Sevice Manual Monitor HP-L1706-TSUM16AL

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Manual service monitor HP l1706

Text of Sevice Manual Monitor HP-L1706-TSUM16AL

  • 17" LCD Color Monitor HP L1706

    1

    Service Service Service

    Horizontal Frequency

    30- 83 kHz

    TABLE OF CONTENTS Description Page Description Page

    SAFETY NOTICE

    ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS

    AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC

    EQUIPMENT CONTAINING HIGH VOLTAGES.

    Table Of Contents.............................................1

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

    1. Monitor Specification......................................3

    2. LCD Monitor Description.......4

    3. Operation Instruction..........................5

    3.1. General Instructions......................................5

    3.2. Control Button..............................5

    3.3 Adjusting the Picture.......................................6

    4. Input/Output Specification........................7

    4.1. Input Signal Connector.............................7

    4.2. Factory Preset Display Modes........................8

    4.3. Power Supply Requirements...............................9

    5. Panel Specification.......................10

    5.1. General Feature.......................10

    5.2. Optical Characteristics11

    5.3 Parameter guide line for CCFL Inverter..13

    6. Block Diagram...................................15

    6.1. Monitor Exploded View...........15

    6.2 Software Flow Chart..16

    6.3. Electrical Block Diagram.........18

    7. Schematic......................................20

    7.1 Main Board...........................................20

    7.2 Power Board......................................24

    8.PCB Layout.........................................26

    8.1. Main Board........................................26

    8.2. Power Board.......................................28

    8.3. Key Board...................................31

    9. Maintainability.......................................32

    9.1. Equipments and Tools Requirement..............32

    9.2. Trouble Shooting..............................33

    10. White-Balance, Luminance adjustment...39

    11. BOM List.....................................................40

    12. Different Parts List..................................52

    CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

  • 17" LCD Color Monitor HP L1706

    2

    Revision List

    Version Date Revision History TPV Model Name

    A00 Apr.-04-2007 first release T76CM9DKAKHPNE

    T76GM9DKAKHPNE A01 May.-08-2007 Add TPVDW Model in Item 12

    T76GM9DPAKHPNE

    A02 Jun.-07-2007 Add TPVDW Model in Item 12 T76SM9DKAKHPNE

    A03 Jun.-19-2007 Add TPVDW Model in Item 12 T76CM9DPAKHPNE

    A04 Sep.-26-2007 Add TPVDW Model in Item 12 T76GM9DBAKHFNNE

    A05 Oct.-10-2007 Add TPVDW Model in Item 12 T76SM9DBAKHFNNE

    A06 Oct.-16-2007 Add TPVDW Model in Item 12 T76SM9DAAKHANNE

    A07 Oct.-18-2007 Add TPVDW Model in Item 12 T76CM9DBAKHFNNE

    A08 Nov.-01-2007 Add TPVDW Model in Item 12 T76GM9DNAKHANNE

    T76SM9DKAKHPN1E A09 Nov.-09-2007 Add TPVDW Model in Item 12

    T76SM9DPAKHPNE

    A10 Dec.-09-2007 Add Second Panel in Item 5 LTM170EUL31-8TM

  • 17" LCD Color Monitor HP L1706

    3

    1. Monitor Specification

  • 17" LCD Color Monitor HP L1706

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    2. LCD Monitor Description The LCD Monitor will contain main board, power board, key board and an audio 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.

    Video signal, DDC

    Power Board

    (Include adapter and inverter)

    Flat Panel and

    CCFL backlight

    Main Board

    Audio board

    RS232 Connector

    For white balance

    adjustment in

    factory mode

    HOST Computer

    CCFT Drive.

    AC-IN

    110V-240

    Monitor Block Diagram

    Key board

  • 17" LCD Color Monitor HP L1706

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    3. Operation Instructions 3.1 General Instructions

    Press 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

  • 17" LCD Color Monitor HP L1706

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    3.3 Adjust the Picture Use the On-Screen Display (OSD) to adjust the screen image based on your viewing preferences. To access the OSD,

    do the following:

    1. If the monitor is not already on, press the Power switch to turn on the monitor.

    2. To access the OSD Menu, press the Menu button on the monitors front panel.

    3. To navigate through the OSD Menu, press the + (Plus) button on the monitors front panel to scroll up, or the

    (Minus) button to scroll in reverse.

    4. To select an item from the OSD Menu, use the + or buttons to scroll to and highlight your selection, then press the

    Menu button to select that function.

    5. Adjust the item using the + or buttons on the front panel to adjust the scale.

    6. After adjusting the function, select Save and Return, or Cancel if you dont want to save the setting, then select Exit

    from the Main Menu.

    If the buttons remain untouched for 10 seconds while displaying a menu, new adjustments will be discarded and the

    settings will revert to previous settings and exit the menu.

  • 17" LCD Color Monitor HP L1706

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    4. Input/Output Specification 4.1 Input Signal Connector

    Pin Signal Pin Signal 1 Red Video 9 +5 V (from PC)

    2 Green Video 10 Ground

    3 Blue Video 11 Ground

    4 Ground 12 DDC-serial Data

    5 Detect Cable 13 Horizontal Sync

    6 Red GND 14 Vertical Sync

    7 Green GND 15 DDC-serial Clock

    8 Blue GND

    VGA connector layout

    PIN 1 PIN 5

    PIN 11

  • 17" LCD Color Monitor HP L1706

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    4.2 Factory Preset Display Modes

  • 17" LCD Color Monitor HP L1706

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    4.3 Power Supply Requirements

    Parameter Range

    AC Line Voltage range 100 to 240V

    AC Line Frequency range 47 to 63 Hz

    Peak surge Current < 55 A MAX AT 220VAC and cold starting

    Leakage Current < 3.5 mA

    Power Consumption 37W

  • 17" LCD Color Monitor HP L1706

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    5. Panel Specification 5.1 General Feature

    CLAA170EA07P

    LTM170EUL31-8TM

  • 17" LCD Color Monitor HP L1706

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    5.2 Optical Characteristics CLAA170EA07P

  • 17" LCD Color Monitor HP L1706

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    LTM170EUL31-8TM

  • 17" LCD Color Monitor HP L1706

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    5.3 Parameter guide line for CCFL Inverter TFT LCD Module:

    CLAA170EA07P

    LTM170EUL31-8TM

  • 17" LCD Color Monitor HP L1706

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    Back Light Unit:

    CLAA170EA07P

    LTM170EUL31-8TM

  • 17" LCD Color Monitor HP L1706

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    6. Block Diagram 6.1 Monitor Exploded View

  • 17" LCD Color Monitor HP L1706

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    6.2 Software Flow Chart

    1

    2

    N

    Y

    5

    Y

    N

    10

    Y

    N

    12

    Y

    N

    7

    Y

    N

    6

    4

    3

    8

    9

    14

    11

    13

    Y

    N

    15

    Y

    N16

    17

    19

    Y

    N 18

  • 17" LCD Color Monitor HP L1706

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    REMARK:

    1) MCU initialize.

    2) Is the EEprom blank?

    3) Program the EEprom by default values.

    4) Get the PWM value of brightness from EEprom.

    5) Is the power key pressed?

    6) Clear all global flags.

    7) Are the AUTO and SELECT keys pressed?

    8) Enter factory mode.

    9) Save the power key status into EEprom.

    Turn on the LED and set it to green color.

    Scalar initialize.

    10) In standby mode?

    11) Update the lifetime of back light.

    12) Check the analog port, are theyre any signals coming?

    13) Does the scalar send out an interrupt request?

    14) Wake up the scalar.

    15) Are there an