HP L1506 Manuale utente

HP L1506 Service Manual

SERVICE MANUAL

15” LCD Monitor

L1506

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.

HP L1506 Service Manual

Table of Contents

Table of Contents --------------------------------------------------------------------------------------------------------------------------------- 02

Revision List---------------------------------------------------------------------------------------------------------------------------------------- 04

1.Product Feature----------------------------------------------------------------------------------------------------------------------------------05

2.LCD Monitor Description --------------------------------------------------------------------------------------------------------------------05

3.Operation Instructions -------------------------------------------------------------------------------------------------------------------------06

3.1 General Instructions -----------------------------------------------------------------------------------------------------------------------06

3.2 Control Button ----------------------------------------------------------------------------------------------------------------------------07

3.3 Adjusting The Picture -------------------------------------------------------------------------------------------------------------------07

4. Input/Output Specification ----------------------------------------------------------------------------------------------------------------- 09

4.1 Input Signal Connector -----------------------------------------------------------------------------------------------------------------09

4.2 Factory Preset Display Modes -------------------------------------------------------------------------------------------------------10

4.3 Power Supply Requirements ---------------------------------------------------------------------------------------------------------10

5.Panel Specification -------------------------------------------------------------------------------------------------------------------------11

5.1 General Feature --------------------------------------------------------------------------------------------------------------------------11

5.2 Optical Characteristics -----------------------------------------------------------------------------------------------------------------12

6. Block Diagram --------------------------------------------------------------------------------------------------------------------------------13

6.1 Monitor Exploded View--------------------------------------------------------------------------------------------------------------------13

6.2 Software Flow Chart-----------------------------------------------------------------------------------------------------------------------14

6.3 Electrical Block Diagram ---------------------------------------------------------------------------------------------------------------15

6.3.1 Scalar Board ------------------------------------------------------------------------------------------------------------------------15

6.3.2 Inverter/Power Board -------------------------------------------------------------------------------------------------------------16

HP L1506 Service Manual

7. Schematic --------------------------------------------------------------------------------------------------------------------------------------18

7.1 Main Board -------------------------------------------------------------------------------------------------------------------------------18

7.2 Power Board -----------------------------------------------------------------------------------------------------------------------------24

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

8.1 Main Board --------------------------------------------------------------------------------------------------------------------------------26

8.2 Inverter/Power Board -------------------------------------------------------------------------------------------------------------------27

8.3 Key board ---------------------------------------------------------------------------------------------------------------------------------28

9. Maintainability ---------------------------------------------------------------------------------------------------------------------------------29

9.1 Equipments and Tools Requirements ----------------------------------------------------------------------------------------------29

9.2 Trouble Shooting ------------------------------------------------------------------------------------------------------------------------30

9.2.1 Main Board ---------------------------------------------------------------------------------------------------------------------------30

9.2.2 Power/Inverter Board --------------------------------------------------------------------------------------------------------------33

9.2.3 Key Pad Board --------------------------------------------------------------------------------------------------------------------35

10. White-Balance, LuminanceAdjustment -------------------------------------------------------------------------------------------- 36

11. Check List after replacing LCD Main board -------------------------------------------------------------------------------------------37

12. EDID Content ----------------------------------------------------------------------------------------------------------------------------------41

13. BOM List ----------------------------------------------------------------------------------------------------------------------------------42～66

HP L1506 Service Manual

Revision List

Revision Date Change Description TPV Model name

A00 Jun-21-05 Initial release T560KC4DKHHPNP

1. Product Feature

LCD Panel Driving system TFT Color LCD

HP L1506 Service Manual

Panel CLAA150XP02

Size 38.1cm(15.0")

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

Viewable angle 130˚(H) 100˚(V)

Response time (typ.) <16 ms

Brightness(Min) 250

Contrast 400:1

Video Analog /Digital

Sync. Type H/V TTL

H-Frequency 30kHz – 63kHz

Input

V-Frequency 50-76Hz

Display Colors Over 16 million Colors

Dot Clock 80MHz

Max. Resolution 1024 x768

Plug & Play VESA DDC2BTM

Power Consumption ON Mode <23W

OFF Mode

<1W

Screen Size Horizontal : 306mm

Vertical : 230 mm

Environmental

Considerations

Operating Temp: 5°C to 35°C

Storage Temp.: -20°C to 60°C

Operating Humidity : 20% to 80%

Packaged(W*H*D) 395mm*395mm*155mm

MAIN DIMENSIONS Unpackaged(W*H*D) 340mm*355mm*203mm

Packaged ≤4.6Kg Unit

Weight (N. W.) Unpackaged ≤3.5Kg Unit

2. LCD Monitor Description

The LCD Monitor will contain main board, power board, key board and which house the flat panel control logic,

brightness control logic and DDC.

HP L1506 Service Manual

The power board will provideAC to DC Inverter voltage to drive the backlight of panel and the main board chips each

voltage.

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 VGAcard.

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

3.2 Control Buttons

-Power Button:

Video signal, DDC

Power Board

Flat Panel and

CCFL backlight

Main Board

Keyboard

RS232 Connector

For white balance

adjustment in

factory mode

HOST Computer

CCFT Drive.

DC-IN

12V

Monitor Block Diagram

HP L1506 Service Manual

When pressed, the monitor enters the off mode, and the LED turns blank. Press again to restore normal status.

-Left / Right Button:

When the OSD show on screen, Left/Right Button are used to control the monitor functions. Press to switch functions

or adjust settings. And if the OSD off, Left buttons is used to automatically set the H Position, V Position, Clock and

Phase.

-Power Indicator:

Green — Power On mode.

Orange — Power Saving mode.

Blank —Power Off Mode.

A. Menu button / Exit

B. Left/(Down) button /Auto button

C. Up button

D. Power button

3.3 Adjust the Picture

Manu Left/Down Right/Up Power

HP L1506 Service Manual

4. Input/Output Specification

4.1 Input Signal Connector

PIN MNEMONIC SIGNAL PIN MNEMONIC SIGNAL

1 RV Red Video 9 +3.3/+5 V +3.3/+5 V (from PC)

2 GV Green Video 10 SG Sync Ground

3 BV Blue Video 11 NC

None (Reserved for Factory

Use)

4 NC No Connect 12 SDA DDC Data

5 GND Ground (DDC

Return)&Cable Detect 13 HS Horizontal Sync

6 RG Red GND 14 VS Vertical Sync

7 GG Green GND 15 SCL DDC Clock

8 BG Blue GND

1. Brightness

Adjust the brightness.

2. Contrast Adjust the contrast

3. Image

Control

Adjust the:

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

zH-Position: horizontal position of the screen image.

zV-Position: vertical position of the screen image.

zClock: frequency of the pixel clock to minimize vertical bar.

zPhase: phase value to minimize horizontal jitters.

4. Color

z9300K: recall 9300K color

z6500K: recall 6500K color

zSRGB: recall SRGB color

zCustom Color: adjusts the color tint of white, and the red, green, and blue (RGB) mix

for colors.

5. Language Shows the language of the OSD window.

6. Management

zPower Saver: enable/disable power saving

zPower On Recall: enable/disable power recall

zMode Display: enable/disable mode display

zSleep Timer: set sleep timer

zBasic Menu: set to basic menu

7. OSD Control OSD (on Screen Display) settings: adjusts the H/V position, timeout, On Screen Display

window.

8. Information Current setting, recommended setting, serial number, total hours, backlight hours, Exit.

9. Factory

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

10. Exit Exit the current OSD window.

HP L1506 Service Manual

VGA connector layout

PIN 1 PIN 5

PIN 11

4.2 Factory Preset Display Modes

HP L1506 Service Manual

Preset

Pixel

Format

Horz Freq

(KHz)

Horz

Polarity

Vert Freq

(Hz)

Vert

Polarity

Pixel Clk

(MHz) Source

1 640 x 480 31.469 - 59.940 - 25.175 VGA

2 640 x 480 37.861 - 72.809 - 31.500 VESA

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 48.077 + 72.188 + 50.000 VESA

7 800 x 600 46.875 + 75.000 + 49.500 VESA

8 832 x 624 49.726 ± 74.551 ± 57.284 MAC

9 1024 x 768 48.363 - 60.004 - 65.000 VESA

10 1024 x 768 56.476 - 70.069 - 75.000 VESA

11 1024 x 768 60.023 + 75.029 + 78.750 VESA

12 1152 x 870 68.68 - 75.06 - 100.000 Mac

13 1152 x 900 71.71 - 76.05 - 105.561 Sun

14 1280 x 1024 63.98 + 60.02 + 108.000 VESA

15 1280 x 1024 79.97 + 75.02 + 135.000 VESA

4.3 Power Supply Requirements

PARAMETER RANGE

AC Input Voltage 90 to 265V

AC Input Frequency 47 to 63 Hz

Inrush Current 50A MAX AT 220VAC and 30AAT 120VAC

Leakage Current 5 mA MAX at 120VAC

Power consumption ≤23W

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