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ViewSonic Corporation

Confidential - Do Not Copy

VX2255wmh-4

VX2255wmb-4

DC output voltage is unstable

Unstable power

Check sampling
Circuit

Check R822,
R823, R824

Change R822,
R823, R824

Check the R pin
voltage of IC803
about 2.5V

Check R819, R820

Check R818, D804,

C807 if short

Change
R818, D804,
C807

Check pin2 of
IC802 voltage
is 3V

Check pin1 of
IC802 voltage
below 1V

Change R808, R 809,

R810, R 811, R815,
R814,Q803

END

Check the C pin
voltage of
IC803 if 3V

Change
IC803

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Содержание VS11661

Страница 1: ... Model No VS11661 22 wide Color TFT LCD Display VX2255wmb 4_VX2255wmh 4_SM Rev 1a Sep 2007 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual Downloaded from www Manualslib com manuals search engine ...

Страница 2: ...y of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes Trademarks Optiquest is a registered trademark of ViewSonic Corporation ViewSonic is a registered trademark of ViewSonic Corporation Al...

Страница 3: ...tion 4 3 Front Panel Function Control Description 23 4 Circuit Description 29 5 Adjusting Procedure 31 6 Trouble Shooting Flow Chart 44 7 Block Diagrams 53 8 Schematic Diagrams 54 9 PCB Layout Diagrams 61 10 Exploded Diagram And Spare Parts List 65 11 Recommended Spare Parts List 70 Downloaded from www Manualslib com manuals search engine ...

Страница 4: ...dry environment If it gets wet unplug the power cable immediately and consult your closed dealer z Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth not directly onto the glass screen z Do not place heavy objects on the monitor or power cord 2 PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassi...

Страница 5: ...y touch the metal frame of the LCD panel or the front cover of the monitor Do not touch the surface of the panel Surface of the panel is pressed by fingers and that may cause Mura Take out the monitor with cushions Take out the monitor by grasping the LCD panel and that may cause Mura Downloaded from www Manualslib com manuals search engine ...

Страница 6: ...ethods Incorrect Methods Place the monitor on a clean and soft foam pad Place the monitor on foreign objects That could Scratch the surface of the panel or cause Mura The panel is placed facedown on the lap That may cause Mura Downloaded from www Manualslib com manuals search engine ...

Страница 7: ...audio Power Consumption Off Mode Max 1 W Audio 2W THD 10 Max Yes WebCam 1 3M USB2 0 Windows XP Cable type A to type B Yes Tilt Yes 20 and 5 Swivel 360 Pivot No Ergonomics Height Adjust 80mm OSD Control 1 2 Yes Physical W x H x D 528 W x 450 H x 225 D mm Dimension Package W x H x D 572 W x 525 H x 267 D mm Physical Net Weight 6 0 Kg 13 3 lbs Weight Package Gross Weight 8 4 Kg 18 6 lbs Temperature 3...

Страница 8: ...endix G Analog Cable 1 8 m color black with PC 2001 and Hot Plug Detect DDC YES DVI D Cable YES WebCam Hardware spec 1 3M pixel OS support Windows XP Vista Interface support USB 2 0 type A to type B Program support Skype Windows Live Messenger ViewSonic CD Wizard ViewSonic Quick Start Guide WebCam AP Wizard Arabic English Finnish Spanish German Italian Japanese Swedish Polish Korean Portuguese Rus...

Страница 9: ...reen 2 TMDS Digital Video Impedance 75 Ohms Analog 100 Ohms Digital Maximum PC Video Signal 950 mV with no damage to monitor Maximum Mac Video Signal 1250 mV with no damage to monitor Sync Signals TTL DDC 2B Compliant with Revision 1 3 DDC CI Compliant with Revision 1 1 HDCP HDCP code inside and compatible Sync Compatibility Separate Sync Composite Sync SOG Video Compatibility Shall be compatible ...

Страница 10: ...s nominal line voltage for one cycle with no damage Power Supply Missing Cycle Immunity Shall be able to function properly without reset or visible screen artifacts when cycle of AC power is randomly missing at nominal input Power Supply Acoustics The power supply shall not produce audible noise that would be detectable by the user Audible shall define to be in compliance with ISO 7779 DIN EN27779...

Страница 11: ...480 72 Hz 38 kHz V V V V 9 640 x 480 75 Hz 38 kHz V V V V 10 640 x 480 85 Hz 43 kHz V V V V 11 720 x 400 70 Hz 32 kHz V V V V 12 720 x 400 85 Hz 38 kHz V V V V 13 720 x 480 60 Hz 29 8 kHz V V V V 14 720 x 576 50 Hz 31 3 kHz V V V V 15 800 x 600 56 Hz 35 1 kHz V V V V 16 800 x 600 60 Hz 38 kHz V V V V 17 800 x 600 72 Hz 48 kHz V V V V 18 800 x 600 75 Hz 47 kHz V V V V 19 800 x 600 85 Hz 54 kHz V V ...

Страница 12: ...e should be executed when Switch 1400 x 1050 60Hz and 1680 x 1050 60Hz by 1 2 short cut key 46 1440 x 900 60 Hz 55 9 kHz V V V V 47 1440 x 900 75 Hz 70 6 kHz V V V V 48 1600 x 1200 60 Hz 75 kHz V V V V 49 1680 x 1050 60 Hz 65 3 kHz ü V X V 1 Tolerance 2KHz if the range dose not cover other timing mode 2 Any timing not in the list it should display as normal or show on OUT OF RANGE OSD message with...

Страница 13: ...utton 2 must be one shot logic operation i e there should be no cycling Reaction Time OSD must fully appear within 0 5s after pushing Button 1 Short Cuts Function from the button s 1 Main Menu 2 Input toggle Analog Digital or To immediately activate Audio menu Press the 3 seconds to switch the OD on off Recall both of audio and mute to default 1 2 Toggle 1400x1050 and 1680x1050 mode when input 140...

Страница 14: ... short cuts function for the buttons The OSD lock will be activated by pressing the front panel control buttons 1 for 10 seconds If the user then tries to access the OSD by pressing any of the buttons 1 2 a message will appear on the screen for 3 seconds showing OSD Locked The OSD lock will be deactivated by pressing the front panel control buttons 1 again for 10 seconds Note1 When the OSD is lock...

Страница 15: ...ote Memory Recall should have no effect for Language Power Lock User Color Settings or Input Priority Resolution Notice Actions Resolution Notice OSD should show on screen after changing to non native mode for 30 sec The OSD should disappear after 10 sec or by pushing button 1 or 2 Resolution Notice function should be disabled when push button 2 under Resolution Notice OSD 0 Touch Function Actions...

Страница 16: ...rs stay off when the rest of the monitor is in power saving Note There is no guarantee 1 W at power consumption in Active Off mode when the Audio Cable is connected WebCam Input interface USB 2 0 Maximum Amp power output Watt 0 8 W Webcam action indicator AP on Blue AP off dark Monitor power off dark Webcam power off the same time When the monitor into sleeping mode The webcam power off the same t...

Страница 17: ...5 point Condition CT User Color Contrast Max Brightness Max 300cd Typ after 30 minute warm up 250cd Min after 30 minute warm up Brightness Uniformity 80 typ 75 min Contrast Ratio 1000 1 typ TBD min Color Depth 16 7 million colors 6 bits 2 bits FRC Viewing Angle Horizontal Ultra TN type CR 10 Typical 170 Minimum 140 CR 5 Typical 178 Minimum 160 Viewing Angle Vertical Ultra TN type CR 10 Typical 160...

Страница 18: ...ser Color Contrast Max Brightness Max 300cd Typ after 30 minute warm up 250cd Min after 30 minute warm up Brightness Uniformity 76 typ 70 min Contrast Ratio 1000 1 typ 700 1 min Color Depth 16 7 million colors 6 bits 2 bits FRC Viewing Angle Horizontal Ultra TN type CR 10 Typical 170 Minimum 150 CR 5 Typical TBD Minimum TBD Viewing Angle Vertical Ultra TN type CR 10 Typical 160 Minimum 140 CR 5 Ty...

Страница 19: ...User Color Contrast Max Brightness Max 300cd Typ after 30 minute warm up 250cd Min after 30 minute warm up Brightness Uniformity 80 typ 75 min Contrast Ratio 1000 1 typ 700 1 min Color Depth 16 7 million colors 6 bits 2 bits FRC Viewing Angle Horizontal Ultra TN type CR 10 Typical 170 Minimum 150 CR 5 Typical 178 Minimum 160 Viewing Angle Vertical Ultra TN type CR 10 Typical 160 Minimum 140 CR 5 T...

Страница 20: ...0 40 81 80 81 40 50 71 4F 01 01 21 39 90 30 62 1A 60 27 40 68 B0 36 00 D6 2C 11 00 70 00 1C 00 00 00 FF 00 51 52 4C 80 30 37 30 31 30 30 30 30 31 0A 90 00 00 00 FD 00 32 4B 18 52 11 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 58 32 32 35 35 77 120 6D 2D 34 0A 20 20 00 E4 ______________________________________________________________________ 08 09 ID Manufacturer Name ________________ VSC 11 ...

Страница 21: ...VESA 800 X 600 60Hz VESA 36 ESTABLISHED TIMING II 800 X 600 72Hz VESA 800 X 600 75Hz VESA 832 X 624 75Hz Apple Mac II 1024 X 768 60Hz VESA 1024 X 768 70Hz VESA 1024 X 768 75Hz VESA 1280 X 1024 75Hz VESA 37 Manufacturer s Reserved Timing 1152 X 870 75Hz Apple Mac II 38 53 Standard Timing Identification 1680 X 1050 60Hz 1600 X 1200 60Hz 1440 X 900 60Hz 1400 X 1050 60Hz 1280 X 1024 60Hz 1280 X 960 60...

Страница 22: ..._____________________________________________ 72 89 Detailed Timing Descriptor Block 2 Monitor Serial Number QRL070100001 ______________________________________________________________________ 90 107 Detailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 75 Hz Min Horiz Freq 24 KHz Max Horiz Freq 82 KHz Pixel Clock 170 MHz Secondary GTF Not Supported ____...

Страница 23: ...50 71 4F 31 0A 21 39 90 30 62 1A 60 27 40 68 B0 36 00 D6 2C 11 00 70 00 1C 00 00 00 FF 00 51 52 4C 80 30 37 30 31 30 30 30 30 31 0A 90 00 00 00 FD 00 32 4B 18 52 11 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 58 32 32 35 35 77 120 6D 2D 34 0A 20 20 00 39 ______________________________________________________________________ 08 09 ID Manufacturer Name ________________ VSC 11 10 Product ID Cod...

Страница 24: ...BLISHED TIMING II 800 X 600 72Hz VESA 800 X 600 75Hz VESA 832 X 624 75Hz Apple Mac II 1024 X 768 60Hz VESA 1024 X 768 70Hz VESA 1024 X 768 75Hz VESA 1280 X 1024 75Hz VESA 37 Manufacturer s Reserved Timing 1152 X 870 75Hz Apple Mac II 38 53 Standard Timing Identification 1680 X 1050 60Hz 1600 X 1200 60Hz 1440 X 900 60Hz 1400 X 1050 60Hz 1280 X 1024 60Hz 1280 X 960 60Hz 1152 X 864 75Hz 640 X 400 70H...

Страница 25: ..._____________________________________________ 72 89 Detailed Timing Descriptor Block 2 Monitor Serial Number QRL070100001 ______________________________________________________________________ 90 107 Detailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 75 Hz Min Horiz Freq 24 KHz Max Horiz Freq 82 KHz Pixel Clock 170 MHz Secondary GTF Not Supported ____...

Страница 26: ...n for the highlighted control Standby Power On Off Power light Blue ON Orange Power Saving Displays the Main Menu or exits the control screen and saves adjustments Webcam indicator Webcam Headphone jack Microphone hole Scrolls through menu options and adjusts the displayed control Increases the volume decreases the volume and mutes the audio Downloaded from www Manualslib com manuals search engine...

Страница 27: ...o save the adjustments and exit the menu press button 1 twice The following tips may help you optimize your display Adjust the computer s graphics card so that it outputs a 1680 x 1050 60Hz video signal to the LCD display Look for instructions on changing the refresh rate in the graphics card s user guide If necessary make small adjustments using H POSITION and V POSITION until the screen image is...

Страница 28: ...olume increases the volume decreases the volume and mutes the audio Mute temporarily silences audio output Color Adjust provides several color adjustment modes including preset color temperatures and a User Color mode which allows independent adjustment of red R green G and blue B The factory setting for this product is 6500K 6500 Kelvin sRGB This is quickly becoming the industry standard for colo...

Страница 29: ... 1 To select color R G or B press button 2 2 To adjust selected color pressSandT Important If you select RECALL from the Main Menu when the product is set to a Preset Timing Mode colors return to the 6500K factory preset Information displays the timing mode video signal input coming from the graphics card in the computer the LCD model number the serial number and the ViewSonic website URL See your...

Страница 30: ...en image left or right and up or down Fine Tune sharpens the focus by aligning text and or graphics with pixel boundaries NOTE Try Auto Image Adjust first Sharpness adjusts the clarity and focus of the screen image Setup Menu displays the menu shown below Language Select allows the user to choose the language used in the menus and control screens Downloaded from www Manualslib com manuals search e...

Страница 31: ...ws the user to move the OSD menus and control screens OSD Timeout sets the length of time the OSD screen is displayed For example with a 30 second setting if a control is not pushed within 30 seconds the display screen disappears OSD Background allows the user to turn the OSD background On or Off Memory Recall returns the adjustments back to factory settings if the display is operating in a factor...

Страница 32: ... such as the keypad the backlight LED and audio general purpose input output pins a Clock Generation Crystal Input Clock OSCI and OSCO This is the input pair to an internal crystal oscillator and Corresponding logic A 12MHz crystal is recommended b Hardware Reset Pin 48 Hardware Reset signal is generated by NT68625F U3 Pin 48 It assert a reset signal at least 1ms c Analog to Digital Converter The ...

Страница 33: ...n Inverter and Power regulator The electrical specification described as followings 4 2 1 Power characteristics Rated Input Voltage 100 240 Vac 50 60Hz Operation Input Voltage Range 90 264 Vac 47 63Hz Max Input AC Current 2A Efficiency 5Vdc load 3A Brightness Voltage from 0 3 3 3Vdc ON OFF Voltage High 3 0Vdc Low 0Vdc Brightness Voltage Vadj 0 3Vdc Max 3 0Vdc Min Input On Off Voltage High 3 0Vdc L...

Страница 34: ... the monitor Hot Key Operation 1 Main Menu 2 Input toggle Analog Digital To immediately activate Brightness Contrast menu Recall both of Contrast and Brightness to default 1 2 Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode 1 Keep pushing 3 sec White Balance Not shown on user s guide 1 Power Lock 1 OSD Lock 2 HDCP switch Æ on DDC CI off DDC2B Factory Mode Remark All the short cu...

Страница 35: ... OSD Position V Position OSD Time Out Setup Menu OSD Background On Off Memory Recall 5 3 2 OSD lock Menu function OSD Lock Menu Function Check Item Method Phenomenon Activate OSD lock 1 10S Press any of buttons 1 2 will appear OSD Locked 3s Deactivate OSD lock 1 10S again NOTICE When the OSD is locked will lock all functions Status bar indicating OSD Lock or Unlock is in progress and when complete...

Страница 36: ...shing button 1 or 2 Deactivate Resolution Notice Menu Push button 2 under Resolution Notice OSD select Disable 5 3 5 Factory Mode Introduction When input the signal press power key to turn off the monitor Press 2 at the same time so as to enter factory mode After power on press Menu 1 key you can see the Factory menu INL MT220WW01 Currently using panel model name V2 070328 Currently using firmware...

Страница 37: ...s Power to restart monitor EDID Rewrite EDID data to EEPROM If we need to rewrite the EEPROM data please confirm the following steps 1 Plug in VGA Cable we can rewrite the EDID data to EEPROM by using EDID Rewrite program 2 If the EDID Rewrite process finished please pull out VGA cable and press 2 at the same time 3 Pull out AC power cable or press power key to restart Upload firmware to MCU via V...

Страница 38: ...35 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 3 Select Run start ISP 4 When the picture show Verify OK ISP finished Downloaded from www Manualslib com manuals search engine ...

Страница 39: ...s switching check 1 Use Chroma Pattern Generator to make sequence VESA 640x480 800x600 1024x768 1280x1024 MAC 832x624 DOS 640x350 720x400 the detail supported modes and power saving signal 2 Confirm the above timing modes must be full screen and the picture must be normal 3 LED is Orange at power saving mode Chroma Signal Generator Y measurement at default setting 1 Set brightness to default value...

Страница 40: ...37 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 Disassembly Procedure ª HINGE COVER ª Adjust BASE ª BACK COVER Downloaded from www Manualslib com manuals search engine ...

Страница 41: ...38 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 ª ª Web camera ª BEZEL Downloaded from www Manualslib com manuals search engine ...

Страница 42: ...39 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 ª PANEL ª MICROPHONE Power key board ª Downloaded from www Manualslib com manuals search engine ...

Страница 43: ...40 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 ª ª LVDS CABLE KEYPOWER CABLE I F BOARD ª Downloaded from www Manualslib com manuals search engine ...

Страница 44: ...41 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 ª CHASSIS SPEAKER ª P I BOARD ª Downloaded from www Manualslib com manuals search engine ...

Страница 45: ...42 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 Downloaded from www Manualslib com manuals search engine ...

Страница 46: ...or in the PE bag and seal the bag with tape Figure 2 Figure 1 Figure 2 1 3 Put the cushions on the monitor Place the monitor into the carton and then put all the accessories into the carton At last close the carton and seal it with tape Figure3 y Figure 3 AUDIO CABLE POWER CABLE MONITOR HEAD DVI CABLE D SUB CABLE Downloaded from www Manualslib com manuals search engine ...

Страница 47: ...olor that means the problem happen in the analog circuit part if only some scale appears abnormal color that stand the problem happen in the digital circuit part z If you check the H V position please use the crosshatch pattern z This LCM support more than 30 timing modes if the input timing mode is out of specification the picture may appears abnormally z If brightness uneven repairs Inverter cir...

Страница 48: ...45 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 Interface BOARD DIAGRAM Downloaded from www Manualslib com manuals search engine ...

Страница 49: ...e Check IC802 C804 T801 Check circuit if short Check F801 P801 RT 801 D801 Check pin6 of IC802 voltage about 12V CheckC810 D803 C807 Check pin2 of IC802 voltage about 3V Check primary OVP OLP and secondary Check pin1 of IC802 voltage is below 1V Check R811 R810 R809 R808 R814 END Downloaded from www Manualslib com manuals search engine ...

Страница 50: ...4 Change R822 R823 R824 Check the R pin voltage of IC803 about 2 5V Check R819 R820 Check R818 D804 C807 if short Change R818 D804 C807 Check pin2 of IC802 voltage is 3V Check pin1 of IC802 voltage below 1V Change R808 R 809 R810 R 811 R815 R814 Q803 END Check the C pin voltage of IC803 if 3V Change IC803 Downloaded from www Manualslib com manuals search engine ...

Страница 51: ...hange R822 R823 R824 Check the R pin voltage of IC803 about 2 5V Check R819 R820 Check R818 D804 C807 if short Change R818 D804 C807 Check pin2 of IC802 voltage is 3V Check pin1 of IC802 voltage below 1V Change R808 R 809 R810 R 811 R815 R814 Q803 END Check the C pin voltage of IC803 if 3V Change IC803 Downloaded from www Manualslib com manuals search engine ...

Страница 52: ... on pin4 of IC501 Yes No Check I F BD Is there High leve voltage on pin10 of IC 501 Yes No Check I F BD Vsense voltage is 2 9V Yes Yes Lamp connector opened Are there PWM signal on pin1 pin15 of IC501 No No IC501 Failure Pin 5 of IC501 voltage is Low level Yes Yes Feedback circuit failure Yes Check C524 R528 R533 D507 Led lamp is OK No backlight No Pin3 of IC501 voltage is high level voltage Yes I...

Страница 53: ...ck VCC3 3V and VCC1 8V Check FB103 C128 C141 Check Reset Waveform U104 Check C151 Check Crystal Waveform U104 pin127 128 Check C150 C152 X1 Check CCFL Enable U104 Check pin10 of IC501 Invert fail U104 fail Check R147 R111 R112 and Q106 NG OK OK OK OK NG OK OK NG NG NG Check FB102 C142 C147 NG Downloaded from www Manualslib com manuals search engine ...

Страница 54: ...een LVDS cable reinsert NG Change LVDS cable NG Check VLCD Is 5V NG Check panel Enable of Panel Enable OK Check Q101 Q103 and Q104 END OK OK OK Check VLCD singals Workmanship LVDS cable NG OK Panel Fail Check CN104 White Screen Downloaded from www Manualslib com manuals search engine ...

Страница 55: ...4 VX2255wmb 4 Bad Screen Bad Screen LVDS Cable Reinsert NG Change LVDS Cable NG OK CheckU105and SDO SCZ SCKSDI RSTN OK NG Workmanship Check X1 C150 and C152 SDO SCZ SCK SDI Check Stalcry pin 127 and pin128 Downloaded from www Manualslib com manuals search engine ...

Страница 56: ...ED Sampling Voltage feedback EEPROM 24C04 Audio Input AC Input VGA Input Key Input Speaker Panel Back lamp Regulator 5V to 3 3V Rectifier Filter Circuit Rectifier filter 16V Output Sampling Voltage feedback VGA Input Circuit SCALER MCU TSUMU058J Audio Amplifier TDA8496L MCU Volume Control 16V Input ON OFF Brightness ON OF PWM Control NCP1337 EEPROM AT24C04N DVI DVI Input HDCP DVI Input Circuit Opt...

Страница 57: ...084K33LA 3 1 2 VIN ADJ VOUT R112 100 C110 4 7u 10V R101 33K R110 4K7 R108 20K C105 0 1 16V R109 470 R106 4K7 C103 0 1 16V Q106 PMBT3904 1 3 2 Q104 PMBT3904 1 3 2 U102 LD1117AL 1 8V 3 1 2 VIN ADJ VOUT R105 470 CN102 2x4P 2 0mm 1 2 3 4 5 6 7 8 1 3 2 Q102 PMBT3906 CN101 8P 2 0mm 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Q101 AP2305GN 1 3 2 C111 NC 1u 16V 1 3 2 Q105 PMBT3906 D101 SKS20 04AT R103 51 R102 1K C106...

Страница 58: ...V99 1 3 2 C113 0 047u 16V ZD202 5V6 R124 100 R117 75 R214 10 1 D105 BAV99 1 3 2 C202 0 1 16V C115 0 047u 16V R216 10 1 D207 BAV99 1 3 2 U103 AT24C02BN 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC C125 0 1 16V ZD103 5V6 Q201 PMBT3904 1 3 2 R133 4K7 R116 75 C112 0 047u 16V R203 100 C120 NC 33p 50V D205 BAV99 1 3 2 R213 10 1 R131 2K2 C119 NC 33p 50V R118 75 C117 0 047u 16V R211 10 1 R122 10K ZD203 5V6...

Страница 59: ...SOGIN0 BIN0P RIN0M GIN0M BIN0M HSYNC0 VSYNC0 REXT REFP REFM SDO SCK CSZ SDI GPIO_P24 PWM2 LVACKM XIN XOUT LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M LVACKP LVA3M LVA3P GND GND RX2P RX2N RX1P RX1N AVDD_33 RX0P RX0N RXCKP RXCKN GND GND GND VDDC VDDP MODE VCTRL VDDP DDCA_SDA RS232_TX DDCA_SCL RS232_RX DDCD_SDA DDCD_SCL NC AVDD_33 VDDP GPIO_P22 PW...

Страница 60: ...Sonic Corporation SCALER GND USB_VCC DATA DATA C601 NC 0 1 16V C604 220u 16V R602 4K7 1 2 3 4 CN602 UC11123 LK1 1 2 3 4 5 6 R601 20K CN603 5P 1 5mm 90 5 4 3 2 1 Q601 AP2305GN 1 3 2 C603 10u 25V R603 4K7 C602 0 1 16V Q602 PMBT3904 1 3 2 USB_C 4 Downloaded from www Manualslib com manuals search engine ...

Страница 61: ...2P 2 0mm 90 NC 1 2 C705 470u 16V R710 2K C707 470u 16V C708 220u 16V R709 2K C709 0 1 50V R713 100 R711 5K6 R705 30K P701 4 3 2 1 C704 0 47 16V R707 1K U701 TDA8496L 8 11 15 5 4 3 2 6 1 7 9 10 14 13 12 S_GND GND GND INL VAROUT_L VOLUME VAROUT_R NC INR SVR STBY MUTE OUTR VS OUTL C710 4700p 50V R714 30K C703 0 1 50V C706 0 47 16V J706 JUMP R703 10K R708 4K7 R704 47K C712 470u 25V R702 10K Q702 PMBT3...

Страница 62: ...0V D801 UL4 06 1 2 4 3 ZD803 12V R807 750 1 R827 10R R819 1K C809 47p 1KV R810 470K R830 10K R815 12K 1 C803 0 47 275V CN801 60mm 8P 1 2 3 4 5 6 7 8 Q803 NC PMBT3906 3 1 2 R817 200R C811 0 1 50V IC801 LTV817M 3 1 4 2 R812 10K C812 220p 50V C805 2200p 400V NC C820 47u 25V C826 12p 1KV Q801 2PC1815GR 1 3 2 R813 1K R802 1M D806 1N4148 C821 0 1 100V R804 68R 1 2W 1 2 C804 150u 420V C808 100p 1KV C R A...

Страница 63: ... 3 D507 BAV99 1 2 3 C514 2700p 50V C523 10p 3KV R502 680 NC C511 0 022 25V R531 1K6 1 R535 15 R527 200 C527 2700p 50V C515 2 2u 16V R514 47K 1 R532 33 R525 1M5 2KV R505 33 IC501 OZ9938G 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DRV1 VDDA TIMER DIM ISSEN VSEN OVPT NC NC ENA LCT SSTCMP CT GNDA DRV2 PGND CN503 2P 1 2 H L R506 1M5 2KV D511 SN4148 C522 1000p 50V R510 1K6 1 R523 470 1 C525 2200p 50V R516 6...

Страница 64: ...61 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 9 PCB Layout Diagrams Downloaded from www Manualslib com manuals search engine ...

Страница 65: ...62 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 Downloaded from www Manualslib com manuals search engine ...

Страница 66: ...63 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 Downloaded from www Manualslib com manuals search engine ...

Страница 67: ...64 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 Downloaded from www Manualslib com manuals search engine ...

Страница 68: ...65 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 10 Exploded Diagram and Exploded Parts List Downloaded from www Manualslib com manuals search engine ...

Страница 69: ...00R OSD KEYPAD LP2260 1 13 N A 79096050000R LENS KEYPAD LP2260 1 14 E 00008421 618100200200R SPEAKER LP2260 1 15 N A 501030206100R BUTTON POWER LP2260 1 16 N A 501030206110R BUTTON OSD W LP2260 1 17 N A 501120105420R LENS LP2260 1 18 N A 501120105410R COLOUR BAR B LP2260 1 19 E 00008423 619613000100R MIC LP2260 1 20 N A 506381000700R TAPE AGE 45mmx30m pc 10x45mm LE1709 ROH 3 21 N A 503060002700R G...

Страница 70: ...000R OSD KEYPAD LP2260 1 13 N A 79096050000R LENS KEYPAD LP2260 1 14 E 00008421 618100200200R SPEAKER LP2260 1 15 N A 501030206100R BUTTON POWER LP2260 1 16 N A 501030206111R BUTON OSD B LP2260 1 17 N A 501120105420R LENS LP2260 1 18 N A 501120105411R COLOUR BAR S LP2260 1 19 E 00008423 619613000100R MIC LP2260 1 20 N A 506381000700R TAPE AGE 45mmx30m pc 10x45mm LE1709 ROH 3 21 N A 503060002700R G...

Страница 71: ...68 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 Downloaded from www Manualslib com manuals search engine ...

Страница 72: ...L 1 PACKING PART LIST VX2255wmb 4 69 ViewSonic Corporation Confidential Do Not Copy VX2255wmh 4 VX2255wmb 4 ViewSonic Model Number VS11661 Rev 1a Item ViewSonic P N Ref P N Location Q ty 1 CB 00008200 453010100360R CABLE D SUB 15P MALE 6FT WHITE BLUE RoHS 1 2 CB 00008203 453030300380R CABLE DVI D 18 1P MALE 6FT WHITE ROHS 1 3 P 00008416 506040011900R CUSHION EPS L LP2260 1 4 N A 505040201700R INSU...

Страница 73: ...RT EEPROM Fly Back Transformer Microprocessor LCD TV Serial No Prefix QRL Rev 1a Item ECR ECN ViewSonic P N Ref P N Location Universal number 1 Cord Cable 10A 250V 6FT Australia A 00003671 453070800420R 2 Cord Cable 16A 250V 6FT Europe A 00003674 453070800210R 3 Cord Cable 5A 250V Singapore A 00003675 453070800230R 4 Cord Cable 10A 250V BLK 6FT China A 00005255 453070800170R 5 Cord Cable 7A 125V 6...

Страница 74: ...008394 714030009910R ASSY BEZEL B LP2260 37 N A 501010210210R BEZEL B LP2260 100 38 N A 506102000400R LOGO PLATE VIEWSONIC LE1709 THREE BIRDS 100 39 N A 501030206100R BUTTON POWER LP2260 100 40 N A 501120105400R LENS CAMERA LP2260 100 41 N A 501030206111R BUTTON OSD B LP2260 100 42 N A 501120105411R COLOUR BAR S LP2260 100 43 N A 501120105420R LENS LP2260 100 44 N A 506390500100R LABEL ENERGY STAR...

Страница 75: ...BEZEL W LP2260 100 38 N A 506102000400R LOGO PLATE VIEWSONIC LE1709 THREE BIRDS 100 39 N A 501030206100R BUTTON POWER LP2260 100 40 N A 501120105400R LENS CAMERA LP2260 100 41 N A 501030206110R BUTTON OSD W LP2260 100 42 N A 501120105410R COLOUR BAR B LP2260 100 43 N A 501120105420R LENS LP2260 100 44 N A 506390500100R LABEL ENERGY STAR LE1709 100 45 N A 714050010020R ASSY BACK COVER W LP2260 46 N...

Страница 76: ...djustment Procedure 6 Troubleshooting Flow Chart 7 Block Diagrams 8 Schematic Diagrams 9 PCB Layout Diagrams 10 Exploded Diagram and Exploded Parts List 11 Recommended Spare Parts List B Are you satisfied with this Service Manual Item Excellent Good Fair Bad 1 Service Manual Content 2 Service Manual Layout 3 The form and listing C Do you have any other opinions or suggestions regarding this servic...

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