Fujitsu Siemens Computers FSC B17-1 Service Manual

FSC B17-1 Service Manual

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SERVICE MANUAL

17” LCD Monitor

FSC B17-1

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.

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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 --------------------------------------------------6

4. Input/Outpt Specification --------------------------------------------------------8

4.1 Input Signal Connector --------------------------------------------------------8

4.1.1 Analog D-SUB Connector ----------------------------------------------------8

4.2 Factory Preset Display Modes -----------------------------------------------8

4.3 Power Supply Requirements ----------------------------------------------10

4.3.1 Input Requirements ----------------------------------------------------------10

4.3.2 Output Requirements -------------------------------------------------------10

4.4 PANEL SPECIFICATION (Samsung ) -------------------------------------11

4.4.1 Panel Feature ----------------------------------------------------------------11

4.4.2 Display Characteristics --------------------------------------------------11

4.4.3 Optical Characteristics -----------------------------------------------------11

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 ------------------------------------------------------------------------19

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6.1 Main Board ----------------------------------------------------------------------19

6.2 Inverter/Power Board --------------------------------------------------------22

6.3 KeyPad Board -----------------------------------------------------------------24

7. PCB Layout -----------------------------------------------------------------------25

7.1 Main Board ---------------------------------------------------------------------25

7.2 Inverter/Power Board --------------------------------------------------------27

7.3 Keypad Board ------------------------------------------------------------------28

8. Maintainability --------------------------------------------------------------------28

8.1 Equirements and Tools Requirements ---------------------------------28

8.2 Trouble Shooting --------------------------------------------------------------29

8.2.1 Main Board --------------------------------------------------------------------29

8.2.2 Power/Inverter Board ------------------------------------------------------32

8.2.3 Key Pad Board ---------------------------------------------------------------34

9. White-Balance, Luminance adjustment --------------------------------35

10. EDIT Content ------------------------------------------------------------------36

11. BOM List --------------------------------------------------------------------------37

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1. MONITOR SPECIFICATIONS

Driving system TFT Color LCD
LCD Panel Size 38.1cm(15.0")

Pixel pitch 0.297mm( H )x 0.297mm( V )
Viewable angle 130˚ (H) 90˚ (V)
Response time (typ.) 25 ms
Video Analog/DVI-D
Input Sync. Type H/V TTL Separate and Composite Sync.
H-Frequency 30kHz – 63kHz
V-Frequency 55-75Hz
Display Colors Over 16 million Colors
Dot Clock 80MHz
Max. Resolution 1024 x 768
Plug & Play VESA DDC2BTM
Power Consumption ON Mode

<35W

OFF Mode

<1W

Maximum Screen Size

Horizontal : 12.0”(304.128mm)
Vertical : 9.0”(228.096mm)

Power Source

90~264VAC,47~63Hz

Environmental
Considerations

Operating Temp: 5°C to 40°C

Storage Temp.: -5°C to 40°C
Operating Humidity : 10% to 80%

Weight (N. W.) Packaged 4.6Kgs Unit
Unpackaged 6.3Kgs Unit

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2. LCD MONITOR DESCRIPTION

The LCD MONITOR will contain an main board, an inverter/power board, keypad board and internal adapter which
house the flat panel control logic, brightness control logic and DDC.
The Inverter board will drive the backlight of panel and the DC-DC conversion.
The Adapter will provides the 12V DC-power to inverter/power board.

Power board

(

include:adapter,inverter)

Flat Panel and
CCFL backlight

Main Board

Keyboard

RS232 Connector
For white balance
adjustment in
factory mode

HOST Computer

CCFT Drive.

AC-IN
90V-264V

Video signal, DDC

Monitor Block Diagram

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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.

- Left / Right Button:

The Left/Right Button is used to control the monitor 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.

1.Buttons for the OSD menu
(On-Screen-display)

2.Power indicator

3.ON/OFF switch

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 (

Brightness/Contrast) is highlighted.

necessary, press the

6

or 5 button to mark another icon (e.g. Image adjust).

Press the SELECT/MENU button to select the highlighted icon.

The corresponding setting window (here: Image Adjust) is displayed.

The first symbol (H-Position) is highlighted.
If necessary, press the 6 or 5 button to mark the desired icon.
Press the SELECT/MENU button to select the highlighted function.
Press the 6 or 5 button to adjust the value for the selected function.
Press the EXIT/AUTO button to exit the function.

All changes are stored automatically.

Adjusting the brightness and contrast

Calling the Brightness / Contrast setting window.

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.

Black Level

Setting the brightness of the display
With this function you modify the contrast of dark colour tones.

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Auto Level

Setting the brightness of the display
With this function you can automatically set the contrast.
Press the SELECT/MENU button to activate function.

Adjusting size and position

Calling the Image adjust 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.

Clock

Setting synchronisation
With this function you adjust the picture width to eliminate vertical picture

disturbances.

Phase

Eliminating picture interference
With this function you fine-tune your monitor to eliminate picture

interference.

Adjusting the volume

Calling the Audio setting window

Volume

Setting the volume for playback with the integrated loudspeakers

Mute

Switching the loudspeakers off or on

Setting colour temperature and colours

Calling the Colour setting window
Selecting the colour temperature

The "warmth" of the screen colours is set using the colour temperature. The
colour temperature is measured in K (= Kelvin). You can select from 6500 K,
9300 K,

Native and Custom Colour.

Native
Custom Colour

= original colour of the LCD display

= setting user-defined colours

In the user-defined 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 Setup setting window

Language

Setting language for the OSD menu
With this function you choose between English (default setting), French,

German, Italian and Spanish as the language for the OSD menu.

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OSD

H-Position

Setting the horizontal position of the OSD menu
With this function you move the OSD menu to the left or to the right.

OSD

V-Position

Setting the vertical position of the OSD menu
With this function you move the OSD menu up or down.

OSD

Timeout

Setting the display duration of the OSD menu
With this function you select a value from 10 to 120 seconds.
If the set time expires without a setting being made, the OSD menu is

automatically faded out.
Setting the display format of the OSD menu

With this function you switch the OSD menu from portrait mode to landscape
mode and vice versa.

OSD

Rotation

O
ff

O
n

= the OSD Menu is displayed in portrait mode
= the OSD Menu is displayed in landscape mode

Setting functions in the "Advanced " menu

Calling the Advanced setting window

Input select

Selecting input signal
With this function you switch the screen from the analogue to the digital mode

and vice versa.
The condition is that the graphic card used supports this function.

Resolution

Notifier

Displaying monitor data
The optimum resolution for this monitor is 1280 x 1024pixels. With the function

activated (On), a message appears on the screen after approx. 30 seconds if a
different resolution is set.

Change the resolution to 1280 x 1024 to achieve optimum picture quality.
With the function deactivated (Off), no message appears.

Factory Recall

Activating the factory settings
With this function all settings are reset to the factory settings without prompting

for confirmation.
The Auto Processing message is displayed.

Displaying information

Calling the Information setting window
With this function the model designation, serial number,
resolution, H/V frequency, input signal and polarity of the
synchronisation signal are displayed.

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4. Input/Outpt Specification

4.1 Input Signal Connector

4.1.1 Analog D-SUB Connector

1

5

6

10

11

15

Pin Meaning Pin Meaning

1 Video input red 9 +5 V (DDC)
2 Video input green 10 Sync. ground
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

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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

60.0 kHz

79.9kHz

70 Hz
60 Hz
75 Hz
60 Hz
75 Hz
60 Hz
75 Hz
60 Hz
75 Hz

720 x 400
640 x 480
640 x 480
800 x 600

800 x 600
1024 x 768
1024 x 768

1280 x 1024
1280 x 1024

For ergonomic reasons, a screen resolution of 1280 x1024 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.

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4.3 Power Supply Requirements

4.3.1 Input Requirements

PARAMETER RANGE CONDITION

Input Voltage 90 to 264VAC RMS Universal input full range
Input Frequency 47 Hz to 63 Hz 110V AC 60Hz; 220V AC 50 Hz
Input Current Less than 2.0 Amps RMS Input voltage 100 VAC RMS ; 60 Hertz. Parameter

must be reached within 3 seconds of turn-on.

Less than 1.0 Amps RMS Input voltage 220 VAC RMS ; 50 Hertz. Parameter

must be reached within 3 seconds of turn-on.

Input Power Less than 75 Watts
Power factor > 0.5 Input voltage 120 VAC RMS ; 60

Hertz

Inrush Current Less than 30 A peak Input voltage 100 VAC RMS ; 60 Hertz at all

Phase(0, 90, 180, 270 degree)

Less than 50 A peak Input voltage 240 VAC RMS ; 50 Hertz at all

Phase(0, 90, 180, 270 degree)

Input Fusing Fuse should be located internal to the

adapter, easily accessible when the
cover is removed

Fuse must be UL/CSA approved. Fuse value must no
have to change for 115 VAC or 230 VAC operation

Leakage Current Less than 3.5 mA Input voltage 240 Volts RMS ; 50 Hertz
Hi-Pot Primary to secondary 1.5KVAC for 1 Minute(leakage current 10mA)

1.8KVAC for 1 Minute(leakage current 10mA)

3.0KVAC for 1 Minute(leakage current 10mA)
without Y-cap & Coupling cap.

Primary to Saft Ground 1.5KVAC for 1 Minute(leakage current 10mA)

1.8KVAC for 1 Minute(leakage current 10mA)

4.3.2 Output Requirements
PARAMETER RANGE CONDITION

DC Out 12VDC ± 5% Min 0A Max 3.75A
Load Regulation 12.0V(12.12V) ± 5% 11.4 to 12.6VDC
Dynamic Load
Regulation

Any frequency up to 250Hz(duty
50%)

±5% for 10% to 100%, 100% to 10% load change for
+12Vdc

Ripple & noise 170mVpp at 12VDC Input voltage : 100VAC at 60Hz 240VAC at 50Hz

* Ripple and noise are measured.

Output current

p

rotection

less than 7.0A, more than 12.0A
at 12.0VDC

Current exceeds maximum rateing more than 20%

Leakage Current Less than 0.25 mA Input voltage 100 Volts RMS ; 50 Hertz
Less than 0.5 mA Input voltage 240 Volts RMS ; 50 Hertz

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4.4 PANEL SPECIFICATION (CPT)

4.4.1 Panel Feature

-High contrast ratio, high aperture structure

-TN(Twisted Nematic) mode

-Wide viewing angle

-High speed response

-SXGA(1280 x 1024 pixels) resolution

-Low power consumption

-2 dual CCFTs(Cold Cathode Fluorescent Tube)

-DE(Data Enable) mode

-COMPACT SIZE DESIGN

4.4.2 Display Characteristics

Items Specification Unit

Display Area 337.92(H) x 270.336(V) mm
Driver element a-Si TFT active matrix
Display color 16.2M Colors
Number of pixels 1280 x 1024 pixel
Pixel Arrangement RGB vertical stripe
Pixel pitch 0.264(H) x 0.264(W) mm
Display Mode Normally White

4.4.3 Optical Characteristics

The optical characteristics are measured under stable conditions at 25℃ (Room Temperature):

Item Symbol Conditions Min. Typ. Max. Unit Note

Contrast Ratio
(Center of screen)

C/R 250 350 -

Rising

Tr

- 5 7

Response
Time

Falling Tf - 20 25

msec

Luminance of White
(Center of screen)

YL 200 250 - Cd/m2
Rx 0.633

Ry 0.354
Gx 0.292

Gy 0.598
Bx 0.145
By 0.107

Wx 0.305

Color

Chromaticity

(CIE 1931)

Coordinates (CIE)

Wy

Normal

ψ=0
θ=0

Viewing

Angle

Typ.

-0.03

0.338

TYP.

+0.03

Brightness Uniformity [%] 75 80 -

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4.4.4 Parameter guide line for CCFL Inverter

INVERTERMAXBRINGTHNESS(Vadj:5.0v), LOAD=80KΩX4(ROOMTEMPERATURE25℃ ±4℃)

ITEM SYMBOL MIN. TYP. MAX. UNIT REMARK

Inputvoltage Vin  10.8 12 13.2 V

Inputcurrent Iin1700 2450 mA FOR4LOAD

OutputCurrent Iout 6.5 7.0 7.5 mA FOR1LOAD

Frequency

F 45.0 50.0 55.0 KHZ

FOR1LOAD

H.Vopen Vopen 1300 1450 1600 Vrms NOLOAD

H.VLoad Vload 480 580 680 Vrms

RL=80KΩ

Startvoltage Vst

1550 1650 1750 Vrms RL=CCFL

ProtectdelaytimePDT

0.4 1Sec



INVERTERMINBRINGTHNESS(Vadj:0.0v),LOAD=80KΩX4(ROOMTEMPERATURE25℃ ±4℃)

ITEM SYMBOL MIN. TYP. MAX. UNIT REMARK

inputvoltage Vin  10.8 12 13.2 V

inputcurrent Iin560 650 mA FOR4LOAD

OutputCurrent Iout 3.5 4.0 4.5 mA FOR1LOAD

Frequency

F 45.0 50.0 55.0 KHZ

FOR1LOAD

H.Vopen Vopen 1300 1450 1600 Vrms NOLOAD

Startvoltage Vst

1550 1650 1750 Vrms RL=CCFL

H.VLoad Vload 180 280 380 Vrms

RL=80KΩ

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5. Block Diagram

5.1 Monitor Exploded View

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5.2 Software Flow Chart

1

2

5

10

12

7

643

8

9

141113

1516

1719

18

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1) MCU initialize.

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.
Scaler initialize.

10) In standby mode ?

11) Update the life time of back light.

12) Check the analog port, are there any signals coming ?

13) Does the scalar send out a 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 disappear.

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 ?