Timing II 4B

800×600 @ 72: N

800×600 @ 75: Y

832×624 @ 75: N

1024×768 @ 87: N

1024×768 @ 60: Y

1024×768 @ 70: N

1024×768 @ 75: Y

1280×1024 @ 75: Y
1 Mfg. reserved 00 Not used
2 ID #1 81,80 1280×1024,60Hz
2 ID #2 A9,40 1600×1200,60Hz

10 ID # 3,4,5, 6, 7, and 8 01,01,01,01,01,01,

Unused

01,01,01,01,01,01

18 Detailed Timing

(Preferred timing mode)

18 Serial No 00,00,00,FF,00,30,30,33,30,50

48,3F,40,30,62,B0,32,40,40,
C0,13,00,6F,13,11,00,00,1E

,39,37,52,31,32,33,34,0A

1600×1200,60Hz

Serial No.

0030P - 97R - 1234

“DELL 2000FP”

45,4C,4C,20,32,30,
30,30,46,50,0A,20

V range 56-76Hz

4C,1F,50,10,00,0A,
20,20,20,20,20,20

H range 31-80kHz

Max pixel clk 162Mhz

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Engineering Specification

Appendix 8 – Power State Maximums

CUP
State
ON Active 60W -- Green
Stand-by Sleep 5W Amber
Suspend Sleep 5W Amber
OFF Sleep 5W Amber

Monitor
State

Maximum
Power

Maximum Recovery
time

LED State

Appendix 9 – LCD Module Specification

ITEMS LG.PHILIPS LM201U1-A1
Diagonal size 20.1 inches (51 cm)
Pixel arrangement 1600×1200×R,G,B
Display mode Normally black IPS
Viewing angle technology Wide view angle
Natural color depth 24 bits
Input I/F TMDS
External dimensions 467.8(W)×361.0(H)×32.0(D)
Surface treatment Hard coating 3H, Anti-glare treatment
Backlight Operating Lifetime
(Brightness=50%)
Maximum starting time
Under operation conditions

30,000Hrs (min)

2 sec

Appendix 10 – Mechanical Specification

All plastics Resin

ITEMS Specification

Material GEC2800/Bayer FR2000/CHIEL NH-1000T
Texture ACM standard
UV <1
Heat Defection Temp.
Flame Retardant Pkg Triarylphosphate esters
Flammability V0
Color Midnight gray/Pearl white

Mechanical Assembly

ITEMS Specification

Gap LCD Panel/bezel gap<1.2mm
Gap front/rear cover 0.5<gap<1.5mm
Gap between other plastic parts <1.0mm
Step in the same plastic <0.5mm
Step between different plastics <0.8mm
LCD module centering Viewable area cannot be hidden by the front bezel

80°C

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Engineering Specification

Dimensions

ITEMS Specification

Monitor weight Approximately 11.7kg
Footprint W×D 417.76×266.56mm
Cabinet dimension W×H×D 512.5(W) X509(H) X226.5 (D) mm
Bezel opening 409.9(W)×308(H) mm
Monitor height 509mm
Tilt -5~+15 degree

Cosmetic inspection shall be performed under specific time, distance, and lighting requirements as detailed below. This is
to be the first test performed on any new product, and is to be performed under normal lighting of 500 lux as measured
perpendicular to the work surface, and 250 lux as measured perpendicular to the center of the display screen, per ISO 9241-3,
unless otherwise specified. No magnification is to be used except in the case of measuring LCD polarizer or screen defects.
During a visual inspection, a judgment must be made as to whether or not the end user would consider the flaw(s) objectionable.
During this inspection, only visual qualities are to be considered. The unit shall exhibit no objectionable defects under the
following inspection time and viewing distance criteria:

- Front panels: Inspect for 10 seconds at viewing distance of 500 mm.

- All other sides: Inspect for 5 seconds each at a viewing distance of 500 mm.

The following items are unacceptable if found during the time given for the inspection:

1. Missing parts.

2. Deformed case parts, control knobs, feet, or other parts.

3. Broken case or other parts.

4. Scratches greater than 0.5mm wide, or greater than 10 mm long, or greater than 0.2 mm deep.

5. Any scratches on the painted surface of any panel which allows the substrate material to show through

6. Any dirt or finger print

Appendix 11 – Regulatories

Safety

Agencies

P

UL R1950, £Other

P

CSA R950, £Other

P

TUV RTUV, RGS, RErgo

P

Nemko
Semko
Demko
Fimko

P

DHHS

P

CCIB

P

Other CB report

EMC

Agencies

P

FCC £FCC-A, RFCC-B

P

CE

P

VCCI £VCCI-I, RVCCI-II

P

C-Tick

P

BCIQ (BSMI)

P

Other IC/ Canada

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Engineering Specification

Other

Agencies

P

EPA
TCO92

P

TCO95
TCO99
E2000

P

GOST

P

PCBC

P

PSB

P

EZU

P

PTB

Appendix 12 – LCD Module Defects

Items Spec

AQL

Bright dot

Dot defect

Dark dot

Foreign

Material

Major defect AQL=0.65%
Minor defect AQL=1.5%

1 dot N<=5
Adjacent 2 dots N<=1
Adjacent 3 dots Not allowed

Min. distance L>=15mm

Total amount of Bright dot N<=5

1 dot N<=10
Adjacent 2 dots N<=2
Adjacent 3 dots Not allowed

Min. distance L>=15mm

Total amount of Dark dot N<=10

Total N<=10

0.01<=W<=0.1

Scratch (linear type)

0.3<=L<=7.0
N<=4 Polarizer

Dent (circular type)

Dot shape

0.2<=D<=0.5
N<=4

0.2<=D<=0.5
N<=4

0.05<=W<=0.1

Line shape

0.3<=L<=4.0
N<=4

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1

3 9

7

Engineering Specification

Appendix 13 – FOS Specifications (Draft)

Values Parameter Symbol

Min. Typ. Max.
Contrast Ratio CR 250 350 - 2
Luminance, white SBWH 200 250 - Cd/m2 3
Luminance uniformity 70 - - % 4
CIE Color Coordinates
Red
Green
Blue
White

Viewing Angle by CR ≥ 10
x axis, right (Ô =0º)
x axis, left(Ô =180º)
y axis, up(Ô =90º)
y axis, down (Ô =270º)
Response Time Tr - 39 45 msec 6

x
y
x
y
x
y

x

W

yW

è
è
è
è

R
R
G
G
B
B

0.600

0.310

0.270

0.560

0.120

0.080

0.283

0.299

80
80
80
80

0.630

0.340

0.300

0.590

0.150

0.110

0.313

0.329

-

-

-

-

0.660

0.370

0.330

0.620

0.180

0.140

0.343

0.359

-

-

-

-

Units Notes

(See Appendix 14)

Degree

Appendix 14 – FOS Notes

1. Test conditions: (unless otherwise specified, all measurement shall be made under the test conditions below)

5

- Ambient illumination level: dark (<10 lux)

- Ambient temperature: 25 oC

- Warm-up: 30 minutes

- Input signal timing: VESA UXGA @ 60Hz on video generator

- User control: Brightness = 90%, Contrast = 50%, Color temperature = Factory user preset mode

- Test equipment: Prichard 880 or equivalent

- Measurement locations on the flat panel:

2

4

Column #160

2. Contrast Ratio CR= Surface luminance (full white pattern) / Surface luminance (full black pattern)

3. Luminance SBWH=L5

4. Luminance variation SBV = Min (L1, L2,…L9) / Max (L1, L2,…L9) ×100%

5. Viewing angle:
Measurement is done at position 5

Column #800

5

8

Column #1440

6

Row #120

Row #600

Row #1080

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E

100

90

10

0

Engineering Specification

Viewing angle origine is the axis normal to the flat panel. Left (L) and right (R) values are the maximum angles for
which CR  10. Up (U) and down (D) values are the maximum angles for which CR  10.
See figure below:

Normal

Ô

TrD

y

Ô = 90o Up

x

Ô = 0o Right

TrR

white

black

è

Ô = 180o Left

Ô = 270o Down

6. Response time
TrR measures the transition time of L1 relative luminance from white to black state, from 90% to 10% (see graph
below)
TrD measures the transition time of L1 relative luminance from black to white state, from 10% to 90% (see graph
below)

%

Optical
Response

white

7. White balance and chromaticity: measured at Center position.

8. Dark luminance: at any point
Specific conditions: dark luminance is measured in a dark room (< 10 lux).

Appendix 15 – Shipment Conditions

ITEM State
Brightness 90%
Contrast 50%
OSD-Color temp. 6500K
OSD-Image size Fill
OSD-Language English
OSD-Timeout 20 sec

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Alignment Procedure

Casing input

LCM sorting

Use UXGA 60Hz with Full-White / Full-Black / Pure-R / Pure-G / Pure-B patterns to check LCM.

I/F board barcode scanning
Mechanical offset adjustment
DDC Programming
Preset timing check

D-SUB port / DVI port

Check the following preset timings with General pattern:

No. Mode H V

1 720×400 @ 70Hz 31.468 70.8
2 640×480 @ 60Hz 31.469 59.940
3 640×480 @ 75Hz 37.500 75.000
4 800×600 @ 60Hz 37.879 60.317
5 800×600 @ 75Hz 46.875 75.000
6 1024×768 @ 60Hz 48.363 60.004
7 1024×768 @ 75Hz 60.023 75.029
8 1280×1024 @ 60Hz 63.981 60.020
9 1280×1024 @ 75Hz 79.976 75.025

10 1600×1200 @ 60Hz 75.000 60.000

PIP function

No. Monitor settings Signal source Criteria

1 S-Video with DVD-NTSC

Main source: D-SUB or DVI displaying normally
PIP source: S-Video and PIP size: Large

2
3 Comp. with DVD-NTSC

Main source: D-SUB or DVI displaying normally
PIP source: Comp. and PIP size: Large

4

S-Video with DVD-PAL

Comp. with DVD-PAL

DVD video is displaying normally.

Video function

No. Monitor settings Signal source Criteria

1 S-Video with DVD-NTSC

Main source: S-Video

2
3 Comp. with DVD-NTSC

Main source: Comp. video

4

S-Video with DVD-PAL

Comp. with DVD-PAL

DVD video is displaying normally.

1

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Dell 2000FP LCD Monitor Service Guide

Alignment Procedure

Brun in

Set the monitor to Burn-In mode before burning in.

Casing output

Performance checking

Powering up with factory mode

Connect D-SUB signal and the power.
Hold ‘Auto’ and ‘Source’ keys at the same time for 5 sec to let the monitor power up in the factory mode.

D-SUB port

Use UXGA 60Hz with 5-Mosaic pattern to calibrate the ADCs.
Check the following preset timings with General pattern:

No. Mode H V

1 720×400 @ 70Hz 31.468 70.8
2 640×480 @ 60Hz 31.469 59.940
3 640×480 @ 75Hz 37.500 75.000
4 800×600 @ 60Hz 37.879 60.317
5 800×600 @ 75Hz 46.875 75.000
6 1024×768 @ 60Hz 48.363 60.004
7 1024×768 @ 75Hz 60.023 75.029
8 1280×1024 @ 60Hz 63.981 60.020
9 1280×1024 @ 75Hz 79.976 75.025

10 1600×1200 @ 60Hz 75.000 60.000
Press Auto-Adjustment if needed.
Check if the picture is OK and no jitters are found. Any noise on the picture will not be acceptable.

DVI port

Connect DVI-D signal.
Check the following preset timings with General pattern:

No. Mode H V

1 720×400 @ 70Hz 31.468 70.8
2 640×480 @ 60Hz 31.469 59.940
3 640×480 @ 75Hz 37.500 75.000
4 800×600 @ 60Hz 37.879 60.317
5 800×600 @ 75Hz 46.875 75.000
6 1024×768 @ 60Hz 48.363 60.004
7 1024×768 @ 75Hz 60.023 75.029
8 1280×1024 @ 60Hz 63.981 60.020
9 1280×1024 @ 75Hz 79.976 75.025

10 1600×1200 @ 60Hz 75.000 60.000
Check if the picture is OK and no jitters are found. Any noise on the picture will not be acceptable.

2

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Alignment Procedure

PIP function

No. Monitor settings Signal source Criteria

1 S-Video with DVD-NTSC

Main source: D-SUB or DVI displaying normally
PIP source: S-Video and PIP size: Large

2
3 Comp. with DVD-NTSC

Main source: D-SUB or DVI displaying normally
PIP source: Comp. and PIP size: Large

4

S-Video with DVD-PAL

Comp. with DVD-PAL

DVD video is displaying normally.
Any noise will not be acceptable

Video function

No. Monitor settings Signal source Criteria

1 S-Video with DVD-NTSC

Main source: S-Video

2
3 Comp. with DVD-NTSC

Main source: Comp. video

4

S-Video with DVD-PAL

Comp. with DVD-PAL

DVD video is displaying normally.
Any noise will not be acceptable

Default settings

No. Item Default values

1 Brightness 90
2 Contrast 50
3 Color temperature 6500K
4 Image scaling Fill
5 Language English
6 OSD hold time 20

Color temperatures

Color temperature The x coordinate The y coordinate

9300K 283±30 297±30
6500K 313±30 329±30

Brightness uniformity

Input source: D-SUB or DVI-D running at UXGA 60Hz

No. Item Spec

1 Brightness (center point) 250 cd/m2
2 Uniformity (9 points) Lmin/Lmax > 70%

Power consumption

No. Item Spec

1 Power saving < 5W
2 Normal operation  60W

Serial Number recording & DDC checking (Both D-SUB and DVI)
On-Line QA / Cosmetic Inspection
Packing

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Dell 2000FP LCD Monitor Service Guide

Circuit Operation Theory

Introduction

This specification describes a 20.1" UXGA TFT LCD monitor with a power adapter. It supports maximal resolution up to

1600×1200 and analog and digital inputs with DPMS. It also supports S-VIDEO and COMPOSITE video inputs. It features:

- Auto Key (Automatic adjustment function)

- User control: on/off switch, OSD control, brightness and contrast quick access, and input source selection keys

- Multi-timing support

- High quality advanced scaling function

- Power on/off indicator

- 4 input indication LEDs

- Universal power adapter

- 0.255(W)×0.255(H) mm dot pitch LCD panel

- PIP (picture in picture) feature

- Fancy OSD features:16-bit bitmap color for the splash screen, 16 pallets out of 16 bits colors for the OSD icons.

Block diagram

FP2036 consists of an LCD module with 6 lamps, an Inverter, an Interface board with DC-DC, ADC, DVI and Video

circuit, and 2 control boards. There is one adaptor converting AC input to DC 20V. The block diagram is shown below:

LCD module with 6 lamps (backlight)

Main board with DC-DC circuit

Inverter

Control board

D-Sub DVI-D S-Video Composite

DC 20V adapter

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Circuit Operation Theory

Circuit operation theory

Block diagram

D-SUB

DVI-D

S-VIDEO

COMP.

140MHz

ADC

100MHz

ADC

Single Link

TMDS

Video

Decoder

Flash Rom

GPORT

PW171

VPORT

Deinterlacer

8 Mbits

Clock

Generator

TMDS

Trans-

mitter

Keypad RS232

UXGA
1600×1200
LCM

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Circuit Operation Theory

Circuit operation theory

A basic operation theory for the interface board is to convert input signal into digital RGB or YUV data.
Analog RGB signal is converted to digital signal through ADC. DVI-D signal is converted through TMDS
receiver. Video decoder is used to capture and scale S-typed and composite video signal. It is able to decode the
color of PAL , SECAM, and NTSC system. The microprocessor PW171 receives graphic and video data and
optimizes the image automatically. It also supports PIP function, input source selection, 16 color from a 64k
palette bitmap OSD, on-chip frame buffer providing frame rate conversion, and keypad controlling. The output
data are sent to LCD module through a T MDS transmitter.

Main function ICs

A/D converter

2 AD9884A’s are used as ADCs. Master one goes up to 140MHz and the slave one 100MHz. The maximal
resolution supported is UXGA 60Hz, which has a pixel clock of 162MHz. Any supported mode whose
pixelclock is under 140MHz will use only master ADC (running up to 140MHz). Timings that have pixel clocks
between 140MHz and 200MHz will use both ADCs running up to 100MHz each to perform a 200Mhz ADC
virtually. When 2 ADCs are utilized, one of them takes care of the sampling at even clocks and the other at odd
clocks. 24-bit digital RGB data are then converted and go to G-Port of PW171. Notice that these digital data are
wired-ORed with the data from TFP401, TMDS receiver at DVI-D port.

TMDS receiver

TI TFP401 is used as a TMDS receiver. The maximal pixel clock is 162MHz, 1600×1200@60Hz. 24-bit data
(dual-pixel mode) are decoded and go to G-Port of PW171. These data are wired-ORed with the data from 2
AD9884’s, A/D converters at D-SUB port.

Video decoder

Philips SAA7114H is used as a video decoder to decode signals from S-Video and Composite Video. It decodes
the video signal of PAL, SECAM and NTSC formats. The decoded data contain 8-bit UV color data and 8-bit
luminance data. The data go to the video de-interlacer.

Video de-interlacer

Genesis gmVLX1A-X is used to de-interlace input video data. Video is required to be de-interlaced for better
display on progressive scan monitors. The gmVLX1A-X requires an external RAM to store one previous field.
De-interlaced data go to V-Port of PW171.

Image processor

Pixelworks image processor PW171 is a highly integrated "system-on-a-chip" that interfaces analog ,digital, and
video input formats. An embedded SDRAM frame buffer and memory controller perform frame rate conversion.
An integrated OSD controller provides bit-mapped based OSDs with 16 colors out of a 64K color palette.

TMDS transmitter

SiliconImage SiI160 is used to perform TMDS dual pixel data transmission . It transmits the displaying data to
the LG-Philips LM201U1-A3 UXGA LCM.

Flash ROM

A flash ROM is used to store the firmware program used by the image processor PW171.

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Circuit Operation Theory

DDC IC for both D-SUB and DVI

24C02 is used to support DDC2B function in both D-SUB and DVI ports. EDID data used for D-SUB and DVI
are stored in different 24C02’s respectively.

EEPROM

A 24C16 (2048 bytes) is used to store user settings, such as user timing settings, brightness/contrast, color
temperature, etc.

DC-DC converter

Buck Converter

L701

68U

L703

OPEN

C713

100U

16V

D703

RB060L-40

+ +

C712

100U

16V

C711

100U

16V

R719

1.1K

(1%)

+

R714

3.3K

+

Q703

2N3904

R737

20K

R715

22

Q704

2N3906

R733

2.7K

R732R731

0

GND

Q705

SI4431DY

18
2
3
4

S
S
S

RB060L-40

D
D
D
DG

D701

7
6
5

Fig.1

Fig.1 shows a typical Buck converter circuit. Q705 is a switching device. Q703, Q704 are a totem pole which
gets enough ability to drive P-MOS. When pin4 of Q705 is low, Q750 turns on. At high level, Q750 turns off.
So, pulse waveform will appear at D-terminal of Q705. L701,C711,C712,C713 and D701,D703 will transfer the
pulse to stable DC level.

PWM IC (TL1451)

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Circuit Operation Theory

R723

OPEN

C708

1U

16V

(1206)

R724

OPEN

VREF

C709

1U

16V

(1206)

R713

47K

VREF
C710

1U

16V

(1206)

IC701

TL1451

VREF

16

1

RFF

CT

C702

680P

R706

10K

R707

15

SCP

RT

2

R705

(1%)

10K

C703

1U

16V

(1206)

(SHORT)

14

1IN+

1IN+

3

(OPEN)

10K

R708

10K

C704

C707

0.01U

C705

(OPEN)

13

2IN-

1IN-

4

12

2FBK

1FBK

5

C706

0.01U

R711

5.1K

R710

5.1K

11

6

2DTC

1DTC

R712

47K

10

2OUT

1OUT

7

9

VCC

GND

8

Fig. 2

The TL1451AC incorporates on a single monolithic chip all the functions required in the construction of two
pulse-width modulation control circuits. Designed primarily for power supply control, the TL1451AC contains
an on-chip 2.5V regulator two error amplifiers, an adjustable oscillator, two dead-time comparators,
undervoltage lockout circuitry, and dual common-emitter output transistor circuits. The uncommitted output
transistors provide common-emitter output capability for each controller. The internal amplifiers exhibit a
common-mode voltage range from 1.04V to 1.45V. The dead-time control comparator has no offset unless
externally altered and can provide 0% to 100% dead time. The on-chip oscillator can be operated by erminating
RT and CT. During low Vcc conditions, the undervoltage lockout control circuit feature locks the outputs off
until the internal circuitry is operational.

Feed-back Circuit

R718

1.8K

(1%)

R719

1.1K
(1%) (1206)

C717

1200P

50V

R726

330

1/4W

Fig. 3

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Circuit Operation Theory

The feedback circuit is composed of two resistors. They are R718 and R719, and feedback the DC level 1.25V
with error signal . C717 is a compensation capacitor, and R726 is dummy load.

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CP5
C/CP

N37

12

N17

N20

N51

N16

12

N18

12

12

N54

N58

CP6
C/CP

87654321

CN3

1

3

SM02(8.0)B-BHS-1-TB

CN2

1

3

SM02B-BHSS-1-TB

CN5

1

3

SM02(8.0)B-BHS-1-TB

CN4

1

3

SM02B-BHSS-1-TB

D

C

B

Q3A
SI9435

3

12

R/2K/1206

D11

D/LS4148

12

R/2K/1206

2
1

12

R11

2

Q10A

SI9435

3
2

12

1

12

R12

2

D12

D/LS4148

CN1

D

S8B-PH-SM3-TB

C

B

1
2
3
4
5
6
7
8

C/225K/1206

Vbri

Vin

GND

Vbri

ON/OFF

Vbri

12

C3

R13

1 2

R/369K

R8

1 2

N31

R/453K

12

CP2
C/CP

1 2

1 2

R5

1 2

R/369K

R3

1 2

N30

R/453K

12

CP1
C/CP

N73

R24
R/511K

1 2

R7
R/165K

R0

R/0 ohm

R1

R/20K

12

C/471J

(NPO)

N4

R18
R/165K

C6

F1

R2

R/5.1K

12

16

N19

R4
R/511K

1 2

12

F/5A/1206

N6

14

SCP15REF

IN+_2

12

13

C2

IN-_2

2

12

+

C/47uF

C/104K

1 2

1 2

N74

12

12

FEB_2

C1

N5

3

Q2
Q/3904

1

C15

C/104K

R6

R/5.1K

N53

C4

11

C/103J

10

DTC_2

CT1RT2IN+_13IN-_14FEB_15DTC_16OUT_17GND

N39

N40

12

C7

12

12

R9

R/10K

R10

C/103J

R/5.1K

N3

N28

1 2

C24

C/104K

1 2

2

OUT_2

N26

9

8

REF

N27

U1
BA9741

VCC

N35

N1

C12

C/105K/1206

12

C10

12

C/104K/0805

R14
R/100K

12

N29

R/NC

C/105Z/0805

R/NC

R25

R37

1

Q1Q/MUN5112T1

22k

22k

3

N7

12

C5

12

C9

C/105Z/0805

12

R27
R/100K

1 2

4

4 2

3

Q4
Q/3904

N8

1

N24

Q10

Q/SI3457DV

4

4 2

3

Q11

Q/3904

N44

1

12

8
7
6
5

Q3

Q/SI3457DV

3

12

8
7
6
5

3

12

D5

D/LS4148

N77

D1

D/LS4148

N17

L3

L/450m

N20

L4

L/450m

N51

N25

6
5

N9

1

12

R/350k

12

R/350k

6
5

N46

1

1 2

1 2

L1

1 2

L/245uH

D2

D/S24

1 2

R/470/0805

12

D3 75V

R38

D7 75V

D13 75V

12

R39

D14 75V

L2

L/245uH

D6

D/S24

R15

12

N81

12

R/12k

12

N82

12

N83

12

12

N84

D/RLZ33B

1 2

R28

R/470/0805

1 2

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023ict-0

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023ict-0.sch

1

MODIFY FOR CURRENT BALANCE

05/09/2001

0 NEW RELEASE 04/12/2001

REV.

DESCRIPTION REL. DATE

AMBIT

SCALE
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1 of 1

Title
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PREPARED BY
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A

Dell 2000FP LCD Monitor Service Guide

1

Trouble Shooting

Categorizing the problem before troubleshooting

Step Condition Symptoms Troubleshooting category

1 The monitor is connected to

the adaptor

appropriate signal source and
the power button is pressed

3 Picture is displaying but not

good

4 Picture is displaying normally

5 No DDC PC system doesn’t detected the correct

All LEDs are on Abnormal LED troubleshooting

LED is not working correctly Power not good troubleshooting 2 The monitor is connected to
No splash screen / No video No video troubleshooting

Picture on D-SUB is not good D-SUB troubleshooting
Picture on DVI is not good DVI troubleshooting
Picture on S-Video is not good S-Video troubleshooting
Picture on Composite video is not good Composite video troubleshooting
Picture on PIP is not good PIP troubleshooting
Press menu key but there is no OSD
Source selection key is not working
Auto adjustment key is not working
OSD control keys are not working

monitor name

Keys not working troubleshooting

DDC troubleshooting

Abnormal LED troubleshooting

Normal operation

Right after the adaptor is connected to the monitor, all the LEDs will turn on for less than 3 seconds and then

turn off.

Troubleshooting scope

This troubleshooting applies to the case that all the LEDs are permanently on after the adaptor is connected.

Step Check item Yes No Note

1 The LEDs are on permanently Step 2 Beyond the scope
2 IC113 is working and there is a valid

clock output on pin 5

3 There is clock waveform on the 2 pins

of Y103

4 The LEDs are working normally Problem solved Contact ACM *

*Note: If the LEDs are not working, the image processor U1 and related ICs may not be working normally.

Replace IC123 and go to Step 4 Step 3

Replace IC113
Go to step 4

Replace Y103
Go to step 4

Power not good troubleshooting

Normal operation

The LED on the AC adaptor is on. The monitor is connected correctly to the adaptor. After the power key is

pressed, the power LED (green color) turns on and works normally.

Troubleshooting scope

Confidential

Dell 2000FP LCD Monitor Service Guide

2

Detach the AC adaptor from the monitor

Trouble Shooting

This troubleshooting applies to the 2 cases:

1. The LED of the AC adaptor does not turn on.

2. The power LED of the monitor does not turn on normally after the power key is pressed.

Step Check item Yes No Note

1

and see if the LED of the AC adaptor

turns on normally.
2 The power cord is good. Replace the AC adaptor. Replace the power cord.
3 Connect the AC adaptor to the monitor

and see if the adaptor’s LED is on.
4 Check if control board and the power

key is OK.
5 Detach wire cables at CON106,

CON107 and CON108.

Press power key again and see if the

power LED on the monitor turns on.
6 See if the LCM is good. Step 7 Replace the LCM.
7 See if the inverter is good. Contact ACM. Replace the inverter.

No video troubleshooting

The AC adaptor is good.

Step 2

Go to step 3.

Step 4 Step 5

Step 5 Keys not working

troubleshooting

Step 6 There is short circuit

somewhere in the interface
board.

Normal operation

A splash screen shows up when the power key is pressed and the monitor turns on. The display is either
normal when appropriate signal is connected or there will be pop-up messages indicating ‘Check Signal Cable’,
‘In Power Save Mode’ or ‘Cannot Display This Video Mode’.

Troubleshooting scope

This troubleshooting applies to the case that the power LED on the monitor turns on normally after the power
key is pressed but there is no splash screen showing up and no display is showing.

Step Check item Yes No Note

1 Remove all the signal cables and the

adaptor cable. Plug in the adaptor cable
again. Press the power key and the
power LED turns on green.

2 A splash screen shows up. LCM is good.

3 Check if interfacing cables at CON106,

CON107 and CON108 are OK and well

connected to LCM and interver.
4 Replace an inverter and see if it works Inverter damaged Step 5
5 Replace an LCM and see if it works LCM damaged Step 6
6 Check display port output at PW171.

check if sync signals are normal and

stable at RP126.
7 Check if TMDS signals at CON107 are

good
8 Check if PLL part at IC114 is working

normally

Step 2 Power not good trouble

shooting

Step 3
Go to port-specific trouble
shooting by checking which
input LED turns on.
Step 4 Fix the cables.

U1 and IC114 PLL circuit are

Step 8
good
Go to step 7
Contact ACM Check IC110 and replace it if

needed
Contact ACM Replace Y104 if needed

Confidential

Dell 2000FP LCD Monitor Service Guide

3

Trouble Shooting

D-SUB troubleshooting

Normal operation

The monitor supports up to UXGA 60Hz on the D-SUB port. The image is displayed normally.

Troubleshooting scope

This troubleshooting applies to the case that ‘Check Signal Cable’ is working normally but the image on D-

SUB is not displaying correctly.

Step Check item Yes No Note

1 Current input source is D-SUB. Remove

D-SUB cable and see if the floating
message ‘Check Signal Cable’ appears.

2 Plug in D-SUB cable and check if any

image is displaying

3 Check if image becomes normal by

automatically or manually adjusting
Pixel Clock and Phase in OSD

4 Check if H-sync and V-sync is good at

R260, R261 and pin 2, 3, 5 and 6 of
IC905

5 Check if G-CLK clock signal is good at

R917

6 Check if R/G/B input signal at pin 7, 15,

22 of IC907 and IC107 is good

Step 2 No video troubleshooting

Step 3 Step 4

CND / The monitor is good. Step 4

Step 5 Check components on H-sync

and V-sync paths

Step 6 Check IC901 and IC107 circuit

Check IC901 and IC107 circuit Check D-SUB signal cable and

connector CON101.

DVI troubleshooting

Normal operation

The monitor supports up to UXGA 60Hz on the DVI port. The image is displayed normally.

Troubleshooting scope

This troubleshooting applies to the case that ‘Check Signal Cable’ is working normally but the image on DVI

is not displaying correctly.

Step Check item Yes No Note

1 Current input source is DVI. Remove

DVI cable and see if the floating
message ‘Check Signal Cable’ appears.

2 Plug in DVI cable and check if any

image is displaying.

3 Check if sync and clock are good at

RP413.

4 Check if DVI signal cable and connector

CON401 are OK.

5 Check if DDC on DVI port is OK Replace IC401. Check EDID and DDC circuit at

Step 2 No video troubleshooting

Step 4 Step 3

Check IC401 circuit. Step 4

Step 5 Fix the cable and connector.

IC402.

S-Video troubleshooting

Normal operation

Confidential

Dell 2000FP LCD Monitor Service Guide

4

Trouble Shooting

The monitor supports NTSC/PAL/SECAM formats on the S-Video port. The video is displayed normally.

Troubleshooting scope

This troubleshooting applies to the case that ‘Check Signal Cable’ is working normally but the video on S-

Video is not displaying correctly.

Step Check item Yes No Note

1 Current input source is S-Video.

Remove S-Video cable and see if the
floating message ‘Check Signal Cable’
appears.

2 Plug in S-Video cable and check if any

video is displaying.

3 Check if the color setting is correct by

adjusting Color in OSD.

4 Check if CON601, R608, R609, R633

and R634 are OK.

Step 2 No video troubleshooting

Step 3 Step 4

Step 4 Set Hue/Tint and Saturation to

50.
Check IC602, IC128 and IC129
circuit.

Fix the components.

Composite video troubleshooting

Normal operation

The monitor supports NTSC/PAL/SECAM formats on the Composite video port. The video is displayed

normally.

Troubleshooting scope

This troubleshooting applies to the case that ‘Check Signal Cable’ is working normally but the video on

Composite video is not displaying correctly.

Step Check item Yes No Note

1 Current input source is Composite

video. Remove Composite video cable
and see if the floating message ‘Check
Signal Cable’ appears.

2 Plug in Composite video cable and

check if any video is displaying.

3 Check if the color setting is correct by

adjusting Color in OSD.

4 Check if CON602, R635 and R610 are

OK.

Step 2 No video troubleshooting

Step 3 Step 4

Step 4 Set Hue/Tint and Saturation to

50.
Check IC602, IC128 and IC129
circuit.

Fix the components.

PIP troubleshooting

Normal operation

The monitor supports PIP feature for S-Video and Composite video. The video is displayed normally on the

PIP window.

Troubleshooting scope

This troubleshooting applies to the case that S-Video or Composite video is displaying normally without PIP

but not displaying correctly on the PIP.

Confidential

Dell 2000FP LCD Monitor Service Guide

5

Contrast correctly. See if the problem is

Check if CON115 and CON109 are well

Trouble Shooting

Step Check item Yes No Note

1 Use source selection key to let S-Video

/ Composite video displayed with full
screen instead of PIP window.

2 Check if video signal is displayed

normally

3 Set PIP feature active and set PIP

settings like PIP Brightness and PIP

- -

Step 3 S-Video / Composite video

troubleshooting

CND / The monitor is good. Contact ACM

solved

Keys not working troubleshooting

Normal operation

The 8 keys on the monitor are for Power On/Off, Auto-adjust, Source Selection, and OSD controls.

Troubleshooting scope

This troubleshooting applies to the case that image is displayed on the screen normally but some of the key

functions are not working properly.

Step Check item Yes No Note

1 Check if the control board and wires are

connected well

2

connected with the wires.

DDC troubleshooting

Normal operation

The monitor can be detected by Plug-and-Play Windows system. Graphics cards normally need valid EDID

data to be detected before the DVI port can be activated.

Step 2 Fix the wires.

Check IC120 circuit. Fix the wires.

Troubleshooting scope

This troubleshooting applies to the case that the monitor cannot be detected by PNP Windows system.

Step Check item Yes No Note

1 Check if the D-SUB / DVI signal cable

is good.

2 Use DDC programming equipment to

dump EDID and see if EDID can be read
out.

3 Check if EDID content is correct. Contact ACM. Keep the serial number and re-

Step 2 Replace with a good cable.

Step 3 Check IC104 circuit for D-SUB

port and IC402 for DVI port.

program the EDID.

Confidential