Fujitsu Siemens Computers FSC B15-1A Manuale utente

FSC B15-1A Service Manual

SERVICE MANUAL

15” LCD Monitor

FSC B15-1A

THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE

EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANU

L; WE CANNOT

GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND

DISCLAIMS RE LIABILITY FOR CHANGES, ERRORS OR OMISSIONS.

FSC B15-1A Service Manual

TableofContents

Table of Contents ---------------------------------------------------------------------------- 02

Revision List ----------------------------------------------------------------------------------- 03

1. Monitor Specification ---------------------------------------------------------------------04

2. LCD Monitor Description ---------------------------------------------------------------05

3. Operation Instructions --------------------------------------------------------------------06

3.1 General Instructions ------------------------------------------------------------------06

3.2 Control Button -------------------------------------------------------------------------06

3.3 Adjusting The Picture ----------------------------------------------------------------07

4. Input/Output Specification ---------------------------------------------------------------10

4.1 Input Signal Connector --------------------------------------------------------------10

4.2 Factory Preset Display Modes -----------------------------------------------------10

4.3 Power Supply Requirements -------------------------------------------------------11

4.3.1 Input Requirements ------------------------------------------------------------11

4.3.2 Output Requirements --------------------------------------------------------11

4.4 Panel Specification ---------------------------------------------------------------12

4.4.1 Panel Feature --------------------------------------------------------------------12

4.4.2 Display Characteristics ---------------------------------------------------------12

4.4.3 Optical Characteristics --------------------------------------------------------12

4.4.4 Parameter guide line for CCFL Inverter ------------------------------------13

5. Block Diagram -----------------------------------------------------------------------------13

5.1 Monitor Exploded View -------------------------------------------------------------13

5.2 Software Flow Chart ------------------------------------------------------------------14

5.3 Electrical Block Diagram -------------------------------------------------------------16

FSC B15-1A Service Manual

5.3.1Main Board -----------------------------------------------------------------------16

5.3.2 Inverter/Power Board -----------------------------------------------------------17

6. Schematic -----------------------------------------------------------------------------------19

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

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

6.3 KeyPad Board -------------------------------------------------------------------------23

7. PCB Layout ---------------------------------------------------------------------------------24

7.1 Main Board -----------------------------------------------------------------------------24

7.2 Inverter/Power Board ----------------------------------------------------------------26

7.3 Keypad Board -------------------------------------------------------------------------27

8. Maintainability ------------------------------------------------------------------------------27

8.1 Equipments and Tools Requirements --------------------------------------------27

8.2 Trouble Shooting ----------------------------------------------------------------------28

8.2.1 Main Board -------------------------------------------------------------------------28

8.2.2 Power/Inverter Board ------------------------------------------------------------31

8.2.3 Key pad Board -------------------------------------------------------------------33

9. White-Balance, Luminance Adjustment ---------------------------------------------34

10. EDID Content ------------------------------------------------------------------------------35

11. BOM List ----------------------------------------------------------------------------36～50

FSC B15-1A Service Manual

1. MONITOR SPECIFICATIONS

Driving system TFT Color LCD

Size 38.1cm(15.0")

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

Viewable angle 130˚(H) 90˚(V)

LCD Panel

Response time (typ.) 25 ms

Video Analog

Sync. Type H/V TTL Separate and Composite Sync.

H-Frequency 30kHz – 61kHz

Input

V-Frequency 56-76Hz

Display Colors Over 16 million Colors

Dot Clock ≦100MHz

Max. Resolution 1024 x 768

Plug & Play VESA DDC2BTM

ON Mode

<35W

Power Consumption 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 85%

Packaged 3.8Kgs UnitWeight (N. W.)

Unpackaged 5.5Kgs Unit

FSC B15-1A Service Manual

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: ada

ter, Inverter

)

Flat Panel and

CCFL backlight

Main Board

Keyboard

RS232 Connector

For white balance

HOST Computer

CCFT Drive.

AC-IN

90V-264V Video signal, DDC

Monitor Block Diagram

FSC B15-1A Service Manual

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

FSC B15-1A Service Manual

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 6or 5button 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 6or 5button to mark another function.

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

Press the 6or 5button to adjust the value for the selected function.

Press the EXIT/AUTO button to exit the function.

If necessary, press the button6or 5to mark another function or press the EXIT/AUTO button to return to

the main menu.

All changes are stored automatically.

If you want to change other settings, select the corresponding function from the OSD main menu.

All possible adjustments of the main menu are described in the following.

FSC B15-1A Service Manual

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.

Auto Level Setting the brightness of the display

With this function you can automatically set the contrast.

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.

FSC B15-1A Service Manual

Native = Original colour of the LCD display

Custom colour = 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.

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 functions in the "Advanced " menu

Calling the Advanced setting window

Resolution

Notifier

Displaying monitor data

The optimum resolution for this monitor is 1024 x 768 pixels. 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 1024 x 768 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.

FSC B15-1A Service Manual

4. Input/Output Specification

4.1 Input Signal Connector

Analog D-SUB Connector

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

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

37.5 kHz

37.9 kHz

46.9 kHz

48.4 kHz

60.0 kHz

70 Hz

60 Hz

75 Hz

60 Hz

75 Hz

60 Hz

75 Hz

720 x 400

640 x 480

800 x 600

1024 x 768

For ergonomic reasons, a screen resolution of 1024 x 768 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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