Sony S-95F Service Manual

Service Manual

S95E Sony

SONY

TFT LCD COLOR COMPUTER DISPLAY

Table of contents

Table of contents -------------------------------------------------------------------------- 02

1. Precaution ------------------------------------------------------------------------------------------ 03

2.Specification -----------------------------------------------------------05

2.1 Product character-----------------------------------------------------------05

2.2 Interface description-----------------------------------------------------------------06

2.3 Factory preset mode ------------------------------------------------------------07

3.OSD operation --------------------------------------------------------------------------------08

3.1 Generalization ------------------------------------------------------------------------------08

3.2 Key control -------------------------------------------------------------------------08

3.3 Common adjustment --------------------------------------------------------------------- 09

3.4 Adjustment ---------------------------------------------------------------------------------- 20

3.5 Service OSD ------------------------------------------------------------------------------- 21

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4.Disassembly flow chart -------------------------------------------------------------------------22

4.1 Disassembly steps---------------------------------------------------------------------------22

4.2 Wiring Diagram ---------------------------------------------------------------------------26

4.3 Monitor Exploded View -------------------------------------------------------------------27

5. Circuit principle analysis --------------------------------------------------------------------28

5.1 Main board -------------------------------------------------------------------------------28

5.1.1 Block diagram ------------------------------------------------------------------28

5.1.2 Introduction of IC -------------------------------------------------------29

5.1.3 Introduction of important function -------------------------------------------------26

5.2 PWPC board -------------------------------------------------------------------------31

5.2.1 Block diagram------------------------------------------------------------------------31

5.2.2 Introduction of IC------------------------------------------------------------------32

5.2.3 Introduction of important function-------------------------------------------------33

6.Trouble shooting ---------------------------------------------------------------------40

6.1 Main board -----------------------------------------------------------------------------40

6.2 PWPC board -------------------------------------------------------------------------43

7. BOM -----------------------------------------------------------------------------------45~62

8. Schematic -------------------------------------------------------------------------------------63~69

1. Precaution

Warning on power connections

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Installation

Handing the LCD screen

Maintenance

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Transportation

2. Specification

2.1 Product character

Driving system TFT LCD

Pixel pitch (0.098 x 3 )mm(H) x 0.294mm(V)

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Size 19.0"

Type M190EN04 V5

LCD Panel

Input signals

Viewing angle 170(H) 170(V)

Luminance 300 cd/m2 (typ)

Contrast Ratio 600:1 (typ)

Response time 16ms (typ)

Display colors 16.7 million Colors

Max dimension

R G B Analog 0.7Vp-p

R G B Digital TMDS

H/V separate TTL level

Horizontal frequency

Vertical rate

Recommend resolution 1280 x 1024@60HZ

Normal operation

Horizontal: 376.320mm

Vertical: 301.056mm

28kHz–80kHz (Analog)

28kHz–64kHz (Digital)

48-75Hz (Analog)

60Hz (Digital)

≤50W

Power consumption

Active off (deep sleep)

Power off

Main power off

Power supply AC voltage

Temperature 5-35°C

Operating condition

Humidity 10-80%

100~240VAC,50~60Hz

≤1W

2.2 Interface description

1. HD 15 Signal Input Pin Assignments

NO. Description NO. Description

1. Red Video 9. +5V

2. Green Video(Sync on Green) 10. Sync Return

3. Blue Video 11. ID (GND)

4. ID(GND) 12. DDC Data

5. Sense of connection PC 13. Horizontal Sync

6. Red Video Return 14. Vertical Sync

7. Green Video Return 15. DDC Clock

8. Blue Video Return

VGA Connector layout

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2.3 Factory preset mode

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Resolution Frequency (KHz) Vertical (Hz)

720 × 400 31.469 70.087

640 × 480 31.469 59.940

640 × 480 35.000 66.667

640 × 480 37.500 75.000

720 × 480 35.200 60.000

800 × 600 35.156 56.250

800 × 600 37.879 60.317

800 × 600 48.077 72.188

800 × 600 46.875 75.000

800 × 600 49.725 74.551

1024 × 768 48.363 60.004

1024 × 768 56.476 70.069

1024 × 768 60.023 75.029

1024 × 768 60.2 75

Clock (MHZ)

28.322

25.175

30.240

31.500

31.505

36.000

40.000

50.000

49.500

57.283

65.000

75.000

78.750

80.000

1152 × 864 67.5 75

1152 × 870 68.9 75

1152 × 900 61.8 66

1152 × 900 71.7 76

1170 × 584 31.2 50

1280 × 960 60.0 60

1280 × 1024 63.981 60.020

1280 × 1024 79.976 75.025

108.000

100.000

92.940

105.590

46.200

108.000

108.00

135.00

3. OSD operation

3.1 Generalization

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 Key control

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Power Switch:

seconds. Besides, Power Switch: the picture and the green LED shall be lit. When the Power button is

pushed again, the status shall be changed into Power Off within 1 second. Besides, the picture and the

green LED shall disappear.

Menu Button: O

(Arrow) Button: These buttons are used to select the menu items make adjustments.

When the Power button is pushed, the status shall be changed into Power On within 2

SD window shall be displayed by pressing the “Menu” button in the Power On condition.

OK Button: This button activates the selected menu item and adjustments made using the Arrow buttons.

ECO Button: This button is used to reduce the power consumption.

Main Power Switch: This switch turns the monitor’s main power on and off.

The indication of LED:

Green — Normal On or Out of range.

Amber — Stand-By or Suspend.

Red — Power Off

Key control:

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3.3 Common adjustment

NO Icon Tag Description

Backlight Adjust the brightness of the backlight

Contrast Adjust the picture contrast

Brightness Adjust the picture brightness (black level)

Screen Adjust the picture’s sharpness or its centering

Color Adjust the color temperature of the picture

Gamma Change the picture’s color shade settings

Menu position Change the on screen menu position

Language Chance the language used on menus or messages

Reset Reset the adjustments to the default settings

Menu lock

Lock the control of buttons to prevent accidental adjustments or

resetting

Adjustment steps of each menu

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3.4 Adjustment

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1. Procedures of how to go to service mode.

1) Enter the service mode of this unit by turning on the power while pressing and holding the "MENU" key

simultaneously.

2) Press "MENU" key----MAINTAIN.

3) Press "OK" key to enter the service menu.

4) Select the desired function.

5) Press the "MENU" key to exit OSD.

6) Turn off the power and then turn it on again. The monitor then enters the normal mode.To enter the

service again, repeat the proceduredescribed above.

Note

W/B readjustment is required after the panel, board and microcomputer are replaced. However, be

sure to perform aging for more than 30 minutes for RGB reset before W/B adjustment.

2. Setup

1) Prepare timing and pattern data for a signal generator according to the Sony timing specifications.

2) Connect a monitor video cable to the signal generator.

3) Put Color Analyzer(ex. CA-110) 50cm away from the monitor, specify it vertically in the center of the

display, and adjust the focus to the optimum level using an eyepiece.

4) Put the monitor and Color Analyzer(ex. CA-110) in a light-shielded room.

5) Set up [SERVICE MODE] of the monitor.

3. Operation

Data is manually set to improve the productivity. The brightness, contrast, and backlight are set to 50,

70 and 100 respectively. After that, the default data of the color temperature to be adjusted is set.

4. Warm up time

Warm up for 30 minutes before performing any adjustment.

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5. Adjustment for White Balance

a. Display SMPTE at SXGA/60Hz(Input level 0.73V).

b. Set up [SERVICE MODE].

c. Click "CLEAR EEPROM" and AC Power off.

d. Set up [SERVICE MODE] of the monitor again.

e. Click "WHITE BALANCE" and then select "AUTO".

f. Prepare timing and full black pattern.

g. Click "OFFSET CALIBRATION".

h. After offset calibration is completed prepare full white pattern. i. Click " GAIN CALIBRATION".

6. 9300K color adjustment

a. Select "9300K" in "COLOR TEMP" and enter.

b. Use a 100% IRE white video field in the primary mode.

c. Adjust "CONTRAST " to secure the color temperature.

d. Press "MENU" key to exit adjust mode.

7. 6500K color adjustment

a. Select "6500K" in "COLOR TEMP" and enter.

b. Repeat the adjustment procedure as steps b to d at 9300K.

8. SRGB color adjustment

a. Select "SRGB" in "COLOR TEMP" and enter.

b. Repeat the adjustment procedure as steps b to d at 9300K.

3.5 Service OSD

To enter service OSD menu.

1). Turn off the power switch button.

2). Press volume down,and then power key.

3). Shows the service OSD menu. That menu is located in down side of main menu.

4). The service OSD menu contains additional menus as described below.

a). ADC CALBRATION : Adjust the offset voltage and gain value in PC mode.

b). VIDEO CALBRATION : Adjust the offset voltage and gain value in video input.

c). COLOR TEMP : Adjust R/G/B Color values of contrast and brightness in 9300k, 6500k,User color

mode.

d). AGING : Select aging mode. (on/off)

e). CLEAR ETI : Initilize the used time of MFT

f). CLEAR EEPROM : Initilize the EDID DATA at DDC2B EEPROM is saved system memory.

Process : Press ok button, and then power key.

g). DEFAULT TIMING 1 : Select the resolution timing of the signal.

Menu is 1152 X 864(VESA standard timing) 1152 x 870 (MAC computer timing).

h). DEFAULT TIMIN G2 : Select the resolution timing of the signal.

Menu is 1080 i (video timing) and 1035i.

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