Dell E157FPc Service Manual

15" LCD Color Monitor Dell E157FPc

1

Service

Service

Service

Horizontal Frequency

30 kHz to 63 kHz

TABLE OF CONTENTS

Description Page Description Page

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.

5.2.Software Flow Chart………..………………....….......20

5.3.Electrical Block Diagram………………..…..….......22

6. Mechanical Instruction..……….……….……………….24

7.Schematic Diagram………..................................….....29

7.1Main Board......………......................................29

7.2 Power Board……..…….……....................................34

8.PCB Layout..……...………….......................................36

8.1.Main Board……………..…........................................36

8.2.Power Board……………........................................38

8.3.Key Board………………….....................................40

9.Maintainability………….......................................41

9.1.Equipments and Tools Requirement..…….…...........41

9.2.Trouble Shooting………………….............................42

10.White-Balance, Luminance adjustment...………......48

11.ISP Instruction…………….…….................................50

12.Check List……………………………………………...56

13.BOM List………….....................................................59

14.Different Parts List……………………...……………...82

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

Table Of Contents.......…….................……......... ..…........1

Revision List.….........................………................……......2

Important Safety Notice.….……….…..................……......3

1.Monitor Specifications.....…........................………........4

2.LCD Monitor Description…………………………….......5

3.Operation Instructions……………...............……...........6

3.1.General Instructions…………………………………….6

3.2.Control Buttons……………...............……...............6

3.3.On Screen Menu/Display (OSD)….......….……..........7

3.4 Adjusting the Picture...........…………….........………..8

4.Input/Output Specification.............……………........…13

4.1.Input Signal Connector............………….................13

4.2.Factory Preset Display Modes...…..…......................13

4.3.Power Supply Requirements..........……...................14

4.4.Panel Specification…….....……………..................15

4.5.Definition of Pixel Defects…………...............……….16

5.Block Diagram…….…...................…………................19

5.1.Monitor Exploded View…………….…………............19

15" LCD Color Monitor Dell E157FPc

2

Revision List

Revision Release Date Revise history TPV model

A00 Jun.-26-2006 Initial Release T56SGDHKDQDZNP

A01 Jul.-07-2006 Add TPV model in Item 13 T56CGDHKDQDFNCP

T56AGDHKDQDFNCP

A02 Jul.-21-2006 Add TPV model in Item 13

T56GGDHKDQDFNCP
T56SGDHKDQDZNCP
T56CGDHLDQDFNCP

A03 Aug.-17-2006 Add TPV model in Item 13

T56AGDHMDQDLNCP

A04 Aug.-23-2006 Add TPV model in Item 13 T56SGDHMDQDRNCP

T56SGDHMDQDZNCP

A05 Sep-1 1-200 6 Add TPV model in Item 13

T56AGDHBDQDFNCP
T56CGDHMDQDLNCP
T56GGDHBDQDFNCP

A06 Oct-14-2006 Add TPV model in Item 13

T56AGDHMDQDFNCP
T56GGDHMDQDLNCP

A07 Nov.-14-2006

Add TPV model in Item 12 and

item13

T56SGDHBDQDZNCP
T56GGDHMDQDFNCP

A08 Dec.-08-2006 Add TPV model in Item13

T56CGDHMDQDFNCP

A09 Mar.-30-2007

Add Mechanical Instruction in

item 6

15" LCD Color Monitor Dell E157FPc

3

Important Safety Notice

Proper service and repair is important to the safe, reliable operatio n of all AOC Company Equipment. The service
procedures recommended by AOC and described in this service manual are effective methods of performin g
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 carefull y 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. AOC could not possibly know , evaluate and advise the servi ce trade of all conceivable ways in
which service might be done or of the possible hazardous consequ ences 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 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, 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 AOC.
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 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 wi th any sharp obje ct s, such as pen cil or pen a s this ma y 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.)

15" LCD Color Monitor Dell E157FPc

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1. Monitor Specifications

Screen type Active matrix - TFT LCD

Panel Type L TM150XO-L01

Size 380mm(15.0")

Pixel pitch 0.297mm(H) x 0.297mm(V)

Viewable angle 150(H) / 135(V) (type)

LCD Panel

Response time 16ms(type)

Video R, G, B Analog Interface

Separate Sync H/V TTL

H-Frequency 30kHz – 63kHz

Input

V-Frequency 55 - 75Hz

Display Colors 16.2M

Dot Clock 80MHz (Max.)

Max. Resolution 1024 x 768

Plug & Play VESA DDC

ON Mode <25W

EPA ENERGY
STAR

®

OFF Mode <2W

Input Connector D-Sub 15pin

Input Video Signal

Analog:0. 7Vp-p(standard)
75 OHM, Positive

Maximum Screen Size

Horizontal : 304.1mm
Vertical: 228.1mm

Power Source

100 V ~ 240 V± 10 %VAC, 50 ± 3Hz, 60 ± 3Hz

Environmental
Considerations

Operating Temp: 5° to 35°C
Operating Humidity: 10% to 80%
Storage Temp.: -20° to 60°C

Weight Weight with packaging: 5.1 kg

15" LCD Color Monitor Dell E157FPc

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2. LCD Monitor Description

The LCD monitor will contain a main board, power board, key board, which house 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.

Video signal, DDC

Power board

Flat Panel and
CCFL backlight

Main Board

Key board

RS232 Connector
For white balance
adjustment in factory
mode

CCFL Drive.

AC-IN
100-240V

Monitor Block Diagram

Host Computer

17" LCD Color Monitor Dell E157FPc

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 these setting s, 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

A

MENU

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.

B

Brightness/Contrast Hot Key

Use this button for direct access to the 'Brightness' and 'Contrast' control
menu.

B C

-

And + buttons

Use these buttons to adjust (decrease/increase ranges) items in the OSD.

Note: you can activate automatic scroll feature by pressing
and holding either + or - button.

A

Menu button

B

Brightness / Contrast Hotkey and - button

C

Auto Adjust and + button

D

Power On/Off button with LED Indicator

15" LCD Color Monitor Dell E157FPc

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C

Auto Adjust

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.

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.

3.3 On Screen Menu/Display (OSD)

Direct-Access Functions

Function Adjustment Method

Auto adjustment

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.

Brightness / Contrast

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'

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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

Function icons

B

Main Menu

C

Menu icon

D

Sub-Menu name

E

Resolution

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 i ndicators on t he menu, to
make your changes.

4. Push the 'Menu' button once to return to the main menu to select another function or push the 'Menu'

button two or three times to exit from the OSD.

15" LCD Color Monitor Dell E157FPc

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Icon Menu Name

and sub-menus

Description

EXIT

This is used to exit out of the 'Main menu'.

Positioning:

Horizontal

Vertical

'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 monitor
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

15" LCD Color Monitor Dell E157FPc

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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 width 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 is typically used for text
based applications (Spreadsheets, 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.).

15" LCD Color Monitor Dell E157FPc

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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 ('Blu e' 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 OSD to the left and right.

Vertical Position

- 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 when the 'Menu' button is pushed and held for over
15 seconds.

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; or pressing the
'Menu' button for 15 seconds to unclock the OSD menu.

15" LCD Color Monitor Dell E157FPc

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Language:

Language sets the OSD to display in one of five language s (English , Esp a ñol, Français,
Deutsch, Japanese).

Note: The language chosen affects only the language of the OSD. It has no
effect on any software running 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 1024X768 60 Hz

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. Recommen ded mode is 1024 X 768 @ 60Hz.

Note: The floating 'Dell - self-test Feature Check' dialog will appear on-screen if the monitor cannot sense a
video signal.

Occasionally , no warning messag e appears, but the screen is blank. This could al so indicate that the monitor is not
synchronizing with the computer. See Troubleshooting for more information.

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4. Input/Output Specification

4.1 Input Signal Connector

Pin NO. Description Pin NO. Description

1. Red Video 9. +5V

2. Green Video 10. Logic Ground

3. Blue Video 11. RXD

4. TXD 12. DDC-Serial Data

5. Detector Pin 13. H-Sync

6. R-Ground 14. V-Sync

7. G-Ground 15. DDC-Serial Clock

8. B-Ground
VGA Connect or layout

15
6

10

11 15

4.2 Factory Preset Display Modes

VESA MODES

Horizontal Vertical

Mode Resolution Total

Nominal
Frequency
+/- 0.5kHz

Sync
Polarity

Nominal
Freq.
+/- 1 Hz

Sync
Polarity

Nominal
Pixel
Clock
(MHz)

640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175

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

VGA

800x600@75Hz 1056x625 46.875 P 75.000 P 49.500
1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000

XGA

1024x768@75Hz 1312x800 60.023 P 75.029 P 78.750

IBM MODES

Mode Resolution Total

Nominal
Frequency
+/- 0.5kHz

Sync
Polarity

Nominal
Freq.
+/- 1 Hz

Sync
Polarity

Nominal
Pixel
Clock
(MHz)

DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322

15" LCD Color Monitor Dell E157FPc

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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 Volt age transients 280 volts AC for 10 sec @40℃
Current 0.6A max, at 100V, 0.35A max, at 240 V

Peak surge current

< 60A peak at 240 VAC and cold starting
< 30A peak at 120VAC and cold starting

Leakage current < 3.5mA

Power line surge

No advance effects (no loss of information or defect)
with a maximum of 1 half-wave missing per second

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4.4 Panel Specification

4.4.1 Display Characteristics (For LTM150XO-L01 panel)

4.4.2 Optical Characteristics (For LTM150XO-L01 panel)

Measured conditions as follows: Ta=25±2°C, VDD=3.3V,fv=60Hz,f

Dclk

=65MHz,Llamp=8mA.

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4.5 Definition of Pixel Defects

For LTM150XO-L01 panel

4.5.1 Defect Modes

Dark / bright spots

Points on the display which appear dark / bright and remain unchanged in size

Dark / bright lines

Lines on the display which appear dark / bright and remain unchanged in size

Polarizer scratch

When the unit is lit a light, line is seen across a darker background; line does not vary in size

Polarizer dent

When the unit is lit a light, light(white) spots appear against a darker background, and do not vary in size

Bright/dark dot

A sub-pixel (R, G, B dot) stuck off / on

4.5.2 Mechanical Inspection

Chassis Gap max. 0.7mm
Light Leakage there shall be no visible light around the edges of the screen.

* If there is none identified criteria in this specification, Samsung will refer productionspecification that
Customer and Samsung agreed.
* If there is mechanical dimension issue which has no designated tolerance, Samsung will apply natural
tolerance.

[ D : diameter, W : width, L : length, N : count ]

*1 : Translucent edge is ignored in measuring the diameter of spot.

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4.5.3 Electrical Inspection

[L: length, N: count]

Definitions/ Notes;

- A bright dot any Red, Green, or Blue pixel suck in the “On” mode.

- A dark dot any Red, Green, or Blue pixel suck in the “Off ” mode.

- Inspection pattern for electrical defect should be pure R, G, B, Black and White.

- Adjacent two dots in horizontal direction will be considered as one dot.

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Fig. 2. Dark dot defect description

【two adjacent】

Fig. 3. Minimum distance between dot defects

【dark dot - to - dark dot】

* Minimum distance criteria is applied to the defect , which are not defined as adjacent dot(two or three) in the spec.
* Will not considered the distance between bright dot & dark dot.
* Will not considered the distance between dot & mechanical defect.
* A dot which is over the half (50%) of a dot size will be considered as one bright dot.

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5. Block Diagram

5.1 Monitor Exploded View

15" LCD Color Monitor Dell E157FPc

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5.2 Software Flow Chart

1

2

N

Y

5

Y

N

10

Y

N

12

Y

N

7

Y

N

6

4

3

8

9

14

11

13

Y

N

15

Y

N

16

17

19

Y

N

18

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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 AUTO 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?

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5.3 Electrical Block Diagram

5.3.1 Main Board

OSD Control Interface

(CN403)

Scalar GM2621

(Include MCU, ADC, OSD)

(U401)

Flash Memory

SST25VF020-20- 4C-SAE

(U402)

EEPROM

M24C16-MN6T

(U403)

D-Sub

Connector

(CN405)

EEPROM (U404)

M24C02WMN6

R
G
B

RXD
TXD

DB15_SDA,
DB15_SCL

EPR_SDA
EPR_SCL

LCD Interface

(CN101)

H
V

15" LCD Color Monitor Dell E157FPc

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5.3.2 Inverter/Power Board

15" LCD Color Monitor Dell E157FPc

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6. Mechanical Instruction

Tools: 2 Power screwdrivers (φ=5mm,L=60mm); 1 small cross screwdriver; turnbuckle driver;

Setting: Power screwdriver torque A=11 kgF. Cm; torque B=6 kgF. Cm

Note: Firstly, put the monitor on a soft, flat and clean surface, wear gloves.

Fig Remark

Remove stand:

Press the Stand release button
and lift up the Stand and away
from the monitor.

Remove bezel:

1. Remove the 4 screws by

torque A

2. Pry the monitor up then find
out the hooks’ position, use
the tool (like the picture or
other card) to insert into the
gap of bezel and rear cover.

15" LCD Color Monitor Dell E157FPc

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3. Take off the bezel

Remove rear cover :
Turn over the monitor as the Fig,
hold the rear cover
, then slightly remove it.

Remove the two screws by

Torque B.

Install:
Fix the keyboard cable by black
tape as the figure showed.

Black tape

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Remove the shield :

1. Remove the screw by Torque

B or by manual and remove the

shield ,then remove the back
light connector

Remove the connector

Remove the two screws by

manual or torque = 3kgF.Cm and

remove the main frame

Remove the main frame and at
the same time disconnect the
L VDS connector

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Install:
Fix the L VDS connector by black
tape and EVA washers.

Remove the nine screws by

Torque B and remove the power

board and main board.

Note: Magnetism ring should be
laid at the right of power board

Fix the L V DS cabl e by bla ck tape
as the figure.

Magnetism ring

Black tape

LVD S Cable

EVA washers

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Screw AC ground line as the
figure.

Note: The green line can’t be
pressed under the power board.

Note: The pins can’t gore the
blue and purple lines.

The end

ground

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7. Schematic Diagram

7.1 Main Board

DDC_SCL_VGA

(3)

BLUE- (3)

R448

2.2K 1/16W

GND

R434

75 1/16W

GND

DDC_SDA_VGA

(3)

R435

75 1/16W

C436

0.047uF

+5V

DDC_SDA_A

C443
NC

R441

100 1/16W

R439

75 1/16W

(10 mil,

┰キ︽絬

)

CN405

DB15

1
6
2
7
3
8
4
9
5

11
12
13
14
15

10

1716

R444

10K 1/16W

(8 mil)

R450

4.7K 1/16W

+5V

GREEN+(3)

GND

Pins 6/7/8 are R/G/B
return lines resp.

U404

M24C02WMN6

4

81
2
3

7

6

5

GND

VCCA0

A1A2WP

SCL

SDA

C432

0.047uF

R436

75 1/16W

R453

220 1/16W

GND

GND

R446 220 1/16W

D404
BAV99

3

1

2

+3.3V_VDD

BLUE+ (3)

FB410

60 OHM

1 2

D

Input Connectors

A

26Wednesday, June 29, 2005

Title

Size Document Number Rev

Date: Sheet

of

HS_in

D403
BAV99

3

1

2

C442
NC

R449

2.2K 1/16W

R440

75 1/16W

GND

HS (3)

R443

100 1/16W

FB411

60 OHM

1 2 C433

0.047uF

D407

BAT54C

3

1

2

RED+ (3)

C448
NC

R452

4.7K 1/16W

GND

R447 220 1/16W

R438
75 1/16W

EDID_WP

(3)

C439

0.1uF/16V

GND

R442

100 1/16W

RED- (3)

Gin

GND

GND

C444

0.1uF/16V

EDID_WP

FB412

60 OHM

1 2

D408

LL5232B 5.6V 5%

SPI_3V3

D411

LL5232B 5.6V 5%

R451

4.7K 1/16W

CABLE_DET (3)

D409

LL5232B 5.6V 5%

Bin

GREEN- (3)

C434

0.047uF

VGA_5V

C437

0.047uF

C438

0.047uF

SPI_3V3

R445
220 1/16W

R454
220 1/16W

D402
NC

3

2

1

D405
BAV99

3

1

2

VGA_PLUG

75-ohm terminating resistor
very close to the VGA
conn.

VS (3)

GND

VS_IN

VGA_5V

+3.3V_VDD

Rin

D412

LL5232B 5.6V 5%

+5V

C447
NC

D410
LL5232B 5.6V 5%

D406

LL5232B 5.6V 5%

R455

220 1/16W

15" LCD Color Monitor Dell E157FPc

30

GND

LVDS_E4

D

gm2621

Custom

36Wednesday, June 29, 2005

Title

Size Document Number Rev

Date: Sheet

of

GND

LVDS_O[0..9] (5)

1.8V_DVDD

NVRAM_SDA

UDART_DI

R422

10K 1/16W

R400 NC

X401

14.318MHz

(PWM0)

UART on GPO

LVDS_E[0..9]

Standard SPI ROM

RED-(2)

LVDS_O3

LVDS_E9

R404NC

1.8V_AVDD

PBIAS (6)

C403

0.1uF/16V

GND

3.3V_LAVDD

LVDS_O6

LVDS_E5

C431

0.1uF/16V

R426

4.7K 1/16W

3.3V_VD

D

Boot-Strap Configuration:

SPI_3V3

LVDS_O4

GND

3.3V_AVDD

LVDS_E7

R430
NC

R431 NC

U403

M24C16-MN6T

1
2
3
4 5

6

7

8

A0
A1
A2
VSS SDA

SCL

WC

VCC

GND

GREEN+(2)

VS(2)

GND

LVDS_O9

3

GPO_0

LBADC1 (4)

R407

4.7K 1/16W

C430

0.1uF/16V

LVDS_E[0..9] (5)

LED_O (4)

R432

4.7K 1/16W

C440
NC

3.3V_PVDD

+3.3V_VDD

R423

4.7K 1/16W

R403NC

LVDS_O7

DDC_SDA_VGA(2)

LVDS_O2

R418
NC

R410 100 1/16W

GND

R401 NC

LBADC2 (4)

R425

4.7K 1/16W

R417

4.7K 1/16W

Default

C402

0.1uF/16V

Open

+3.3V_VDD

HOLD#

C441

0.1uF/16V

+

C409

22uF/16V

/WP

ROM_WP#

3.3V_PVDD

10 KOhm

R406

4.7K 1/16W

3.3V_PVDD

PPWR (6)

C405

0.1uF/16V

GND

R437
NC

UART on DDC

+5V

OPTIONAL
FOR
DEBUGGING
PURPOSES
ONLY

GND

LVDS_O5

R408

4.7K 1/16W

FB406

120OHM

C411

0.1uF/16V

GND

PPWR

Q402

NC

32

1

C446

0.1uF/16V

Ext. ROM JTAG Off

LED_G (4)

CABLE_DET (2)

C435

0.1uF/16V

3.3V_AVDD

R428
NC

GND

C423

0.1uF/16V

GND

3.3V_DVDD

DDC_SCL_VGA(2)

EDID_WP

(2)

C414

0.1uF/16V

R427

4.7K 1/16W

ATMEL_EN

GND

HS(2)

C418

0.1uF/16V

Name

LVDS_O[0..9]

C420

0.1uF/16V

C426

0.1uF/16V

C406

0.1uF/16V

3.3V_AVDD

UDART_DI

POWER_ON (4)

NVRAM_SDA

R421

5.6K 1/16W

U405

NC

1

2

3

GND

RSTN

VCC

GND

LVDS_O0

C421

0.1uF/16V

(SPI_CSn)

ROM_SCLK

R416

4.7K 1/16W

C413

0.1uF/16V

PBIAS

LVDS_E0

R409 100 1/16W

FB404

120OHM

Standard SPI ROM

LVDS_E3

GND

GND

U401

gm2621

MQFP-128

56

49

50

33
34

36
37
38
39

35

29

40

62

60

27

45

41

96

42

119

100

61

12

10

9

8

5

4

3

24

6
7

94

93

52

127

125

124

123

46

44

43

51

28

32

31

30

13
14
15
16

85

19
20
21
22

11

23

99

59

97

103

104

105

106

108
109

110

111

89
90

65

64

121

120
122

126

128

57

58

63

66
67

69

72
73
75
76
80
81
83
84

107

112

113

114

115

12648

1755118

87

9598102

91

116

53

10192827422547

687177

79

867870

185488

117

GPO_1

PBIAS

PWM0 / GP0_4

O_CLK_N
O_CLK_P

O_CH2_P
O_CH1_N
O_CH1_P
O_CH0_N

O_CH2_N

RESERVED

O_CH0_P

SPI_DO

SPI_CLK

RESERVED

RESERVED

O_BON

GREEN+

RESERVED

PWM1 / GPO_5

RED-

SPI_DI

E_CH2_P

E_CLK_P

E_CLK_N

E_CH3_P

RESERVED

RESERVED

RESERVED

RESERVED

RESERVED

E_CH3_N

BLUE-

BLUE+

CRVSS

PPWR

GPIO_13

GPIO_12

GPIO_11

RESERVED

RESERVED

RESERVED

GPO_0

RESERVED

O_CH3_P

O_CH3_N

RESERVED

E_CH1_N
E_CH1_P
E_CH0_N
E_CH0_P

AVSS_DVI

RESERVED
RESERVED
RESERVED
RESERVED

E_CH2_N

RESERVED

RED+

SPI_CSn

GREEN-

AVSS_ADC

AVDD_ADC_18

VBUFC_RPLL

VDD_RPLL_18

XTAL
TCLK

AVDD_RPLL_33

RESETn

HSYNC
VSYNC

DDC_SDA_VGA

DDC_SCL_VGA

GPIO_9

GPIO_8

GPIO_10

GPIO_14

AVDD_BIAS_33

GPO_2

GPO_3

RESERVED

DDC_SCL_DVI
DDC_SDA_DVI

REXT

RX2+
RX2­RX1+
RX1­RX0+
RX0­RXC+
RXC-

VSS_RPLL

LBADC_VSS

LBADC_IN3

LBADC_IN2

LBADC_IN1

AVSS_BIAS

VSS_OUT

VSS_OUT

CVDD_18

CVDD_18

CVDD_18

CVDD_18

AVSS_ADC

AVSS_ADC

AVSS_ADC

RVDD_33

LBADC_VDD_33

RVDD_33

AVDD_ADC_33

AVDD_ADC_33

AVDD_DVI_33

AVDD_DVI_33

VDD_OUT_33

VDD_OUT_33

VDD_OUT_33

AVSS_DVI

AVSS_DVI

AVSS_DVI

AVSS_DVI

AVDD_DVI_18

AVDD_DVI_18

AVDD_DVI_18

CRVSS

CRVSS

CRVSS

CRVSS

C404

0.1uF/16V

UART_PIN_SEL

U402

SST25VF020-20-4C-SAE

1
2
3
4

8
7
6
5

CE#
SO
WP#
VSS

VDD

HOLD#

SCK

SI

GND

3.3V_DVDD

+3.3V_VDD

R424

4.7K 1/16W

+

C419

22uF/16V

3.3V_PVDD

RESETn

FB401

120OHM

LVDS_E6

Open

R476
NC

+5V

BLUE+(2)

C412

0.1uF/16V

GND

R411 100 1/16W

Close to respective power Pins

1.8V_DVDD

GND

NVRAM_SCL

LVDS_O1

ROM_WP#

EDID_WP

LVDS_E8

3.3V_LAVDD

Open

3.3V_DVDD

+1.8V_VDD

BLUE-(2)

LVDS_E1

CN402

1
2
3
4

GND

FB402

120OHM

R419
0 1/16W

NVRAM_SCL

C428 33pF

ATMELSPI ROM

+3.3V_VDD

UDART_DO

R456
NC

R477

4.7K 1/16W

C445

0.1uF/16V

2

(PWM1)

+3.3V_VDD

C417

0.1uF/16V

R429

10K 1/16W

FB403

120OHM

+

C425

22uF/16V

C424

0.1uF/16V

R433
NC

GREEN-(2)

C427 33pF

GND

ROM_SDI

Close to respective power Pins

/WP

ATMELSPI ROM

C422

0.1uF/16V

UDART_DO

FB405

120OHM

C410

0.1uF/16V

Close to respective power Pins

GND

RED+(2)

LVDS_E2

ROM_WP#

BRIGHTNESS(6)

+

C416

22uF/16V

1

+

C401

22uF/16V

GND

C429

NC

Open

1.8V_AVDD

+5V

G-PROBE

LVDS_O8

HOLD#

C407

0.1uF/16V

R402 249 1/16W

V_EDID_ATMEL