Dell W2607C User manual

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S
SE ER RV VI IC CE E M MA AN NU UA AL L
LCD TV W2607C
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 RELIABILITY FOR CHANGES,
ERRORS OR OMISSIONS.

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Revision List
Version Release Date Revision Instructions TPV Model
A00 April-5-2006 Initial Release EEF5GHNKDEDMJMP
A01 April-14-2006
Update the method of accessing into factory
mode
A02 April-25-2006 Add “Max Brightness measurement” on Page 33
A03 Nov.-13-2007 Add new modle in Item 14
E265GHNKDEDFNP
E265GHNKDEDLNP
E265GHNKDEDMNP

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Important Safety Notice
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.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINGS
Proper service and repair is important to the safe, reliable operation of all Dell Company** Equipment. The service
procedures recommended by Dell and described in this service manual are effective methods of performing service
operations. Some of these service operations require the use of tools specially designed for the purpose. The special
tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in
order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods
may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE NOT
EXHAUSTIVE. Dell could not possibly know, evaluate and advise the service trade of all conceivable ways in which
service might be done or of the possible hazardous consequences of each way. Consequently, Dell has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by Dell must first satisfy himself thoroughly that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
* * Hereafter throughout this manual, Dell Company will be referred to as Dell.
WARNING
Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock, fire,
or other hazards.
Under no circumstances should the original design be modified or altered without written permission from Dell. Dell
assumes no liability, express or implied, arising out of any unauthorized modification of design. Servicer assumes all
liability.
Take care during handling the LCD module with backlight unit
-Must mount the module using mounting holes arranged in four corners.
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to
the Panel.
- Protect the module from the ESD as it may damage the electronic circuit (C-MOS).
- Make certain that treatment person’s body is grounded through wristband.
- Do not leave the module in high temperature and in areas of high humidity for a long time.
- Avoid contact with water as it may a short circuit within the module.
If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)
FOR PRODUCTS CONTAINING LASER:
DANGER - Invisible laser radiation when open. AVOID DIRECT EXPOSURE TO BEAM.
CAUTION - Use of controls or adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure.
CAUTION - The use of optical instruments with this product will increase eye hazard.
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL
MANUFACTURER'S REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART
NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE MANUAL.

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Table Of Contents
Revision List .............…………...............……..............................................…………........................… 2
Important Safety Notice……………………………………………………………………………………………. 3
Table Of Contents .............................................................................................………….......................... 4
1. General Specifications ................................................................................………….......................... 5
2. Operating Instructions ..................................................................................……………..…………... 6
2.1 The Use Of Remote Control ..........................................................................................……………...6
2.2 Front Panel Control Knobs ...................................................................................…………………. 9
2.3 OSD Operating ............................................................................................................……………. 13
2.4 Connecting LCD TV Display ..........................................................................................................…. 20
3. Input /Output Specification ..........................................................................................…………… 23
3.1 Input Signal connector ...........................................................................................................… 23
3.2 Factory Preset Display Modes ...................................................................................................…. 24
4. EDID Program Instructions ........………………………………………………………………………….. 25
5. Firmware Upgrade Instructions ........………………………………………………………………………… 28
5.1 Tools And Software ..........………………………………………………………………………………. 28
5.2 Installation ............…………………………………………………………………………………….. 28
6. Definition Of Pixel Defects ........………………………………………………………………………………. 30
6.1 Dot Defects ............…………………………………………………………………………………… 30
6.2 Polarizer Defects...........…………………………………………………………………………………….. 30
6.3 Foreign Material.........……………………………………………………………………………………….. 31
6.4 Line Defect ............…………………………………………………………………………………… 31
6.5 Bezel Appearance.......………………………………………………………………………………………. 31
6.6 Others………………………………………………………………………………………………………… 31
7. White Balance, Luminance Adjustment ………………………………………………………………… 32
8. Mechanical Instructions ........…………………………………………………………………………….. 34
9. Repair Flow Chart .......................................................…………………………………………..........…. 41
10. PCB Layout ........................………………………………………...........................………………...… 45
10.1 Main Board ......................…………………………......................…….............………………...… 45
10.2 Power Board ................……...................………..............……......……….........……………….…. 47
10.3 I/O Board ...........................………........………………………………………………………………. 48
10.4 Key Board ..........................………........………........………..............…….......………………..…… 48
10.5 Side Board ...........................………........………........…………………………………………… 49
11. Block Diagram .........................................................................................………………………….…. 50
11.1 Main Board ...........................………........…………………………………………………………….… 50
11.2 Power Board ...................................………………………………………………………...……….… 51
11.3 Exploded View ...........................……………………………………………………………………… 52
12. Schematic Diagram .............…………....................................................……………………………. 53
12.1 Main Board ......................……....................................................………………………………… 53
12.2 Power Board ...................……....................................................…………………………………. 78
13. BOM List ........................................................…………………………………………........................ 79
14. Different Parts List …………………………………………………………………………………………….. 120

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1. General Specifications
Items Specification
Screen Size 26” TFT LCD color Panel (LPL)
Image Aspect Ratio Wide Screen (16:9)
Resolution 1366 x 768 (WXGA)
Viiewable Area 575.8mm×323.7mm
Pixel Pitch 0.1405mm×0.4215mm
Display colors 16.7 million
Contrast Ratio 600:1 (Typical)
Brightness 500 cd / m²(Typical)
Viewing Angle 170°(Horizontal) / 170°(Vertical)
Response Time
(Gray to Gray) 8ms (Typical)
Lamp Lifetime 60,000 hr (Typical)
LCD Panel
Color Temperature Cool / Warm
TV Tuning System NTSC/ATSC
Composite (CVBS) Two (side+ bottom)
S-Video Two (side+ bottom)
Component Two (bottom)
TV in (coaxial) Two (bottom)
Audio (L+R) Six pairs
Video
DVI (For use with a video device) One (bottom)
VGA (For use as computer monitor) One (bottom)
DVI (For use as computer monitor) One (bottom)
Inputs
Computer
Audio (PC) One (bottom)
Composite (CVBS) One (bottom)
Audio (L+R) One pair
Outputs Video
Headphone One (side)
HDTV Capable Yes
Closed Cption Yes
TV Function
V -Chip Yes
Analog: D-Sub 15 pin (detachable cable)
Signal Input Digital: DVI-D 24 pin (detachable cable)
PnP compatibility DDC2B
Input frequency Analog: FH: 31 kHz to 64 KHz; FV: 50 Hz to 75 Hz
PC Input
Input Audio F Headphone Mini-jack for stereo
Speaker (built-in): Two 15 (max) watt speakers
Audio Output Audio Output: L / R Effects: SRS TruSurround XT; Midnight Mode
Power Supply AC 100V~240V, 50 ±3Hz, 60 ±3Hz
Power Power-On Consumption <180 W
Panel Tilt/ Swivel Tilt, Swivel -5 /+20 degrees, +/- 45 degrees.
Temperature: 0°C ~ + 40°C
Operating Humidity: 10% ~ 85%
Temperature: -10°C ~ + 50°C
Environment
Storage Humidity: 5% ~ 85%
Weight (with stand) 14.5 Kg

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2. Operation Instructions
2.1 The Use Of Remote Control
Installing batteries
Before you use your remote control, install two-AAA batteries.
1. Slide open the battery cover.
2. Install the batteries, make sure that you match the + and – on the batteries with + and – symbols in the battery
compartment.
3. Replace the battery cover.

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1 Power Button Turns the wide LCD monitor on and off
2 Number Button Press to select a channel
3 Enter Select an TV menu option, confirms a channel selection
4 Mute Press to turn the sound on and off
Push to view the next channel
5 CH (up icon) In the TV menu, use the channel button to navigate through the menus in the
TV menu
6 Vol + Increases the volume in the TV Menu, use the volume button to navigate
through the menus
Press to view the previous channel
7 CH (down icon) In the TV menu, use the channel button to navigate through the menus in the
TV menu
8 Sleep Turns on the sleep timer
9 INFO Display information about your TV display (for example, in TV mode display
the channel you are watching)
10 SRS Toggle SRS surround on and off
11 CC Cycles through the Closed Caption menu.
12 Audio Cycles through the preset Audio options
13 Pict Cycles through the preset options for the Picture menu
14 Wide Cycles through the size (aspect ratio) options from the Picture menu
15 SAP Turns on the Second Audio Program (SAP)
16 ANT Selects TV turner as input source
17 Guide Toggle EPC on and off
18 Menu Enters and exit the TV main menu
19 OK Selects an TV main menu
20 Vol - Decreases the volume in the TV Menu, use the volume button to navigate
through the menus
21 Prev CH Returns you to previously viewed channel
22 - For setting channels
23 Input Enters and exits the Input Select menu

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2.2 Front Panel Control Knobs
Front View
1. IR receiver Senses the signal from the remote control
2. Power indicator Light
(LED)
The light is blue when the TV display is on and amber when it is
in power save mode.

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Right Side View
1. Power button Press to turn the TV display on and off. The power button is blue when
it is on and amber when it is in power saving mode
2. TV menu button Press to enable the TV menu
3. Volume button Press to decrease the volume
4. Volume button Press to increase the volume
5. Channel button Press to select the previous channel or navigate through the TV menu
6. Channel button Press to select the next channel or navigate through the TV menu
7. Input select button Press to display the Input select menu

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Left Side View
1. AV Side (S-Video 2) Connect devices such as a video game system or a VCR
2. AV Side (Composite 2) Connect devices such as a VCR or DVD player
3. AV SIDE audio connector Use the audio connector if you have connected a device
to AV SIDE connector
4. Headphone connector Connect headphones

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Bottom View
1. DVI audio connector (L / R) Use the DVI audio connector if you have connected a device
such as a DVD player to the DVI connector.
2. VGA Connect your computer.
3. DVI connector Connect your computer or video devices such as a DVD
player.
4. Audio connector for VGA or DVI Connect the audio cable from your computer to the LCD TV
Display.
5. NTSC/Analog Cable Connect analog cable TV box or an analog antenna.
6. HDTV/Digital Cable Connect digital cable TV box or a digital antenna.
7. Composite out/Audio Out (L/R) Connect to VCR (L/R) audio inputs.
8. Composite out/Video Out Connect to VCR video input.
9. Composite video and audio
connectors (AV1) Connect devices such as a VCR or DVD player.
10. S-Video video and audio connectors
(AV2) Connect devices such as a video game system or a VCR.
11. Component video and audio
connectors (AV3) Connect devices such as a DVD player or cable TV box.
12. Component video and audio
connectors (AV4) Connect devices such as a DVD player or cable TV box.
13. Power connector Connect your power cord.

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2.3 OSD Operating
Using Remote Control With the TV Menu
1. To enter the TV menu, press the menu button. Seven icons appear along the bottom of the screen.
2. Use the left and right buttons (volume buttons) to move between the icons.
The icon appears highlighted as you move through the menu.
3. To select an option, push the OK button when the icon is highlighted.
4. A new menu appears for that selected option, use the up and down buttons (channel buttons) to move through
the various settings.
Note: A red arrow appears next to the setting as you navigate through the options. A check mark appears
next to the option that you have selected.
5. Use the left and right buttons (volume buttons) and the OK button to adjust or select settings.
Note: You can select EXIT at any time to return to the main menu.
6. After you have made your selections, press the EXIT to return to the main menu.
7. To exit the TV menu, select the EXIT icon and press OK.
Selecting your TV Menu Language
1. Press Menu to enter the TV menu.
2. Select Setup.
3. In the Setup menu, select Language and select the language that you want the TV menu to appear in.

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Input Select TV Menu
The Input Select menu allows you to select the proper source based on how you have your TV diaplay and video
equipment connected. Press Input on the remote to go directly to the Input Select menu. You can also press Menu
and select Input select from the main menu.
VGA – Select when your TV display is being used as a computer monitor and you have connected the computer
using a VGA cable.
DVI – Select when your TV display is being used as a computer monitor and you have connected the computer or
when you have connected a device, such as a DVD player using the DVI cable.
TV Analog– Select when you have your analog antenna or cable TV box connected to the NTSC/Analog Cable
connector.
TV Digital– Select when you have your digital antenna or cable TV box connected to the HDTV/Digital Cable
connector.
AV1 (Composite1) – Select when you have a video device, such as a video game system, connected to the
composite connector .
AV2 (S-Video 1) — Select when you have a video device, such as a VCR, connected to the Svideo connector on the
side of the wide LCD monitor.
AV3 (Component 1) — Select when you have a video device, such as a DVD player, connected to the component
connector.
AV4 (Component 2) – Select when you have a video device, such as a DVD player, connected to the component
connector.

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AV SIDE (Composite 2) – Select when you have a video device, such as a video game system, connected to the
composite connector on the side of the TV display.
AV SIDE (S-Video 2) – Select when you have a video device, such as a VCR, connected to the S-Video connector on
the side of the TV display.
SHOW INPUTS – Show Inputs allows you to select Active or All. Active automatically searches the connected input
sources. The available input sources appear in white and input sources that are not available appear in grey. All
shows all the input sources and allows you to select all the input sources even if you do not have a device connected.
Picture Settings Menu
The picture settings menu allows you to adjust the appearance of the image including color and brightness. If you
select one of the following preset image setting, the individual setting are automatically updated.
●Movies
●Sports
●Weak Signal
●Multimedia
If you select Personal, you can adjust the individual setting, such as Brightness and Color.
The color temperature presets are: Natural: 6500K
Normal: The native panel temperature: Blue: 9300K Red: 5700K

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Audio Setting
The audio menu allows you to set the audio to best fit the type of show you are watching.
SRS Trusurround XT – Delivers virtual surround sound over two speakers from any source, which creates a wider
sound with deep rich bass.
MIDNIGHT MODE – Evens out the large volume variations between voice and action scenes. If you select one of
the following preset Equalizer Mode settings, the individual audio levels are automatically updated:
●Music
●Theater
●Voice
If you select Personal, you can adjust the individual audio levels, such as Bass and Treble.
Use Program to select Stereo, SAP, or Mono.

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Size Menu
Size allows you to adjust the appearance of the image. Use Horizontal shift to adjust the horizontal placement of
the image.
Use the following setting to adjust the aspect ratio:
STANDARD – Best selection for viewing digital HDTV, 16:9 or 22:9 DVD movies.
ZOOM – Best selection for viewing TV VCR or 4:3 DVD movie.
4:3 – Best selection for viewing TV, VCR or 4:3 DVD movie.
WIDE – Best selection for viewing digital HDTV, 16:9 or 22:9 DVD movies.
FULL SCREEN –Best selection for viewing digital HDTV, or 16:9 DVD movies.
Parental Control

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Parental Control allows you to restrict access of inappropriate channels and programs to children.
To enter the Parental Control menu, you need an access code. The first time you enter, use access code 3355.
You can set the following options to block content:
Channel Lock- Blocks selected channels
Movie Rating- Block movies based on their rating (C, PC, PC-13, R, NC-17, and X)
TV Ratings- Blocks TV shows based on their rating
Block Control- Turns on or off all your parental control settings
Setting an Access Code
After you enter the Parental Control menu for the first time, you can set your own four-digit access code. If for any
reason you lose or forget your access code, you can press channel down and volume decrease simultaneously.
1.In the Parental Control menu, select Change Code.
2 Using the number pad on the remote control, enter a new access code.
3 Select Exit.
Setup Menu
TV Menu Setup allows you to adjust the appearance of the TV menu, to change the language of the TV menu and to
restore factory settings.
Use TV Menu Hold Time to increase or decrease the amount of time the TV Menu appears. The maximum amount of
time is 60 seconds.
In the TV Menu Settings you can select TV Button lock to lock the TV Menu and the side panel buttons.
When this option is enabled, only the power button functions. To unlock the TV Menu and side panel buttons:
1. Press the Menu button on the TV.
A message appears stating that the TV is locked.
2. While the message is on the TV, press the channel up and volume increase button simultaneously.

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Seting Your Channel Setup
Your TV is set to automatically detect whether you are using an antenna or cable and then set the available channels.
Some cable providers use an older cable standard that the TV cannot automatically detect. If you have your TV
connected but can onlyview channels 5 and 6, complete thefollowing steps:
1 Press the Menu button on the remote control, or TV to enter the TV Menu.
2 Select Setup and then select Channel Setup.
3 In Channel Setup, select Antenna/Cable, and then toggle to Cable.
4 If selecting Cable does not resolve the issue, repeat steps 1 through step 3 using each available Channel Setup
option (HRC, IRC, and Antenna) until you can view all channels.
Sleep Timer
Sleep Timer allows you to select an increment of time after which the TV display turns off automatically. You can
select from 10 minutes to 3 hours.
Closed caption
In the Closed Caption menu, you can select On, Off, or Mute. If you select Mute, CC automatically displays when
you use the Mute button on the remote control.
You can choose from the following modes:
•CC1 through CC4 and TXT1 through TXT4 (CC1, CC2, and CC4 offer standard C1osed Captioning and CC3
provides closed captioning in a secondary language.)

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2.4 Connecting LCD TV Display
The LCD TV display has four standard connectors that can be used to connect devices.
Note: Before you connect your LCD TV display, ensure you have all the proper cables. Some cables may come
with the device you are connecting.
Quality Cable and Connector When to use
Good
Coaxial (RF) carries the video
and audio from one cable. The
coaxial connector is labeled,
ANT/Cable on your wide LCD
monitor.
Good
Composite carriers the video
signal through a single pin. If you
are using a composite video
connector you also need to
connect composite audio
connectors.
Better
S-Video splits the video signal
into two signals, black-and-white
and color.
Best
Component splits the video signal
into three signals, two color and
one black-and-white.