IBM ThinkVision L170 Bedienungsanleitung

IBM L170 Service Manual

SERVICE MANUAL

17” LCD Monitor

IBM L170

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.

IBM L170 Service Manual

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

IBM L170 Service Manual

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

IBM L170 Service Manual

1. MONITOR SPECIFICATIONS

Driving system TFT Color LCD

LCD Panel Size 43.2cm(17.0")

Pixel pitch 0.264mm( H )x 0.264mm( V )

Viewable angle 140˚(H) 120˚(V)

Response time (typ.) 25 ms

Video Analog

Input Sync. Type H/V TTL

H-Frequency 30kHz – 80kHz

V-Frequency 55-75Hz

Display Colors Over 16 million Colors

Dot Clock 135MHz

Max. Resolution 1280 x 1024

Plug & Play VESA DDC2BTM

Power Consumption ON Mode

<45W

OFF Mode

<3W

Maximum Screen Size Horizontal : 13.3”(337.92mm)

Vertical : 10.6”(270.336mm)

Power Source 100~240VAC,47~63Hz

Environmental

Considerations

Operating Temp: 0°C to 40°C

Storage Temp.: -20°C to 60°C

Operating Humidity : 15% to 90%

Weight (N. W.) Packaged 7.4Kgs Unit

Unpackaged 6.6Kgs Unit

IBM L170 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

adjustment in

factory mode

HOST Computer

CCFT Drive.

AC-IN

100V-240V Video signal, DDC

Monitor Block Diagram

IBM L170 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.

A. Auto button/Exit

B. Left button/Brightness

C. Right button/Contrast

D. Menu button

E. Power button

F. Indicator light

3.3 ADJUSTING THE PICTURE

CONTROL Buttons

IBM L170 Service Manual

Contrast Adjusts over all screen brightness.

Brightness Adjusts difference between light and dark areas.

3. Horizontal Position Moves image left or right.

4. Vertical Position Moves image up or down.

Automatic Optimizes image(size,position,phase,and clock).

6. Clock Clock Adjusts picture Clock.

7. Phase Phase Adjusts picture Phase.

8. Color Adjusts intensity or red,green and blue.

9. Information Shows resolution, refresh rate, and product details.

10. Menu Language Changes language of menu.

11. Menu Position Adjusts menu location.

12. Factory Default Resets monitor to original settings.

13. Accessibility Change button repeat rate menu time-out settings.

14. Exit Exit Save user adjustment and OSD disappear.

15.

16.

IBM L170 Service Manual

4. Input/Outpt Specification

4.1 Input Signal Connector

PIN NO.

DESCRIPTION

PI N NO.

DESCRIPTION

1. Red 9. +5V

2. Green 10. Detect Cable

3. Blue 11. NC

4. Ground 12. DDC-Serial Data

5. Ground 13. H-Sync

6. R-Ground 14. V-Sync

7. G-Ground 15. DDC-Serial Clock

8. B-Ground

VGA connector layout

610

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@72Hz 832 x 520 37.861 N 72.809 N 31.500

VGA

640x480@75Hz 840 x 500 37.500 N 75.00 N 31.500

800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000

800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000

800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000

SVGA

800x600@75Hz 1056x625 46.875 P 75.000 P 49.500

1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000

1024x768@60Hz 1312x813 48.78 N 60.00 N 64.000

1024x768@70Hz 1328x806 56.476 N 70.069 N 75.000

1024x768@72Hz 1304x798 57.515 P 72.074 P 75.000

1024x768@75Hz 1328x804 60.200 N 74.90 N 80.000

XGA

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

IBM L170 Service Manual

XGA 1152x864@75Hz 1600x900 67.50 P 75.000 P 108.000

1280x1024@60Hz 1688x1066 63.981 P 60.020 P 108.000

SXGA 1280x1024@75Hz 1688x1066 79.976 P 75.025 P 135.000

IBM MODES

Horizontal Vertical

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

DOS** 640x400@70Hz 800 x 449 31.469 N 70.087 P 25.175

MAC MODES

VGA

640x480@67Hz 864x525 35.000 N 66.667 N 30.240

SVGA

832x624@75Hz 1152x667 49.725 N 74.551 N 57.2832

IBM L170 Service Manual

4.3 Power Supply Requirements

4.3.1 Input Requirements

PARAMETER RANGE CONDITION

Input Voltage 100 to 240VAC RMS Universal input full range

Input Frequency 60Hz @ 100VAC to 50Hz @

240VAC

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

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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