Service Manual ViewSonic VG712s-1 Model No. VLCDS23719-6W 17” Color TFT LCD Display (VG712_SM_835 Rev.
Copyright Copyright ¤ 2004 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation.
TABLE OF CONTENTS 1. Precautions and Safety Notices 1 2. Specification 5 3. Front Panel Function Control Description 15 4. Circuit Description 22 5. Adjusting Procedure 25 6. Trouble Shooting Flow Chart 50 7. Recommended Spare Parts List 54 8. Exploded Diagram And Spare Parts List 57 9. Block Diagram 60 10. Schematic Diagrams 61 11.
1. Precautions and Safety Notices 1. Appropriate Operation (1) Turn off the product before cleaning. (2) Use only a dry soft cloth when cleaning the LCD panel surface. (3) Use a soft cloth soaked with mild detergent to clean the display housing. (4) Use only high quality and safety approved AC/DC power adapter. (5) Disconnect the power plug from AC outlet if the product is not used for a long period of time.
. LCD Module Handling Precautions 5.1 Handling Precautions (1) Since front polarizer is easily damaged, pay attention not to scratch it. (2) Be sure to turn off power supply when inserting or disconnecting from input connector. (3) Wipe off water drop immediately. Long contact with water may cause discoloration or spots. (4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
5.2 Handling and Placing Methods Correct Methods: Incorrect Methods: Only touch the metal frame of the LCD panel or the front cover of the monitor. Do not touch the surface of the polarizer. Surface of the LCD panel is pressed by fingers and that will probably cause “Mura.” Take out the monitor with cushions Take out the monitor by grasping the LCD panel. That will probably cause “Mura.
Place the monitor on a clean and soft foam pad. Place the monitor on foreign objects. That will probably scratch the surface of the panel or cause “Mura.” The panel is placed facedown on the lap. That will probably cause “Mura.
2. Specification 1. General Requirements General Specifications Test Resolution & Frequency Test Image Size 1280x1024 @ 60Hz Full Size Factory Default: Contrast = 70%, Brightness = 100% Contrast and Brightness Controls 2. Signal Interface Video Interface Analog Input Connector Digital Input Connector Default Input Connector Video Cable Connector DB-15 Pin out Video Signals DB-15 (Analog) DVI-I (Digital) Defaults to the first detected input Compliant DDC 2B 1. Video RGB (Analog) Separate 2.
4. Electrical Requirements Horizontal / Vertical Frequency Horizontal Frequency Vertical Refresh Rate 30 – 82 KHz 50 – 85* Hz. 1. Since 75Hz in panel spec, the image quality might be worse than <= 75Hz 2. For resolution 1280 x 1024, the vertical refresh rate up to 75 Hz; for the rest resolutions, the vertical refresh rate up to 85Hz 135 MHz 1280x1024@60Hz Maximum Pixel Clock Primary Preset Look up table timing <> 640 x 350 @ 70Hz, 31.5KHz 640 x 400 @ 60Hz, 31.5KHz 640 x 400 @ 70Hz, 31.
5. Audio Interface Speaker Specification Line input connection Line input signal Line input impedance Maximum power output (Electric) Signal to Noise Ratio Frequency response Distortion 3.5 mm stereo jack 1.0 Vrms 10 kOhm 3 W @ < 8% DISTORTION 72 dB 400 Hz – 20 KHz < 8 % THD (@1KHz) 6.
7. Mechanical Dimensions Width Height Depth Monitor Weight 378 mm (14.9 inch) 405 mm (16.0 inch) 177 mm ( 7.0 inch) 5.3 kg / 11.66 lbs Ergonomics Tilt Up 20 º +/- 20% -5 º +/- 20% Tilt Down 8.
9.
(21) Maximum Horizontal Image Size = 340 mm (22) Maximum Vertical Image Size = 270 mm (23) Display Gamma = 2.20 (24) Power Management and Supported Feature(s): Active Off/Very Low Power, Standard Default Color Space, Preferred Timing Mode Display Type = R/G/B Color (25-34) CHROMA INFO: Red X - 0.640 Green X - 0.290 Blue X - 0.140 White X - 0.310 Red Y - 0.340 Green Y - 0.610 Blue Y - 0.070 White Y - 0.
______________________________________________________________________ (54-71) Detailed Timing / Descriptor Block 1: 1280x1024 Pixel Clock: 108.00 MHz ______________________________________________________________________ Horizontal Image Size: 338 mm Vertical Image Size: 271 mm Refreshed Mode: Non-Interlaced Normal Display - No Stereo Horizontal: Active Time: 1280 pixels Blanking Time: 408 pixels Sync Offset: 48 pixels Border: 0 pixels Sync Pulse Width: 112 pixels Frequency: 63.
Appendix F: Digital EDID VG712s Digital EDID Time: 08:14:47 Date: Fri Jan 30, 2004 ______________________________________________________________________ ______________________________________________________________________ VIEWSONIC CORPORATION EDID Version # 1, Revision # 3 DDCTest For: ViewSonic VG712s ______________________________________________________________________ ______________________________________________________________________ 128 BYTES OF EDID CODE: 0 1 2 3 4 5 6 7 8 9 __________________
(21) Maximum Horizontal Image Size = 340 mm (22) Maximum Vertical Image Size (23) Display Gamma = 2.20 (24) Power Management and Supported Feature(s): = 270 mm Active Off/Very Low Power, Standard Default Color Space, Preferred Timing Mode Display Type = R/G/B Color (25-34) CHROMA INFO: Red X - 0.640 Green X - 0.290 Blue X - 0.140 White X - 0.310 Red Y - 0.340 Green Y - 0.610 Blue Y - 0.070 White Y - 0.
______________________________________________________________________ (54-71) Detailed Timing / Descriptor Block 1: 1280x1024 Pixel Clock: 108.00 MHz ______________________________________________________________________ Horizontal Image Size: 338 mm Vertical Image Size: 271 mm Refreshed Mode: Non-Interlaced Normal Display - No Stereo Horizontal: Active Time: 1280 pixels Blanking Time: 408 pixels Sync Offset: 48 pixels Sync Pulse Width: 112 pixels Border: 0 pixels Frequency: 63.
3. Front Panel Function Control Description Adjusting the Screen Image Use the buttons on the front control panel to display and adjust the OnView® controls which display on the screen. The OnView controls are explained at the top of the next page.
Do the following to adjust the screen image: 1 To display the Main Menu, press button [1]. NOTE: All OnView menus and adjustment screens disappear automatically after about 15 seconds. This is adjustable through the OSD timeout setting in the setup menu. 2 3 To select a control you want to adjust, press ▲ or ▼ to scroll up or down the Main Menu. After the control is selected, press button [2]. A control screen like the one shown below appears.
Main Menu Controls Adjust the menu items shown below by using the up ▲ and down ▼ buttons. Control Explanation Auto Image Adjust sizes and centers the screen image automatically. Contrast adjusts the difference between the image background (black level) and the foreground (white level). Brightness adjusts background black level of the screen image. Input Select toggles between inputs if you have more than one computer.
Control Explanation User Color— Individual adjustments for red (R), green (G), and blue (B). 1 2 To select color (R, G or B) press button [2]. To adjust selected color, press ▲ or ▼. 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 your computer, the LCD model number, the serial number, and the ViewSonic website URL.
Control Explanation Fine Tune sharpens the focus by aligning the text and/or graphic characters. NOTE: Try Auto Image Adjust first. Sharpness adjusts the clarity and focus of the screen image. Setup menu displays the menu shown below: Setup Menu Language Select Resolution Notice OSD Position OSD Time Out OSD Background On/Off 1: Exit 2: Select Language allows you to choose the language used in the menus and control screens. Resolution Notice allows you to enable or disable this notice.
Control Explanation OSD Position allows you to move the on-screen display menus and control screens. OSD Timeout sets the length of time the on-screen display 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 On/Off allows you to turn the On-Screen Display background On or Off.
Hot Keys for Function Controls Buttons: [Up] + [Down] arrows [Volume-] + [Volume+] [1] + [2] [1] + [Up] + [Down] [1] + [Down] (hold for 10 seconds) [1] + [Up] (hold for 10 seconds) [Up] + [Down] + [Power On] with signal (Hold for 3 seconds. Release “Power” button first and then “Up” & ”Down” buttons.) [Up] + [Down] + [Power On] Without signal (Hold for 3 seconds. Release “Power” button first and then “Up” & ”Down” buttons.
4. Circuit Description 1. Power supply (DC/DC Converter) The AP1501 is monolithic IC designed for M/B DC/DC converter, and owns the ability of driving a 3A load without any additional transistor component. The AP1501 operates at a switching frequency of 150KHz and thus allows smaller-sized filter components than what would be needed with lower frequency switch regulator.
2. Flash Memory The Pm39LV010R is a 1 Megabit, 3.3 Volt-only Flash Memory organized as 131,072 bytes of 8 bits each. This device is designed to use a 3.0 Volt to 3.6 Volt power supply to perform in-system programming. The 1 Megabit memory array is divided into thirty-two uniform blocks of 4 Kbytes each for data and/or code storage. The block architecture allows users to flexibly make chip erase or block erase operation.
gm5110/5120 System Design Example 4. LVDS (THC63LVDM83A) The THC63LVDM83A transmitter converts 28 bits of CMOS/TTL data into LVDS (Low Voltage Differential Signaling) data stream. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. The HC63LVDM83A can be programmed for rising edge or falling edge clocks through a dedicated pin. The THC63LVDF84A receiver converts the LVDS data streams back into 28 bits of CMOS/TTL data with falling edge clock.
5. Adjusting Procedure 1. Function Test 1.1 Product - 17” LCD Monitor 1.2 Test Equipment - Color Video Signal & Pattern (or PC with SXGA resolution and a sound card) 1.3 Test Condition Before function test and alignment, each LCD Monitor should be run-in and warmed up for at least 30 minutes with the following conditions: (a) In room temperature, (b) With full-white screen, RGB, and Black (c) With cycled display modes, 640*480 (H=43.27KHz, V=85Hz) 800*600 (H=53.7KHz, V=85Hz) 1024*768 (H=68.
16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 832 x 624 @ 75Hz, 49.7KHz 1024 x 768 @ 60Hz, 48.4KHz 1024 x 768 @ 70Hz, 56.5KHz 1024 x 768 @ 72Hz, 58.1KHz 1024 x 768 @ 75Hz, 60.0KHz 1024 x 768 @ 85Hz, 68.67KHz 1152 x 864 @ 75Hz, 67.5KHz 1152 x 870 @ 75Hz, 68.7KHz 1280 x 1024 @ 60Hz, 63.4KHz 1280 x 1024 @ 75Hz, 79.97KHz 1280x 720 @ 60Hz, 45KHz (HDTV) 832 x 624 @ 75Hz, 49.7KHz 1024 x 768 @ 60Hz, 48.4KHz 1024 x 768 @ 70Hz, 56.5KHz 1024 x 768 @ 72Hz, 58.1KHz 1024 x 768 @ 75Hz, 60.0KHz 1024 x 768 @ 85Hz, 68.
Horizontal & Vertical Thickness Pattern (Figure 3) R. Color Pattern (Figure 4) G. Color Pattern (Figure5) B.
Black-White Pattern (Figure 9) 1.5 Function Test and Alignment Procedure 1.5.1 All Modes Reset You should do “All Mode Reset” (Refer to Chapter III-3. Hot Keys for Function Controls) first. This action will allow you to erase all end-user’s settings and restore the factory defaults. 1.5.2 Auto Image Adjust Please select and enter “Auto Image Adjust” function on Main Menu to see if it is workable. The “Auto Image Adjust” function is aimed to offer a better screen quality by built-in ASIC.
1.5.5 Fine Tune and Sharpness Test Signal: 1280*1024@60Hz Test Pattern: Line Moire Pattern - Check and see if the image has noise and focus performs well. Eliminate visual line bar. - If not, readjust by the following steps: (a) Select and enter “Fine Tune” function on “Manual Image Adjust” to adjust the image to eliminate visual wavy noise. (b) Then, select and enter “Sharpness” function to adjust the clarity and focus of the screen image. 1.5.
1.5.10 Dead Pixel and Line Test Signal: 1280*1024@60Hz Test Pattern: Dark and White Screen Pattern - Check and see if there are dead pixels on LCD panel with shadow gauge and filter film. - The total numbers and distance of dead pixels should be compliant with the spec. 1.5.11 Mura Test Pattern: White, RGB, Black, & Grey Test Tool: 8% ND Filter - Check if the Mura can pass 8% ND Filter. 1.5.
1.5.14 All Modes Reset After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do "All Mode Reset” again. 1.5.15 Power Off Monitor Turn off the monitor by pressing “Power” button. 2. Firmware Upgrade Procedure When you receive the returned monitor, please check whether the firmware version is the latest. If not, please do the following procedures to upgrade it to the latest version. 2.
Printer Port VG712S PC Power Adapter for Fixture (P/N: 47.58201.001) Fixture LPT Cable (P/N: 42.59906.001) VGA Cable (P/N: 42.59901.003) 2.2 Setup Procedure 2.2.1 Connect P2 of Fixture with printer port of PC by LPT Cable. 2.2.2 Connect P1 of Fixture with VG712 Monitor by VGA Cable. 2.2.3 Plug Power Adapter to Fixture. 2.2.4 Connect Power Cord to VG712 Monitor. 2.2.5 Connect PC to the additional monitor.
2.2.6 Install GProbe Program by selecting and clicking Gprobe icon. Press “Yes” or “Next” buttons until the installation is complete.
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2.3 Firmware Upgrade Procedure Step 1. Let VG712 enter Burn In Mode. (Refer to Chapter III-3. Hot Keys for Function Controls). Step 2. Save these three files, and <712AV_V2_65.bin> in a hard disk (better in a root directory, e.g. C:\ or D:\ ). Step 3. Open file. Key in the path where you save the driver and firmware <712AV_V2_65.bin >.
Step 4. Execute Gprobe program. Step 5. Click Connection Setup icon. Select Protocol: DDC 2Bi3, Port: LPT1 (0x378), Speed: 70000.
Step 6. Before executing the firmware program, please test the connection between the monitor and fixtures. Key in “test” after “Gprobe,” and then press “Enter.” If the test result shows “passed,” it means the connection is well. has problems. If not (failed), it means the connection Then you need to check the setup procedure or reboot the PC, or simply use another PC to do the firmware upgrade.
Step 7. Key in “batch C:\VG712\bdisp.txt” after “Gprobe:”, and then press “Enter” key to begin programming. Step 8.
Step 9. Unplug and replug power cord of VG712 and then enter “Burn In Mode” (Refer to Chapter III-3. Hot Keys for Function Controls). Check if the version of BIOS is correct. Step 10. At last, do “All Mode Reset.
Troubleshooting: 1. If the firmware upgrade fails at the last step, don’t unplug the power cord of the monitor. Just try the upgrade procedure again. (a) If there is error to execute the command at or before line10 in the “bdisp.txt” batch file (for instance, the message “Error executing batch file at line 4” shows up in the Gprobe program (see the following picture)), please try to upgrade the firmware again. Test failed. Test failed. Test failed. Test failed. Test failed. Test failed.
Test passed. Test passed. Test passed. Erasing FLASH... Done. Writing FLASH... Writing FLASH... FAILED. Error executing batch file at line 16. Execution time: 9.
Copy the error line of the “bdisp.txt” batch file to “Gprobe:>” 2. If the firmware upgrade still fails, reboot the PC, or simply use another PC to upgrade. 3. If the above procedures don’t work, unplug and re-plug the power cord of VG712. Then try to upgrade the firmware again if VG712 can be powered on. the main board is out of work. If VG712 cannot be turned on, that means the flash memory of You then have to replace the main board. 3. DDC Key In Procedure Note: 1.
- PC (Personal Computer) with Win 98 - Power Adapter (P/N: 47.56001.501) *1 for Fixture - DDC Key In Program - One additional monitor for checking the program execution JP3 must be closed COM1: to RS232 Cable PC RS-232 Cable (P/N: 42.55907.001) Barcode Reader V3 Fixture VG712S DVI-DVI Cable (P/N: 42.56108.012) Power Adapter for Fixture (P/N: 47.57702.001) VGA Cable (P/N: 42.59901.
3.2 Setup Procedure 3.2.1 Connect P2 of Fixture with VGA port of VG712 by VGA Cable. 3.2.2 Connect P3 of Fixture with DVI port of VG712 by DVI-DVI Cable. 3.2.3 Connect P1 of Fixture with COM1 of PC by RS-232 Cable. 3.2.4 Plug Power Adapter to Fixture(JP1). 3.2.5 Connect Power Cord to VG712 Monitor. 3.2.6 Connect PC to the additional monitor.
3.3 DDC Key In Procedure Step 1. Select and execute DDC Key In program. Step 2. Select “W/w - writing mode.
Step 3. Key in the serial number or use the barcode reader to scan the barcode of the monitor, and then press “Enter” key. Notice: The English of the serial number should be capital letters. Step 4. The successful picture is as follows. “The checksum values will appear after DDC is upgraded successfully in both VGA and DFP (DVI) modes.
Step 5. Let VG712 enter “Burn In Mode” (Refer to Chapter III-3. Hot Keys for Function Controls). Unplug and re-plug the power cord of the monitor. The corrective serial number will show on the screen. Step 6. Checking Method: - Execute the DDC Key In program and select “R/r - Reading mode” in Step 2. - Use the barcode reader to scan the barcode of the monitor, or manually key in the serial number. If the DDC is correct, the “Send VGA” and “Send DFP” will show “Check Pass!” message.
6. Trouble Shooting Flow Chart This chapter provides technicians and people who have an electronic background a primary description about maintaining the product. Moreover, you can get the appropriate operation to solve some complicated problems of component repairing and professional problems. 1. Equipment Needed - VG712 Monitor - Philips Screw Driver #101 and #107 - Electronic Hex Nut M5 mm - PC (Personal Computer) with SXGA resolution and sound card / Pattern Generator 2.
2.1 A. Power Circuit Troubleshooting 2.2 B.
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Notice: 1. Make sure VGA cable connected to PC directly, not via anything like “Data transfer” or “Distribution” … … After this action if Ghost image disappears, go to “Yes”; else, go to “No.” 2. Check the compatibility on the computer. If it is compatibility problem, feedback the information to ViewSonic; else, go to “No.” 2.3 C. Control Function Troubleshooting 2.4 D.
7. Recommended Spare Parts List VG712s-1 RSPL Rev 1a (Initial) Item ViewSonic P/N Ref. P/N 1 M-WR-0828-0636 42.58301.001 2 M-WR-0828-6009 42.58302.005 3 M-WR-0828-6010 42.58303.001 4 A-VC-0101-0261 42.59901.003 5 A-AU-0120-0032 42.59903.001 6 B-SB-0221-0448 44.58302.001 7 A-AD-0114-0204 47.62701.001 8 M-LCD-0826-0232 48.62701.003 9 PL-PS-0715-0994 70.62702.001 10 M-CV-0830-2564 75.62701.003 11 C-BC-0302-0540 75.62702.001 12 M-BK-0805-0020 61.61102.002 13 M-BK-0805-0021 61.62701.001 14 M-BK-0805-0022 61.
VG712s-1 BOM Rev 1a (Initial) Item 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 36 37 38 39 40 ViewSonic P/N M-LB-0813-1016 M-LB-0813-0736 M-LB-0813-0781 M-LB-0813-1018 M-MS-0808-8948 #N/A A-AD-0114-0204 M-MS-0808-8952 M-MS-0808-8116 M-MS-0808-8969 M-MS-0808-8946 M-MS-0808-8947 M-MS-0808-8882 M-MS-0808-8949 M-MS-0808-8950 M-WR-0828-0636 M-WR-0828-6009 M-WR-0828-6010 B-SB-0221-0448 M-LCD-0826-0232 E-SK-0412-0080 M-MS-0808-8797 M-MS-0808-8953 M-MS-0808-875
Item 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 ViewSonic P/N #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A E-IC-0401-2771 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A B-CB-0206-0165 #N/A #N/A #N/A #N/A #
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VG712s-1 Exploded Part List Item ViewSonic 1 M-MS-0808-8973 2 M-MS-0808-8948 3 PL-BT-0706-0149 4 B-CB-0206-0165 5 E-SK-0412-0080 6 M-SCW-0824-6756 7 M-MS-0808-8946 8 C-FP-0301-1037 9 M-LCD-0826-0232 10 M-SCW-0824-0651 11 M-BK-0805-0021 12 M-MS-0808-6287 13 M-MS-0808-8953 14 B-SB-0221-0448 15 M-SCW-0824-0651 16 B-MB-0201-2734 17 M-SCW-0824-0651 18 M-MS-0808-8750 19 M-BK-0805-0022 20 M-BK-0805-0020 21 M-SCW-0824-0651 22 M-SCW-0824-6753 23 M-SCW-0824-0651 24 M-MS-0808-8949 25 M-BK-0805-0023 26 C-BC-0302-0541 2
Packing for shipping VG712s-1 PPL Item 1 2 3 4 5 6 7 8 9 10 11 12 Confidential - Do Not Copy ViewSonic Corporation 59 VG712s Rev 1a (Initial) ViewSonic P/N P-FM-0602-0819 A-VC-0101-0261 A-AU-0120-0032 A-AD-0114-0204 M-MS-0808-9642 M-LCD-0826-0242 M-LB-0813-1044 M-LB-0813-0736 A-CD-VG712S A-PC-0106-0270 P-FM-0602-0818 P-BX-0601-0991 Reference P/N 56.62702.001 42.59901.003 42.59903.001 47.62701.001 51.62710.001 DC.62701.005 35.62701.003 35.58304.001 36.62701.003 42.57207.001 56.62701.001 55.62701.
VG712s FLASH MEMO RY A/D BUS DDC_II C DDC EEPROM LVDS DVI INPUT RA/GA/BA[0~7] PANEL TMDS DVS/DHS/DEN/DCLK ASIC LVDS Singal LG 17" RB/GB/BB[0~7] R/G/B D_SUB Confidential - Do Not Copy Pm39LV010R AUO 17" GM512 0 HS/VS VH INPUT DDC_II C DDC BLON EEPROM INVERTER EEPROM 24LC16B 60 SCL SDA VL XTAL VOLUME 14.318MH z MUT E R AUDIO 16 ohm OUTPUT Audio L 16 ohm AC (110-240V) (50-60Hz) ADAPTER +12V DPMS +12V +12VIN +5V +3.3VD +3.3VA +2.
10. Schematic Diagrams U1 AIC1084 +2.5VD +12V +5VIN 1 22uH JP3 2 C141 3 4 0.1uF C140 C3 C4 0.1uF 0.1uF 120uF/16V C5 1000uF/16V R1 R2 C7 C8 10K 10K 0.1uF 0.1uF BRI 5 6 7 8 9 0.1uF ON R5 1K 3 BRIGHT +12V C17 C9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C2 120uF/16V R114 100uF/16V 1 2 C178 C13 C14 NC/100pF NC/0.1uF NC/0.1uF C12 0.1uF 100uF/16V R4 330/1% +3.3VA HEADER 10-2.0 NC U2 XC6201 100uF/16V C179 C180 C181 C182 C183 C184 0.1uF 0.1uF 0.1uF 0.1uF 0.
DVI Connector BAV70 1 DVI-I 3 3 DVI_5V 9 10 11 12 13 14 15 16 RX1RX1+ HOT_PLUG R15 100 R16 100 R14 4.7K 4.7K 0.1u 1 2 3 4 NC NC NC GND VCC WP SCL SDA 8 7 6 5 DDCSCL1 DDCSDA1 24LC21A 25 26 27 28 29 RX0RX0+ 3 3 RXC+ RXC- 3 3 C190 C189 0.1u /NC 0.1u /NC 3 3 C40 0.1u R18 Bead 30R R127 22 C41 0.01uF RED+ 3 RED- 3 R26 +5V 75 +5V Bead 30R R128 0.1u C195 0.1u R124 56 R20 22 C42 C43 R25 0.1u 75 R129 R125 Bead 30R 56 R22 22 C44 0.01uF C45 0.
3.3V_DVDD R45 DCLK C74 0.1uF 0.1uF 141 146 150 173 181 187 193 196 164 168 172 160 3.3V_AVDD 3.3V_AVDD C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 100pF 100pF on pin-196 100uF/16V 175 178 184 190 197 198 157 158 161 165 169 149 145 140 2.5V_VDD C90 100uF/16V C91 C92 C93 C94 C95 C96 C97 C98 C99 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 3.3V_AVDD 2.5V_AVDD 3.
U12 AN7522 +5V C197 0.1u 1 2 3 4 5 6 7 8 9 10 11 12 +12V L16 22uH VDO_PWR C170 C122 C123 1000uF/16V 0.01uF 1000uF/16V JP1 0 OUT_R+ L15 OUT _R- L17 OUT_L + L18 OUT_L- L19 R75 3 JP9 1 2 3 4 5 AAIN R1 AAINL1 C119 L20 BEAD-600 R7 8 7.87K 1% L21 BEAD-600 R7 9 7.87K 1% C120 C164 100pF /NC 100pF /NC AUGN D AUGN D R96 R97 R105 0.01uF 1 2 3 4 4 HE ADER 1K VOL ADO_CTRL ADORI N C115 1uF ADOLIN C116 1uF R81 R82 2.2K 2.2K 0.
3 EG[0..7] 3 ER[0..7] 100X4 EB[0..7] ER[0..7] DRO7 DRO6 DRO5 DRO4 8 7 6 5 1 2 3 4 NC OR1 OR0 OR7 OR6 1 2 3 4 NC 1 2 3 4 DGE7 DGE6 DGE5 DGE4 8 7 6 5 R-PACK4 RP9 DBO3 DBO2 DBO1 DBO0 8 7 6 5 OR3 OR2 OR1 OR0 DBE[0..7] DRO[0..7] 6 DGO[0..7] 6 DBO[0..7] 6 DRE[0..7] 6 DGE[0..7] 6 DBE[0..7] 6 NC R-PACK4 RP8 1 2 3 4 DBO[0..7] DGE[0..7] CP3 EG1 EG0 EG7 EG6 DGO[0..7] DRE[0..
+3.3VL 3 3 3 3 DHS DVS DEN For Fujitst Panel select Lvds mappin g R98 0 R99 NC C165 C166 100pF 100pF DCLKA DCLK +3.3VL DCLKB +3.3VD R83 L22 +3.3VL R84 NC R85 DRO[0..7] 5 DGO[0..7] 5 DBO[0..7] 5 DRE[0..7] 5 DGE[0..7] 5 DBE[0..7] C126 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 DRE7 DRE5 DGE0 0.1uF DGE1 DGE2 DGE6 +3.3VL C127 DGE7 DGE3 DGE4 0.1uF DGE5 DBE0 DBE6 +3.3VL C129 DBE7 DBE1 DBE2 0.1uF C131 10K U13 0R +3.
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*Readers Response* Dear Readers: Thank you in advance for your feedback on our Service Manual,which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corporation. Assessment A.What do you think about the content after reading VG712s Service Manual? U nit Ex cellent Fair G ood Bad 1. Precautions And Safety Notices 2. Specification 3. Front Panel Function Control Description 4. Circuit Description 5.
