HP AOC F1703_HP_T783KSHHCZHAA Service Manual Enigmaelectronica

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HP F1703

SERVICE MANUAL17 LCD Monitor F1703

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.

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HP F1703 Table of Content Revision List ---------------------------------------------------------------------------------------------------------------------------1.Monitor Specification -------------------------------------------------------------------------------------------------------------2.LCD Monitor Description --------------------------------------------------------------------------------------------------------3.Operation Instructions -----------------------------------------------------------------------------------------------------------3.1 General Instructions -----------------------------------------------------------------------------------------------------------3.2 Control Button ------------------------------------------------------------------------------------------------------------------3.3 Adjusting The Picture ---------------------------------------------------------------------------------------------------------4. Input/Output Specification -----------------------------------------------------------------------------------------------------4.1 Input Signal Connector -------------------------------------------------------------------------------------------------------4.2 Factory Preset Display Modes ---------------------------------------------------------------------------------------------4.3 Power Supply Requirements ------------------------------------------------------------------------------------------------5.Panel Specification ------------------------------------------------------------------------------------------------------------------5.1 General Feature ----------------------------------------------------------------------------------------------------------------5.2 Optical Characteristics --------------------------------------------------------------------------------------------------------6. Block Diagram ---------------------------------------------------------------------------------------------------------------------6.1 Monitor Exploded View ------------------------------------------------------------------------------------------------------03 04 05 06 06 06 07 08 08 09 09 10 10 11 12 12 13 15 15 16 17 17 23 25 27 27 27 28 28 29 29 30 30 32 34 35 37 38

6.2 Software Flow Chart -----------------------------------------------------------------------------------------------------------6.3 Electrical Block Diagram ------------------------------------------------------------------------------------------------------6.3.1 Scalar Board ---------------------------------------------------------------------------------------------------------------6.3.2 Inverter/Power Board ----------------------------------------------------------------------------------------------------7. Schematic ---------------------------------------------------------------------------------------------------------------------------7.1Main Board 7.2 Inverter Board 7.3 Key Board -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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8. PCB Layout -------------------------------------------------------------------------------------------------------------------------8.1 Main Board ----------------------------------------------------------------------------------------------------------------------8.2 Adapter Board -----------------------------------------------------------------------------------------------------------------8.3 Inverter Board ------------------------------------------------------------------------------------------------------------------8.4 Power Key Board --------------------------------------------------------------------------------------------------------------9. Maintainability ----------------------------------------------------------------------------------------------------------------------9.1 Equipments and Tools Requirements -------------------------------------------------------------------------------------9.2 Trouble Shooting ---------------------------------------------------------------------------------------------------------------9.2.1 Main Board 9.2.2 Inverter Board -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

9.2.3 Key Pad Board ------------------------------------------------------------------------------------------------------------10. White-Balance, Luminance Adjustment ---------------------------------------------------------------------------------

11. EDID Content ---------------------------------------------------------------------------------------------------------------------12. BOM List -----------------------------------------------------------------------------------------------------------------------------

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Revision List Version A00 Date Mar.-06-06 Revision History Initial release TPV Mode Name T783KSHHCZHAA

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1.Monitor SpecificationItems Driving system Panel Size (Active Area) LCD Panel Pixel pitch Viewable angel Response time (typ.) Contrast Ratio Video Input Sync. Type H-Frequency V-Frequency Display Colors Dot Clock Max. Resolution Plug & Play 16.2 million Colors 140 MHz 1280 x 1024 VESA DDC2BTM ON Mode Power Consumption Sleep Mode OFF Mode Power Source Environmental Considerations Altitude 90~264VAC,47~63Hz Operating Temp: 5C to 35C Storage Temp.: -20C to 60C Operating Humidity : 20% to 80% Operating 0 to 12,000 feet 50W 2W 2W Description TFT Color LCD LTM170EU-L11 337.920(H) x270.336 (V) 0.264mm( H )x 0.264mm( V ) 150 (H) 135 (V) (CR10) 13 ms 500:1 Analog H/V T TL 30kHz 83kHz 56-76Hz

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2.LCD Monitor DescriptionThe LCD Monitor will contain a main board, a power board, and a key board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.

Monitor Block Diagram

CCFT Drive.

Flat Panel and CCFL backlight

Power Board (Include adapter and inverter)

Main Board

RS232 Connector For white balance adjustment in

Keyboard

factory mode

Video signal, DDC AC-IN90V-264V

HOST Computer

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3. Operation Instructions3.1 General InstructionsPress the power button to turn the monitor on or off. The other control buttons are located at front of the panel. 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 Green.

3.2 Control Buttons

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Power Button: When pressed, the monitor enters the off mode, and the LED turns blank. Press again to restore normal status. Auto Adjust Key: The Auto Adjust Key is used to automatically set the H Position, V Position, Clock and Phase. Left / Right Button: The Left/Right Button is used to control the monitor functions. Press to switch functions or adjust settings. Power Indicator: Blue Power On mode. Amber Power Saving mode. Blank Power Off Mode.

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3.3 Adjust the Picture

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4. Input/Output Specification4.1 Input Signal Connector

Pin 1 2 3

Mnemonic RV GV BV

Signal Red Video Green Video Blue Video Noneavailable for mfg use if required Ground (DDC Return) Red GND Green GND Blue GND

Pin 9 10 11

Mnemonic +5 V SG NC

Signal +5 V (from PC) Sync Ground None (available for mfg use if required) DDC Data Horizontal Sync Vertical Sync DDC Clock

4 5 6 7 8

NC GND RG GG BG

12 13 14 15

SDA HS VS SCL

VGA connector layoutPIN 1 PIN 5

PIN 11

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4.2 Factory Preset Display Modes

Pixel Preset 1 2 3 4 5 6 7 8 9 10 11 Format 640 x 350 640 x 480 640 x 480 720 x 400 800 x 600 800 x 600 1024 x 768 1024 x 768 1024 x 768 1280 x 1024 1280 x 1024

Horz Freq (KHz) 31.469 31.469 37.500 31.469 37.879 46.875 48.363 56.476 60.023 63.981 79.976

Horz Polarity + + + + + +

Vert Freq (Hz) 70.086 59.940 75.000 70.087 60.317 75.000 60.004 70.069 75.029 60.02 75.035

Vert Polarity + + + + + +

Pixel Clk (MHz) 25.175 25.175 31.500 28.322 40.000 49.500 65.000 75.000 78.750 108.0 135.0 Source VGA VGA VESA VGA VESA VESA VESA VESA VESA VESA VESA

4.3 Power Supply Requirements

Parameter AC Input Voltage AC Input Frequency Inrush Current Leakage Current Power consumption

Range 90 to 265V 47 to 63 Hz 50A MAX AT 220VAC and 30A AT 120VAC 3.5 mA @264 VAC and 50Hz 50W

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5. Panel Specification5.1 General 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 - LVDS (Low Voltage Differential Signaling) interface (2pixel/clock) - Compact Si