Dell E173FP - 17" LCD Monitor User manual

DELL E173FP Service Manual
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17” LCD Monitor
DELL E173FP
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY
REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL;
WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF
PUBLICATION AND DISCLAIMS RE LIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
Prepared By: WuHaiyan
Checked By: Sushi
Manufacture Date: May-29-04
SERVICE MANUAL

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Table of Contents
Table of Contents -----------------------------------------------------------------------------------------------2
1. MONITOR SPECIFICATIONS -----------------------------------------------------------------------------4
2. LCD MONITOR DESCRIPTION -----------------------------------------------------------------------------5
3. OPERATING INSTRUCTIONS --------------------------------------------------------------------------6
3.1 GENERAL INSTRUCTIONS ----------------------------------------------------------------------------6
3.2 CONTROL BUTTONS ----------------------------------------------------------------------------------------6
3.3 ADJUSTING THE PICTURE ----------------------------------------------------------------------------7
4. Input/Output Specification--------------------------------------------------------------------------------------10
4.1 Input Signal Connector ----------------------------------------------------------------------------------------10
4.1.1 Analog D-SUB Connector ----------------------------------------------------------------------------------10
4.2 Factory Preset Display Modes ----------------------------------------------------------------------------10
4.3 Power Supply Requirements ----------------------------------------------------------------------------11
4.3.1 Input Requirements --------------------------------------------------------------------------------------11
4.3.2 Output Requirements----------------------------------------------------------------------------------------11
4.4 PANEL SPECIFICATION -------------------------------------------------------------------------------------11
4.4.1 Panel Feature ----------------------------------------------------------------------------------------------11
4.4.2 Display Characteristics ----------------------------------------------------------------------------------11
4.4.3 Optical Characteristics --------------------------------------------------------------------------------12
4.4.4 Parameter guide line for CCFL Inverter --------------------------------------------------------------12
5. Block Diagram ----------------------------------------------------------------------------------------------------13
5.1 Monitor Exploded View ----------------------------------------------------------------------------------------13
5.2 Software Flow Chart ----------------------------------------------------------------------------------------14
5.3 Electrical Block Diagram --------------------------------------------------------------------------------16
5.3.1 Main Board ----------------------------------------------------------------------------------------------------16
5.3.2 Inverter/Power Board----------------------------------------------------------------------------------------17
6. Schematic ----------------------------------------------------------------------------------------------------------18
6.1 Main Board --------------------------------------------------------------------------------------------------18
6.2 Inverter/Power Board --------------------------------------------------------------------------------------23

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7. PCB Layout ----------------------------------------------------------------------------------------------------25
7.1 Main Board --------------------------------------------------------------------------------------------------25
7.2 Inverter/Power Board --------------------------------------------------------------------------------------26
7.3 Keypad Board----------------------------------------------------------------------------------------------------28
8. Maintainability -----------------------------------------------------------------------------------------------------29
8.1 Equipments and Tools Requirements ---------------------------------------------------------------------29
8.2 Trouble Shooting -----------------------------------------------------------------------------------------------30
8.2.1 Main Board ----------------------------------------------------------------------------------------------------30
8.2.2 Power/Inverter Board ---------------------------------------------------------------------------------------33
8.2.3 Key Pad Board ------------------------------------------------------------------------------------------------35
9. White-Balance, Luminance adjustment ---------------------------------------------------------------------36
10. EDIT Content ----------------------------------------------------------------------------------------------38
11. ISP User Manual-------------------------------------------------------------------------------------------------39
11.1. Connect ISP Writer preparation action-------------------------------------------------------------------39
11.2. To Use ISP WRITER-----------------------------------------------------------------------------------------39
11.3. Executing ISP--------------------------------------------------------------------------------------------------43
12. BOM List ----------------------------------------------------------------------------------------------------------44

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1. MONITOR SPECIFICATIONS
Driving system TFT Color LCD
LCD Panel Size 43cm(17.0")
Pixel pitch 0.264mm(H) x 0.264mm(V)
Viewable angle 140˚(H) 120˚(V)
Response time (typ.) 16 ms
Video Analog Only
Input Sync. Type H/V TTL Separate and Composite Sync.
H-Frequency 30kHz – 80kHz
V-Frequency 56-75Hz
Display Colors Over 16.2 million Colors
Dot Clock 135MHz
Max. Resolution 1280 x 1024
Plug & Play VESA DDC2BTM
Power Consumption ON Mode <35W
Power Saving <2W
Maximum Screen Size Horizontal : 337.92mm
Vertical: 270.336mm
Power Source 90~264VAC,47~63Hz
Environmental
Considerations
Operating Temp: 0°C to 50°C
Storage Temp.: -20°C to 60°C
Operating Humidity: 10% to 90%
Weight (N. W.) Packaged 5.8Kgs Unit
Unpackaged 4.6Kgs Unit

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2. LCD MONITOR DESCRIPTION
The LCD MONITOR will contain a main board, an internal inverter/power board, keypad board,
which house the flat panel control logic, brightness control logic and DDC.
The internal Inverter/power board will drive the backlight of panel and the DC-DC conversion.
and provides the 12V DC-power to main board.
Inverter/Power Board
Flat Panel and
CCFL backlight
Main Board
Keyboard
RS232 Connector
For white balance
adjustment in
factory mode
HOST Computer
CCFT Driver.
Video signal, DDC
Monitor Block Diagram
AC Power IN

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3. OPERATING INSTRUCTIONS
3.1 GENERAL INSTRUCTIONS
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of
the monitor. By changing these settings, the picture can be adjusted to your personal preferences.
-The power cord should be connected.
-Connect the video cable from the monitor to the video card.
-Press the power button to turn on the monitor, the power indicator will light up.
3.2 CONTROL BUTTONS
-Power Button:
When pressed, the monitor enters the off mode, and the LED turns blank. Press again to restore normal
status.
-Brightness Button:
The Brightness Button is used to select the Brightness/Contrast adjust functions. Press to switch functions
or adjust settings.
-Auto Adjust Key:
The Auto Adjust Key is used to automatically set the H Position, V Position, Clock and Phase.
-Power Indicator:
Green — Power On mode.
Orange — Power Saving mode.
Blank —Power Off Mode.
A. Buttons for the OSD menu
(On-Screen-display)
B. Brightness Button
C. Auto Adjust Button
D. Power On/Off Button and indicator
Control Buttons

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3.3 ADJUSTING THE PICTURE
To set the OSD menu, perform the following steps:
Briefly press the SELCT / MENU button to activate the OSD menu.
The main menu appears on the screen with icons for the setting functions.
The first symbol (Exit) is highlighted.
Necessary, press the - or + button to mark another icon (e.g. Positioning).
Press the SELECT/MENU button to select the highlighted icon.
The corresponding setting window (here: Positioning) is displayed.
The first symbol (Exit) is highlighted.
If necessary, press the – or + button to mark the desired icon.
Press the SELECT/MENU button to select the highlighted function.
Press the – or + button to adjust the value for the selected function.
Press the SELECT/MENU button to exit the function.
Press the SELECT/MENU button to exit the sub-menu when “Exit” function is highlighted;
All changes are stored automatically.
Adjusting the brightness and contrast
Calling the Brightness / Contrast setting window using Brightness button.
Brightness Setting the brightness of the display
With this function you change the brightness of the background lighting.
Contrast Setting the contrast of the display
With this function you modify the contrast of bright colour tones.

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Adjusting size and position
Calling the Positioning setting window
H-Position Adjusting the horizontal position
With this function you move the picture to the left or to the right.
V-Position Adjusting the vertical position
With this function you move the picture up or down.
Setting Image
Calling the Image setting window
Auto
Adjust
Auto adjust will produce best image automatically, The information of “ Auto
Adjust In Progress” will show;
Pixel clock Adjusting the pixel clock
Phase Adjusting the phase
Setting colour temperature and colours
Calling the Color setting window
Selecting the colour temperature
The colour temperature is measured in K (= Kelvin). You can select from Normal
Preset, Blue Preset, Red Preset to User Preset;
Normal preset
Blue preset
Red preset
User preset
= Original colour of the LCD display, it’s 6500K;
=5700Kcolour of the LCD display, it’s 9300K;
=9300K colour of the LCD display, it’s 5700K;
= Setting user-defined colours
In the user preset setting you can change the colour ratios of the basic colours (red,
green, blue) as required.
Setting display of the OSD menu
Calling the OSD Set up setting window
Horizontal
Position
Setting the horizontal position of the OSD menu
With this function you move the OSD menu to the left or to the right.
Vertical
Position
Setting the vertical position of the OSD menu
With this function you move the OSD menu up or down.

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OSD
Hold
Time
Setting the display duration of the OSD menu
With this function you select a value from 0 to 60 seconds.
If the set time expires without a setting being made, the OSD menu is automatically
faded out.
OSD
Lock
Setting the display of the OSD menu lock or unlock.
With this function you select Yes to lock OSD, NO to unlock it.
Setting Language
Calling the Language setting window
With this function you choose between English (default setting), French, German,
Spanish and Japanese as the language for the OSD menu.
Factory Reset
Activating the factory settings
With this function all settings except Language of OSD are reset to the factory settings
without prompting for confirmation.

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4. Input/Output Specification
4.1 Input Signal Connector
4.1.1 Analog D-SUB Connector
1 6 2 7 3 8 4 9 5
11 12 13 14 15
10
1
7 1
6
Pin Meaning Pin Meaning
1 Video input red 9 +5 V (DDC)
2 Video input green 10 VGA-PG
3 Video input blue 11 Ground
4 Ground 12 DDC-Data
5 Ground 13 H. Sync
6 Red video ground 14 V. Sync
7 Green video ground 15 DDC Clock
8 Blue video ground
4.2 Factory Preset Display Modes
The following are the most frequently used of the preset operating modes:
Horizontal frequency Refresh rate Screen resolution
31.5 kHz
31.5 kHz
37.5 kHz
37.9 kHz
46.9 kHz
48.4 kHz
60.0 kHz
67.5KHz
64.0KHz
79.9KHz
70 Hz
60 Hz
75 Hz
60 Hz
75 Hz
60 Hz
75 Hz
75Hz
60Hz
75Hz
720 x 400
640 x 480
640 x 480
800 x 600
800 x 600
1024 x 768
1024 x 768
1152 x 864
1280 x 1024
1280 x 1024
For ergonomic reasons, a screen resolution of 1280 x 1024 pixels is recommended. Because of the
technology used (active matrix) an LCD monitor provides a totally flicker-free picture even with a refresh rate of
60 Hz.