HP f1703 Service Manual
SERVICE MANUAL
17” 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 RE LIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
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HP f1703 Service Manual
Table of Contents
Table Of Contents -------------------------------------------------------------------------------------------------------------------- |
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1. Monitor Specifications ------------------------------------------------------------------------------------------------ |
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2. LCD Monitor Description ------------------------------------------------------------------------------------------------ |
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3. Operating Instructions --------------------------------------------------------------------------------------------- |
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3.1 |
General Instructions ----------------------------------------------------------------------------------------------- |
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3.2 |
Control Buttons ----------------------------------------------------------------------------------------------------- |
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3.3 Adjusting the Picture ----------------------------------------------------------------------------------------------- |
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4. Input/Output Specification ---------------------------------------------------------------------------------------------------------- |
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4.1 |
Input Signal Connector---------------------------------------------------------------------------------------------------------- |
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4.1.1 Analog D-SUB Connector --------------------------------------------------------------------------------------------------- |
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4.2 |
Factory Preset Display Modes --------------------------------------------------------------------------------------------------- |
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4.3 |
Power Supply Requirements ------------------------------------------------------------------------------------------------- |
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4.3.1 Input Requirements ------------------------------------------------------------------------------------------------------ |
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4.3.2 Output Requirements-------------------------------------------------------------------------------------------------------- |
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4.4 PANEL SPECIFICATION (Samsung) ------------------------------------------------------------------------------------ |
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4.4.1 Panel Feature -------------------------------------------------------------------------------------------------------------- |
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4.4.2 Display Characteristics -------------------------------------------------------------------------------------------------------- |
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4.4.3 Optical Characteristics ------------------------------------------------------------------------------------------------------- |
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4.4.4 Parameter Guide Line For CCFL Inverter ---------------------------------------------------------------------------- |
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5. Block Diagram ------------------------------------------------------------------------------------------------------------------- |
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5.1 |
Monitor Exploded View -------------------------------------------------------------------------------------------------------- |
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5.1.1 F1703 -------------------------------------------------------------------------------------------------------------------------- |
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5.2 |
Software Flow Chart -------------------------------------------------------------------------------------------------------------- |
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5.3 |
Electrical Block Diagram ----------------------------------------------------------------------------------------------------- |
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5.3.1 Main Board ------------------------------------------------------------------------------------------------------------------- |
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5.3.2 Inverter/Power Board ------------------------------------------------------------------------------------------------------- |
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6. Schematic ---------------------------------------------------------------------------------------------------------------------------- |
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6.1 |
Main Board ------------------------------------------------------------------------------------------------------------------- |
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6.2 |
Inverter/Power Board ------------------------------------------------------------------------------------------------------ |
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6.3 |
Keypad Board ------------------------------------------------------------------------------------------------------------------- |
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7. PCB Layout --------------------------------------------------------------------------------------------------------------------------- |
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7.1 |
Main Board ------------------------------------------------------------------------------------------------------------------- |
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7.2 |
Inverter/Power Board ------------------------------------------------------------------------------------------------------ |
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7.3 |
Keypad Board --------------------------------------------------------------------------------------------------------------------- |
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8. Maintainability --------------------------------------------------------------------------------------------------------------------- |
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8.1 |
Equipments And Tools Requirement ------------------------------------------------------------------------------------ |
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8.2 Trouble Shooting ------------------------------------------------------------------------------------------------------------- |
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8.2.1 Main Board ------------------------------------------------------------------------------------------------------------------- |
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HP f1703 Service Manual |
8.2.2 Power/Inverter Board |
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8.2.3 Keypad Board ------------------------------------------------------------------------------------------------------------- |
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8.3 Alignment Procedure ----------------------------------------------------------------------------------------------------- |
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8.4 |
EDIT Content -------------------------------------------------------------------------------------------------------------------- |
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8.5 |
Serial Number Format ------------------------------------------------------------------------------------------------------- |
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9. Part Lists -------------------------------------------------------------------------------------------------------------------------- |
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HP f1703 Service Manual |
1. MONITOR SPECIFICATIONS |
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Driving system |
TFT Color LCD |
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LCD Panel |
Size |
43.2cm(17.0") |
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Pixel pitch |
0.264mm( H )x 0.264mm( V ) |
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Viewable angle |
120˚ (H) 90˚ (V) |
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Response time (typ.) |
25 ms |
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Video |
Analog |
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Input |
Sync. Type |
H/V TTL |
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H-Frequency |
30kHz – 83kHz |
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V-Frequency |
56-76Hz |
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Display Colors |
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16.2 million Colors |
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Dot Clock |
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108MHz |
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Max. Resolution |
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1280 x 1024 |
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Plug & Play |
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VESA DDC2BTM |
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Power Consumption |
ON Mode |
<48W |
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(Speakers Connected) |
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ON Mode |
<36W |
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(Without Speakers) |
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OFF Mode |
<2W |
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(Audio Volume=0) |
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Maximum Screen Size |
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Horizontal : 13.3”(337.92mm) |
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Vertical : 10.6”(270.336mm) |
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Power Source |
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90~264VAC,47~63Hz |
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Environmental |
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Operating Temp: 5°C to 35°C |
Considerations |
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Storage Temp.: -20°C to 60°C |
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Operating Humidity : 20% to 80% |
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Weight (N. W.) |
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F1703 |
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5.5Kgs Unit (net) |
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HP f1703 Service Manual
2. LCD MONITOR DESCRIPTION
The LCD MONITOR will contain an main board, an inverter/power board, keypad board and external 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.
Monitor Block Diagram
CCFT Drive. |
Flat Panel and |
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CCFL backlight |
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Inverter Board |
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RS232 Connector |
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(with DC-DC module) |
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Main Board |
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For white balance |
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adjustment in |
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factory mode |
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Keyboard |
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AC-IN |
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ADAPTER |
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HOST Computer |
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90V-264V |
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Video signal, DDC |
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HP f1703 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.
3.2CONTROL 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:
Blue |
— Power On mode. |
Amber |
— Power Saving mode. |
Blank |
—Power Off Mode. |
CONTROL Buttons
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HP f1703 Service Manual
3.3 ADJUSTING THE PICTURE
1. |
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Brightness/ |
Adjust the brightness or the difference between the light and |
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Contrast |
dark area. |
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Adjust the: |
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z |
horizontal position of the screen image. |
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Image Control |
z |
vertical position of the screen image. |
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z |
frequency of the pixel clock to minimize vertical bar. |
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z |
phase value to minimize horizontal jitters. |
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Displays a sub-menu with two option: |
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z |
Color: adjusts the color tint of white, and the red, |
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Advance |
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green, and blue (RGB) mix for colors. |
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z |
OSD (on Screen Display) settings: adjusts the |
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position, timeout, and notification features of the On |
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Screen Display window. |
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Auto |
Adjusts the main settings and produces a stable, centered |
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Configuration |
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image. |
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Factory |
Resets the display to original factory settings for color, |
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settings |
brightness, phase, and clock. |
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Language |
Shows the language of the OSD window. |
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Shows the current resolution and refresh rate; |
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Information |
Shows the serial number of display; shows the power-on |
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time, and the power-saving time. |
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Exit |
Closes the OSD window. |
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HP f1703 Service Manual
4. Input/Outpt Specification
4.1 Input Signal Connector
4.1.1 Analog D-SUB Connector
PIN |
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 |
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required) |
12 |
SDA |
DDC Data |
13 |
HS |
Horizontal Sync |
14 |
VS |
Vertical Sync |
15 |
SCL |
DDC Clock |
VGA connector layout
PIN 1 |
PIN 5 |
PIN 11 |
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HP f1703 Service Manual
4.2 Factory Preset Display Modes
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Horz |
Horz |
Vert |
Vert |
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Prese |
Pixel |
Freq |
Polarit |
Freq |
Polarit |
Pixel Clk |
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Format |
(KHz) |
y |
(Hz) |
y |
(MHz) |
Source |
1 |
640 x 350 |
31.469 |
+ |
70.086 |
- |
25.175 |
VGA |
2 |
640 x 480 |
31.469 |
- |
59.940 |
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25.175 |
VGA |
3 |
640 x 480 |
37.500 |
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75.000 |
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31.500 |
VESA |
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4 |
720 x 400 |
31.469 |
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70.087 |
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28.322 |
VGA |
5 |
800 x 600 |
37.879 |
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60.317 |
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40.000 |
VESA |
6 |
800 x 600 |
46.875 |
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75.000 |
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49.500 |
VESA |
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7 |
1024 x 768 |
48.363 |
- |
60.004 |
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65.000 |
VESA |
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1024 x 768 |
56.476 |
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70.069 |
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75.000 |
VESA |
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1024 x 768 |
60.023 |
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75.029 |
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78.750 |
VESA |
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10 |
1280 x |
63.981 |
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60.02 |
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108.0 |
VESA |
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1024 |
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11 |
1280 x |
79.976 |
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75.035 |
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135.0 |
VESA |
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1024 |
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HP f1703 Service Manual
4.3 Power Supply Requirements
4.3.1 Input Requirements
PARAMETER |
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RANGE |
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CONDITION |
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Input Voltage |
90 to 264 VAC RMS |
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Universal input full range |
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Input Frequency |
60Hz @ 90VAC |
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50Hz @ |
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264VAC |
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Input Current |
Less than 2.0 Amps RMS |
Input voltage 100 VAC RMS ; 60 Hertz. Parameter |
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must be reached within 3 seconds of turn-on. |
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Less than 1.0 Amps RMS |
Input voltage 220 VAC RMS ; 50 Hertz. Parameter |
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must be reached within 3 seconds of turn-on. |
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Input Power |
Less than 75 Watts |
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Power factor > 0.5 |
Input voltage 120 VAC RMS ; 60 |
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Hertz |
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Inrush Current |
Less than 30 A peak |
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Input voltage 100 VAC RMS ; 60 Hertz at all |
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Phase(0, 90, 180, 270 degree) |
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Less than 50 A peak |
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Input voltage 240 VAC RMS ; 50 Hertz at all |
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Phase(0, 90, 180, 270 degree) |
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Input Fusing |
Fuse should be located internal to the |
Fuse must be UL/CSA approved. Fuse value must no |
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adapter, easily accessible when the |
have to change for 115 VAC or 230 VAC operation |
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cover is removed |
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Leakage Current |
Less than 3.5 mA |
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Input voltage 264 Volts RMS ; 50 Hertz |
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Hi-Pot |
Primary to secondary |
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1.5KVAC for 1 Minute(leakage current 10mA) |
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1.8KVAC for 1 Minute(leakage current 10mA) |
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3.0KVAC for 1 Minute(leakage current 10mA) |
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without Y-cap & Coupling cap. |
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Primary to Saft Ground |
1.5KVAC for 1 Minute(leakage current 10mA) |
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1.8KVAC for 1 Minute(leakage current 10mA) |
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4.3.2 Output Requirements |
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PARAMETER |
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RANGE |
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CONDITION |
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DC Out |
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12VDC ± 5% |
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Min 0A Max 3.75A |
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Load Regulation |
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12.0V(12.12V) ± 5% |
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11.4 to 12.6VDC |
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Dynamic Load |
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Any frequency |
up |
to 250Hz(duty |
±5% for 10% to 100%, 100% to 10% load change for |
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Regulation |
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50%) |
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+12Vdc |
Ripple & noise |
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170mVpp at 12VDC |
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Input voltage : 100VAC at 60Hz 240VAC at 50Hz |
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* Ripple and noise are measured. |
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Output current |
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less than 7.0A, more than 12.0A |
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Current exceeds maximum rateing more than 20% |
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protection |
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at 12.0VDC |
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Leakage Current |
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Less than 0.25 mA |
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Input voltage 100 Volts RMS ; 50 Hertz |
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Less than 0.5 mA |
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Input voltage 254 Volts RMS ; 50 Hertz |
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HP f1703 Service Manual
4.4 PANEL SPECIFICATION (Samsung )
4.4.1 Panel 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
-COMPACT SIZE DESIGN
4.4.2 Display Characteristics
Items |
Specification |
Unit |
Display Area |
337.92(H) x 270.336(V) |
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Driver element |
a-Si TFT active matrix |
Colors |
Display color |
16.2M |
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Number of pixels |
1280 x 1024 |
pixel |
Pixel Arrangement |
RGB vertical stripe |
mm |
Pixel pitch |
0.264(H) x 0.264(W) |
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Display Mode |
Normally White |
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Surface treament |
Haze 25% , Hard-coating (3H) |
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4.4.3 Optical Characteristics
The optical characteristics are measured under stable conditions at 25 (Room Temperature):
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Symbol |
Conditions |
Min. |
Typ. |
Max. |
Unit |
Note |
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Contrast Ratio |
C/R |
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250 |
350 |
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(Center of screen) |
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Response |
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Rising |
Tr |
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5 |
7 |
msec |
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Time |
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Falling |
Tf |
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20 |
25 |
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Normal |
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Luminance of White |
YL |
200 |
250 |
- |
Cd/m2 |
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(Center of screen) |
ψ=0 |
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Rx |
θ=0 |
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0.633 |
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Color |
Ry |
Viewing |
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0.351 |
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Gx |
Angle |
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0.298 |
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Chromaticity |
Typ. |
TYP. |
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Gy |
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0.592 |
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-0.03 |
+0.03 |
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Bx |
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0.143 |
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Coordinates (CIE) |
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By |
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0.092 |
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Wx |
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0.316 |
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Wy |
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0.337 |
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Brightness Uniformity |
[%] |
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75 |
80 |
- |
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HP f1703 Service Manual
4.4.4 Parameter guide line for CCFL Inverter
INVERTER MAX BRINGTHNESS (Vadj:4.0v), LOAD=120KΩX4(ROOM TEMPERATURE 25 ±4 )
ITEM |
SYMBOL |
MIN. |
TYP. |
MAX. |
UNIT |
REMARK |
Input voltage |
Vin |
10.8 |
12 |
13.2 |
V |
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Input current |
Iin |
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2300 |
2550 |
mA |
FOR 4 LOAD |
Output Current |
Iout |
6.0 |
6.5 |
7.0 |
mA |
FOR 1 LOAD |
Frequency |
F |
52.0 |
57.0 |
62.0 |
KHZ |
FOR 1 LOAD |
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H.V open |
Vopen |
1500 |
1650 |
1800 |
Vrms |
NO LOAD |
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H.V Load |
Vload |
710 |
810 |
910 |
Vrms |
RL=120KΩ |
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Start voltage |
Vst |
1700 |
1850 |
2000 |
Vrms |
RL=CCFL |
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Protect delay time |
PDT |
0.4 |
1 |
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Sec |
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HP f1703 Service Manual
5. Block Diagram
5.1 Monitor Exploded View
5.1.1 f1703
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HP f1703 Service Manual
14
HP f1703 Service Manual
15
HP f1703 Service Manual
5.2 Software Flow Chart
1
2 Y 3
N
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5 N
Y
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7 N 8
Y
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N |
11 |
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Y |
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N 12 |
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13 |
N |
Y |
Y |
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14 |
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15 |
N 16 |
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Y |
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17 |
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N 19 |
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Y |
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HP f1703 Service Manual
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. Scaler initialize.
10)In standby mode ?
11)Update the life time of back light.
12)Check the analog and digital port, are there any signals coming ?
13)Does the scalar send out a interrupt request ?
14)Wake up the scalar.
15)Are there any signals coming from analog or digital port ?
16)Display "Check Video Cable" message. And go into standby mode after the message disappear.
17)Program the scalar to be able to show the coming mode.
18)Process the OSD display.
19)Read the keyboard. Is the power key pressed ?
17
HP f1703 Service Manual
5.3 Electrical Block Diagram
5.3.1 Main Board
LCD
Interface (CN3)
LVDS
THC63LVDM83A
(U2)
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ADE_SDA, |
Scalar ADE3000SX |
MCU |
ADE_SCL |
(Include ADC,OSD) |
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W78E65P |
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(U8) |
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(U1) |
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|
|
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|
|
|
|
|
|
|
EPR_SDA |
RXD |
|
Hsync, |
|
|||
|
|
|
|
|
||||||
|
|
|
|
Vsync |
|
|||||
|
|
|
EPR_SCL |
TXD |
RGB |
|
||||
|
|
|
|
|
|
|||||
OSD |
|
|
|
|
|
|
|
|
DB15_SDA, |
|
Control |
|
EEPROM |
|
|
|
D-Sub |
|
DB15_SCL |
EEPROM |
|
Interface |
|
24C16 |
|
|
|
Connector |
|
|
24C02 |
|
(CN1) |
|
(U9) |
|
|
|
(CN1) |
|
|
(U2) |
|
|
|
|
|
|
|
|
|
|
|
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18