NEC MultiSync 20WGX2 Series Service Manual Download Page 131

Page: 131 / 143

8- 16

SYMBOL

For Europe

(Lite-on Part Number)

DESCRIPTION

D802A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

D805A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

D815A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

D817A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

I804A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

Q801A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

Q802A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

Q803A

7116230082P0A

SCREW_MACHINE_STAR_WASHER_PAN_M3_8L_NI

Q802C

7740201220P0A

NUT-STANDARD NUT-FLANGE HEX NUT

7742612430P0A

SUPPORT_PCB_PINGOOD_NYLON 94V0_NATURE_

7742612430P0A

SUPPORT_PCB_PINGOOD_NYLON 94V0_NATURE_

7742612430P0A

SUPPORT_PCB_PINGOOD_NYLON 94V0_NATURE_

7742612430P0A

SUPPORT_PCB_PINGOOD_NYLON 94V0_NATURE_

7742612430P0A

SUPPORT_PCB_PINGOOD_NYLON 94V0_NATURE_

7742612430P0A

SUPPORT_PCB_PINGOOD_NYLON 94V0_NATURE_

S601

6853011200P40

SWITCH_TACT_EVQWHA50K_PANASONIC

SW301

6853010800P

SWITCH_TACT_SFKQYMA2250T_FORWARD_SMD

SW601

6853001100P

SWITCH_TACT_SKHHAK2510_BLK 5mm

SW602

6853001100P

SWITCH_TACT_SKHHAK2510_BLK 5mm

SW603

6853001100P

SWITCH_TACT_SKHHAK2510_BLK 5mm

SW604

6853001100P

SWITCH_TACT_SKHHAK2510_BLK 5mm

T804

6131022400P

XFRMER_POWER_TPW_1141_ER2819_LSE PLI5005

T801

6131031700P

XFRMER_POWER_TPW-1142_ER2843_LSE_PLI5006

T806

6131043600P

XFRMER_POWER_TPW-1143_ER2834_LSE/PLI5007

MECHANICAL ASSY

6B01R

7742611313P0A

COVER_NMV_#6700+#6ABS 94V0

6B01T

7742611303P0A

COVER_NMV_#6700+#6ABS 94V0

6B01M

7742611330P0A

COVER_LENS COVER_NMV_NMV_A20BAL_PISA 20

6B01N

7742807581P0A

PUSH BUTTON_#6700/#6ABS 94V0_

6B01Q

7742807293P0B

PUSH BUTTON_4 AXIS KNOB_#6700/#6700P_

6B01P

7742302550P0A

LENS_POWER_NMV_NMV_A20BAL_PISA 20_TRANS

6L01A

7742611931P0A

COVER_TERMINAL BOTTOM COVER_#ABS

6L01C

7746204170P0A

SHIELD_USB SHIELD COVER_NEC_C20MTL_2(03

6L01F

7110330062P0A

SCREW-MACHINE-FLAT HEAD-M3-6-NI

6L01G

7110330062P0A

SCREW-MACHINE-FLAT HEAD-M3-6-NI

6L01H

7116240081P0A

SCREW-MACHINE-Star Washer-Pan-M4-8-Zn

6L01I

7740201240P0A

SCREW_MACHINE_FLAT WASER_PAN_M3_6L_Z

6L01J

7740201240P0A

SCREW_MACHINE_FLAT WASER_PAN_M3_6L_Z

6L01K

7746503720P0A

INSULATOR_NEC_C20MTL_2(03)~U10(C)_PPE_I

6L01L

7110340102P0A

SCREW_MACHINE_NONE_FLAT HEAD_M4_10_N

6L01M

7140226122P0A

SCREW_DOUBLE THREAD_WITHOUT WASHER_PAN

6L01O

7740200890P

SCREW_Cu-Ni

06B01

7737609551P0A

RC ASSY_KAMA 20 WS_#ABS UL-94V0_

6BA1

7742233051P0A

RC_NMV_KAMA 20 WS_#ABS 94V0_

6BB1

7742611921P0A

RAIL_CENTER CABINET_#ABS 94V0_

6BC1

7140130061P0A

SCREW_MACHINE_WITHOUT_NINDING_M3_6L_BLA

6BD1

7748711550P0A

BRACKET_SPEAKER BRACKETL_NEC_C20MTL_2(0

6BE1

7748711560P0A

BRACKET_SPEAKER BRACKETR_NEC_C20MTL_2)0

6BF1

7140330082P0A

SCREW-MACHINE-NONE-FLAT HEAD-M3-8-NI

8C01

773771045

P0A

BASE ASSY_#ABS 94V0_NMV_U20BNL

8CA1

7738000861P0A

HINGE_HINGE TILT ASSY_NMV_20_SECC_

8CB1

7742612111P0A

COVER_HINGE COVER(NEC)_#ABS 94V0

Summary of Contents for MultiSync 20WGX2 Series

Page 1: ...ith RoHS Directive use components in which the use of specific chemically noxious substances is restricted use only designated spare parts when it is necessary to replace such parts with new parts Use lead free solder for the equipment compatible with ones with substrates on which lead free components are mounted For the details refer to Caution for Lead Free Solder ing Work given in the next page...

Page 2: ... screwdriver that is well fit to the screw size 3 Caution for LEAD FREE soldering work For this equipment parts compatible with lead free materials are used Please observe the following precautions when performing any soldering work 1 Use lead free solder for substrates mounted with lead free parts If you use eutectic solder by mistake solder will not fuse well because of the difference in fusion ...

Page 3: ... Color control Sharpness Expansion mode Off timer LED Brightness Hot key Factory preset Language OSM Left Right OSM Down Up OSM turn off OSM Lock out Resolution notifier Monitor inf Functions Remote Control VESA DDC CI Safety UL cUL TuV GS CE CB Report PSB EMC FCC Class B Canadian DOC Class B C tick Class B CE VLF ELF MPR II MPRIII TCO 03 Power Management VESA DPMS EPA Energy star Ver 4 0 Tier2 GE...

Page 4: ... NUMBER INFORMATION 2 1 DISASSEMBLY 3 1 ADJUSTMENT PROCEDURES 4 1 INSPECTION 5 1 TROUBLE SHOOTING 6 1 CIRCUIT DESCRIPTION 7 1 REPLACEMENT PARTS LIST 8 1 BLOCK DIAGRAM 9 1 SCHEMATIC DIAGRAMS 10 1 PACKING SPECIFICATION 11 1 REVISION HISTORY 12 1 ...

Page 5: ...MultiSync 20WGX2 User s Manual ...

Page 6: ...iance Statement English 2 Declaration of Conformity English 2 Contents English 3 Quick Start English 4 Controls English 8 Recommended use English 11 Specifications English 13 Features English 14 Troubleshooting English 15 TCO 03 English 16 Manufacturer s Recycling and Energy Information English 17 ...

Page 7: ...R SHOCK HAZARDS DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE ALSO DO NOT USE THIS UNIT S POLARIZED PLUG WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLETS UNLESS THE PRONGS CAN BE FULLY INSERTED REFRAIN FROM OPENING THE CABINET AS THERE ARE HIGH VOLTAGE COMPONENTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Declaration Declaration of the Manufacturer We hereby certify that the colour moni...

Page 8: ...cular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet ...

Page 9: ...ni D SUB male Video Signal Cable DVI D to DVI D USB Cable User s Manual Cable Cover CD ROM includes complete User s Manual in PDF format To see the User s Manual Acrobat Reader 4 0 must be installed on your PC Remember to save your original box and packing material to transport or ship the monitor Power Cord User s Manual 15 pin mini D SUB male to 15 pin mini D SUB male CD ROM Cable Cover USB Cabl...

Page 10: ...gure A 2 Tighten all screws For the MAC Connect the Macintosh cable adapter to the computer then attach the 15 pin mini D SUB signal cable to the Macintosh cable adapter Figure B 1 Tighten all screws NOTE Some Macintosh systems do not require a Macintosh cable adapter 3 Remove the connector cover Figure C 1 4 Place hands on each side of the monitor to tilt the LCD panel 30 degrees angles Figure C ...

Page 11: ...he monitor must be turned on Figure D 1 Turn on the monitor with the front power button and the computer NOTE The vacation switch is a true on off switch If this switch is on the OFF position the monitor cannot be turned on using the front button DO NOT switch on off repeatedly 12 No Touch Auto Adjust automatically adjusts the monitor to optimal settings upon initial setup for most timings For fur...

Page 12: ...ector cover Figure M 2 2 Disconnect all cables 3 Place monitor face down on a non abrasive surface Figure M 3 4 Remove the 2 screws connecting the stand to the monitor Figure M 3 Tilt and Swivel Grasp both sides of the monitor screen with your hands and adjust the tilt and swivel as desired Figure TS 1 NOTE Handle with care when tilting and swivelling the monitor screen Figure TS 1 Figure M 2 MENU...

Page 13: ...Arm Installation This LCD monitor is designed for use with a flexible arm To mount the monitor to a flexible arm 1 Follow the instructions on how Remove Monitor Stand for Mounting to remove the stand 2 Use the 4 screws to attach the arm to the monitor Figure F 1 NOTE The LCD monitor should only be used with an approved arm e g GS mark To meet the safety requirements the monitor must be mounted to ...

Page 14: ...ANCED DV MODE Activates the Advanced Dynamic Video Mode DV MODE Dynamic Visual Mode allows you to select setting for Movie Photo and etc Auto Adjust Analog input only Automatically adjusts the Image Position H Size and Fine settings Menu Open OSM main menu Exits the OSM controls Exits to the OSM main menu Button MENU EXIT Left Right Down Up SELECT 1 2RESET RESET DV MODE Moves the highlighted area ...

Page 15: ...l automatically power down when the end user has selected a predetermined amount of time LED BRIGHTNESS You can adjust the Blue LED brightness HOT KEY You can adjust the brightness and contrast directly When this function is set to ON you can adjust the brightness with left or right control and contrast with up or down control while the OSM menu is off FACTORY PRESET Selecting Factory Preset allow...

Page 16: ...ntal or Vertical Sync After power is turned on or when there is a change of input signal the No Signal window will appear RESOLUTION NOTIFIER This function gives a warning of use with optimized resolution After power is turned on or when there is a change of input signal or the video signal doesn t have proper resolution the Resolution Notifier window will open This function can be disabled in the...

Page 17: ...ects have fallen into the monitor If the monitor has been exposed to rain or water If the monitor has been dropped or the cabinet damaged If the monitor does not operate normally by following operating instructions If glass is broken handle with care If monitor or glass is broken do not come in contact with the liquid crystal and handle with care Allow adequate ventilation around the monitor so th...

Page 18: ...et Size and Position controls with standard signals Use the preset Colour Setting Use non interlaced signals with a vertical refresh rate between 60 75 Hz Do not use primary colour blue on a dark background as it is difficult to see and may produce eye fatigue to insufficient contrast Cleaning the LCD Panel Recommended cleaning of the LCD To remove dust and dirt from the surface of the LCD panel w...

Page 19: ... Hz to 75 Hz 1440 x 900 1 at 60 Hz Recommended resolution is 60 Hz for 1680 x 1050 at 60 Hz optimal display performance Active Display Area Horizontal 433 0 mm 17 0 inches Vertical 271 0 mm 10 7 inches USB Hub I P USB Specification Revision 2 0 Port Upstream 1 Downstream 4 Load Current Maximum 0 5A per port Power Supply AC 100 240V 50 60Hz Power Consumption 84 W typ without optional Sound Bar Curr...

Page 20: ...pliance with MPRII and TCO guidelines for lower emissions Plug and Play The Microsoft solution with the Windows 95 98 Me 2000 XP operating system facilitates setup and installation by allowing the monitor to send its capabilities such as screen size and resolutions supported directly to your computer automatically optimizing display performance IPM Intelligent Power Manager System Provides innovat...

Page 21: ... erase the image NOTE As with all personal display devices NEC DISPLAY SOLUTIONS recommend displaying moving images and using a moving screen saver at regular intervals whenever the screen is idle or turning off the monitor when not in use Image is unstable unfocused or swimming is apparent Signal cable should be completely attached to the computer Use the OSM Image Adjust controls to focus and ad...

Page 22: ... Energy saving mode after a certain time beneficial both for the user and the environment Electrical safety Emissions Electromagnetic fields Noise emissions Ecology The product must be prepared for recycling and the manufacturer must have a certified environmental management system such as EMAS or ISO 14 001 Restrictions on chlorinated and brominated flame retardants and polymers heavy metals such...

Page 23: ...tandard signal is sent to the monitor the Energy Saving mode is activated The monitor enters a single Energy Saving mode Mode Power consumption LED colour Normal Operation Approx 84W Blue Energy Saving Mode Less than 2W Amber Off Mode Less than 1W Unlit Manufacturer s Recycling and Energy Information Disposing of your old NEC product Within the European Union EU wide legislation as implemented in ...

Page 24: ...ufactured Month January to September 1 to 9 October X November Y December Z Classification code Discriminate by cabinet color Black 1 Running number Note This running number does not reset at each month Example Jan 00001 00002 00003 01234 Feb 01235 01236 01237 99999 00001 Mar 00002 00003 00004 Factory Code G Lite on Control Code For B ver Europe B MODEL 20WGX2 BK L SERIAL NO ...

Page 25: ...ersize screwdriver is used screws may be damaged Assembly is the opposite process of disassembly Step 1 1 Push up and take over the cover 2 Symbol For Europe Liteon Part Number Description Cabinet Color Model 1 7737710453P0A BASE ASSY_ 6700_PC ABS 94V0_NMV_U20BNL Black B 2 7742611981P0A COVER_CABLE MANAGEMENT_ 6700_P C ABS 94V0 Black B ...

Page 26: ...l ForEurope Liteon Part Number Description Cabinet Color Model 3 7110340102P0A SCREW_MACHINE_NON E_FLAT HEAD_M4_10_N Black B Symbol For Europe Liteon Part Number Description Cabinet Color Model 4 7742611931P0A COVER_TERMINAL BOTTOM COVER_ 6700_PC ABS Black B ...

Page 27: ...se 2 screws to remove the function key 6 Symbol For Europe Liteon Part Number Description Cabinet Color Model 6 7140226122P0A SCREW FOR CONTROL Black B Symbol For Europe Liteon Part Number Description Cabinet Color Model 5 7110340102P0A SCREW_MACHINE_NON E_FLAT HEAD_M4_10_N Black B ...

Page 28: ...l 7 6711130002P90 HARNESS_KEY WIRE _13P 11P_210mm_1571 30 Black B 8 5113800416P FUNCTION KEY A ssy Black B Symbol For Europe Liteon Part Number Description Cabinet Color Model 9 7737512857P0A FC ASSY_NMV_ 6690 6720_PC ABS UL 94V0 White B Take off the front cover 9 7 8 Unplug the keywire ...

Page 29: ...3 5 Step 8 Symbol For Europe Liteon Part Number Description Cabinet Color Model 10 7737609551P0A RC ASSY_KAMA 20 WS_ 6700_PC ABS UL 94V0 Black B 10 Take off the rear cover ...

Page 30: ...3 6 Step 9 11 11 Symbol For Europe Liteon Part Number Description Cabinet Color Model 11 7110330062P0A SCREW MACHINE FLAT HEAD M3 6 Black B ...

Page 31: ...110300001P00 HARNESS_LVDS_30P 30 P_220mm_1589 30 Black B 13 6711140240P00 HARNESS_POWER_14P 9P_300mm_1007 24 Black B Step 11 14 Symbol For Europe NECDS Part Number Description Cabinet Color Model 14 3A684126 TFT LM201WE2 SLA1 LPL Black B 12 13 Unplug the LVDS harness and inverter harness ...

Page 32: ...del 15 7110630042P0A SCREW M3_4 Black B 16 7746204170P0A USB SHIELD COVER Black B Step 12 Step 13 17 18 Symbol For Europe Liteon Part Number Description Cabinet Color Model 17 7110330062P0A SCREW MACHINE FLAT HEAD M3 6 NI Black B 18 5113700055P U20BNL 03 _NECDS_ USB BD Black B ...

Page 33: ...rope Liteon Part Number Description Cabinet Color Model 19 7140330103P0A SCREW DOUBLE THREAD FLAT M3 10L Black B 20 Symbol For Europe Liteon Part Number Description Cabinet Color Model 20 7740200890P NON STANDARD SCREW SCREW CU N Black B ...

Page 34: ...3 10 Step 16 Step 17 21 Symbol For Europe Liteon Part Number Description Cabinet Color Model 21 7140330082P0A SCREW MACHINE NON E FLAT HEAD M3 8 NI Black B Unplug the signal harness ...

Page 35: ... Liteon Part Number Description Cabinet Color Model 22 7740201240P0A SCREW_MACHINE_FLAT WASER_PAN_M3_6L_Z Black B Symbol For Europe Liteon Part Number Description Cabinet Color Model 23 7116240081P0A SCREW MACHINE STAR WASHER PAN M4 8 Zn Black B ...

Page 36: ...t Color Model 24 7740201240P0A SCREW_MACHINE_FLAT WASER_PAN_M3_6L_Z Black B 25 26 Unplug the switch harness Symbol For Europe Liteon Part Number Description Cabinet Color Model 25 5114300385P U20BNL 03 _NECDS_ POWER BD Black B 26 5113301255P U20BNL 03 _NECDS_ INTERFACE BD Black B ...

Page 37: ...s base However be careful for if you pull it up too hard the leaf spring would be detached Spring for EMI Reef Spring Step 22 28 27 Symbol For Europe Liteon Part Number Description Cabinet Color Model 27 7746204162P0B SHIELD_SHIELD COVER_AL ALLOY1100 T 1 0 Black B 28 6711030003P91 HARNESS_3P SWITCH BLK_150mm_1007 22_E T Black B ...

Page 38: ...ctory Adjust 4 4 3 3 Hot Key for Burn in Mode 4 5 3 4 How to use Factory Mode 4 5 4 Adjustment 4 9 4 1 Measuring Instruments Jigs and Tools 4 9 4 2 Power supply Voltage 4 9 4 3 Power Circuit Closure 4 9 4 4 ADC Bias and Gain Adjust 4 9 4 5 Panel Brightness Check 4 10 4 6 Panel Color Check 4 10 4 7 Color Temperature Check 4 10 5 Reference Signal Timing 4 11 ...

Page 39: ...alue to the optimal value H Size H size optimal value for the signals which is stated in the VESA standard or close value to the optimal value FINE 0 Selection of Accucolor Preset N Native N Native OSM Left Right Center of horizontal position OSM Down Up Center of vertical position OSM Turn off time 45 sec OSM Lock out Not locked Resolution Notifier ON Sharpness 16 6 Expansion Mode Full Off Timer ...

Page 40: ...set Input signal select RESET DV MODE When OSM open reset the selected item Open Reset Warning before reset Hot key for DV MODE 1 Hot Key Destination Default Setting Europe On 2 Language Destination Default Setting Europe English 3 Information Model Destination Indicate Model Name 20WGX 2 EU 20WGX 2 URL Indicate below URL Destination Default Setting For NEC model NECDISPLAYSOLUTIONS COM 4 OSD OSM ...

Page 41: ... Mode a Press MENU EXITt button then open OSM menu b OSM select to INFORMATION menu by RIGHT or LEFT button c Press RESET SELECT button then into Factory mode No OSD MENU EXIT RIGHT or LEFT RESET SELECT 1680x1050 1680x1050 ...

Page 42: ...Do not include complete off mode The default is Reset able timers so reset able timers shall be shown when open the tag which includes Hours Running function Indication of Reset able and Un reset able can be changed by key input RESET LEFT Display Reset able timers RESET RIGHT Display Un reset able timers When RESET LEFT SELECT key is pressed during displaying Reset able or Un reset able timers re...

Page 43: ... each color can be carried out No adjustment need Page 3 AUTO ADJUST COUNT The total times of execution of automatic adjustment H Position V Position H Size and Fine AUTO COLOR COUNT The total times of execution of automatic adjustment Auto Contrast F W VER Firmware version F W ID Frimware ID FACTORY PRESET Reset all items of Factory preset in user mode Clear Reset able Hours Running Clear Auto Ad...

Page 44: ...SOG SAMPLE 0 1 2 3 0 1 4 H line average period 1 3 8 H line average period 2 1 2 H line average period 3 5 8 H line average period No adjustment needed COMP SAMPLE 0 1 2 3 0 1 4 H line average period 1 3 8 H line average period 2 1 2 H line average period 3 5 8 H line average period No adjustment needed DITHER TYPE 0 1 2 3 0 Dither Ordered dither 1 Dither Random dither 2 Dither No dither 6 bit FRC...

Page 45: ...4 8 Page 6 Each Color Temperature Data Adjustment needed Page 5 LCD panel type ...

Page 46: ...ower Circuit Closure 1 Connect the suitable cable of the signal generator according to the setting mode 2 Turn on the Power switch of the signal generator 3 Connect the AC power cable to the unit being adjusted 4 Turn on the Power switch of the unit being adjusted 5 After the completion of signal discrimination the LED is turned blue 4 4 ADC Bias and Gain Adjust 1 Enter an input signal of VESA 102...

Page 47: ...Preset function of tool menu 3 OSM BRIGHTNESS setting to Max 100 and CONTRAST setting to 50 4 Color temperature setting to NATIVE 5 Check the center color coordination x 313 0 03 y 329 0 03 4 7 Color Temperature Check 1 Enter an input signal of 1680x1050 60Hz in Full white pattern 2 OSM BRIGHTNESS setting to Max 100 and CONTRAST setting to 50 3 Color temperature setting to each color 4 Each color ...

Page 48: ...e Thp 2 09us 136CLK 1 203us 176CLK Horizontal back porch Thb 2 46us 160CLK 0 711us 104CLK Horizontal front porch Thf 0 37us 24CLK 1 915us 280CLK Horizontal sync polarity NEG POS NEG POS Vertical Frequency fv 60 000Hz 59 954Hz Frame time total Tv 16 67ms 806H 16 679ms 1089H Vertical active display Tvd 15 88ms 768H 16 082ms 1050H Vertical sync pulse Tvp 0 12ms 6H 0 092ms 6H Vertical back porch Tvb 0...

Page 49: ...se 5 10 3 Connector Pin Assignment 5 11 3 1 Analog Video Input Mini D sub 15 pin 5 11 3 2 Digital Inter Face Signals 5 12 4 Support Video Modes 5 13 5 DDC Function 5 15 5 1 Plug Play 5 15 5 2 Remote Control 5 15 6 Other Function 5 15 6 1 Full Scan Capacity 5 15 6 2 85Hz Refresh Rate Support 5 16 6 3 50Hz Refresh Rate Support 5 16 7 External Inspection on the LCD Module 5 17 7 1 Inspection Conditio...

Page 50: ...8 5CTI Value of PCB 5 21 8 6Others 5 21 9 Inspection of PLUG PLAY Communication and OSM MONITOR INFORMATION for Model Name Serial Number Inspection 5 22 9 1 System Connection 5 22 9 2 Input Signal 5 23 9 3 Program 5 23 9 4 Operation 5 24 9 5 EDIDData File 5 29 9 6 EDID Write Protect Cancel Signal Timing 5 29 Appendix Reference Signal Timings 5 30 ...

Page 51: ...H Position V position H size Fine Color control Sharpness Expansion mode Off timer LED Brightness Hot key Factory preset Language OSM Left Right OSM Down Up OSM turn off OSM Lock out Resolution notifier Monitor inf Functions Remote Control VESA DDC CI Safety UL cUL TuV GS CE CB Report PSB EMC FCC Class B Canadian DOC Class B C tick Class B CE VLF ELF MPR II MPRIII TCO 03 Power Management VESA DPMS...

Page 52: ...tive Sync on green 0 3Vp p Negative Spec min typical max Video Analog Video 0 55V 0 70V 0 90V Impedance 75 ohm Sync threshold VIH 0 2 0V 5 0V Separate Sync VIL 1 0V 0 8V VIH 0 2 0V 0 5V Composite Sync VIL 1 0V 0 7V Impedance 2 2k ohm Positive Negative Composite Sync on Green Video 0 15Vpp 0 3Vpp Impedance 2 2k ohm Positive Negative Sync Setup 0V H Sync 24 7kHz 81 2kHz Frequency Range V Sync 49Hz 7...

Page 53: ...k Level Setup Blank Level Sync Sync Level Sync On Green Wave Form Hsync Type 1P Vsync Type 1P Composite Sync Type1P Composite Sync Type2P Composite Sync Type20P Composite Sync Type21P Composite Sync Type22P Composite Sync Type 3P Spec Minimum Typical Maximum Dot clock 25 2MHz 165MHz H sync 31 5kHz 81 2kHz Frequency Range V sync 49Hz 76Hz H sync Sync Pulse V sync H sync Back Porch V sync ...

Page 54: ...r 50W kk Inlet connector type 3 polarity 10A 250V 65degC VDE UL CSA approved CEE input connector EN60320 Class I standard compliant Pin Name Definition 1 L Live 2 N Neutral 3 FG GND Ground 3 1 2 Input Voltage AC100 240V 10 Input Current 1 1 0 A AC100V 0 52 A AC240V Frequency 50 60 Hz 3Hz Power Consumption 84 W Max with USB no load condition 1 AC Leakage current 3 5mA AC120V 240V 0 2mA at AC100V wi...

Page 55: ...005 Request 2 0W Not connect USB Energy Star Ver4 0 Tier 2 3sec Orange DC power off OFF 1 0W Connect only USB Upstream cable GEEA2005 Request 1 0W Not connect USB Energy Star Ver4 0 Tier 2 Request 3sec None AC power Vacation SW off 1W None Signals Power State DE Horizontal Vertical Video USB Power Consumption Recovery Times LED status On Pulses ON ON Active ON Refer to 3 2 Blue DPMS No Pulses N A ...

Page 56: ...This function should be active at the following condition It is not active at the following condition for power saving 2 4 Others 2 4 1 Scaler NEC DS prefers Genesis OAK chipset 2 4 2 Audio System None HDCP Lead Free Faroudja Output Resolution Gm5861 X O X WSXGA Condition USB Circuit On Mode Active PMS mode Windows XP Select Screen of Property Select Screen saver Select Monitor saving function Set...

Page 57: ...r should be Native which is maximum setting for panel Target of color setting TCO 03 A 2 6 1 Color temperature variation should follow sRGB should follow Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM s http www microsoft com hwdev tech color ColorTest asp Color Coordinate Color Coordinate Color Temp x y Tolerance u v Tolerance 9300K 0 283 0 297 0 015 0 189 0 446 u v ...

Page 58: ...nce A2 4 2 Luminance Contrast angular dependence A2 4 3 Luminance contrast characters A2 6 1 Color Temp Variation A2 6 2 Color uniformity A2 6 3 RGB Setting A2 6 4 Color uniformity angular dependence A2 6 5 Color gray scale linearity Should be adjusted by monitor 2 8 Criteria for Noise Any noise shall not be audible in dead room Noise Sound from inverter power unit or other electrical components C...

Page 59: ...nt for analog video input connector Pin No Signal 1 Red Video 2 Green Video Sync on Green 3 Blue Video 4 GND 5 DDC GND 6 Red Video GND 7 Green Video GND 8 Blue Video GND 9 5VDC from PC 10 Sync GND 11 GND 12 DDC Data SDA 13 Horizontal sync Composite Sync 14 Vertical Sync 15 DDC Clock SCL ...

Page 60: ... 10 TX1 18 TX0 3 Shield TX2 TX4 11 Shield TX1 TX3 19 Shield TX0 TX5 4 NC 12 NC 20 NC 5 NC 13 NC 21 NC 6 DCC Serial Clock 14 5V power 22 Shield TXC 7 DCC Serial Data 15 Ground 5V 23 TXC 8 No Connect 16 Hot plug detect 24 TXC In case the power of the PC unit is switched off and the power of the monitor is switched on no voltage at pin 14 ...

Page 61: ... 9Hz 1 640 480 66 68 0 fV 73 9Hz 9 640 480 72 74 0 fV 77 9Hz 10 640 480 75 481 V Total 550 78 0Hz fV 11 640 480 85 Out of range fV 67 9Hz 35 720 576 60 551 V Total 611 68 0Hz fV 36 720 576 75 fH 33 0KHz 51 800 600 50 fV 54 9Hz 33 1 fH 38 0KHz 46 1280 720 50 55 0 fV 57 9Hz 12 800 600 56 58 0 fV 62 9Hz 13 800 600 60 63 0 fV 73 9Hz 14 800 600 72 48 0 fH 5 09KHz 2 832 624 75 74 0 fV 77 9Hz Other 15 80...

Page 62: ...0 960 85 Out of range fV 54 9Hz 48 1280 1024 50 55 0 fV 62 9Hz 24 1280 1024 60 63 0 fV 72 9Hz 25 1280 1024 66 fH 80 6KHz 26 1280 1024 75 73 0Hz fV 77 9Hz 80 7 fH 85 0KHz 27 1280 1024 76 1025 V Total 1076 78 0Hz fV 38 1280 1024 85 Out of range 1077 V Total 1083 fV 62 9Hz 60 1680 1050 60 Reduced Blanking fV 62 9Hz 61 1680 1050 60 63 0 fV 77 9Hz 58 1400 1050 75 Out of range 1084 V Total 1200 78 0 fV ...

Page 63: ... Full Screen mode Multi pixel mode Input display Expanded Rate Expanded Resolution Horizontal Vertical Resolution Expansion 720 350 2 33 3 1680 1050 Expansion 640 350 2 62 3 1680 1050 Expansion 640 400 2 62 2 62 1680 1050 Expansion 720 400 2 33 2 62 1680 1050 Expansion 640 480 2 62 2 18 1680 1050 Expansion 800 600 2 1 1 75 1680 1050 Expansion 832 624 2 02 1 68 1680 1050 Expansion 1024 768 1 64 1 3...

Page 64: ...play Out of Range warning menu at this mode 6 3 50Hz Refresh Rate Support In 50Hz refresh rate signal Following signals the display should be smooth at Moving character It should be taken care of the influence by Frame buffer mode 1 PAL signal 1 2 PAL signal 2 3 GTF 1024x768 50Hz 4 GTF1280x720 50Hz 5 GTF1280x960 50Hz ...

Page 65: ...nt3 dots 0 Max Total amount of Bright dots 2 Max Brightdot density WithinΦ10 mm Small bright dot which can be seen on 64 gray pattern is to be counted asone small bright dot defect Max N 3 within 10mm 10mm Total Max N 8 Size of small bright dot 1 20 R G B 1 2 7 1 2 2 Dark Dot Dots sub pixels which appeared darkly in the screen when the LCM displayed with bright pattern R G or B1 dot 5 Max Adjacent...

Page 66: ...tances which can be wiped out like Finger Print Particles are not considered as a defect d Defects which is on the Black Matrix outside of Active Area are not considered as a defect Items Criteria Scratches Linear 0 1 W 0 2 0 3 W 2 0 N 3 Dent Circular D 0 5 N 3 Where W Width L Length D Average diameter a b 2 ...

Page 67: ...ical horizontal or cross are not allowed 7 5 Bezel Appearance Scratches minor bents stains particles on the Bezel frame are not considered as a defect 7 6 Others Issues which is not defined in this criteria shall be discussed with both parties Customer and Supplier for better solution Items Criteria Linear W 0 1 0 3 L 2 0 N 3 Foreign Material Circular 0 2 D 0 5 N 3 ...

Page 68: ...0M ohms while withstanding a voltage of 500Vdc 8 2 Dielectric Strength Test To confirm the freedom from insulation breakdown testing should be carried out under the conditions specified below 1 Measuring conditions Measuring instrument Dielectric strength tester The specified voltage should be maintained in the state that a current of 10mA is carried Testing point Between the electrical circuit bl...

Page 69: ... and OFF 2 Judgment standard The current conducted between each of the power supply s contacts is less than 3 5mA at 255Vac 60Hz and 0 2mA at 100Vac 60Hz 8 4 Ground Continuity The resistance between the ground side of the power cord and the accessible metal parts located in ground circuit shall not exceed 0 1 ohm at current load of 25mA 8 5 CTI Value of PCB CTI value of below PCB should be more th...

Page 70: ...mmunication and OSM MONITOR INFORMATION for Model Name Serial Number Inspection 9 1 System Connection This system should be connected as shown below Fig 9 1 1 D SUB connector connection Fig 9 1 2 DVI connector connection ...

Page 71: ...9910541 9 2 Input Signal Horizontal synchronization frequency 31kHz Negative Vertical synchronization frequency 42Hz Negative 9 3 Program Service tool Ver 3 40 Part No 599910802 Modify the connector end by removing the five 5 analog pins Modify the connector end by removing the five 5 analog pins ...

Page 72: ...onnect the EDID data writing unit 2 Create a unique directory in the PC and copy all the files of service tool Ver 3 40 into that directory 3 Start the service tool with file Service2 EXE 4 When the screen as shown below appears click the LCD button of Monitor Type and press the START button ...

Page 73: ...5 25 5 When the screen as shown below move the cursor to 20WGX2 D SUB and double click 6 When the screen as shown below appears select EDID_READ and press the OK button ...

Page 74: ...ID data writing should be carried out 8 Clicking the back button will display the screen in step 6 Select EDID_WRITE and press the OK button 9 When the screen as shown below appears examine the serial number of the unit enter an input in the column of Input Serial No through the keyboard and press the Input OK button Enter an input in the column of Year in manufactured year A D four digits and Mon...

Page 75: ...10 2 OSM select to INFORMATION menu by RIGHT or LEFT button 10 3 Press RESET SELECT button then into Factory mode 11 When the WRITE EDID button is pressed writing of the EDID data only is carried out Upon the completion of correct writing a display of EDID Monitor Write OK is presented in the column of STATUS ...

Page 76: ...DID Data Inspection and Writing to the DVI PC Connector 1 Connect the EDID data writing unit with jigs etc Refer to a DVI connector connection figure 2 The BACK button is pushed twice and the MODEL SELECT screen is displayed Cursor is united and double clicked to 20WGX2 DVI D 3 6 to 11 is carried out in the procedure of the 9 4 1 EDID data inspection and writing of a D SUB connector 4 Upon the nor...

Page 77: ... _D edi DIGITAL 0 1 2 3 4 5 6 7 8 9 A B C D E F 00 00 FF FF FF FF FF FF 00 38 A3 99 66 01 01 01 01 10 Note1 Note2 01 03 80 2B 1B 78 EA C5 05 A3 57 4A 9C 25 20 12 50 54 BF EF 80 71 4F 81 CF 81 4F 81 80 95 00 30 90 40 B3 00 01 01 21 39 90 30 62 1A 27 40 18 B0 40 36 40 B1 0E 11 00 00 1C 00 00 00 FD 00 38 4B 1F 50 53 11 00 0A 20 20 20 20 20 20 00 00 00 FC 00 32 60 30 57 47 58 32 0A 20 20 20 20 20 20 0...

Page 78: ...5 30 Appendix Reference Signal Timings H Horizontal H pluse H back H total H front H active V Video Vertical V pluse V back V total V front V active ...

Page 79: ...9H 0 78ms 39H Vertical front porch Tvf 0 09ms 3H 0 02ms 1H Vertical sync polarity NEG POS NEG POS MODE MODE No 3 4 Item Abbreviation PC98 640 400 24 8kHz VGA 720 350 70Hz Pixel frequency fc 21 053MHz 28 322MHz Horizontal frequency fh 24 83kHz 31 47kHz Line Time total Th 40 274us 848CLK 31 78us 900CLK Horizontal active display Thd 30 400us 640CLK 25 42us 720CLK Horizontal sync pulse Thp 3 04us 64CL...

Page 80: ...1ms 35H 1 02ms 33H Vertical front porch Tvf 0 38ms 12H 0 35ms 10H Vertical sync polarity POS NEG POS MODE MODE No 7 8 Item Abbreviation VGA 640 480 72Hz VESA 640 480 75Hz Pixel frequency fc 31 500MHz 31 500MHz Horizontal frequency fh 37 86kHz 37 50kHz Line Time total Th 26 41us 832CLK 26 67us 840CLK Horizontal active display Thd 20 32us 640CLK 20 32us 640CLK Horizontal sync pulse Thp 1 27us 40CLK ...

Page 81: ...ms 22H 0 61ms 23H Vertical front porch Tvf 0 03ms 1H 0 03ms 1H Vertical sync polarity POS NEG POS NEG MODE MODE No 11 12 Item Abbreviation VESA 800 600 72Hz VESA 800 600 75Hz Pixel frequency fc 50 000MHz 49 500MHz Horizontal frequency fh 48 08kHz 46 88kHz Line Time total Th 20 80us 1040CLK 21 33us 1056CLK Horizontal active display Thd 16 00us 800CLK 16 16us 800CLK Horizontal sync pulse Thp 2 40us ...

Page 82: ... 60ms 29H 0 51ms 29H Vertical front porch Tvf 0 06ms 3H 0 05ms 3H Vertical sync polarity NEG POS NEG POS MODE MODE No 15 16 Item Abbreviation VESA 1024 768 75Hz VESA 1152 864 75Hz Pixel frequency fc 78 75MHz 108 00MHz Horizontal frequency fh 60 02kHz 67 50kHz Line Time total Th 16 66us 1312CLK 14 82us 1600CLK Horizontal active display Thd 13 00us 1024CLK 10 67us 1152CLK Horizontal sync pulse Thp 1...

Page 83: ...31H 0 60ms 36H Vertical front porch Tvf 0 03ms 2H 0 017ms 1H Vertical sync polarity POS NEG POS NEG MODE MODE No 19 20 Item Abbreviation VESA 1280 1024 60Hz SUN 1280 1024 66Hz Pixel frequency fc 108 00MHz 117 00MHz Horizontal frequency fh 63 981kHz 71 69kHz Line Time total Th 15 63us 1688CLK 13 95us 1632CLK Horizontal active display Thd 11 85us 1280CLK 10 94us 1280CLK Horizontal sync pulse Thp 1 0...

Page 84: ...s 38H 0 39ms 32H Vertical front porch Tvf 0 01ms 1H 0 02ms 2H Vertical sync polarity POS NEG POS NEG MODE MODE No 23 24 Item Abbreviation MAC1152 870 75Hz SUN 1024x768 66Hz Pixel frequency fc 100 00MHz 70 490MHz Horizontal frequency fh 68 68kHz 52 448kHz Line Time total Th 14 56us 1456CLK 19 067us 1344CLK Horizontal active display Thd 11 52us 1152CLK 14 527us 1024CLK Horizontal sync pulse Thp 1 28...

Page 85: ...ms 36H Vertical front porch Tvf 0 016ms 1H 0 013ms 1H Vertical sync polarity POS NEG POS NEG i810 DVD resolution i810 DVD resolution No 27 28 Item Abbreviation i810 720x576 60Hz i810 720x576 75Hz Pixel frequency fc 32 98MHz 42 95MHz Horizontal frequency fh 36 160kHz 45 500kHz Line Time total Th 27 653us 912CLK 21 979us 944CLK Horizontal active display Thd 21 831us 720CLK 16 764us 720CLK Horizontal...

Page 86: ...0H 0 482ms 36H Vertical front porch Tvf 0 050ms 3H 0 013ms 1H Vertical sync polarity NEG POS NEG POS EDID write protect cancel SUN Workstation No 31 32 Item Abbreviation EDID SUN 1280x800 Pixel frequency fc 28 32MHz 101 40MHz Horizontal frequency fh 31 469kHz 64 68kHz Line Time total Th 31 777us 900CLK 15 464us 1588CLK Horizontal active display Thd 25 422us 720CLK 12 623us 1280CLK Horizontal sync ...

Page 87: ...s 19H 0 46ms 17H Vertical front porch Tvf 0 03ms 1H 0 03ms 1H Vertical sync polarity NEG POS NEG POS Non interlaced PAL Non interlaced PAL No 35 36 Item Abbreviation GTF1280x960 50Hz GTF1280x1024 50Hz Pixel frequency fc 82 99MHz 89 379MHz Horizontal frequency fh 49 40kHz 52 70kHz Line Time total Th 20 24us 1680CLK 18 975us 1696CLK Horizontal active display Thd 15 42us 1280CLK 14 321us 1280CLK Hori...

Page 88: ... 0 45ms 14H Vertical front porch Tvf 0 04ms 1H 0 03ms 1H Vertical sync polarity NEG POS NEG POS MODE MODE No 39 40 Item Abbreviation 1440x900 60Hz Reduced Blanking 1440x900 60Hz Pixel frequency fc 88 750MHz 106 500MHz Horizontal frequency fh 55 469KHz 55 935KHz Line Time total Th 18 028us 1600CLK 17 878us 1904CLK Horizontal active display Thd 16 225us 1440CLK 13 521us 1440CLK Horizontal sync pulse...

Page 89: ... 33H 0 355ms 23H Vertical front porch Tvf 0 042ms 3H 0 046ms 3H Vertical sync polarity POS NEG NEG POS Mode Mode No 43 44 Item Abbreviation 1400x1050 60Hz VESA 1680x1050 60Hz Reduced Blanking Pixel frequency fc 121 750MHz 119 00MHz Horizontal frequency fh 65 317KHz 64 674kHz Line Time total Th 15 310us 1864CLK 15 462us 1840 Horizontal active display Thd 11 499us 1400CLK 11 118us 1680 Horizontal sy...

Page 90: ...9ms 30H 0 419ms 20H Vertical front porch Tvf 0 046ms 3H 0 063ms 3H Vertical sync polarity POS NEG NEG POS Mode Mode No 47 48 Item Abbreviation 1360X768 60Hz 1360X768 60Hz CVT Pixel frequency fc 85 5MHz 84 750MHz Horizontal frequency fh 47 712kHz 47 720kHz Line Time total Th 20 959us 1792CLK 20 959us 1776CLK Horizontal active display Thd 15 906us 1360CLK 16 047us 1360CLK Horizontal sync pulse Thp 1...

Page 91: ...orizontal sync pulse Thp 1 718us 128CLK Horizontal back porch Thb 2 577us 192CLK Horizontal front porch Thf 0 859us 64CLK Horizontal sync polarity NEG POS Vertical Frequency fv 59 855Hz Frame time total Tv 16 707ms 748H Vertical active display Tvd 16 082ms 720H Vertical sync pulse Tvp 0 112ms 5H Vertical back porch Tvb 0 447ms 20H Vertical front porch Tvf 0 067ms 3H Vertical sync polarity POS NEG ...

Page 92: ... 6 1 Abnormal DDC2 D Sub 6 8 6 2 Abnormal DDC2 DVI 6 8 7 Checking the Interface Circuit of Sync Signal 6 8 7 1 Checking the Control Circuit of Horizontal Sync Pulse 6 9 7 2 Checking the Control Circuit of Vertical Sync Pulse 6 9 8 Checking the Resolution Change IC Movement 6 10 9 Checking the DC DC converter circuit 6 11 10 No Power On 6 12 11 Check the USB Hub Circuit 6 13 11 1 HUB is not Recongn...

Page 93: ...G Proceed 5 Abnormal OSM Display section OK NG Input the sync signal of computer or change the cable Check if the sync signal from Computer is output and if the video cable is connected normally Does OSM display when you push MENU button Proceed 4 Abnormal Screen section ...

Page 94: ...the host 2 Reconnect the video cable 3 Change the video cable OK NG OK NG Failure Point The Cable is disconnected Is backlight turned on Does computer output RGB video signals Check OSM menu is displayed on screen when you push the MENU key Next Page Proceed 4 Abnormal screen section Check if the LCD video signal cable is connected between the MAIN PCB and LCD module ...

Page 95: ... cable broke between P310 and LCD module 2 LCD module failure OK NG Failure point Printed wire broke or shorted between I311 I312 and P305 OK Check the 3 3 V power are supplied on I307 pin 2 the 1 8V power are supplied on I306 pin 2 Check if the voltage on I307 I306 pin 3 that is high level DC at 5V Check all LVDS signal pins output from I311 I312 Continue ...

Page 96: ...between I308 pin 202 and P303 2 I312 failure Check the BKLT_EN signal of the rectangle input P303 pin 13 at TTL high level Check the PWM signal of the input from I308 pin 202 is a PWM signal Failure point Inverter of LCD module failure Is a H level being output in the TTL level from I308 pin 59 Or is BKLT_EN signal of the rectangle being output OK ...

Page 97: ... D Sub R and I308 pin 128 129 OK OK NG Process 8 Checking the resolution change IC movement section Failure point 1 I308 I311 I312 failure 2 Printed wire broken between I308 and I311 I321 3 Printed wire broken between I311 I312 and P305 Check the R G B video signal from computer input on D Sub R G B connector Check the R G B input signals on I308 pin 139 142 144 respectively that their level is 0 ...

Page 98: ... Printed wire broke between P307 pin 8 11 and I308 pin 200 4 Printed wire broke between P307 pin 8 11 and I308 pin 201 5 Printed wire broke between P307 pin 8 11 and I308 pin 94 6 Printed wire broke between P307 pin 8 11 and I308 pin 95 7 Printed wire broke between P307 pin 8 11 and I308 pin 96 8 Printed wire broke between P307 pin 8 11 and I308 pin 97 Check the input TTL level whether was changed...

Page 99: ... I303 pin 5 has been shorted 6 Cable failure 7 Same as I303 pin 6 Confirm the output of serial data on I303 pin 5 synchronize SCLK at TTL level OK NG Failure point I334 failure Failure point 1 The host machine isn t communicating in DDC2 mode 2 The video cable may have failed or may not to have connections for DDC 3 Between I334 pin 5 and P304 pin 7 may have failed 4 R318 R506 open 5 I334 pin 5 ha...

Page 100: ...ire broke between P301 pin 13 and I308 pin 132 3 FB302 R307 open Process 8 Checking the resolution change IC movement section Check the horizontal sync signal on I308 pin 132 TTL level OK NG Failure point 1 Video cable may have failed 2 Printed wire broke between P301 pin 14 and I308 pin 133 3 FB302 R307 open Process 8 Checking the resolution change IC movement section Check the vertical sync sign...

Page 101: ... and I308 pin 165 Failure point SW301 failure NG OK Proceed 9 Checking the DC DC converter circuit section Failure point X301 failure Is there 3 3V supply on I307 3V3 power pins Is there 3 3V supply on I306 1V8 power pins Is 14 318MHz clock input to I308 pin 162 and pin 163 at TTL level during Power On Is 14 318MHz clock output from X301 pin 1 at TTL level during Power On Is 5 0V supplied to I308 ...

Page 102: ...3 pin 3 4 5 and I307 I306 pin 3 OK NG Failure point I307 I306 failure Failure point Printed wire broke between I307 I306 pin 2 and I308 power supply pin Check if the 5V is output from P303 pin 3 4 5 to I307 I306 pin 3 Check the output of 3 3V 1 8V line voltage from I307 I306 pin 2 ...

Page 103: ... other component and repair them OK NG Repair them Check peak voltage of R840 triangle pulse is up to 0 85 volt or not Check output voltage 5V is right or not Check power cord P801 signal cable P802 P803 are connected right or not Check C801 is about DC140V 330V or not Check C853 is over 16V or not Check pin 8 of I808 have same pulse or not Check pin 1 of T806 have same pulse or not Check peak vol...

Page 104: ...NG Failure point R434 R433 C499 D331 OK OK Printed wire breaks between X302 and I308 NG Proceed 12 4 Check the USB IC section Is a cable with the host PC connected Is a USB cable connected with the monitor Is a 3 3V supplied to I319 Vcc Pin 3 7 11 15 19 23 27 33 39 45 55 Doesn t I306 open Is a Reset Signal Input to I319 pin 46 Doesn t clock input to I319 pin 21 Failure point X302 ...

Page 105: ...itch failure OK NG Failure point L302 L303 failure OK NG Failure point Faulty operation of the over current protection function Proceed 12 4 Check the USB IC section NG Failure point I309 Is it aware of the USB hub in the host PC Is apparatus connected to the down stream port Is 5V 5 supplied to P305 pin1 Does 5V output from I309 pin 5 and pin 8 Does I309 during protection mode OK Does L302 L303 o...

Page 106: ... peripheral is connect with rise_time and fall_time between 500psec to 300nsec Proceed 12 4 Check the USB IC section NG OK Is it aware of the USB hub in the host PC Is a host PC aware of the peripheral which doesn t work Is the program which is characteristic of the machine unnecessary to make it work Is there a precaution of it doesn t sometimes move via the hub in the manual of the peripheral wh...

Page 107: ... Failure point Faulty operation of the over current protection function Failure point I318 I320 failure Is 3 3V supplied to I319 Vcc pin 3 7 11 15 19 23 27 33 39 45 55 Does X302 oscillate 24 MHz Does the output of X302 satisfy a threshold level High more than 2 2V Low less than 0 8V Does it have the output of the High Level more than 4 75V from I318 I320 Pin 5 and 8 Does I318 I320 short OK ...

Page 108: ...S Page 1 Interface Board and Panel Power Supply 7 2 2 Video Input Circuit 7 2 3 System reset LED Control Circuit 7 2 4 E2 PROM for EDID 7 2 5 E2 PROM 7 2 6 MCU Circuit 7 3 7 Power Supply Circuit daigrams MAIN PWB 7 6 8 USB 2 0 Hub Circuit 7 8 ...

Page 109: ...nd P311 the AC coupled video signal is used to clamp the black level at 0V The digital TMDS input enters from P302 3 System Reset LED Control Circuit 3 1 System Reset System reset is performed by detecting the rising and falling of the 5V source voltage at I308 3 2 LED Control Circuit Blue amber control signal of the LED BLUE and LED AMBER signal pin 204 203 from I308 4 E2 PROM for EDID The EDID o...

Page 110: ...ical frequencies the total number of lines is determined with a formula where Horizontal frequency Vertical frequency Total number of lines Initial identification can be made by examining the coincidence of the obtained figure with the number of lines for the mode identified from the frequency When the detected frequency if the sync signal has changed the total number of lines should be counted ev...

Page 111: ...36 000 4 800 x 600 60 320 37 880 40 000 5 1024 x 768 60 000 48 360 65 000 6 1280 x 960 60 000 60 000 108 000 7 1280 x 1024 60 020 63 981 108 000 8 1600 x 1200 60 000 75 000 162 000 9 720 x 576 60 570 36 160 32 980 10 1440 x 900 59 901 55 469 88 750 11 1440 x 900 59 887 55 935 106 500 12 1400 x 1050 59 948 64 744 101 000 13 1400 x 1050 59 978 65 317 121 750 14 1680 x 1050 59 880 64 670 119 000 15 1...

Page 112: ...7 5 6 3 User Control 6 3 1Control Keys Key Action MENU EXIT Enter or Exit item SELECT Select or Set RESET DV MODE Reset POWER Power on off ...

Page 113: ...Q801 drive T801 from PWM control of I801 for power converted respectively 7 6 FB Negative feedback CKT consist of photo coupler I807 and adjustable regulator I806 It can maintain output voltages 5V at a stable level 7 7 PWM 7 7 1 Start 5V When power is turned on Q802 conducts due to bias from C801 and R868 I808 starts to oscillate and outputs a pulse train through pin 8 to drive Q802 7 7 2 OPP 5V ...

Page 114: ...ine Filter Rec Filter 5V 12V Power Transformer 5V Output Rec Filter PWM Driver FB 13V Output Rec Filter 12V 5V for Main Board 24V Power Transformer 24V Output Rec Filter 24V for Inverter 12V Regulator for Audio for Panel PFC Circuit ...

Page 115: ... USB Hub Controller 8 5 USB hub control circuit I319 is a USB hub control IC made by Cypress I319 enables communication with upstream port when D and D from the USB connector are applied to pin 18 and pin 17 respectively Pin 14 13 10 9 6 5 2 and 1 are connected to the USB connector of the downstream port They function as a communication interface between downstream and up stream ports If an overcu...

Page 116: ...8 1 REPLACEMENT PARTS LIST TABLE OF CONTENTS Page Model 20WGX2 B For Europe 8 2 ...

Page 117: ...P30 CAP CD_pF_4700_1000V_K_T_X7R_SEC C832 6338547215P30 CAP CD_pF_4700_1000V_K_T_X7R_SEC C804 6336510305P CAP CD_uF_0 01_1000V_M_T_Z5U C854 6336510305P CAP CD_uF_0 01_1000V_M_T_Z5U C308 6371110056P03 CAP MC_pF_10_50V_J_NPO C813 6371110252P00 CAP MC_pF_1000_50V_J_NPO_0805_COMPOSTA C817 6371110252P00 CAP MC_pF_1000_50V_J_NPO_0805_COMPOSTA C852 6371110252P00 CAP MC_pF_1000_50V_J_NPO_0805_COMPOSTA C86...

Page 118: ...MC_uF_0 1_50V_K_X7R_SMD 0603 PB C329 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C331 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C333 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C334 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C335 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C336 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C337 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 ...

Page 119: ...50V_K_X7R_SMD 0603 PB C419 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C420 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C421 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C422 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C427 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C428 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C429 6371210416P CAP MC_uF_0 1_50V_K_X7R_SMD 0603 PB C430 63...

Page 120: ...A C831 6371247413P00 CAP MC_uF_0 47_50V_K_X7R_1206_COMPOSTA C881 6371247413P00 CAP MC_uF_0 47_50V_K_X7R_1206_COMPOSTA C522 6374210512P CAP MC_uF_1_16V_K_X7R_SMD 0805 C818 6374210512P CAP MC_uF_1_16V_K_X7R_SMD 0805 C301 6374410502P CAP MC_uF_1_16V_M_Y5V_SMD 0805 C343 6374410502P CAP MC_uF_1_16V_M_Y5V_SMD 0805 C489 6374410502P CAP MC_uF_1_16V_M_Y5V_SMD 0805 C511 6374410502P CAP MC_uF_1_16V_M_Y5V_SMD...

Page 121: ...304 6111000028P COIL CHOKE_COMMON SMD _OHM_160_25 L305 6111000028P COIL CHOKE_COMMON SMD _OHM_160_25 L801 6111285131P COIL CHOKE_PFC_uH_282 5_ _13 _T80_52_LSE L803 6111549130P COIL CHOKE_uH_5 4_K L810 6115479104P00 COIL PEAKING_uH_4 7_K_T26_STAR AL0307TB T802 6138000002P00 LINE FILTER_mH_12_ET24_LSE FLI5005EL T803 6138003601P LINE FILTER_mH_14_FR16 12 8_LSE TUBE FB301 6881101898P CORE_BEAD_BK 2125...

Page 122: ...P_2 0mm_A2006WR0_2x5P_JWT P601 6610110030P PLUG_11P_1 0mm_JS_1254_11_CHYAD SHIUNN P307 6613130020P PLUG_13P_2 0mm_JWT_A2001WV2_13 P303 6611130040P PLUG_13P_2 5mm_A2501WR2_JWT P803 6611130040P PLUG_13P_2 5mm_A2501WR2_JWT P305 6613300010P PLUG_30P_2 0mm_A2006WV0_2x15P_JWT P304 6613040030P PLUG_4P_2 0mm_A2001WV2_4 I325B 6626440020P SOCKET_IC_8111_44TAB2_44P_PLCC P805 6614030001P00 WAFER_3P_3 96mm_A39...

Page 123: ...03 6414056108P DIODE_ZENER_MMSZ5232B_7_5 6V_SOD123_DII D304 6414056108P DIODE_ZENER_MMSZ5232B_7_5 6V_SOD123_DII D306 6414056108P DIODE_ZENER_MMSZ5232B_7_5 6V_SOD123_DII D309 6414056108P DIODE_ZENER_MMSZ5232B_7_5 6V_SOD123_DII D310 6414056108P DIODE_ZENER_MMSZ5232B_7_5 6V_SOD123_DII D312 6414056108P DIODE_ZENER_MMSZ5232B_7_5 6V_SOD123_DII D314 6414056108P DIODE_ZENER_MMSZ5232B_7_5 6V_SOD123_DII ZD8...

Page 124: ..._S2AE_8P_SOIC_S I303 6448018208P IC_CPU_24LC02BT SN_8PIN_SOIC_MICROCHIP I334 6448018208P IC_CPU_24LC02BT SN_8PIN_SOIC_MICROCHIP I310 6448018308P IC_CPU_24LC32AT SNG_8PIN_SOIC_MICROCHIP I319 6448022018P IC_CPU_CY7C65640A_LFXC 56P QFN_TAPPING I325 6448018900P50 IC_CPU_SM89516C25J_44P_PLCC_SYNCMOS I332 6442000068P24 IC_LINEAR OP _LMV358MX_8P_SOIC_NS I317 6442043008P IC_LINEAR_AIC1117A_33PYTR_3PIN_SOT...

Page 125: ...1 10W_J_603 R419 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R425 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R458 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R464 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R465 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R466 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R467 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R468 6252100256P RES CHIP_R_KOHM_10_1 10W_J_603 R471...

Page 126: ...6P RES CHIP_R_KOHM_3 3_1 10W_J_603 R455 6252330156P RES CHIP_R_KOHM_3 3_1 10W_J_603 R456 6252330156P RES CHIP_R_KOHM_3 3_1 10W_J_603 R460 6252330156P RES CHIP_R_KOHM_3 3_1 10W_J_603 R472 6252330156P RES CHIP_R_KOHM_3 3_1 10W_J_603 R493 6252330156P RES CHIP_R_KOHM_3 3_1 10W_J_603 R501 6252330156P RES CHIP_R_KOHM_3 3_1 10W_J_603 R409 6252300256P RES CHIP_R_KOHM_30_1 10W_J_603 R835 6253330242P RES CH...

Page 127: ...100056P RES CHIP_R_OHM_100_1 10W_J_603 R434 6252100056P RES CHIP_R_OHM_100_1 10W_J_603 R610 6252113046P RES CHIP_R_OHM_113_1 10W_F_0603 R611 6252113046P RES CHIP_R_OHM_113_1 10W_F_0603 R481 6252120046P RES CHIP_R_OHM_120_1 10W_F_SMD 0603 R482 6252120046P RES CHIP_R_OHM_120_1 10W_F_SMD 0603 R606 6252120046P RES CHIP_R_OHM_120_1 10W_F_SMD 0603 R603 6252187046P RES CHIP_R_OHM_187_1 10W_F_0603 R324 62...

Page 128: ...470_1 8W_J_0805 RN301 6260002818P RES FRN_OHM_0_1 16W_J RN302 6260002818P RES FRN_OHM_0_1 16W_J RN303 6260002818P RES FRN_OHM_0_1 16W_J RN304 6260002818P RES FRN_OHM_0_1 16W_J RN305 6260002818P RES FRN_OHM_0_1 16W_J RN306 6260002818P RES FRN_OHM_0_1 16W_J RN307 6260002818P RES FRN_OHM_0_1 16W_J RN308 6260002818P RES FRN_OHM_0_1 16W_J RN309 6260002818P RES FRN_OHM_0_1 16W_J RN310 6260002818P RES FR...

Page 129: ...DHESIVE_SCREW LOCKING_VA_450_PIN_YEAR Q802B 1250000415P ADHESIVE_SCREW LOCKING_VA_450_PIN_YEAR Q803B 1250000415P ADHESIVE_SCREW LOCKING_VA_450_PIN_YEAR X303 6449004820P CRYSTAL_11 0592MHZ_HC_49S 20pF_TOPICS X301 6449006400P CRYSTAL_14 318MHz_AT_49_TOPICS X302 6449002660P CRYSTAL_24MHZ_HC_49 S_TOPIC_16pF 30PPM GND2 6714010601P33 HARNESS_1P_100mm_1015 18_Y G_1 8 TIN P601A 6711110001P90 HARNESS_SIGNA...

Page 130: ...C 7740200690P0B RIVET_EYELET_1 6_FOR NE T801D 7740200690P0B RIVET_EYELET_1 6_FOR NE T802A 7740200690P0B RIVET_EYELET_1 6_FOR NE T802B 7740200690P0B RIVET_EYELET_1 6_FOR NE T802C 7740200690P0B RIVET_EYELET_1 6_FOR NE T802D 7740200690P0B RIVET_EYELET_1 6_FOR NE T803A 7740200690P0B RIVET_EYELET_1 6_FOR NE T803B 7740200690P0B RIVET_EYELET_1 6_FOR NE T803C 7740200690P0B RIVET_EYELET_1 6_FOR NE T803D 77...

Page 131: ...PW 1143_ER2834_LSE PLI5007 MECHANICAL ASSY 6B01R 7742611313P0A COVER_NMV_ 6700 6700P_PC ABS 94V0 6B01T 7742611303P0A COVER_NMV_ 6700 6700P_PC ABS 94V0 6B01M 7742611330P0A COVER_LENS COVER_NMV_NMV_A20BAL_PISA 20 6B01N 7742807581P0A PUSH BUTTON_ 6700 6700P_PC ABS 94V0_ 6B01Q 7742807293P0B PUSH BUTTON_4 AXIS KNOB_ 6700 6700P_ 6B01P 7742302550P0A LENS_POWER_NMV_NMV_A20BAL_PISA 20_TRANS 6L01A 774261193...

Page 132: ...ILICON_GRAY 6LF1 7746403070P0B HEAT SINK_AL 1100_ANODIZE TREATMENT_ 6LH1 7742003743P0A RUBBER CUSHION_THERMAL PAD_SILICON_GRAY 6LI1 7742003744P0A RUBBER CUSHION_THERMAL PAD_SILICON_GRAY 6LK1 7746403080P0A HEAT SINK_NEC C20MTL_AL ALLOY_CLEAN_ 6L01N 7140330103P0A SCREW_DOUBLE THREAD_FLAT_M3_10L_BLACK 6L01V 7110630042P0A SCREW_MACHINE_NONE_FLAT HEAD_M3_4_NI 6L01Y 7742612630P0A SUPPORT_PCB_PINGOOD_NYL...

Page 133: ...m_ALL MODE 1P71 7749502450P0A PALLET_FOUR WAY_1320 1145 115h_NM 2B01 7735430565P0A LABEL_MODEL LB_NEC_U20BN_BLK_154x51mm_ 2P09 7735419260P PACKING LABEL_ALL_ALL_WHITE_297 210 Y001 7730302952P0A MANUAL ASSY_NEC DS_U20BNL_20WGX2 L205GJ_ Y0A1 7730114002P0A MANUAL_NEC DS_U20BNL_20WGX2 L205GJ_EMEA Y0B1 7730203293P0A CARD_CD MANUAL_NEC DS_U20BNL_EMEA_ Y0C1 7730203214P0A CARD NAVISET FLYER NMV NAVISETFLY...

Page 134: ...I311 SDRAM 1M 16 I309 SPI Flash I310 NVRAM I325 CPU for 1W USB P309 Up Stream USB P310 Down Stream CY7c65640A LFC PTB 1621 Power Board I307 3 3VDC Regulator I306 1 8VDC Regulator 5VDC PSU ON OFF USB BD PTB 1605 Down Stream PTB 1680 PTB 1671 KEY PAD PANEL 20 LPL LM201WE2 SLA1 AI DCR I331 332 323 12VDC LVDS OUTPUT USB I319 I328 AO4407 5VDC Switch 5VDC 5V ON OFF 5VDC ...

Page 135: ...8 16 7 6 2 3 13 15 S1 A1 B1 S0 A3 A0 B0 B3 GND VCC GND OE A2 YA YB B2 D318 MMBD7000 3 1 2 C335 0 1uF R332 100 C344 0 1uF D304 ZD5 6B 2 1 R320 47 R337 3K3 R482 120F FB303 PBY201209T 300Y S I326B 74HC14 3 4 C301 1uF 16V R305 47K C518 0 1uF C302 0 1uF R497 8K2F R308 2K2 C331 0 1uF R509 4K7 FB308 SBK160808T 101YS Q301 MMBT3904 2 1 3 R311 47 C521 0 1uF R314 100 R516 10R R476 10K R322 100 R309 2K2 R490 ...

Page 136: ...21 122 123 124 125 126 127 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 128 129 DQ15_A DQ6_A DQ5_A DQ4_A DQ3_A DQ2_A DQ1_A DQ0_A ...

Page 137: ... DQ0 DQ1 VSSQ DQ2 DQ3 VDDQ DQ4 DQ5 VSSQ DQ6 DQ7 VDDQ LDQM WE CAS RAS CS BA A10 A0 A1 A2 A3 VDD VSS A4 A5 A6 A7 A8 A9 NC CKE CLK UDQM NC VDDQ DQ8 DQ9 VSSQ DQ10 DQ11 VDDQ DQ12 DQ13 VSSQ DQ14 DQ15 VSS Q309 MMBT3904 3 2 1 C428 0 1uF R463 2K2 C352 0 1uF C448 0 1uF FB332 PBY170 I311 K4S161622H UC55 TSOP 50P 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 3...

Page 138: ... XIN XOUT GREEN 1 OVR 1 PWR 2 OVR 2 PWR 3 OVR 3 PWR 4 OVR 4 D D BUSPOWER RESET VCC1 SPI _CS TEST VCC3 VCC6 GND4 GND7 GND3 VCC2 GND1 GND8 GND9 GND10 GND11 VCC8 VCC9 VCC10 VCC11 AMBER 3 AMBER 4 GREEN 3 GREEN 4 DD 1 DD 2 DD 3 DD 4 DD 1 DD 2 DD 3 DD 4 R426 220K R436 15K R411 0 FB347 PBY201209T 170Y S R431 0 C491 0 1uF FB348 PBY201209T 170Y S FB345 PBY201209T 170Y S C454 220uF 10V R415 NC P310 USB_A_DU...

Page 139: ... 50V ZD804 22B I802 LTV817 1 2 3 4 R802 1M 1 4W MGF C830 4700P 1KV X7R Q803 FQPF13N50C 1 2 3 ZD881 27C R852 33 R881 2M 1 4W MGF R857 22 MOF F801 3 15AH250V R842 1K 0805 R805 100 MOF C846 1000U 16V C811 470U 35V D816 1N4148 2 1 D801 P6KE180A C802 1000P 250V D807 ER306 ZD803 27C R848 10K RM0805 ZD802 30D C817 1000P 0805 X7R ER2819 5 1 6 4 10 R808 29 4K 1 RM0805 D808 1N4148 2 1 D814 PG108R R822 18K 0...

Page 140: ...11 1 PACKING SPECIFICATION TABLE OF CONTENTS Page B Version 11 2 ...

Page 141: ...11 2 ...

Page 142: ...KING_25mm w x45m_ LITEON 7749600200P0A B Black 8 WIRING TIE B Black 9 MANUAL ASSY_NEC DS_U20BNL_ 20WGX2 L205GJ 7730302952P0A B Black 10 COVER_CABLE MANAGEMENT_ 6700_PC ABS 94V0 7742611981P0A B Black 11 CARD_SETUP CARD_NEC DS_U20BNL _EMEA 7730203294P0A B Black 12 PAPER BOARD_555 247 7749405360P0A B Black 13 PE BAG FOR COVER 7749002500P0A B Black 14 TAPE_MASKING_PACKING_25mm w x45m 7749600200P0A B B...

Page 143: ...12 1 Revision History Revision Revision New Issue 1st Edition 2006 03 ...

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