AOC F1503 Service Manual

HP Mannequin (f1503) Service Manual

SERVICE MANUAL

15” LCD Monitor

f1503

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 RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.

P/N:

HP Mannequin (f1503) Service Manual

I. Revision List

Revision Date Change Description

HP Mannequin (f1503) Service Manual

II. Table of Contents

I. Revision List ............................................................................................................................. 2

II. Table of Contents .................................................................................................................... 3

1. MONITOR SPECIFICATIONS ............................................................................................ 5

2. LCD MONITOR DESCRIPTION ......................................................................................... 6

3. OPERATING INSTRUCTIONS ............................................................................................ 7

3.1 General Instructions ............................................................................................................................. 7

3.2 Control Buttons .................................................................................................................................... 7

3.3 Adjust The Picture ................................................................................................................................ 8

4. Input/Outpt Specification ....................................................................................................... 9

4.1 Input Signal Connector .......................................................................................................................... 9

4.1.1 Analog D-SUB Connector ............................................................................................................. 9

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 (Hannstar ) .............................................................................................. 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 ....................................................................................................................... 14

5.1 Monitor Exploded View ....................................................................................................................... 14

5.1.1 f1503 ............................................................................................................................................ 14

5.1.2 f1503 ............................................................................................................................................ 15

5.2 Software Flow Chart ............................................................................................................................ 16

5.3 Electrical Block Diagram ..................................................................................................................... 17

5.3.1 Main Board .................................................................................................................................. 17

6. Schematic ................................................................................................................................ 18

6.1 Main Board ........................................................................................................................................... 18

6.2 Power Board .......................................................................................................................................... 23

6.3 Key Board ............................................................................................................................................. 24

HP Mannequin (f1503) Service Manual

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

7.1 Main Board ........................................................................................................................................... 25

7.2 Power Board .......................................................................................................................................... 26

7.3 Key Board ............................................................................................................................................. 27

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

8.1 Equipments and Tools Requirement ................................................................................................... 28

8.2 Trouble Shooting ................................................................................................................................... 29

8.2.1 Main Board .................................................................................................................................. 29

8.2.2 Power Board ................................................................................................................................ 31

8.2.3 Key Board .................................................................................................................................... 32

8.3 Alignment Procedure ............................................................................................................................ 32

8.4 DDC Writing ......................................................................................................................................... 33

8.4.1 DDC Writing Procedure .............................................................................................................. 33

8.4.2 EDID Content .............................................................................................................................. 33

8.4.3 Serial Number Format ................................................................................................................. 34

9. Part Lists .............................................................................................................................. 335

HP Mannequin (f1503) Service Manual

1. MONITOR SPECIFICATIONS

Driving system TFT Color LCD

LCD Panel Size 38.1cm(15.0")

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

Viewable angle 130˚ (H) 100˚ (V)

Response time (typ.) 35 ms

Video Analog

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

H-Frequency 30kHz – 60kHz

V-Frequency 56-75Hz

Display Colors 16.7 million Colors

Dot Clock 80MHz

Max. Resolution 1024 x 768

Plug & Play VESA DDC2BTM

Power Consumption ON Mode <22W

ON Mode (With Speaker) <34 W

Power Saving <2 W

Power Saving (With Speaker)

Switch Off <2 W

Switch Off (With Speaker)

Maximum Screen Size

Power Source

Environmental

Considerations

Operating Temp: 5°C to 35°C

<14 W

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

90~264VAC,47~63Hz

Non-Operating Temp.: -20°C to 60°C

Operating Humidity : 20% to 80%

Weight (N. W.)

Package with Speaker 6.7Kgs Unit (net)

HP Mannequin (f1503) Service Manual

2. LCD MONITOR DESCRIPTION

The LCD MONITOR will contain an main board, an power board, key board and external adapter which house

the flat panel control logic, brightness control logic and DDC.

The power board will drive the backlight of panel and the main board chips each voltage.

An adapter will provide the 12V DC voltage to power conversion board.

AC-IN

90V-264V

Power Board

ADAPTER

Monitor Block Diagram

CCFT Drive.

Main Board

Keyboard

Flat Panel and

CCFL backlight

HOST Computer

RS232 Connector

For white balance

adjustment in

factory mode

Video signal, DDC

HP Mannequin (f1503) 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 performance.

The power cord should be connected and insert to adaptor.

Connect the video cable from the monitor to the computer VGA card.

Press the power button to turn on the monitor, the power indicator will light up to blue.

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.

- - (Down / Brightness) and + (Up / Contrast) Button:

The -/+ Button is browse OSD key. Press a select into adjustment.

- Auto / Select Key:

The Auto Adjust Key is used to automatically set the H Position, V Position, Clock and Phase. Select key is into OSD sub-menu hot key when OSD turn on.

- Power Indicator:

Blue — Power On mode. Amber — Power Saving mode. Blank — Power Off Mode.

CONTROL Buttons

3.3 Adjust The Picture

HP Mannequin (f1503) Service Manual

3. Advance

Brightness/ Contrast

Image Control

Auto Configuration

Factory settings

Language Shows the language of the OSD window.

Adjust the brightness or the difference between the light and dark area.

Adjust the:

z H-Position: horizontal position of the screen image. z V-Position: vertical position of the screen image. z Clock: frequency of the pixel clock to minimize vertical

bar. z Phase: phase value to minimize horizontal jitters. Displays a sub-menu with two option: z Color: adjusts the color tint of white, and the red,

green, and blue (RGB) mix for colors. z OSD (on Screen Display) settings: adjusts the

position, timeout, and notification features of the On

Screen Display window.

Adjusts the main settings and produces a stable, centered image.

Resets the display to original factory settings for color, brightness, phase, and clock.

Shows the current resolution and refresh rate;

7. Information

8. Exit Closes the OSD window.

Shows the serial number of display; shows the power-on time, and the power-saving time.

4. Input/Output Specification

4.1 Input Signal Connector

4.1.1 Analog D-SUB Connector

HP Mannequin (f1503) Service Manual

MNEMONIC

SIGNAL

1 RV Red Video

2 GV Green Video

3 BV Blue Video

4 NC

None (available for mfg use if required)

5 GND Ground (DDC Return)

6 RG Red GND

7 GG Green GND

8 BG Blue GND

9 +5 V +5 V (from PC)

10 SG Sync Ground

11 NC None (available for mfg use if

required)

12 SDA DDC Data

13 HS Horizontal Sync

14 VS Vertical Sync

15 SCL DDC Clock

VGA connector layout

PIN 1

PIN 11

PIN 5

4.2 Factory Preset Display Modes

HP Mannequin (f1503) Service Manual

Prese

Pixel

Format

Horz

Freq

(KHz)

Horz

Polarit

Vert

Freq

(Hz)

Vert

Polarity Pixel Clk

(MHz) Source

1 640 x 350 31.469 + 70.086 - 25.175 VGA

2 640 x 480 31.469 - 59.940 - 25.175 VGA

3 640 x 480 37.500 - 75.000 - 31.500 VESA

4 720 x 400 31.469 - 70.087 + 28.322 VGA

5 800 x 600 37.879

60.317 + 40.000 VESA

6 800 x 600 46.875 + 75.000 + 49.500 VESA

7 1024 x 768 48.363 - 60.004 - 65.000 VESA

8 1024 x 768 56.476 - 70.069 - 75.000 VESA

9 1024 x 768 60.023 + 75.029 + 78.750 VESA

HP Mannequin (f1503) Service Manual

)

4.3 Power Supply Requirements

4.3.1 Input Requirements PARA METER RANGE CONDITION

Input Voltage 90 to 264 VAC RMS Universal input full range Input Frequency 60Hz @ 90VAC to 60Hz @

264VAC

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 reachedwithin 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

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

Input Fusing Fuse should be located internal to the

adapter, easily accessible when the

cover is removed Leakage Current Less than 3.5 mA Input voltage 264 Volts RMS ; 50 Hertz Hi-Pot Primary to secondary 1.5KVAC for 1 Minute(leakage current 10mA)

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

Phase(0, 90, 180, 270 degree)

Phase(0, 90, 180, 270 degree) Fuse must be UL/CSA approved. Fuse value must no have to change for 115 VAC or 230 VAC operation

1.8KVAC for 1 Minute(leakage current 10mA)

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

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

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

Output current

rotection

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

Less than 0.5 mA Input voltage 254 Volts RMS ; 50 Hertz

Any frequency up to 250Hz(duty

50%)

less than 7.0A, more than 12.0A

at 12.0VDC

±5% for 10% to 100%, 100% to 10% load change for

+12Vdc

* Ripple and noise are measured.

Current exceeds maximum rating more than 20%

4.4 PANEL SPECIFICATION (Hannstar)

4.4.1 Panel Feature

-High contrast ratio

-TN+film (Twisted Nematic) mode

-Wide viewing angle

-XGA (1024 x 768 pixels) resolution

-2 dual CCFTs(Cold Cathode Fluorescent Tube)

-COMPACT SIZE DESIGN

4.4.2 Display Characteristics

Items Specification Unit

Display Area 304.1(H) x 228.1(V) mm Display color 6 bit dirver Colors Number of pixels 1024 x 768 pixel Pixel Arrangement RGB vertical stripe Pixel pitch 0.297(H) x 0.297(V) mm Display Mode Normally White

HP Mannequin (f1503) Service Manual

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)

Response Time

White Luminance at CCFL 6mA (Center of screen)

Color Chromaticity(CIE 1931)

Viewing angle

Brightness Uniformity Buni Crosstalk [%]

Rising

Falling Tf - -

Hor.

Ver.

C/R

Normal

YL 200 250 - cd/m

Ry 0.335 Gx 0.293 Gy 0.599

Bx 0.144

By 0.113 Wx 0.310 Wy 0.330

ΘR 55 65 -

40 45 -

ΘD 50 55 -

ψ=0 degree

θ=0 degree

Viewing

Angle

CR>10

ψ=0 degree

θ=0 degree

300 400 -

Typ.

-0.03

55 65 -

70 75 -

- - 1.3

Tr+Tf=35

0.623

Typ.

+0.03

msec

4.4.4 Parameter guide line for CCFL Inverter

HP Mannequin (f1503) Service Manual

5. Block Diagram

5.1 Monitor Exploded View

5.1.1 f1503

HP Mannequin (f1503) Service Manual

5.1.2 f1503

HP Mannequin (f1503) Service Manual

9 141113

1516

1719

5.2 Software Flow Chart

eeprom. Check the pin PANEL1 and PANEL2

Turn on the LED and set it to green color.

Scalar initializes.

any signals coming?

digital port?

standby mode after the message disappear.

mode.

1) MCU initialize.

2) Is the eeprom blank?

3) Program the eeprom by default values.

4) Get the PWM value of brightness from

to tell which panel to get with it.

5) Is the power key pressed?

6) Clear all global flags.

7) Are the AUTO and SELECT keys pressed?

8) Enter factory mode.

9) Saving the power key status into eeprom.

10) In standby mode?

11) Update the lifetime of back light.

12) Check the analog and digital port, are there

13) Does the scalar send out a interrupt request?

14) Wake up the scalar.

15) Are there any signals coming from analog or

16) Display "No Signals" message. And go into

17) Program the scalar to be able to show the coming

18) Process the OSD display.

19) Read the keyboard. Is the power key pressed?

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