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 TRANSFOMER FOR THIS UNIT WHEN SERVICING
1
17" LCD Color Monitor Dell E177FPc
y
A
Revision List
Revision Release Date Revise histor
A00 May-26-2006 Initial Release T76CM5HKA2DFNP
A01 Jun-28-2006 Add new Model in Item 13
A02 Aug-21-2006 Add new Model in Item 13
A03 Aug-28-2006 Add new Model in Item 13 T76GM9HBA2DFNCP
A04 Sep-11-2006
A05 Sep-15-2006 Add new Model in Item 13
A06 Sep-21-2006 Add new Model in Item 13
A07 Oct-14-2006 Add new Model in Item 13
A08 Nov-14-2006 Add new Model in Item 12 T76CM9HJA2DLNCP
A09 Nov-14-2006 Add new Model in Item 13
A10 Dec.-08-2006 Add new Model in Item 13 T76SM9HBA2DZNCP
A11 May-14-2007 Add new Model in Item 12 T76AM9HMFDDDN
A12 May-20-2007 Add new Model in Item 13
A13 Jun-17-2007 Add new Model in Item 13
A14 Dec.-05-2007 Add “ECN History”
ECN No. Change Description Service Deposition Cut-in date MSR
ECN-D-EE098
ECR02756
Firmware revision change from
V1C02 to V1C03
Update the Vista FW on VFF
return MFD before 2007-1-1
2006/12/29 A02
3
17" LCD Color Monitor Dell E177FPc
Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service
procedures recommended by AOC 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 recom m ended.
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 unde rst and that the se CAUTIONS and NOTICE S ARE
NOT EXHAUSTIVE. AOC could not possibly know , evaluate and ad vise the service trade of all conceivable ways in
which service might be done or of the possible hazardous co nsequences of each way. Consequently, AOC has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by AOC mu st 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, AOC Company will be referred to as AOC.
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 Philips.
AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.
Servicer assumes all liability.
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.
Take care during handling the LCD module with ba cklight 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 wi th any sharp object s, su ch as pen cil or pen a s 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 ground ed 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.)
4
17" LCD Color Monitor Dell E177FPc
1. Monitor Specifications
Screen type Active matrix - TFT LCD
Size 430mm(17.0")
LCD Panel
Pixel pitch 0.264mm(H) x 0.264mm(V)
Response time 8ms(type)
Video R, G, B Analog Interface
Separate Sync H/V TTL
Input
H-Frequency 30kHz – 81kHz
V-Frequency 56 - 76Hz
Display Colors 16.2M Colors
Dot Clock 135MHz(Max)
Max. Resolution 1280 x 1024
Plug & Play VESA DDC
ON Mode
EPA ENERGY STAR®
Input Connector D-Sub 15pin
Input Video Signal
Active Display Area
Power Source
Environmental
Considerations
Power Saving
OFF Mode <=1W
Maximum 40W; Typical 34W
<=2W
Analog:0. 7Vp-p(standard)
75 OHM, Positive
Horizontal : 337.92mm
Vertical: 270.336mm
100 V ~ 240 V± 10 %VAC, 50 ± 3Hz, 60 ± 3Hz
Operating Temp: 5° to 35°C
Operating Humidity: 10% to 80%
Storage Temp.: -20° to 60°C
Monitor (Stand and Head): 5.2kg
Weight
Monitor Flat panel only (VESA Mode): 4.0 kg
Weight with packaging: 6.4 kg
5
17" LCD Color Monitor Dell E177FPc
2. LCD Monitor Description
The LCD monitor will contain a main board, PWPC board, keypad board, which hou se the flat panel control logic,
brightness control logic and DDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips
each voltage.
Monitor Block Diagram
CCFL Drive.
Flat Panel and
CCFL backlight
Power board
Main Board
Keyboard
RS232 Connector
For white balance
adjustment in factory
mode
AC-IN
HOST Computer
100-240V
Video signal, DDC
6
17" LCD Color Monitor Dell E177FPc
3. Operation 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 thes e 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
1Menu selection button
2Brightness Contrast / Down (-) button
3Auto-Adjust / Up (+) button
4Power button On/Off button with indicator
A
MENU
B
Brightness/Contrast Hot Key
B C
- and + buttons
C
Auto Adjust
The 'MENU' button is used to open the on-screen display (OSD), select
function icons, exit from menus and sub-menus, and to exit the OSD.
See Accessing the Menu System.
Use this button for direct access to the 'Brightness
menu.
Use these buttons to adjust (decrease/increase ranges) items in the OSD.
Use this button to activate automatic setup and adjustment. The following
dialog will appear on screen as the monitor self-adjusts to the current input:
Auto Adjust In Progress
Auto Adjustment button allows the monitor to self-adjust to the
incoming video signal. After using 'Auto Adjustment', you can further tune
' and 'Contrast' control
your monitor by using the 'Pixel Clock' and 'Phase' controls in the OSD.
D
Power Button & Indicator
The green LED indicates the monitor is on and fully functional. An amber
LED indicates DPMS power save mode.
The Power button turns the monitor on and off.
7
17" LCD Color Monitor Dell E177FPc
3.3 On Screen Menu/Display (OSD)
Direct-Access Functions
Function Adjustment Method
Auto adjustment
Brightness / Contrast
Use this button to activate automatic setup and
adjustment. The following dialog will appear on
screen as the monitor self-adjusts to the current
input:
Auto Adjust In Progress
Auto Adjustment button allows the monitor to
self-adjust to the incoming video signal. After using
'Auto Adjustment', you can further tune your monitor
by using the 'Pixel Clock' and 'Phase' controls in the
OSD.
NOTE: Auto Adjust will not occur if you press
the button while there are no active video input
signals, or attached cables
With the menu off, push button to display the
'Brightness' and 'Contrast' adjustment menu.
The 'Brightness' function adjusts the luminance of the
flat panel.
Adjust 'Brightness' first, then adjust 'Contrast' only if
further adjustment is necessary.
"+" increase 'brightness'
" - "decrease 'brightness'
The 'Contrast' function adjusts the degree of
difference between darkness and lightness on the
display screen.
"+" increase the 'contrast'
"-" decrease the 'contrast'
8
17" LCD Color Monitor Dell E177FPc
3.4 Adjusting the Picture
1. With the menu off, push the 'MENU' button to open the OSD system and display the main features menu.
A
D
2. Push the - and + buttons to move between the function icons. As you move from one icon to another, the
function name is highlighted to reflect the function or group of functions (sub-menus) represented by that
icon. See the table below for a complete list of all the functions available for the monitor.
3. Push the 'MENU' button once to activate the highlighted function; Push -/+ to select the desired parameter,
push menu to enter the slide bar. Then use the - and + buttons, according to the indicators o n the menu, to
make your changes.
4. Push the 'Menu' button once to return to the main menu to select anothe r function or push the ‘Menu’
button two or three times to exit from the OSD.
Function icons
Sub-Menu name
B
E
Main Menu
Resolution
C
Menu icon
9
17" LCD Color Monitor Dell E177FPc
r
Icon Menu Name and
Sub-menus
EXIT This is used to exit out of the 'Main menu'.
Positioning:
Horizontal
Vertical
Description
'Positioning' moves the viewing area around on the monitor screen.
When making changes to either the 'Horizontal' or 'Vertical' settings, no changes will
occur to the size of the viewing area; the image will simply be shifted in response to
your selection/change.
Minimum is '0' (-). Maximum is '100' (+).
Image settings:
Auto Adjust Even though your computer system can recognize your new flat panel monitor on
startup, the 'Auto Adjustment' function will optimize the display settings for use with
your particular setup.
NOTE: In most cases, 'Auto Adjust' will produce the best image for your
configuration; this function can be directly access via Auto Adjustment
hotkey.
Pixel Clock The 'Phase' and 'Pixel Clock' adjustments allow you to more closely adjust your monito
to your preference. These settings are accessed through the main OSD menu, by
selecting 'Image Settings'.
Use the - and + buttons to adjust away interference. Minimum: 0 ~ Maximum: 100
10
17" LCD Color Monitor Dell E177FPc
Phase If satisfactory results are not obtained using the 'Phase' adjustment, use the 'Pixel
Clock' adjustment and then use 'Phase' again.
NOTE: This function may change the wid t h of the display image. Use the
'Horizontal' function of the 'Position' menu to center the display image on the
screen.
Color Settings: 'Color Settings' adjusts the color temperature and saturation.
Normal Preset 'Normal Preset' is selected to obtain the default (factory) color settings.
Blue Preset 'Blue Preset' is selected to obtain a bluish tint. This color setting i s typically used for text
based applications (Spre adsheets, Programming, Text Editors etc.).
Red Preset 'Red Preset' is selected to obtain a redder tint. This color setting is typically used for
color intensive applications (Photograph Image Editing, Multimedia, Movies etc.).
11
17" LCD Color Monitor Dell E177FPc
User Preset 'User Preset': Use the plus and minus buttons to increase or decrease each of the
three colors (R, G, B) independently, in single digit increments, from '0' to '100'.
NOTE: 'Color temperature' is a measure of the 'warmth' of the image colors
(red/green/blue). The two available presets ('Blue' and 'Red') favor blue and red
accordingly. Select each one to see how each range suits your eye; or utilize the
'User Preset' option to customize the color settings to your exact choice.
OSD Settings: Each time the OSD opens, it displays in the same location on the screen. 'OSD
Settings' (horizontal/vertical) provides control over this location.
Horizontal Position - and + buttons move OS D to the left and right.
Vertical Positi on - and + buttons move OSD down and up.
OSD Hold Time: The OSD stays active for as long as it is in use.
'OSD Hold Time': Sets the length of time the OSD will remain active after the last time
you pressed a button.
Use the - and + buttons to adjust the slider in 5 second increments, from 5 to 60
seconds.
NOTE: Default 'OSD hold time' is 20 seconds.
OSD Lock 'OSD Lock': Controls user access to adjustments. When 'Yes' (+) is selected, no user
adjustments are allowed. All buttons are locked except the menu button.
All buttons can be locked or unlocked press the 'Menu' button for over 15 seconds. to
unlock the OSD 'Menu'.
NOTE: When the OSD is locked, pressing the 'Menu' button will take the user
directly to the 'OSD settings' menu, with 'OSD Lock' preselected on entry . Select
'No'(-) to unlock and allow user access to all applicable settings.
12
17" LCD Color Monitor Dell E177FPc
Language: Language sets the OSD to display in one of five languages (English, Español,
Français, Deutsch, Japanese ).
NOTE: The language chosen affects only the language of the OSD. It has no
effect on any software runn ing on the computer.
Factory Reset: 'Factory Reset' returns the settings to the factory preset values for the selected group
of functions. 'Exit' is used to exit out of 'Factory Reset' menu.
For 'All settings', all user adjustable settings are reset at one time except 'Language
settings'.
OSD Warning Messages
A warning message may appear on the screen indicating that the monitor is out of sync.
Cannot Display This Video Mode
Optimum resolution 1280 x1024 60Hz
This means that the monitor cannot synchronize with the signal that it is receiving from the computer. Either the
signal is too high or too low for the monitor to use. See Specifications for the Horizontal and Vertical frequency
ranges addressable by this monitor. Recommended mode is 1280 X 1024 @ 60Hz.
NOTE: The floating 'Dell - self-test Feature Check' dialog will appear on-screen i f the monitor cannot sense a
video signal.
Occasionally, no warning message appears, but the screen is blank. This could also indicate that the monitor is not
synchronizing with the computer. See Troublesh ooting for more information.
13
17" LCD Color Monitor Dell E177FPc
4. Input/Output Specification
4.1 Input Signal Connector
Pin No. Description Pin No.Description
1. Red Video 9. Computer 5V/3.3V
2. Green Video 10. GND-sync
3. Blue Video 11. GND
4. GND 12. DDC-Serial Data
5. Self-test 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
VGA Connector layout
15
6
1115
10
4.2 Factory Preset Display Modes
VESA MODES
Horizontal Vertical
Mode Resolution Total
640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175
VGA
XGA
SXGA
640x480@75Hz 840 x 500 37.500 N 75.00 N 31.500
800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000
800x600@75Hz 1056x625 46.875 P 75.000 P 49.500
1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000
1024x768@75Hz 1312x800 60.023 P 75.029 P 78.750
1152x864@75Hz 1600x900 67.500 P 75.000 P 108.00
1280x1024@60Hz 1688x1066 64.000 P 60.000 P 108.00
Nominal
Frequency
+/- 0.5kHz
Sync
Polarit
y
Nominal
Freq.+/- 1Hz
Sync
Polarity
Nominal
Pixel Clock (MHz)
1280x1024@75Hz 1688x1066 79.976 P 75.025 P 135.00
IBM MODES
Nominal
Mode Resolution Total
DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322
Frequency
+/- 0.5kHz
14
Sync
Polarit
y
Nominal
Freq. +/- 1
Hz
Sync
Polarity
Nominal Pixel
Clock (MHz)
17" LCD Color Monitor Dell E177FPc
4.3 Power Supply Requirements
A/C Line voltage range 100 V ~ 240 V± 10 %
A/C Line frequency range 50 ± 3Hz, 60 ± 3Hz
Input Voltage transients 280 volts AC for 10 sec @40℃
Current 0.6A max. at 100V, 0.35A max. at 240 V
< 60A peak at 240 VAC and cold starting
Peak surge current
< 30A peak a t 120VAC and cold starting
Leakage current < 3.5mA
No advance effects (no loss of information or defect)
Power line surge
with a maximum of 1 half-wave missing per second
15
17" LCD Color Monitor Dell E177FPc
4.4 Panel Specification
4.4.1 Display Characteristics
For LM170E01-TLB3 panel
For LM170E01-TLB4 panel
For CLAA170EA07Q Rev.373/3A3 panel
16
17" LCD Color Monitor Dell E177FPc
Optical Characteristics
For LM170E01- TLB3/TLB4 panel
17
17" LCD Color Monitor Dell E177FPc
For CLAA170EA07Q Rev.373/3A3 panel
18
17" LCD Color Monitor Dell E177FPc
4.5 Definition Of Pixel Defects
For LM170E01- TLB3/TLB4 panel
Dot Defect
Bright Dot
Dots (sub-pixels), which appeared brightly in the screen when the LCM displayed with dark pattern.
- R, G or B 1 dot --------------------------------- 0 Max
- Adjacent 2 dots -------------------------------- 0 Max
- Total amount of Bright dots -------------------- 0 Max
- Minimum distance of Bright dots --------------- NA
Dark Dot
Dots (sub-pixels) which appeared darkly in the screen when the LCM displayed with bright pattern.
- 1 dot -------------------------------------------- 4 Max
- Adjacent 2 dots -------------------------------- 2 Max
- Total amount of Dark dot ---------------------- 4 Max
- Minimum distance of Dark dots --------------- 15mm
Total amount of Dot Defects -------------------- 5 Max (Combination)
Note) a. Every dot herein means Sub-Pixel (Each Red, Green, or Blue Color)
b. Bright dot
- Red or Blue dots smaller than half size of sub-pixel are not counted as a defect dots.
- Green dots smaller than 1 / 3 size of sub-pixel are not counted as a defect dots.
c. Dark dots smaller than half size of sub-pixel are not counted as a defect dots.
Polarizer Defects
Where, W: Width
L: Length
D: Average diameter =(a+b)/2
a. Extraneous substances, which can be wiped out, like Finger Print, Particles, are not considered as a defect.
b. Defects which are on the Black Matrix (outside of Active Area) are not considered as a defect.
19
17" LCD Color Monitor Dell E177FPc
Foreign Material
Where, W: Width
L: Length
D: Average diameter =(a+b)/2
Line Defect
All kinds of line defects such as vertical, horizontal or cross are not allowed.
Bezel Appearance
Scratches, minor bents, stain, particles on the Bezel frame are not considered as a defect.
others
Issues, which are not defined in these criteria, shall be discussed with both parties, Customer and Supplier, for
better solution.
20
17" LCD Color Monitor Dell E177FPc
For CLAA170EA07Q Rev.373/3A3 panel
21
17" LCD Color Monitor Dell E177FPc
22
17" LCD Color Monitor Dell E177FPc
5. Block Diagram
5.1 Monitor Exploded View
23
17" LCD Color Monitor Dell E177FPc
5.2 Software Flow Chart
1
2
4
Y
3
N
5
Y
6
7
9
10
Y
N
12
N
N
Y
N
11
13
8
N
Y
14
18
N
19
Y
24
15
17
Y
N
16
Y
17" LCD Color Monitor Dell E177FPc
1) MCU Initializes.
2) Is the EEprom blank?
3) Program the EEprom by default values.
4) Get the PWM value of brightness from EEprom.
5) Is the power key pressed?
6) Clear all global flags.
7) Are the AUT O and SELECT keys pressed?
8) Enter factory mode.
9) Save the power key status into EEprom.
Turn on the LED and set it to green color. Scalar
initializes.
10) In standby mode?
11) Update the lifetime of back light.
12) Check the analog port, are there any signals coming?
13) Does the scalar send out an interrupt request?
14) Wake up the scalar.
15) Are there any signals coming from analog port?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the message
disappears.
17) Program the scalar to be able to show the coming mode.
18) Process the OSD display.
19) Read the keyboard. Is the power key pressed?
25
17" LCD Color Monitor Dell E177FPc
5.3 Electrical Block Diagram
5.3.1 Main Board
Flash Memory
SST25VF010A-33- 4C-SAE
(U402)
RXD
TXD
LCD Interface
(CN101)
Scalar TSUM16AL-LF
(Include MCU, ADC, OSD)
(U401)
R
G
B
H
DB15_SDA,
V
DB15_SCL
OSD Control Interface
(CN403)
D-Sub
EEPROM M24C02
Connector
(U404)
(CN405)
26
17" LCD Color Monitor Dell E177FPc
5.3.2 Inverter/Power Board
27
17" LCD Color Monitor Dell E177FPc
6. Schematic Diagram
6.1 Main Board
TSUM16AL SCHEMATIC
XGA/SXGA
B3
+5V
PC5V
VCC3.3
+5V
PC5V
VCC3.3
RIN
GNDR
GIN
GNDG
SOG
BIN
GNDB
HSYNC
VSYNC
DDCA_SDA
DDCA_SCL
DET_VGA
DDC_WP
B4
RIN
GNDR
GIN
GNDG
SOG
BIN
GNDB
HSYNC
VSYNC
DDCA_SDA
DDCA_SCL
DET_VGA
DDC_WP
LVDS OUTPUT
VCC1.8
VCC1.8
Vcc3.3
+5V
VCC3.3
+5V
3.INPUT
B5
A[0..9]
VCC1.8
+5VVCC3.3
PC5V
B2
PC5V
VCC1.8
+5V
VCC3.3
on_BACKLIGHT
on_Panel
VCTRL
Adj_BACKLIGHT
VLCD
VLCD
on_BACKLIGHT
on_Panel
VCTRL
Adj_BACKLIGHT
A[0..9]
B[0..9]
B[0..9]
A[0..9]
B[0..9]
VLCD
VLCD
2.POWER
4.SCALER
5.PANEL INTERFACE
Title
AOC TSUM16AL
SizeDocument NumberRev
A
Date:Sheet
28
TOP
of
15Tuesday, May 16, 2006
A
17" LCD Color Monitor Dell E177FPc
+5V
+5V3,4
C709
0.1uF/16V
BL_ADJ(DC)
0V ~ 3.3V
0V ~ 5V
BL_ADJ
P W M
D C
on_Panel4
R705
47
4K7
+5V
R705
4.7K
4.7K
+
C708
N.C
1uF
GND
1
GND
3
5
GND
7
+5V
9
GND
11
C710
100uF/16V
R706
C708
1UF
0
1UF
X
+5V
R717
10K 1/16W
R725 4.7K 1/16W
C718
0.1uF/16V
CN701
CONN
R701
X
1K
R707
X
4.7K
2
4
6
8
10
GND
12
Q701
X
MMBT3904
+5V
R714
10K 1/16W
51K 1/16W
Q706
PMBS3904
BL_ON
BL_ADJ
GND
+5V
R723
C715
0.1uF/16V
C711
NC
PMBS3904
VLCD
Q704
AO3401L
+
+5V
Q703
C717
10uF/16V
0.1uF/16V
R708
10K 1/16W
4.7K 1/16W
VLCD5
C708
R710NC
R712
+5V
R727
10K 1/16W
R705
4.7K 1/16W
PMBS3904
VCC3.3
R721
0 1/16W
Q701
R722
NC
R701
1K 1/16W
R706NC
R707
4.7K 1/16W
+5V
R711
10K 1/16W
+5V3,4
on_BACKLIGHT 4
D704
SSM12L
Adj_BACKLIGHT 4
+5V
+5V
2
C705
1uF/16V
PC5V
R709
NC
1
3
C713
0.1uF/16V
R702
51 1/16W
VCC3.3
+
R703
2K 1/16W
VCC1.8
+
D702
LL4148
R704
100 1/16W
PC5V3
C702
4.7uF/16V
D701
C
Q702
CHT2907
E
LL4148
B
D703(BAT54) Vf=0.53V (worst cauae) when
If=100mA. So when system power off, the
system loading is about 32mA, it is
safe.
Check R725 whether there is a voltage of 3.3V, when
the power is on
If Q704, Q706 is broken or
CN101 abnormally soldered
Replace PANEL or FPC cable
OK
OK
NG
NG
X401 oscillating waveform is
normal
OK
NG
Replace U401
Replace Q704, Q706 or re-solder CN101
CheckX401, C427,
C428
45
17" LCD Color Monitor Dell E177FPc
Video abnormal
If U401 output voltage is normal
(Test pins of CN101 directly)
OK
NG
If U401 output voltage is normal when disconnect
FPC cable
NG
OK
Replace PANEL or FPC cable
Replace U401
46
17" LCD Color Monitor Dell E177FPc
No backlight
If pin1 of IC201 has saw tooth wave
NG
OK
Connect PIN15 of IC201 to the
ground If the picture is normal
NG
OK
If Q206/Q207 waveforms are normal
NG
OK
Check C209, flyback circuit and lamp
Check C207 and IC201
Check ZD201/IC201 etc
Replace Q206/Q207
OSD is unstable or not working
47
NG
17" LCD Color Monitor Dell E177FPc
48
17" LCD Color Monitor Dell E177FPc
9. White balance, Luminance adjustment
Approximately 2 Hours should be allowed for warm up before proceeding White-Balance
adjustment.
Before started adjust white balance, please setting the Chroma-7120 MEM. Channel 3 to 65000K colors, MEM.
Channel 4 to 9300
±20 cd/m
2
, 65000K parameter is x =313±28, y=329±28, Y = 180 ±20 cd/m2, and 57000K parameter is x = 328 ±28, y
= 344 ±28, Y = 180 ±20 cd/m
How to setting MEM.channel you can reference to chroma 7120 user guide or simple use “ SC” key and “ NEXT”
key to modify xyY value and use “ID” key to modify the TEXT description Following is the procedure to do
white-balance adjust.
Press MENU and AUT O-ADJUST button during press Power button will activate the factory mode,
0
K colors, MEM. Channel 9 to 57000K (our 93000K parameter is x=283±28, y=297±28, Y = 175
2
)
Gain adjustment:
Move cursor to “-Factory Setting-” and press MENU key to enter this sub-menu.
Move cursor to “ Factory” and press MENU key.
Move cursor to “ Auto Level” and press M ENU key to a djust Gai n and Of f set auto matically;
0
a. Adjust sRGB (6500
K) color-temperature
1. Switch the chroma-7120 to RGB-mode (with press “MODE” button)
2. Switch the MEM.channel to Channel 3 (with up or down arrow on chroma 7120)
3.The LCD-indicator on chroma 7120 will show x = 313 ±28, y = 329 ±28, Y = 180 ±20 cd/m
4. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100
5. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100
6. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100
7. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2
0
b. Adjust Color1 (9300
K) color-temperature
8. Switch the chroma-7120 to RGB-mode (with press “MODE” button)
2
9. Switch the MEM.channel to Channel 4 (with up or down arrow on chroma 7120)
2
10. The LCD-indicator on chroma 7120 will show x = 283 ±28, y = 297 ±28, Y = 175 ±20 cd/m
1 1. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100
12. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100
13. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100
14. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2
0
c. Adjust Color2 (5700
K) color-temperature
15. Switch the chroma-7120 to RGB-mode (with press “MODE” button)
16. Switch the MEM.channel to Channel 9 (with up or down arrow on chroma 7120)
2
17. The LCD-indicator on chroma 7120 will show x = 328 ±28, y = 344 ±28, Y = 180 ±20 cd/m
18. Adjust the RED on OS D window until chroma 7120 indicator reached the value R=100
19. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100
49
17" LCD Color Monitor Dell E177FPc
20. Adjust the BLUE on OS D, until chroma 7120 indicator reached B=100
21. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2
22. Move cursor to “ Exit/Save” sub-menu and press MENU key to save adjust value and exit.
Turn the POWER-button off to on to quit from factory mode.
Max Brightness measurement:
a. Switch to the full white pattern, in user mode main menu:
1. Set <Color Settings> Red, Green, and Blue to the max.
2. Set <Brightness> Brightness, Contrast to the max.
b. The Minimum brightness is 200cd/m2 ±20.
50
17" LCD Color Monitor Dell E177FPc
10. ISP Instruction
Configure and procedure
It is a windows-based program, which cannot be run in MS-DOS.
System and equipment requirements
(1). An i486 (or above) personal computer or computer or compatible.
(2). Microsoft operation system Window 95/98/2000/XP.
(3). ISP Tool: ISP board/printer cable/VGA cable as shown in Fig.1
Link to Dell
VGA connector
Fig.1
Connect to PC LPT
(4). ISP software checklist
(5). Update the firmware
Step 1: Double click the ISP_Tool v3.772.exe icon and click Connect, bring up Fig.2
Fig.2
51
17" LCD Color Monitor Dell E177FPc
Step 2: Click OK and click Read, select program Bin file, bring up Fig.3
Fig.3
52
17" LCD Color Monitor Dell E177FPc
Step3: Click open and OK, bring u p Fig.4 and Fig.5
Fig.4
Fig.5
53
17" LCD Color Monitor Dell E177FPc
Step 4: Click Auto and Run, bring up Fig.6
Step 5: When appear Verify OK, writer finished as shown Fig.7
Fig.6
Fig.7
54
17" LCD Color Monitor Dell E177FPc
11. Check List
1) After replacing LCD Main board and panel, Check if white-balance is within the specs, then
re-writing DDC is necessary.
The white-balance value for each common color temperature:
9300 parameter is x=283±28, y=297±28, Y = 180 ±10 cd/m
6500 parameter is x =313±28, y=329±28, Y = 180 ±10 cd/m
5700 parameter is x = 328 ±28, y = 344 ±28, Y = 180 ±10 cd/m
The color temperature value above must be up to the situation of x<y. The value of Y should be confirmed
according to different customers. 15” LCD is commonly 180±20cd /cm
larger than 200cd/cm
2
(Center). The exact brightness values are confirmed by the checking-regulations of
different customers and different models.
2) Steps of white-balance adjustment for LCD:(Take 17” AOC LCD LM724 for example)
2. First connect the instruments together and turn on the LCD power, then warm up for 30 minutes under full
white screen mode. First press the “Reset” key in the menu to recover factory set as following.
2
,
2
,
2
)
2
(Center)and 17” LCD is required to be
Set Chroma2325 at round-windows mode and make the detecting-head of Chroma7120 aim at the cross
in the middle, the distance between the detecting-head and the cro ss is 20cm.
3. Set Chroma2325(BGA265A)to be T144(1280*1024/60HZ)an d P105 of full white screen. Test if the
white-balance value is within the specs. Please follow the steps below to adjust if it is beyond the specs.
4. Cut the power. Then press MENU key and re-plug power cable at the same time to enter into the factory
mode. See the following pictures.
Select ”F",then Sele
t AUTO LEVEL item.
5. Test white-balance again after Auto Level. Adjustment with hand is necessary if it is beyond the specs.
6. Select 7x00 item to adjust cool color-temperature and select 6x00 to adjust warm color- temperature. It can
reach to the best effect through adjusting R/G/B value if it inclines to green or blue.
55
17" LCD Color Monitor Dell E177FPc
7. Select Exit to the upper menu after completing the adjustment. Then press POWER OFF to exit and save it.
3) Steps for writing DDC:
1. Employ PC, and connect the DDC-writing instrument and the instrument that is ready for writing into DDC to
the power of 12V. Connect the signal cable of the latter to D-USB or DVI of DDC-writing instrument (The
data-writing of monitor needs transfer-interface) and link the DDC-writing instrument with PC through printer
interface. (See the schematic picture below)
(Connection for VGA) (Connection for DVI)
2. Seek the document with the expanded name of .BAT in DDC file of this model. It appears the indication of
“Input Serial No.:"after dual-click the document to be ready for DDC-writing.
3. Input the serial number of the product (For instance: AOC LM725 is 13 bits), and then press ENTER to start
writing
4. Check the indication of DDC-writing program at the end. When you see the picture as the schematic picture
above, the“Data compare OK!” Means being written well and that’s the end. Please check if the
Manufacturer Name, Vendor Assigned Code, Monitor Name, Serial Number, Week of Manufacture, Year of
Manufacture are right. It will appear “Data compare error! ” To indicate failure if the DDC-writing doesn’t
perform well. Please check the power resource and the connection of the signal cable, then return to step 3
by pressing ENTER and re-do it.
5. You can exit the program by pressing Ctrl plus C, and then cut the sig nal cable and the power.
6. The following picture is taking AOC LM725 EDID for example.
56
17" LCD Color Monitor Dell E177FPc
Notes:
1. Make sure the system time of PC is in accordance with the real time before writing.
2. The schematic picture is just as an example for description; the exact content of the DDC is dependent on
the serial number of the BARCORD of this model.
3. Data DDC-writing needs a transfer interface.
Instruction:DDC-writing needs 4 files:
1. Barcode.txt (Supply Barcode length and flow number)
2. *.EXE (DDC-writing program)
3. WR.bat (Group order file for cycling utilization of *EXE, and dual-click this file when perform
DDC-writing)
4. W.dat (The content with 128 bits of DDC)
57
17" LCD Color Monitor Dell E177FPc
12. BOM List
T76CM5HKA2DFNP
Location Part No. Description
011G6080 1 SPACER SUPPORT
015G6261 1 BRACKET
023G3178700 3A logo
026G 800700 6A S/N LABEL
033G4884ASN L BUTTON FUNC
033G4885 VH L BUTTON RELEASE
034G1611AVH B BEZEL
034G1612 VH B 30 BACK COVER
040G 581700 3A6813 CARTON LABEL
044G3231 12 A EVA WASHER
044G3586 3EPE EPE
044G3586BRO 2 PAPER-BLOCKED
044G3770BRO 1 PAPER-BLOCKED
044G6000 4 6B PAPER BOARD
044G600210A PAPER BOARD
044G9003 71 CORNER PAPER
044G9003147 CORNER PAPER
044GSLIP10018A PLASTIC SLIP SHEET
045G 88606 8 PE BAG FOR BASE
045G 88607DE8 PE BAG FOR MONITOR
052G 1186 SMALL TAPE
052G6020 2DE9 FILM PROTECT
052G6022 1500 SMALL TAPE
052G6025 11848 MYLAR FOR POWER BOARD
052G6025 11923 MYLAR FOR SEFETY
085G 702 1 SHIELD WIRE
085G 703 1 SHIELD LAMP
E089A 089G 728LAA 2D SIGNAL CABLE
E089B 089G402A18NISD POWER CORD
CN201 033G8021 2D AC CONN.2P R/A 87210-0236 DIP BY
CN202 033G8021 2D AC CONN.2P R/A 87210-0236 DIP BY
CN203 033G8021 2D AC CONN.2P R/A 87210-0236 DIP BY
CN204 033G8021 2D AC CONN.2P R/A 87210-0236 DIP BY
CN901 033G8029 3A H B2P3S-VH
C01 065G0603104 12 CER2 0603 X7R 16V 100N PM10 R
SW04 077G 605 1 AL GP SMD SWITCH
SW03 077G 605 1 AL GP SMD SWITCH
SW02 077G 605 1 AL GP SMD SWITCH
SW01 077G 605 1 AL GP SMD SWITCH
LED01 081G 14501 KT CHIP LED
ZD06 093G 39P599 T MM3Z5V6B
ZD05 093G 39P599 T MM3Z5V6B
ZD04 093G 39P599 T MM3Z5V6B
ZD03 093G 39P599 T MM3Z5V6B
ZD02 093G 39P599 T MM3Z5V6B
ZD01 093G 39P599 T MM3Z5V6B
040G 581700 3A6813 CARTON LABEL
044G3231 12 A EVA WASHER
044G3586 3EPE EPE
044G3586BRO 2 PAPER-BLOCKED
044G3770BRO 1 PAPER-BLOCKED
045G 88606 8 PE BAG FOR BASE
045G 88607DE8 PE BAG FOR MONITOR
052G 1186 SMALL TAPE
052G6020 2DE9 FILM PROTECT
052G6022 1500 SMALL TAPE
052G6025 11848 MYLAR FOR POWER BOARD
052G6025 11923 MYLAR FOR SEFETY
085G 702 1 SHIELD WIRE
085G 703 1 SHIELD LAMP
E089A 089G 728GAA 2D SIGNAL CABLE
E089A 089G 728LAA 2D SIGNAL CABLE
C01 065G0603104 12 CER2 0603 X7R 16V 100N P
SW04 077G 605 1 AL GP SMD SWITCH
SW03 077G 605 1 AL GP SMD SWITCH
SW02 077G 605 1 AL GP SMD SWITCH
SW01 077G 605 1 AL GP SMD SWITCH
LED01 081G 14501 GP LED GPTD1210YGC3-HB GUANGPU
LED01 081G 14501 KT CHIP LED
ZD06 093G 39P599 T MM3Z5V6B
ZD05 093G 39P599 T MM3Z5V6B
75
17" LCD Color Monitor Dell E177FPc
ZD04 093G 39P599 T MM3Z5V6B
ZD03 093G 39P599 T MM3Z5V6B
ZD02 093G 39P599 T MM3Z5V6B
ZD01 093G 39P599 T MM3Z5V6B
ZD04 093G 39S 34 T UDZS5.6B
ZD03 093G 39S 34 T UDZS5.6B
ZD02 093G 39S 34 T UDZS5.6B
ZD01 093G 39S 34 T UDZS5.6B
ZD05 093G 39S 34 T UDZS5.6B
ZD06 093G 39S 34 T UDZS5.6B
CN204 033G8021 2D U 3.5mm WAFER
CN203 033G8021 2D U 3.5mm WAFER
CN202 033G8021 2D U 3.5mm WAFER
CN201 033G8021 2D U 3.5mm WAFER
CN204 033G8021 2D AC CONN.2P R/A 87210-0236 D
CN203 033G8021 2D AC CONN.2P R/A 87210-0236 D
CN202 033G8021 2D AC CONN.2P R/A 87210-0236 D
CN201 033G8021 2D AC CONN.2P R/A 87210-0236 D
CN901 033G8029 3A H B2P3S-VH
040G 45762412B CBPC LABEL
052G6025 11935 MYLAR FOR PANEL
L902 073G 174 65 H LINE FILTER
L902 073G 174 65 LS LINE FILTER BY LISHIN
L904 073G 253 91 H CHOKE COIL
L903 073G 253 91 H CHOKE COIL
L904 073G 253 91 L CHOKE BY LI TA
L903 073G 253 91 L CHOKE BY LI TA
L903 073G 253 91 T CHOKE
L904 073G 253 91 T CHOKE
L903 073G 253 91 LS CHOKE BY LI SHIN
L904 073G 253 91 LS CHOKE BY LI SHIN
L201 073G 253515 L CHOKE COIL
L201 073G 253515 S CHOLE
L201 073G 253515 Y CHOKE
L901 073L 174 50 HH LINE FITER
L901 073L 174 50 LH LINE FILTER
011G6080 1 SPACER SUPPORT
023G3178700 3A LOGO
026G 800700 6A S/N LABEL
040G 581700 3A6813 CARTON LABEL
044G3231 12 A EVA WASHER
044G3586 3EPE EPE
044G6002834 2A GP PAPER BOARD
044G9003210 CORNER PAPER
052G 1186 SMALL TAPE
82
17" LCD Color Monitor Dell E177FPc
052G6022 1500 SMALL TAPE
052G6025 11848 MYLAR FOR POWER BOARD
085G 702 1 SHIELD WIRE
715G1565 2 2 MAIN BOARD
KEPC6QB2 KEY BOARD
052G6022 20 SMALL TAPE
SW1 077G 500 4 CJ DOME SWITCH 4PCS ARRAY
CN1 089G176J 8519 FFC CABLE
LED01 081G 14501 GP LED GPTD1210YGC3-HB GUANGPU
715G1564 1 3 KEY BOARD
PWPC742AD8P POWERG1492-1-DEL-7A-2-070413 VER:A00
CN801 033G8021 2E AC WAFER
CN802 033G8021 2E AC WAFER
CN803 033G8021 2E AC WAFER
CN804 033G8021 2E AC WAFER
CN901 033G8029 3A H B2P3S-VH
E.C 105℃ CAP 470UF M 25V ED SERIES
E.C 105℃ CAP 470UF M 25V ED SERIES
E.C 105℃ CAP 470UF M 25V ED SERIES
CAP 105℃ 680UF M 25V
CAP 105℃ 680UF M 25V
CAP 105℃ 680UF M 25V
Diversity of T76GM5HKA2DFNP compared with T76CM5HKA2DFNP
Location Part No. for TPV Description
E089B 089G 728LAA 2D SIGNAL CABLE
E089A 089G402A18NISD POWER CORD
750GLG70E1T31Z D LPL 17" TLB3 ZBD PANEL
CBPC780KG4DLP MAIN BOARD VER:A00,V6C08
PWPC1742LGD2P POWER BOARD VER:A00
015G8187 1 MAIN FRAME-CPT/LPL
AIC780KG4DLP MAIN BOARD
Diversity of T76GM5HKA2DZNP compared with T76CM5HKA2DFNP
Location Part No. for TPV Description
089G 728LAA 2D SIGNAL CABLE
089G402A18NISD POWER CORD
750GLG70E1T41Z D LPL 17" TLB4 ZBD PANEL
CBPC780KG4DLP MAIN BOARD VER:A00,V6C08
PWPC1742LGD2P POWER BOARD VER:A00
015G8187 1 MAIN FRAME-CPT/LPL
AIC780KG4DLP MAIN BOARD
Q207 057G 761500 BTD1805D3
Q206 057G 761500 BTD1805D3
C213 065G 3J1506ET 15PF 5% CC45SL 3KV TDK
C212 065G 3J1506ET 15PF 5% CC45SL 3KV TDK
C211 065G 3J1806ET 18PF 5% SL3KV TDK
C214 065G 3J1806ET 18PF 5% SL3KV TDK
L903 073G 253 91 L CHOKE BY LI TA
L904 073G 253 91 L CHOKE BY LI TA
L201 073G 253515 S CHOLE
R450 061L0603103 CHIPR 10K OHM +-5% 1/16W
R451 061L0603103 CHIPR 10K OHM +-5% 1/16W
R207 061L0805103 CHIPR 10K OHM +-5% 1/10W
94
17" LCD Color Monitor Dell E177FPc
Diversity of T76GM9HKA2DFNCP compared with T76CM5HKA2DFNP
Location Part No. for TPV Description
E089B 089G 728LAA 2D SIGNAL CABLE
E089A 089G402A18NISD POWER CORD
750GLG70E1T31D D LPL 17" DELL CONSIGN PANEL
CBPC780KG4DLP MAIN BOARD VER:A00,V6C08
PWPC1742LGD2P POWER BOARD VER:A00
015G8187 1 MAIN FRAME-CPT/LPL
AIC780KG4DLP MAIN BOARD
L902 073G 174 65 H LINE FILTER
L902 073G 174 65 LS LINE FILTER BY LISHIN
L903 073G 253 91 L CHOKE BY LI TA
L904 073G 253 91 L CHOKE BY LI TA
L903 073G 253 91 T CHOKE
L903 073G 253 91 LS CHOKE BY LI SHIN
L904 073G 253 91 LS CHOKE BY LI SHIN
L201 073G 253515 L CHOKE COIL
96
17" LCD Color Monitor Dell E177FPc
L201 073G 253515 S CHOLE
L901 073L 174 50 LH LINE FILTER
C926 067G215Y4713NV KY16VB470M-CC3 8*15MM
L902 073G 174 65 H LINE FILTER
L902 073G 174 65 LS LINE FILTER BY LISHIN
L903 073G 253 91 L CHOKE BY LI TA
L904 073G 253 91 L CHOKE BY LI TA
L903 073G 253 91 T CHOKE
L903 073G 253 91 LS CHOKE BY LI SHIN
L904 073G 253 91 LS CHOKE BY LI SHIN
L201 073G 253515 L CHOKE COIL
99
17" LCD Color Monitor Dell E177FPc
L201 073G 253515 S CHOLE
L901 073L 174 50 LH LINE FILTER