ViewSonic VG2230wm-1 User Manual Download

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ViewSonic VG2230wm-1

Model No. VS114

22” Color TFT LCD

Display

(VG2230wm-1_SM Rev. 1a Oct. 2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Service Manual

Summary of Contents for VG2230wm-1

Page 1: ...ViewSonic VG2230wm 1 Model No VS11422 22 Color TFT LCD Display VG2230wm 1_SM Rev 1a Oct 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual...

Page 2: ...expressed or implied with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise...

Page 3: ...otices 1 2 Specification 4 3 Front Panel Function Control Description 14 4 Circuit Description 20 5 Adjustment Procedure 24 6 Troubleshooting Flow Chart 56 7 Recommended Spare Parts List 64 8 Exploded...

Page 4: ...voltage used in the inverter circuit the voltage is exposed in such areas as the associated transformer circuits 4 LCD Module Handling Precautions 4 1 Handling Precautions 1 Since front polarizer is e...

Page 5: ...low local ordinances or regulations for disposal 13 The LCD module contains a small amount of materials having no flammability grade The LCD module should be supplied with power that complies with the...

Page 6: ...cover of the monitor Do not touch the surface of the polarizer Surface of the panel is pressed by fingers this may cause MURA Take out the monitor with cushion Take out the monitor by grasping the LCD...

Page 7: ...c RGB Analog 75 ohms 0 7 1 0 Vp p DVI TMDS 100 ohms Separate Sync Composite Sync SOG Fh 24 82 kHz Fv 50 85 Hz 4 COMPATIBILITY PC Mac PC Compatibles from VGA up to 1680X1050 Non Interlaced Power Mac up...

Page 8: ...u Language Resolution Notice Input Priority OSD Position OSD Timeout OSD Background Memory Recall 1 Main Menu 2 Input Select Up or Dn Contrast Brightness Up Dn Recall both of Contrast and Brightness t...

Page 9: ...Off GREEN AMBER Normal 1 W 19 LOGISTICS Container Load Pallet Load UPC Code Serial Format EDID Code Country of origin 20 40 240 520 pieces 20 pieces 766907228816 QC9 Byte 10 0 x 1E Byte 11 0 x A2 CHI...

Page 10: ...imum 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 version 3 Sync Compatibility Separate Sync Compo...

Page 11: ...ssing 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 sh...

Page 12: ...Hz 13 720 x 400 85 Hz 37 9 KHz 14 720 x 480 60 Hz 31 5 KHz 15 720 x 576 50 Hz 31 3 KHz 16 800 x 600 56 Hz 35 1 KHz 17 800 x 600 60 Hz 37 9 KHz 18 800 x 600 72 Hz 48 1 KHz 19 800 x 600 75 Hz 46 9 KHz 2...

Page 13: ...Hz 28 1 KHz 55 1920 x 1080 60 Hz 33 8 KHz 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 w...

Page 14: ...should be change to Brightness OSD by push button 2 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...

Page 15: ...plete it will indicate Power Button Locked Note 2 Power should only be lockable in the On State Memory Recall Actions Memory Recall action on the analog and digital mode as below 1 Recall white balanc...

Page 16: ...2 dB Frequency response 100 Hz 20 Khz Distortion 10 THD 1kHz Vibration There should be no audible vibration with volume at 100 and treble bass at default Screen image There should be no affect on the...

Page 17: ...ed in Main Menu Controls on page 10 Main Menu with OSD controls Front Control Panel shown below in detail Scrolls through menu options and adjusts the displayed control Also a shortcut to display the...

Page 18: ...or down T buttons 5 To 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...

Page 19: ...Audio Adjust Volume 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 te...

Page 20: ...R green G and blue B 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...

Page 21: ...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...

Page 22: ...f 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 backgr...

Page 23: ...o save the cost of package and PCB material EDID Supplier should update the ID code byte 10 11 Manufacture Date byte 16 17 and Serial Number byte 72 89 Analog EDID Time 15 53 11 Date Tue Jul 11 2006 _...

Page 24: ...________________ 470 mm 22 Maximum Vertical Image Size __________________ 300 mm 23 Display Gamma ________________________________ 2 20 24 Power Management and Supported Feature s Active Off Very Low...

Page 25: ...ay No Stereo Horizontal Active Time 1680 pixels Blanking Time 560 pixels Sync Offset 104 pixels Sync Pulse Width 176 pixels Border 0 pixels Frequency 65 29 KHz Vertical Active Time 1050 lines Blanking...

Page 26: ...1 23 Max Horiz Freq 82 KHz Pixel Clock 170 MHz Secondary GTF Not Supported ______________________________________________________________________ 108 125 Detailed Timing Descriptor Block 4 Monitor Nam...

Page 27: ...1A 60 27 40 68 B0 36 00 DA 28 11 00 70 00 1C 00 00 00 FF 00 51 43 39 80 30 36 30 31 30 30 30 30 31 0A 90 00 00 00 FD 00 32 4B 1E 52 11 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 47 32 32 33 30...

Page 28: ...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 Id...

Page 29: ..._____________________________________ 72 89 Detailed Timing Descriptor Block 2 Monitor Serial Number QC9060100001 ______________________________________________________________________ 90 107 Detailed...

Page 30: ...he computer and LCD monitor on B Press the Auto button on monitor keypad to Auto Adjust C The LCD monitor will start the Auto Adjust process automatically and run for 10 consecutive seconds during whi...

Page 31: ...024 60Hz Test Pattern Full Screen 50 White Gray Inspection Item Bright Dot Particle Line Defect Mura 9 White Box Test Signal 1280 1024 60Hz Test Pattern Window standard pattern Inspection Item Particl...

Page 32: ...l 1280 1024 60Hz Test Pattern Vertical 64 256 Gray Scale Right Left From 0 to 100 White Inspection Item Line Defect Function Defect 15 Function Test Display pattern Item Pattern Description Remark 1 G...

Page 33: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 30 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8...

Page 34: ...uide 1 To setup ISP environment Hardware PC or Notebook Parallel Printer cable ISP tool Fig 1 Software ISP driver If the O S was Win2000 or Win XP please have to install PORT95NT exe Fig1 In order to...

Page 35: ...turywebsite www myson com tw 2 2 After extracting the zip file the total files list as Fig 2 2 and double click the file of setup exe to install Fig 2 2 2 3 Press Next button to continue see Fig 2 3 F...

Page 36: ...VG2230wm 1 33 2 5 Press Install button to continue see Fig 2 5 Fig 2 5 2 6 The Installer Information shows package warning press Ignore button to continue see Fig 2 6 Fig 2 6 2 7 Installation has fin...

Page 37: ...shortcut in the setting path or the program bar default setting see Fig 3 1 Fig 3 1 2 2 Security file is a key to use ISP function press button see Fig 3 2 Fig 3 2 3 3 The warning is used to remind u...

Page 38: ...ode Adjusting bar to decrease speed of IIC bus see Fig 3 4 Fig 3 4 3 5 At least 2 Command No of security code see Fig 3 5 and different security code between hardware ISP and software ISP The security...

Page 39: ...wSonic Corporation Confidential Do Not Copy VG2230wm 1 36 3 6 Fig 3 6 shows the setting for security code of hardware ISP it needs 4 Command No and key in command sequentially for 94 94 AC CA 53 Fig 3...

Page 40: ...Fig 3 7 shows the setting for security code of software ISP it needs 2 Command No and key in command sequentially for 7C 4C 77 The Command No and command must be set by user while coding About the det...

Page 41: ...o the MCU and select Auto item then press RUN button see Fig 4 1 4 2 If user changes the MTV type it must load file again or the buffer of load file will be cleared 4 3 CRC cyclic redundancy check the...

Page 42: ...to read MCU content 5 1 Only software ISP could read the MCU content it is according to program the boot code while coding The limitation is used for the security of customer s code Select Read Target...

Page 43: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 40 5 2 If user uses hardware ISP to read MCU content it shows as Fig 5 2 Fig 5 2...

Page 44: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 41 6 Re entry the ISP Mode When you could not select or click Reset MCU button and enter ISP mode again you refer the message as below...

Page 45: ...G2230wm 1 42 Note 1 Disable the Enter ISP Mode option to avoid the error message display 2 If you using the MTV312M64 or before MCU serials the MCU will always in ISP Mode even programming fail or era...

Page 46: ...he pin of HSCL 1 and HSDA 1 should keep in enable 4 Only software ISP could read the MCU content 5 MTV212M MTV312M MTV230M MTV412M MTV512M CS8954 support software ISP 7 3 Boot code of software ISP 1 I...

Page 47: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 44 7 4 The followings show the relationship between the code and the security code...

Page 48: ...wSonic Corporation Confidential Do Not Copy VG2230wm 1 45 8 ISP Adaptor Schematic 9 Adaptor Linking The Monitor Set Connect with Printer Cable 25Pins to 25Pins PC HOST Connect with VGA Cable ISP Adapt...

Page 49: ...ct the monitor Figure 1 1 2 Put the monitor in the PE bag and seal the bag with tape Figure 2 Figure 1 Figure 2 1 3 Put the cushion into the carton then place the monitor on the cushion Figure 3 1 4 P...

Page 50: ...e Stand Assy 1 1 Remove Stand Cover 2 Separate Rear Cover Rear Case Assy Separate Bezel hooks to take Bezel and Rear Cover apart Step 1 Loose and remove 3 screws Step 2 Separate Bezel hooks to take Be...

Page 51: ...ower Board and AD Board 3 1 Remove Metal Cover Attention red cable blue cable Step 3 Remove Rear Cover Step 4 Completed Step 1 Remove FFC from OSD Board Step 3 Remove 4 pieces of Backlight wires Step...

Page 52: ...t Copy VG2230wm 1 49 3 2 Remove Power Board and AD Board Step 5 Loose and remove 2 screws Step 6 Loose and remove 4 screws Step 7 Remove the PCBA Cover Step 1 Loose and remove 4 screws Step 2 Remove L...

Page 53: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 50 Step7 Completed Step 4 Remove the FFC Step 5 Loose and remove 4 screws Step 6 Remove AD PCBA...

Page 54: ...ntial Do Not Copy VG2230wm 1 51 4 Change New AD Board and Power Board Step 1 Place new AD Board And fasten 4 fixed screws Step 3 Insert FFC Step 4 Insert 2 pieces of FFCs Step 2 Fasten 4 fixed screws...

Page 55: ...dential Do Not Copy VG2230wm 1 52 5 Remove OSD Board 6 Change New OSD Board Step 1 Separate both Audio Cable Step 2 Take OSD Board apart Step 3 Completed Step 1 Place New OSD Board Step 6 Fasten 4 fix...

Page 56: ...ot Copy VG2230wm 1 53 7 Add Cover to AD PCB Heatsink Step 2 Insert Audio cable to connectors of New OSD Board Step 1 Join the PCB Cover Step 2 Fasten 4 fixed screws Step 3 Fasten 2 fixed screws Step 3...

Page 57: ...ntial Do Not Copy VG2230wm 1 54 8 Rear Assy Stand Assembly Step 8 Completed Step 1 Place Rear Cover Step 2 Fasten 3 fixed screws Step 5 Insert 4 pieces of Backlight wires Step 6 Join LCD module and re...

Page 58: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 55 Step 5 Completed Step 4 Fasten 4 fixed screws Step 3 Place the Stand Assy...

Page 59: ...pair Testing Flash Dots Bright Dot Dark Dot Backlight Light Leakage Mura Image Sticking Brightness spot Particle Dot Defect Check Panel Light On Test Next Step Panel Change Should be Performed to Leve...

Page 60: ...Next Step TEST NG A Completed AD B Change CNT B Change Inverter B Change Power B Change Check Panel Display Noise Beat Display Shut Down Beat Display Flicker No Backlight Display Wave B Panel Change A...

Page 61: ...p TEST NG Completed B Booting Delay C Beat Display No Backlight Check PCBA AD B Change Inverter B Change Power B Change Check Panel Check PCBA Panel Change Power B Change Inverter B Change CNT B Chang...

Page 62: ...l Weak Line Peculiar Smell Check PCBA Check Panel Horizontal Weak Line Next Step TEST NG AD B Change Panel Change Horizontal Band Defect C Vertical Band Defect Power Saving Display Abnormal Check PCBA...

Page 63: ...D B Change CNT B Change OSD Cable Inverter B Change Power B Change OSD B Change AC Power Change DC Power CNT Cable Change Adapter Change Check Adapter Check PCBA Check Wire OSD Cable Change Inverter B...

Page 64: ...play Abnormal Check BIOS Inverter B Change Power B Change OSD B Change D sub cable Change VGA cable Change DVI cable Change BIOS Update Abnormal Loudspeaker Check PCBA Check Wire AD B Change CNT B Cha...

Page 65: ...B Change AD B Change Power B Change Panel Change CNT B Change CNT B Change Other Abnormal Display Next Step TEST NG Completed TV Function Display Abnormal Panel Change Should be Performed to Level 3...

Page 66: ...mpare the value with the preset values Please refer to Appendix Display Mode Fuzzy Image Adjust Phase Image too bright Adjust brightness and contrast by OSD Image too dark Adjust brightness and contra...

Page 67: ...77 D013175 17 CD ROM DC 00008133 76 D013171 18 SCREW 3 P 0 5 mm L 4 mm Pan Head Phillips Cross Recess HW 00000553 42A9930008 19 Screw M4 P 0 7 mm L 8 mm Round Head HW 00004042 42 D000649 20 SCREW M4...

Page 68: ...TD2120S LF Green II 1 22 HW 00008024 42 D003574 SCREW T3 P 1 058 mm L 5 mm Pan Head Phillips Cross Recess Hama Naka Motogawa Shye Ching Green II 2 23 HW 00008025 42 D005390 SCREW M3 P 0 5 mm L 6 mm Bi...

Page 69: ...N A 10 D013194 Software BIOS A220Z1 22Z1LR6000 ViewSonic Checksum Bank1 0x85 Bank2 0x02 RSDS RTD2120 Dual Audio Analog Audio Green II 1 50 CB 00002083 32F0000004 Accessory Cable DVI Black Jceprocable...

Page 70: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 67 8 Exploded Diagram and Exploded Parts List...

Page 71: ...H07 ISM Powerkey 1 4 CB 00008042 32 D013272 FCC 6 Pins A220Z1 H07 OSD Powerkey 1 5 N A 32 D013204 PCBA for A201P1 P01 H K1 1 6 B 00005704 35 D007990 PCBA for A201P1 P01 H K2 1 7 HW 00008024 42 D00357...

Page 72: ...ViewSonic Corporation Confidential Do Not Copy VG2230wm 1 69...

Page 73: ...on 1 4 P 00008134 78 D013275 EPS Foam Bottom 1 5 P 00008133 78 D013271 EPS Foam Top 1 6 A 00005071 32 D002330 Power Cord 1 7 CB 00005851 32 D002132 Monitor Cable 1 8 CB 00005678 32F2818011 Audio Cable...

Page 74: ...ion Confidential Do Not Copy VG2230wm 1 71 9 Block Diagram OSD Key Pad Audio Out D sub Analog Video Speaker AC Power LDO Main Board LIPS Backlight LCD Module DC 5V DVI D Digital Video 5V Signal Audio...

Page 75: ...CLK LED_GRN LED_ORG INV_ON OFF DDC2_SCL DDC2_SDA CONNECT DCDC_ON OFF MUTE VGA_5V BUS_POWER V5A RESET_MCU AUDIO_FUNCTION RESET_RTD B4 04_SCALER YOUT V18_ESD GVON GVOFF VOL_ADJ DDC_CLK DDC_DAT RTD_SDIO0...

Page 76: ...D_POWER TP 1 TP5 TP5 1 2 FB1 FB1 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 CON1 CON1 L1 L1 R15 R15 R6 R6 C13 C13 1 2 Z1 Z1 1 3 2 D1 D1 1 2 FB3 FB3 C11 C11 R13 R13 V1 V1 CA1 CA1 C6 C6 C8 C8 C9 C9 R16 R16 R9...

Page 77: ...D6 C20 C20 1 3 2 D4 D4 DAT2 1 DAT2 2 2 4shield 3 DAT4 4 DAT4 5 DDC SCL 6 DDC SDA 7 VSYNC 8 R 25 HSYNC 28 DAT1 9 DAT1 10 1 3shield 11 DAT3 12 DAT3 13 5V 14 SYNC GND 15 HPD 16 G 26 RGB GND 29 DAT0 17 DA...

Page 78: ...19 R19 R26 R26 1 2 D16 D16 R39 R39 C26 C26 1 3 2 Q1 Q1 R21 R21 R41 R41 GND 7 VCC 14 1B 3 2B 6 3B 8 4B 11 1A 2 2A 5 3A 9 4A 12 2OE 4 1OE 1 3OE 10 4OE 13 U1 U1 R32 R32 C25 C25 DA5 P5 5 1 P5 6 HSCL2 2 P5...

Page 79: ...R48 R54 R54 R51 R51 R55 R55 C38 C38 R53 R53 R44 R44 R42 R42 1 2 FBS1 FBS1 C30 C30 R46 R46 C34 C34 C37 C37 R75 R75 C36 C36 C35 C35 R49 R49 1 2 3 Q14 Q14 1 2 FB5 FB5 R47 R47 1 2 FB6 FB6 C31 C31 ADC_GND...

Page 80: ...B 7 A 8 CA CP1 CA CP1 R59 R59 GND 1 VO 3 3V 2 VI 5V 3 VO 3 3V 4 U6 U6 TP 1 AUTO_ADJ1 AUTO_ADJ1 R60 R60 TP 1 GVOFF1 GVOFF1 L5 L5 1 2 B2 B2 GND 1 VO 3 3V 2 VI 5V 3 VO 3 3V 4 U7 U7 R68 R68 R71 R71 R73 R...

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Page 89: ...rcuit Description 5 Adjustment Procedure 6 Troubleshooting Flow Chart 7 Recommended Spare Parts List 8 Exploded Diagram and Exploded Parts List 9 Block Diagrams 10 Schematic Diagrams 11 PCB Layout Dia...

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