Philips SH4 HP L1740 Service Manual
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Philips SH4 HP L1740 Service Manual

Philips SH4 HP L1740 Service Manual

17" lcd colour monitor
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17" LCD Colour Monitor
Service
Service
Service
Description
Important Safety Notice---- -------------------------- 2
Technical Data --------------------------------------3~6
Installation/On Screen Display-------------------7~10
Warning Message-------------------------------------11
Factory Mode------------------------------------------12
Flat Panel adjust--------------------------------------13
Trouble shooting--------------------------------------14
Mechanical Instructions-------------------------15~16
Definition of pixel defects----------------------------17
Electrical Instructions---------------------------18~19
Failure mode of panel---------------------------------20
Display adjustment-----------------------------------21
Safety test requirements-----------------------------22
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.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
Published by BCU Monitors
Printed in Suzhou

TABLE OF CONTENTS

Page
DDC Instructions/DATA-------------------------23~31
ISP Instructions---------------------------------32~34
Repair tips/Repair Flow chart------------------35~38
Wiring Diagram---------------------------------------39
Function Block----------------------------------------40
Scaler Diagram----------------------------------41~45
Scaler Board C.B.A------------------------------46~47
Power Diagram ----------.-----------------------49~54
Exploded View--------------------------------------- 55
Recommended/Spare parts list----------------56~58
General product specification------------------59~90
Different parts list------------------------------------91
SAFETY NOTICE
Copyright reserved
Subject to modification F Nov .11 2004
SH4 HP L1740
CJ6B50/76
CJ6B50/02
Horizontal frequencies
30 - 83 kHz
Page
GB
3138 106 10438

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Summary of Contents for Philips SH4 HP L1740

  • Page 1: Table Of Contents

    17" LCD Colour Monitor SH4 HP L1740 Service Service Service CJ6B50/76 CJ6B50/02 Horizontal frequencies 30 - 83 kHz TABLE OF CONTENTS Description Page Description Page Important Safety Notice---- -------------------------- 2 DDC Instructions/DATA-------------------------23~31 Technical Data --------------------------------------3~6 ISP Instructions---------------------------------32~34 Installation/On Screen Display-------------------7~10...

  • Page 2: Important Safety Notice

    Philips. - If the surface ofpanel become dirty, please wipe it off with a soft Philips assumes no liability, express or implied, arising out of material. (Cleaning with a dirty or rough cloth may damage the any unauthorized modification of design.

  • Page 3: Technical Data

    Technical Data HP L1740 Go to cover page "...
  • Page 4 Technical Data(Continued) HP L1740 Go to cover page 2. Electrical characteristics and performance Test signal and test method in accordance with test instructions sheet 161 of the product where applicable. 2.1 Actual display size: 337.920 x 270.336 mm 2.2 Resolution 1.Factory Preset modes (15 modes) Resolution H-Frequency Pixel rate...
  • Page 5 Technical Data(continued) HP L1740 Go to cover page 2.13 2.14 2.12...
  • Page 6 Technical Data(Continued) HP L1740 Go to cover page...

  • Page 7: Rear Panel Components

    Installation HPL 1740 Go to cover page 3. For analog operation, connect one end of the VGA signal cable to the VGA connector on the monitor 1, and the other Rear Panel Components end to the VGA connector on the computer 2. Component Function Connecting the VGA Signal Cable...

  • Page 8: Installation/On Screen Display

    On Screen Display HP L1740 Go to cover page Front Pan el Controls BASIC OSD MENU LEVEL S Control Function Auto Adjust Activates the auto adjustment feature for optimum image Menu Opens the On-Screen Display (OSD) menu – (Minus) If OSD is on, press to navigate backward through the OSD menu features and decrease adjustment levels.
  • Page 9 On Screen Display HPL 1740 Go to cover page ADVANCED OSD MENU LEVELS Analog Mode Menu Menu Level 1 Menu Level 2 Menu Level 3 Factory Reset? Brightness ADJ Scale Y (90) Contrast ADJ Scale Y (80) " " Image Control Auto Adjustment ( Adjusting message) Y (no FD)
  • Page 10 On Screen Display HP L1740 Go to cover page Digital Mode Menu Menu Level 1 Menu Level 2 Menu Level 3 Factory Reset? Brightness ADJ Scale Y (90) Contrast ADJ Scale Y (80) Color 9300 K 6500 K Y (FD) Custom Color Custom Color ADJ SRGB...

  • Page 11: Warning Message

    Warning Message HPL 1740 Go to cover page Item Attention Signals Display Time Condition Input Signal out of Range See section power saver No Input Signal See section power saver Going to Sleep See section power saver Adjusting Auto hot key or OSD menu function "...

  • Page 12: Factory Mode

    Lock/Unlock,Aging, Service/Factory Mode HP L1740 Go to cover page Front control panel Access Factory Mode Power off on the monitor, To hold Auto " 1 " + " + " " 4 " buttons at the same time , And press POWER button to power on the monitor.

  • Page 13: Flat Panel Adjust

    Flat Panel Adjust HP L1740 Go to cover page HP ADJUSTMENT PATTERN.EXE VERSION: 2.00 Rev A OPERATING SYSTEM(S): Microsoft Windows 98 Microsoft Windows Millennium Edition (ME) Microsoft Windows 2000 Microsoft Windows XP 32-bit Personal Microsoft Windows XP 32-bit Professional DESCRIPTION : This CD contains the HP Auto-Adjustment utility, which is a single pattern program designed to help improve the picture quality of your HP flat panel monitor.

  • Page 14: Trouble Shooting

    Trouble shooting HP L1740 Go to cover page The following table lists possible problems, the possible cause of each problem, and the recommended solutions. Problem Possible Cause Solution Screen is blank. Power cord is Connect the power cord. disconnected. Power switch on front Press the front panel power panel of the monitor is button.

  • Page 15: Mechanical Instructions

    Mechanical Instruction HPL 1740 Go to cover page Front view Fig.1 Fig.6 Back view Fig.2 Fig.7 Step 1.Remove the base Remove the four screws as Fig.2.Fig.3 Fig.3 Step 2. Remove the front cover as Fig.4~8. a. Use thin "I" type screwdriver to open the clicks on top sides as Fig.4 b .Use thin "I"...

  • Page 16: Mechanical Instructions

    Mechanical Instruction HP L1740 Go to cover page Step .4 Remove the Metal frame board remove the screws and then pull the metal frame with the direction as shown in Fig.10 Fig.11 Fig.10 Power board Fig.11 Control board Step 5. Remove the control , scaler and power board remove the screws and disconnect the connector as shown in Fig.11 In warranty, it is not allowed to disassembly the LCD panel, even the backlight unit defect.

  • Page 17: Definition Of Pixel Defects

    Definition of pixel defects HP L1740 Go to cover page LCD Monitor Quality and Pixel Policy The TFT monitor uses high-precision technology, manufactured according to HP standards, to guarantee trouble-free performance. Nevertheless, the display may have cosmetic imperfections that appear as small bright or dark spots.

  • Page 18: Electrical Instructions

    Electrical Instructions HP L1740 Go to cover page Table1 Preset Mode Resolution Resolution H-Frequency Pixel rate V-Frequency Comment (Hz) (MHz) 640X480 31.469K 25.175 59.940Hz 640X480 37.861K 31.5 72.809Hz VESA 640X480 37.5K 31.501 75Hz VESA 720X400 31.469K 28.322 70.087Hz 800X600 37.879K 60.317Hz VESA 800X600...
  • Page 19 Electrical Instructions HP L1740 Go to cover page Use Minolta CA-110 for color coordinates and luminance check. Luminance is > 200 Nits in the center of the screen when brightness at 100% and contrast set to 100% at 6500°K color temperature. Adjustment of WHITE-D for sRGB (B) Apply a 1280*1024 / 60Hz signal with white pattern, then adjust the R, G, B Sub- Gain, for the screen center, the 1931 CIE...

  • Page 20: Failure Mode Of Panel

    Failure Mode Of Panel HP L1740 Go to cover page Quick reference for failure mode of LCD panel this page presents problems that could be made by LCD panel. It is not necessary to repair circuit board. Simply follow the mechanical Polarizer has bubbles instruction on this manual to eliminate failure by replace LCD panel.

  • Page 21: Display Adjustment

    Display adjustment HPL 1740 Go to cover page Clear image Alignment procedure 1. Turn on HP L1740 LCD monitor. 2.Turn on the Timing/pattern generator. See Fig.1 Resolution :1280x1024 Timing : H= 31.47KHz V=60Hz 3. Preset LCD color Analyzer CA-110 Measurement/viewing selector -Remove the lens protective cover of probe CA-A30.

  • Page 22: Safety Test Requirements

    HP L1740 Go to cover page 3. Equipments and Connection All units that are returned for service or repair must pass the original manufactures safety tests. Safety testing requires both Hipot Ground Continuity testing. 3.1. Equipments For example : HI-POT TEST INSTRUCTION - ChenHwa 9032 PROGRAMMABLE AUTO SAFETY TESTER 1.Application requirements...

  • Page 23: Description Ddc Instructions/Data

    HP L2025 HP L1740 HP L2025 HP L2025 Go to cover page General Note: The alignment box has already build-in a batteries socket for DDC Data Re-programming Using batteries (9V) as power source. Pull out the socket by In case the DDC data memory IC or main EEPROM which storage all factory settings were replaced due to a defect, the serial numbers have remove four screws at the rear of box.
  • Page 24 HP L1740 Go to cover page Configuration and procedure Note 1: If the connection is improper, you will see the following error There are 2 chips contained OSD string, serial number..etc on the circuit board, main EEPROM which storage all factory message (as shown in Fig.
  • Page 25 HP L2025 HP L2025 HP L2025 HP L1740 Go to cover page Re-programming Analog DDC IC Step 3: Modify DDC data (verify EDID version, week, year) 1. Click (new function) icon from the tool bar, bring up Step 1: After initialize alignment box, connecting all cables and Step 1 of 9 as shown in Fig.
  • Page 26 HP L1740 Go to cover page 6. Click Next , bring up Fig. 24 3. Click Next , bring up Fig. 21. Fig.24 Fig.21 4. Click Next , bring up Fig. 22 7. Click Next , bring up Fig. 25 Fig.25 Fig.22 5.
  • Page 27 HP L2025 HP L1740 HP L2025 HP L2025 Go to cover page Step 5: Write DDC data 1. Configuration should be as Fig. 27. Fig.27 1730 Fig.29 2. Click . Save Step 8: Exit DDC program Pull down the File menu and select Exit as shown in Fig. 30. Access Factory Mode Power off on the monitor, To hold Auto...
  • Page 28 Go to cover page Re-programming Digital DDC IC 4. Click icon (Read EDID function) to read DDC EDID data from monitor. The EDID codes will display on screen as shown in Fig. 35. Step 1:Connecting all cables and alignment box as shown in Fig.
  • Page 29 HP L2025 HP L1740 HP L2025 HP L2025 Go to cover page Step 6: Write DDC data 1. Click (Write EDID) icon from the tool bar to write DDC data. 2. Click (Read EDID) to re-confirm (check contents) it. The 128bytes DDC data which had been written into DDC IC of Digital Mode.

  • Page 30: Ddc Data

    DDC Data HP L1740 Go to cover page Refresh Rate : 60 THE DISPLAY DATA CHANNEL (DDC_2B) CONTENT INCLUDING Detailed Timing #1 (FOR HP L1740 ANALOG) Pixel Clock (MHz) : 108 ********************************************************************** H Active (pixels) : 1280 EDID log file H Blanking (pixels) : 408 **********************************************************************...
  • Page 31 DDC Data HP L1740 Go to cover page (FOR HP L1740 Digital) H Active (pixels) : 1280 ********************************************************************** H Blanking (pixels) : 408 EDID log file V Active (lines) : 1024 ********************************************************************** V Blanking (lines) : 42 Vendor/Product Identification H Sync Offset (F Porch) (pixe ls): 48 ID Manufacturer Name : HP H Sync Pulse Width (pixels)

  • Page 32: Isp Instructions

    ISP CABLE for CPU HP L1740 Go to cover page Configuration and procedure ISP ( In System Program) software is provided by Genesis to upgrade the firmware of CPU. Fig.4 ISP cable is for the interface between "Parallel port of PC" and "15 pin-D-SUB connector of monitor.
  • Page 33 Go to cover page Update the firmware Double click the Gprobe.exe icon ,then appears window as shown in Fig.5 Press the options then choose configure Pin as shown in Fig.5 From the menu that appears, choose the number 17 in "output pin and the number 12 in "...
  • Page 34 ISP CABLE FOR CPU HP L1740 Go to cover page Fig.11 click "OPEN" Shut of the AC power Click the "OK" button and then open the AC power, after the follow window appears, the update is completed.

  • Page 35: Repair Tips/Repair Flow Chart

    HP L2025 HP L2025 HP L2025 Repair Tips HP L1740 Go to cover page 0. Warning preferably be equipped with a thermal control (soldering temperature: 225 to 250 C). All ICs and many other semi-conductors are susceptible to - The chip, once removed, must never be reused. electrostatic discharges (ESD).

  • Page 36: Repair Flow Chart

    X 21 HP L1740 Repair Flow Chart Go to cover page AC IN Power Board Control Board Scaler Board LCD Panel 5.0v No power 3.3v (power indicator off) Connector 1102 Check 12V/5V/3.3V Bad power board 3.3v Gnd 5.0v Bad Scaler Board Check Scaler Board Connector1503 Check Control Board...
  • Page 37 Repair Flow Chart HP L1740 Go to cover page Bad Power Power board Board Check scaler board...
  • Page 38 X 21 HP L1740 Repair Flow Chart Go to cover page Power board Check LCD Panel Control board Check scaler board...

  • Page 39: Wiring Diagram

    Wiring Diagram HPL1740 Go to cover page...

  • Page 40: Function Block

    HP L1740 Block Diagram Go to cover page EEPROM Control Key Function Board D2+/D2- USB 2.0 3.3V GL 850 D1+/D1- R+-/G+-/B+-/CLK+- R/G/B D0+/D0- Schmitter HS/VS gate DSUB_CA Scaler ISPSCL,SDA RXEC+/- Write_enable Gm5321 R+-/G+-/B+-/CLK+- RXE3+/- RXE2+/- RXE1+/- ADDR0/17, Data 0/7 RXE0+/- Flash Bank, ROM_OE/WE, Memory...
  • Page 41 HP L1740 Go to cover page...
  • Page 42 HP L1740 Go to cover page...

  • Page 43: Scaler Diagram

    Scaler Diagram-3 HP L1740 Go to cover page...
  • Page 44 HP L1740 Go to cover page...
  • Page 45 Scaler Diagram-5 HP L1740 Go to cover page...

  • Page 46: Scaler Board C.b

    HP L1740 Go to cover page...
  • Page 47 HP L1740 Go to cover page...

  • Page 48: Control Diagram & C.b

    HP L1740 Go to cover page...

  • Page 49: Power Diagram

    HP L1740 Power Diagram-1 Go to cover page AC/DC Schematic...
  • Page 50 Power Diagram-2 HP L1740 Go to cover page Inverter Schematic...
  • Page 51 Power Diagram-3 HP L1740 Go to cover page AC/DC Function Block Schematic...
  • Page 52 Power Diagram-4 HP L1740 Go to cover page Inverter Function Block Schematic...
  • Page 53 Power Diagram-5 HP L1740 Go to cover page Bottom Silk Screen Overlayer Bottom layer...
  • Page 54 HP L1740 Power Diagram-6 Go to cover page Bottom Silk Screen Overlayer...

  • Page 55: Exploded View

    Exploded View HP L1740...

  • Page 56: Recommended/Spare Parts List

    HP L1740 Go to cover page Model: HPL 1740 0030 313815758241 FRONT BEZEL ASSY 0041 313815414631 BACK COVER 0050 313815758191 STAND-HPL1740 0092 313815565791 FRONT COVER 0451 313815638711 CUSHION-R 0452 313815638721 CUSHION-L 0453 313815639141 P.E. BAG(EPE) 0456 313815639061 BASE P.E. BAG 0615 313811708001 HEX CODE OF F/W(NO MATL REQ)
  • Page 57 HP L1740 3202 212211805669 RST SM 0603 RC0603 10K PM5 R Model: HP L1740(AUO Panel) 2461 223878615649 CER2 0603 X7R 16V 100N PM10 R 3203 212211805669 RST SM 0603 RC0603 10K PM5 R 2501 223891015649 CER2 0805 X7R 25V 100N PM10 R Type:CJ6B50/76 3204 212211805669 RST SM 0603 RC0603 10K PM5 R...
  • Page 58 HP L1740 Go to cover page CONTROL ASSY 3613 232270464991 RST SM 0603 RC22H 499R PM1 R 3614 232270296001 RST SM 0603 JUMP. MAX 0R05 R 1932 242212803035 SWI TACT SM 1P 1POS SKQGAB R 1933 242212803035 SWI TACT SM 1P 1POS SKQGAB R 3615 212211805689 RST SM 0603 RC0603 1M PM5 R 3616...

  • Page 59: General Product Specification

    HP L1740 Go to cover page HP L1740 GENERAL PRODUCT SPECIFICATION . ANALOG AND DIGITAL DUAL INPUT . AUTO PICTURE ADJUSTMENT . 15 FACTORY PRESET MODES 10 USER MODES . USER FRIENDLY OSD DISPLAY FOR MODE IDENTIFICATION /ADJUSTMENT . DDC 2B COMMUNICATION CAPABILITY and DDC/CI SUPPORT .
  • Page 60 HP L1740 Go to cover page CONTENTS Foreword Product profile Scanning frequencies Video dot rate Power input Power consumption Dimensions Weight Functions Ambient temperature 2.10 Regulatory compliance Electrical characteristics Interface signals Interface 3.2.1 D-sub cable 3.2.2 DVI cable 3.2.3 OSD function control Timing requirement 3.3.1 Mode storing capacity...
  • Page 61 HP L1740 Go to cover page Mechanical characteristics Controls Unit dimension / weight Tilt and swivel base Transportation packages 5.4.1 Shipping dimension / weight 5.4.2 Block unit / palletization Environmental characteristics Susceptibility of display to external environment 6.1.1 Temperature ranges 6.1.2 Humidity 6.1.3...
  • Page 62 HP L1740 Go to cover page FOREWORD This specification describes a 17" SXGA multi-scan color TFT LCD monitor with max resolution up to 1280*1024 /76 Hz non-interlaced. PRODUCT PROFILE This display monitor unit is a color display monitor enclosed in HP styling cabinet, which has an integrated tilt and swivel base.
  • Page 63 HP L1740 Go to cover page Detachable Video Cables Audio Cable included VGA signal input DVI-D signal input DVI-I signal input VGA Cable included DVI cable included (-D or -I) S-Video / Composite Video # of Presets Horizontal Frequency Range 30 - 83 kHz Vertical Frequency Range 50 - 76 Hz...
  • Page 64 HP L1740 Go to cover page : 500:1 Contrast ratio. Luminance. : 300 cd/m (TYP.) Type NR. : M170EG01 V.1 (AUO) : 1280 (H) x 1024 (V) Number of Pixels. : 358.5(H)*296.5(V)*17.0(D) mm Physical Size. : 0.264 x 0.264 mm Pixel Pitch.
  • Page 65 HP L1740 Go to cover page Functions: (1) D-Sub analog R/G/B separate inputs, H/V sync separated (2) DVI-D digital Panel Link TMDS input (3) USB 2.0 HUB with one upstream port and two downstream port Ambient temperature: 5 °C - 35 °C 2.10 Regulatory compliance: EN 60950 (IEC 950): CB SCHEME CERTIFICATION:...
  • Page 66 HP L1740 Go to cover page Electrical characteristics Interface signals The input signals can be applied in two different modes: 1). D-shell Analog Input signal: Video, H-sync, V-sync, Video: 0.7 V p-p, input impedance, 75 ohm TTL level, input impedance 2k2 ohm termination Sync.
  • Page 67 T.M.D.S. clock- 3.2.3 OSD Function Control Philips follow up HP s requirement to create OSD function and HP approve the OSD function. If any deviation between SHT590 and customer specification and really product, production should follow up really product. OSD (On Screen Display) function...
  • Page 68 HP L1740 Go to cover page Brightness ADJ Scale Contrast ADJ Scale Auto Adjustment Advanced Menu Exit Digital Mode Menu Menu LEVEL 1 Menu LEVEL 2 Brightness ADJ Scale Contrast ADJ Scale Advanced Menu Exit Brightness & Contrast : brightness and contrast adjustment "...
  • Page 69 HP L1740 Go to cover page Mode Display On / Off Selection Sleep Timer Timer Set Menu Default Video Input - Analog - VGA - Digital - DVI Serial Number Display Monitor S/N Basic Menu Cancel Save and Return OSD Control Horizontal OSD Position ADJ Scale Vertical OSD Position...
  • Page 70 HP L1740 Go to cover page Default Video Input - Analog - VGA - Digital - DVI Serial Number Display Monitor S/N Basic Menu Cancel Save and Return OSD Control Horizontal OSD Position ADJ Scale Vertical OSD Position ADJ Scale OSD Timeout ADJ Scale Cancel...
  • Page 71 HP L1740 Go to cover page Display White Block Unlock EDID Write Cancel Save and Return Management Power Saver On / Off Selection Power On Recall On / Off Selection Mode Display On / Off Selection Sleep Timer Timer Set Menu Default Video Input - Analog - VGA - Digital - DVI...
  • Page 72 HP L1740 Go to cover page Save and Return Management Power Saver On / Off Selection Power On Recall On / Off Selection Mode Display On / Off Selection Sleep Timer Timer Set Menu Default Video Input - Analog - VGA - Digital - DVI Serial Number Display Monitor S/N...
  • Page 73 HP L1740 Go to cover page O (ms ) 16.683 (525 lines) 13.735(520 lines) 13.333 (500 lines ) 14.27(449 lines) P ( ms ) 0.064 ( 2 lines) 0.079(3 lines) 0.08 ( 3 lines ) 0.064(2 lines) Q (ms ) 1.049 ( 33 lines) 0.528(20 lines) 0.427 ( 16 lines )
  • Page 74 HP L1740 Go to cover page 0.124(6 lines) 0.106(6 lines) 0.05( 3 lines) 0.044 ( 3 lines) P ( ms ) Q (ms ) 0.600(29 lines) 0.514(29 lines) 0.446 ( 28 lines) 0.568( 39 lines) R ( ms ) 15.880(768 lines) 13.599(768 lines) 12.80 (768 lines) 12.678 (870 lines)
  • Page 75 HP L1740 Go to cover page Sync polarity : Positive or Negative Scanning frequency : 56 - 76 Hz Power input connection Power cord length : 1.8 M Power cord type : 3 leads power cord with protective earth plug. Power management STATUS H-sync...
  • Page 76 HP L1740 Go to cover page Contrast: 100% setting (gain = 1) Brightness:100% setting Color Temperature: 6500K Ambient Light: No ambient light (<10 lux) Meter: Microvision ss230 (or equivalent) Resolution Factory preset modes (15 modes) Resolution H-Frequency Pixel rate V-Frequency Comment (Hz) (MHz)
  • Page 77 HP L1740 Go to cover page Note : Screen displays perfect picture at 15 factory preset modes. Screen displays visible picture when input modes are other then 15 preset modes 4.3 Average Surface Brightness Use OSD to set 6500K or sRGB color temperature in 1280x1024/60Hz mode, measured by at screen center (position 5) with white pattern as Fig-1 Color Temperature Brightness control...
  • Page 78 HP L1740 Go to cover page There are three factory preset white color 9300K, 6500K and sRGB. Apply full white pattern, with brightness in 90 % position and the contrast control at 80 % position. The 1931 CIE Chromaticity (color triangle) diagram (x,y) coordinate for the screen center should be: 9300K CIE coordinates X = 0.283 +/- 0.020...
  • Page 79 HP L1740 Go to cover page 5.4.1 Shipping dimension/Weight Carton dimension. : 454(W) * 456(D) * 230(H) mm Gross weight. : 9.3 Kg 5.4.2 Block unit / Palletization It use two kind of pallets, which mixed into container (please sheet sheet 560) A type pallet: layers / block sets/layer...
  • Page 80 HP L1740 Go to cover page 6.2.1 Drop To measure the G-values, the instrumentation shall be placed on the center of the vesa plate of the Base. Standard HP Spc.109291 Height 76 cm 2 corner Drop Sequence 2 edge Test 6 face electrical function ok Test...
  • Page 81 HP L1740 Go to cover page 6.2.4 Non-Operating The unit should suffer minimal visible cosmetic damage or damage that presents a safety hazard, or impairs the setup and operation of the system after testing. Sinusoidal Vibration: 0.75 G zero-to-peak, 10 to 500 Hz, 0.5 octave / minute sweep rate. This requires one sweep, 10 to 500 to 10 Hz, along each of the three axes.
  • Page 82 HP L1740 Go to cover page Both of HP & Philips agree to follow up panel specification as inspection condition in business kick off stage, if any deviation between Sheet590 and customer specification, should follow up panel specification. 10.1 Visual Inspection The LCD panel shall be inspected with all pixels set to white, black, red, green, and blue.
  • Page 83 HP L1740 Go to cover page TABLE 3 OPTO-MECHANICAL DEFECTS VISUAL DEFECTS: (See Notes) COUNT REJECT 0.25 < D £ 0.60, N £ 3 Dark/White Spot D > 0.60 or N > 3 0.03 < W £ 0. 2, L £ 3.0, N £ 4 Bright Line (Light Lint) W >...
  • Page 84 HP L1740 Go to cover page Vertical Lines(s) On/Off Not Allowed S ³ 15 S < 15 Minimum Distance Between ANY Allowable Defects N £ 5 (all types) N > 5 Maximum No. of Allowable Defects Notes: Any bright or dark dots visible using the evaluation method described in section 6.6.4 are to be considered defects.
  • Page 85 HP L1740 Go to cover page Table 4 Defect Inspection Average Diameter Acceptable Number Minimum separation smaller of (L+W)/2 or L/20+2W <0.1mm Non countable 0.1 mm -0.3 mm 15 mm 0.31 mm - 0.5 mm 15 mm 0.51 mm - 1.25 mm 15 mm 1.26 mm - 2.5 mm 25.4 mm...
  • Page 86 HP L1740 Go to cover page Fig 1: Average Surface Brightness ,Position 5 = Screen center point L/10 W/10 Fig-2 HP Uniformity Test Pattern 2004-10-01 Alger Huang 2004-10-01...
  • Page 87 HP L1740 Go to cover page Fig-3 AUO Uniformity Test Pattern Fig-4 CPT Uniformity Test Pattern 8639 000 15861 2004-10-01 Alger Huang 2004-10-01...
  • Page 88 HP L1740 Go to cover page Fig-5 LPL Uniformity Test Pattern H/10 H : 337.920 mm V : 270.336 mm Active @ H,V : Active Area Fig-6 HP Cross Talk Test Pattern Area VIEW AREA VIEW AREA 768,192 (896,384) (896,384) Darkest gray pattern 768,576...
  • Page 89 HP L1740 Go to cover page SE PA RA T E SY NC . V ID E O H O R IZ O N TA L V ID E O V ER T IC AL C O M PO SIT E SY NC . V ID E O H O R IZ O N TA L F IG -4 T IM IN G C H A R T -1...
  • Page 90 HP L1740 Go to cover page VIDEO VERTICAL COMPOSITE SYNC. & VIDEO ( SYNC. ON GREEN ) HORIZONTAL VERTICAL FIG-5 TIMING CHART -2 2004-10-01 Alger Huang 2004-10-01...

  • Page 91: Different Parts List

    Different part list HP L1740 Diversity of CJ6B50/02 compared with CJ6B50/76 Item 12NC Description 863900015904 CJ6B50/02 1157 313812874931 MAINS CORD...
  • Page 92 4. When the HV circuitry is operating properly there is no possibility of an x- tube must be the same type as the original, including suffix letter, or a Philips radiation problem. High voltage should always be kept at the approved type.

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