Service Manual ViewSonic VA1912W/Wb Model No. VS10866 19” Color TFT LCD Display (VA1912W/Wb_SM Rev. 1a Oct.
I. Copyright Copyright © 2005 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 9 4. Circuit Description 15 5. Adjustment Procedure 17 6. Troubleshooting Flow Chart 40 7. Recommended Spare Parts List 48 8. Exploded Diagram and Exploded Parts List 53 55 9. Block Diagram 10. 56 Schematic Diagrams 66 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 a high quality, safety approved AC/DC power cord. (5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.
(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or bend the TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be damaged. (12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local ordinances or regulations for disposal.
Correct methods : Only touch the metal-frame of the panel or the front cover of the monitor. Do not touch the surface of the polarizer . Incorrect Methods : 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 panel. That may cause “ MURA“. Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects .
2. Specification 2.1 INTRODUCTION TFTLCD PANEL Input Signal Sync Compatibility Compatibility Power Voltage Power Consumption Audio Ergonomics OSD Control FEATURES Size Luminance (Typ, cd/㎡) Contrast Ratio (Typ) Colors ( 6 bit + 2 bit FRC) Response Time (Typ) Viewing Angle (H/V) Recommend resolution Analog (75ohms, 0.7/1.
2.3 VIDEO INTERFACE Analog Input Connector Digital Input Connector Default Input Connector Video Cable Strain Relief Video Cable Connector DB-15 Pin out Video Signals Video Impedance Maximum PC Video Signal Maximum Mac Video Signal Sync Signals DDC 2B Sync Compatibility Video Compatibility Resolution Compatibility Exclusions DB-15 (Analog), refer the appendix A N/A Defaults to the first detected input Equal to twice the weight of the monitor for five minutes Compliant DDC 2B 1. Video RGB (Analog) 2.
Separate 3-prong NEMA 5-15P type plug. Length = 1.8m. Connects to display. Color = Black Schuko CEE7-7 type plug. Length = 1.8m, Connects to display. Color = Black Separate 3-prong type plug. Length = 1.8m. Connects to display. Color = Black Separate 2-prong NEMA 1-15P type plug. Length = 1.8m. Connects to display.
2.6 FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls Power Switch (Front Head) Power LED (Front Head) Front Panel Controls (Head) [;X] [ 1 ] [▼] [▲] [ 2 ] [ ] Reaction Time Power Control, soft Power Switch. Green – ON Orange – Active Off Dark = Soft Power Switch OFF [ ] Power [ 1 ] Button 1 [ 2 ] Button 2 [▲] Up arrow button [▼] Down arrow button [; X] AUDIO MUTE ON/OFF Note: Power Button, Button 1 and Button 2 and Mute Button must be one-shot logic operation. (i.e.
Memory Recall Actions Memory Recall action on the analog and digital mode as below 1. Set the factory defaults as shown in Section 4-8 2. Clean all the mode setting buffer 3. Execute Auto Image Adjust Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or Input Priority Resolution Notice Actions 1. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec 2.
3. Front Panel Function Control Description Adjusting the Screen Image Use the buttons on the front control panel to display and adjust the OSD controls which display on the screen. The OSD controls are explained at the top of the next page and are defined 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 Contrast adjustment control screen.
The command line at the bottom of the control screen tells what to do next from this screen. You can toggle between control screens, adjust the selected option, or exit the screen. . (The black border around the edge of the screen should barely touch the illuminated “active area” of the LCD display.
Main Menu Controls Adjust the menu items shown below by using the up S and down T 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 connected to the VA1912w/VA1912wb.
Control Explanation 5000K-Adds blue and green to the screen image for a darker color. User Color Individual adjustments for red (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, colors return to the 6500K factory preset.
Control Explanation 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. Resolution Notice allows the user to enable or disable this notice.
Control Explanation 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 factory Preset Timing Mode listed in the Specifications of this manual.
4. Circuit Description 1. LCD Integrated Power System (LIPS) The LCD Integrated Power System (LIPS) is a power module combined adaptor and CCFL inverter. It accepts 100~240Vac and supply 12Vdc and 5Vdc to main board and TFT-LCD panel. About CCFL dimming and on/off function is controlled by micro-controller. 2. Scaler The TSU56AK is total solution graphics processing IC for LCD monitors with panel resolutions up to SXGA.
3. Timing Controller The CM2706B is a timing controller LSI for Office Application. It receives LVDS RGB data and synchronizes signal from external video graphic adapter and then outputs RSDS (Reduced Swing Differential Signal) data and TTL control signals to TFT LCD drivers.
5. Adjusting Procedure A. Function Test and Alignment Procedure 1. All Modes Reset You should do “All Model Reset” (Refer to Chap 3. Hot Keys for Function Controls) first. This action will allow you to erase all end-user’s settings and restore the factory defaults. 2. Auto Image Adjust The Auto Adjust is aimed to offer a best screen quality by built-in ASIC. For optimum screen quality, the user has to adjust each function manually. A.Turn the computer and LCD monitor on. B.
8 50 Gray Test Signal: 1280*1024@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: Particle, Line Defect, Power, Image Remain & Mura 10 Black Box Test Signal: 1280*1024@60Hz Test Pattern: Window standard pattern Inspection Item: Bright Dot, Line Defect & Power 11 RED Test Signal: 1280*1024@60Hz Test Pattern: Full Screen Red Inspection Item: Bright Dot, Pa
14 Gray_Scale_0-100_V256 Test Signal: 1280*1024@60Hz Test Pattern: Vertical 64 (256) Gray Scale (Right → Left，From 0 to 100% White) Inspection Item: Line Defect & Function Defect 15 Gray_Scale_0-100_H256 Test Signal: 1280*1024@60Hz Test Pattern: Horizontal 64(256) Gray Scale (Up → Down，From 0 to 100% White) Inspection Item: Line Defect & Function Defect 16 Block Window Test Signal: 1280*1024@60Hz Test Pattern: Black block at the center Inspection Item: Cross Talk & Optical Character 17 Black_Tile Test Si
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Figure 5 Figure 5 Figure 6 Figure 7 Figure 8 Confidential - Do Not Copy ViewSonic Corporation 21 VA1912W/Wb
B. BIOS update procedure BIOS Update User Guide FOR VIEWSONIC BIOS Update Flow for Genesis 1.1 Program： 1. 1. 1. Software a. Please download the file “ M-Star” from CMO E-Sir system. There are ISP & BIOS two files, kindly see as below. a) ISPACK.EXE: Main program b) Ancillary .ISPACK.EXE ：Description program 1.1. 2.Hardwar •D_Sub cable（15Pin） •Point plug [24Pin] Point plug D_Sub cable OR Without to affect 1.1.3 Join VGA Cable, PC BASE, see the example picture as below.
1.2 Installation： A. Please install the programs respectively as below. B. ISP & BIOS software file to be about to produce the next. (If the file existence already, needn’t to set up. Isp.lnk C. repeat.) This system is applied to Win 95/98/NT/2000. 1.3 ISP Execution 1. Settings: Double Click Isp.exe Fig.
2. When ISP Tool executing at the first time, it is required to enter Security Data Please press , then input related information as Fig.2. 94 94 ac ca 53 For A190A2 Fig.1: ISP Tool Main Menu Key in “OK” “After 3.Select correct Micro Controller as Fig.3.
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1.4.Verification BIOS Update whether success 1. When everything is done. Please turn off the power and restart it again. Check Factory Mode and make sure it already be updated.
C. Monitor Assembly and Disassembly 1 Separate Stand Assy 1.
2 Separate Rear Cover (Rear Case Assy) Separate Bezel hooks to take Bezel and Rear Cover apart. Step 1 : Loose and remove 2 screws. Step 2 : Separate Bezel hooks to take Bezel and Rear Cover apart. Step 3 : Remove Rear Cover. Step 4 : Completed.
3 Remove Power Board 3.1 Remove Metal Cover Step 1 : Remove 2 pieces of Backlight wires. Step 2 : Loose and remove 4 screws Step 3 : Loose and remove 2 screws of power socket. Step 4 : Loose and remove 2 screws of Digital socket.
Step 5 : Loose and remove 2 screws of Analog Socket. Step 6 : Remove the Metal Cover. Step 7 : Completed. 3.2 Remove Power Board Step 1 : Remove 2 pieces of Backlight wires.
Step 2 : Loose and remove 2 screws. Step 3 : Remove Power Board. Step 4 : Completed. 4 Change New Power Board Step 1 : Insert New Power Board.
Step 2 : Fasten 2 fixed screws of Power Board. Step 3 : Insert 2 pieces of Backlight wires. Step 4 : Completed 5. Remove AD PCBA Step 1 : Remove 2 FFC from X Board.
Step 2 : Remove FFC from OSD Board. Step 3 : Loose and remove 4 screws. Step 4 : Remove AD PCBA. Step 4 : Completed.
6. Change New AD PCBA Step 1 : Place New AD PCBA. Step 2 : Fasten 4 fixed screws of AD PCBA. Step 3 : Insert 2 FFC from X Board. Step 4 : Insert FFC from OSD Board. Step 5 : Completed.
7. Remove OSD Board Step 1 : Remove FFC. Step 2 : Separate both Audio Cable. Step 3 : Take OSD Board apart. Step 4 : Completed.
8.Change New OSD Board Step 1 : Place New OSD Board. Step 2 : Insert Audio cable to connectors of New OSD Board. Step 3 : Insert FFC to OSD Board. Step 4 : Completed. 9. Add Cover to AD PCB Heatsink Step 1 : Join the cover hooks of X-PCB.
Step 2 : Fasten 2 fixed screws of Analog Socket. Step 3 : Fasten 2 fixed screws of Digital Socket. Step 4 : Fasten 2 fixed screws of Power Socket. Step 5 : Fasten 4 fixed screws. Step 6 : Insert 2 pieces of Backlight wires.
Step 7 : Completed. 10. Rear Assy Assembly Step 1 : Join the Bazel assy . Step 2 : Fasten 4 fixed screws. Step 3 : Place Rear Cover. Step 4 : Fasten 2 fixed screws.
Step 5 : Completed. 11. Stand Assy Assembly Step 1 : Place Stand Assy. Step 2 : Fasten 4 screws to fixed Stand Assy. Step 3 : Insert Cover Hinge. Step 4 : Insert Seat Assy.
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Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair stage A Display Noise Check PCBA Power on Display Abnormal AD/B Change Power/B Change Inverter/B Change Flicker CNT/B Change Beat Display Flicker Check Panel Panel Change Beat Display Shut Down Abnormal AD/B Change Display Wave Check PCBA Power/B Change CNT/B Change No Backlight Check Panel Panel Change Check Adapter Adapter Change Next Step NG B TEST Completed Confidential - Do Not Co
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair stage B Display White Out Check PCBA AD/B Change Power/B Change Booting Delay Check PCBA Inverter/B Change Brightness Even Abnormal OSD/B Change Check PCBA Power/B Change Inverter/B Change Beat Display No Backlight Check Panel Check Adapter Panel Change Adapter Change No signal AD/B Change Check PCBA R.G.
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair stage C Horizontal Line Defect Vertical Weak Line Check PCBA AD/B Change Horizontal Weak Line Vertical Band Defect Check Panel Panel Change Check PCBA AD/B Change Horizontal Band Defect Power Saving Display Abnormal AD/B Change Power/B Change Peculiar Smell Check PCBA Inverter/B Change Next Step NG TEST Completed Confidential - Do Not Copy ViewSonic Corporation 43 VA1912W/Wb
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair stage AD/B Change Power/B Change Power ON/OFF Abnormal Check PCBA No Power Check PCBA Turn Off Abnormal CNT/B Change Inverter/B Change OSD/B Change Check Wire OSD Cable Check Wire AC Power Change DC Power CNT Cable Change Check Adapter Adapter Change AD/B Change LED Display Abnormal LED Off Check PCBA Power/B Change Inverter/B Change LED Dark OSD/B Change LED Abnormal OSD Cable Change Check
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair stage Abnormal BIOS & OSD OSD Key Unavailable AD/B Change CNT/B Change OSD Can’t Input Power/B Change Check PCB Inverter/B Change OSD Can’t Read OSD/B Change OSD No Display D-sub cable Change OSD cable Change Check Wire OSD Jiggle VGA cable Change DVI cable Change OSD Display Abnormal Check BIOS BIOS Update Abnormal Loudspeaker Voice Loss AD/B Change CNT/B Change Abnormal Loud Power/B C
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair stage Other Abnormal Display Display Shut Down Check PCBA AD/B Change Power/B Change CNT/B Change Check Panel Panel Change Check PCBA Display Flicker ((tapping ) AD/B Change CNT/B Change Check Panel Check PCB DVI Signal Display Abnormal Check EDID Code TV Function Display Abnormal Panel Change AD/B Change EDID Update Check PCBA TV /B Change Check Wire AV Cable Change Check Controller
Trouble Shooting Analysis Check the information in this section to see if the problems can be solved before requesting repair. Note：The consumers are only allowed to solve the problems described as below. Any unauthorized product modification, or failure to follow instructions supplied with the product will end the warranty immediately. No image Make sure power button is ON. Check whether the LCD monitor and computer power cords are plugged and whether there is a supply of power.
7. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (VA1912w-1) ViewSonic Model Number: VS10866-1W Rev: 1a Serial No. Prefix: PXD Item 1 Accessories: Description Adapter, Lips With Audio, DAC-12M030 A, Ver:0F, 5 V/3 A, 12 V/0.7 A, L TYPE, 5 mA, 2470 V ECR/ECN ViewSonic P/N Power Code, UL, SVT#18/3C, 75℃, LP-30B+LS-13, L=1830+/-50mm, Black, Linetek, 18AWG, No Bag 2 Power Cord, CCC, 300/500V, 0.
RECOMMENDED SPARE PARTS LIST (VA1912wb-1) ViewSonic Model Number: VS10866-1W Rev: 1a Serial No. Prefix: PW6 Item Accessories: 1 2 3 4 5 6 7 Board Assembly: 8 9 Cabinets: 10 Description Adapter, Lips With Audio, DAC-12M030 A, Ver:0F, 5 V/3 A, 12 V/0.7 A, L TYPE, 5 mA, 2470 V Power Code, UL, SVT#18/3C, 75℃, LP30B+LS-13, L=1830+/-50mm, Black, Linetek, 18AWG, No Bag Power Cord, CCC, 300/500V, 0.
BOM LIST (VA1912w-1 & VA1912wb-1) ViewSonic Model Number: VS10866-1W Rev: 1a Serial No. Prefix: PXD / PW6 Item ViewSonic P/N 1 #N/A Ref.
Item ViewSonic P/N Ref.
Item ViewSonic P/N Ref.
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EXPLODED PARTS LIST (VA1912w-1 & VA1912wb-1) ViewSonic Model Number: VS10866-1W Rev: 1a Serial No. Prefix: PXD / PW6 Item 1 2 3 4 ViewSonic P/N #N/A #N/A #N/A HW-00000555 5 Ref.
9. Block Diagram OSD Key Pad Audio Out Speaker Audio 3.
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V33C V33C L13 VPO HCB2012KF-420T40/RoHS 1 2 C60 0603/100n/16V/7/PbF C59 1206/10u/16V/X/PbF C61 0603/100n/16V/7/PbF C63 0603/100n/16V/7/PbF C62 0603/100n/16V/7/PbF C65 0603/100n/16V/7/PbF C64 0603/100n/16V/7/PbF C66 0603/100n/16V/7/PbF GND V18C V18C L14 HCB2012KF-420T40/RoHS 1 2 VDD VPLLVDVI VDPLL VPO C70 0603/100n/16V/7/PbF C69 0603/100n/16V/7/PbF C68 0603/100n/16V/7/PbF C67 1206/10u/16V/X/PbF VAD C71 0603/100n/16V/7/PbF VDD CSZ SCL SDA HWRESET R90 R91 0603/1K/5%/RoHS C78 0603/10
0603/1K/5%/RoHS V33C R16 V33C V33C R18 0603/10K/5%/RoHS V5A1 3 R17 1 2 Do Not Stuff 1 VIN_12V DoVIN_12V1 Not Stuff 1 TP 0603/4.7K/5%/RoHS R19 Q1 2N7002/RoHS INV_ADJ 3 C12 V5A C13 0603/4.7K/5%/RoHS Do Not Stuff Q2 2N7002/RoHS R20 2 GND Do Not Stuff INV_ON/OFF1 0603/4.7K/5%/RoHS 1 INV_ON/OFF1 INV_ON/OFF R21 Do Not Stuff TP INV_ADJ1 Do Not Stuff INV_ADJ 1 V5A LP1 TP Do Not Stuff GND V5A FBMJ2125HS420/PbF CP3 CP2 + TP CP1 1206/10u/16V/5/RoHS UWT1E101MCL1GS/RoHS 1210/4.
V33T1 V33T V5A C38 0603/100n/25V/7/RoHS LV470M025E055R/RoHS VIN GND 0603/1n/50V/7/RoHS C39 AP2305GN/RoHS 3 3 LM1117MPX-3.3/RoHS 2 4 V33T VOUT VOUT + 1 C37 + U4 1 2 V5A 1 Q16 C40 0603/100n/25V/7/RoHS R86 0603/4.7K/5%/RoHS C41 LV470M025E055R/RoHS GND R87 0603/1K/5%/RoHS Q17 2N7002/RoHS 1 GND 2 PANEL_ON/OFF 3 GND R88 0603/100K/5%/RoHS C42 0603/100n/25V/7/RoHS GND GND V33A1 Do Not Stuff L9 U5 FBMJ2125HS420/PbF 3 VIN LM1117MPX-3.
R97 RXOC+ RXOC- RXEC+ RXEC- R98 0603/100R/1%/RoHS 0603/100R/1%/RoHS BB2P BB2N BB1P BB1N BB0P BB0N STV1 BCKP BCKN CPV1 R96 R99 RXO0- R101 RXE0+ CPV RXE0- OE1 R102 0603/100R/1%/RoHS 0603/100R/1%/RoHS R103 RXE1- R104 0603/100R/1%/RoHS R105 RXO2+ RXO2- R107 RXE2+ GND RXE1+ FSTHI 0603/100R/1%/RoHS V33T OEPW1 GND R114 Do Not Stuff RXO0RXO0+ RXO1RXO1+ Q18 Do Not Stuff R115 Do Not Stuff 3 RESET_N C97 Do Not Stuff RXO2RXO2+ RXOCRXOC+ RXO3RXO3+ 2 1 GND pin103 pin118 VCC_L
VCPU 5 6 7 8 5 6 7 8 4 3 2 1 RP1 0603*4/10K/5%/RoHS 4 3 2 1 VCPU RP2 0603*4/10K/5%/RoHS Bead Array LP8,LP9,LP11=>modified RoHs CN3 MENU KEY_DOWN KEY_UP SOURCE_SELECT AUTO_ADJ LP6 1 2 3 4 LP7 1 2 3 4 LED_O LED_B PWR_SW 8 BK32164M121 7 6 5 8 BK32164M121 7 6 5 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 L4 AUDIOR- 1 2 MPZ1608S221/RoHS 4 3 2 1 4 3 2 1 L5 VCPU AUDIOR+ VCPU CP7 0603*4/100p/50V/PbF CP8 0603*4/100p/50V/PbF 2 1 L6 5 6 7 8 Do Not Stuff R78 5 6 7 8 R77 R76 0603/10K/5%/RoHS AU
VCPU R29 0603/10K/5%/RoHS R31 R30 Do Not Stuff BZT52C3V6S-F/RoHS C19 ZDP1 1206/10u/16V/X/PbF C20 0603/22p/50V/N/RoHS 1 R38 R39 CLK_DDC DAT_DDC C22 GND 0603/22p/50V/N/RoHS 0603/0R/5%/RoHS 0603/0R/5%/RoHS SDA1 SCL1 C24 C23 Do Not Stuff GND VCPU X1 10 RST 11 13 14 16 17 HSCL1/P3.0/RXDO HSDA1/P3.1/TXDO P3.2/INT0 ISDA/P3.4/T0 ISCL/P3.5/T1 18 23 19 1 12 33 34 35 8 9 P7.6 NC P7.7/CLKO2 NC NC NC NC NC P5.6/HSCL2 P5.7/HSDA2 C25 R49 MTV512MV64/RoHS 1 2 DSUB_DET P6.7 DA1/P5.1 DA2/P5.
VCC1 VCC 1 XAO 1 CN2 XAO1 FSTH FB2P FB2N FB1P FB1N FB0P FB0N STV1 STV 1 CPV 1 OE 1 FG2P FG2N FG1P FG1N FG0P FG0N CPV1 OE1 FCKP FCKN STB POL STB1 STB 1 POL 1 FR2P FR2N FR1P FR1N FR0P FR0N POL1 V33P OE CPV STV GND PANEL_ON/OFF1 L8 PANEL_ON/OFF 1 VCC 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 IL-FHR-F36S-HF/RoHS DCDC_ON/OFF1 DCDC_ON/OFF XAO FBMJ2125HS420/PbF V33P 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18
V5A_ESD V5A_ESD CON1 DCC2_CLK Do Not Stuff R2 Do Not Stuff DCC2_DAT DVI_5V 2 L1 1 DVI_5V DVI_5V BK1608LL121/RoHS R3 V5A 0603/10K/5%/RoHS 2 1 2 V5A 2 For MTV512 D4 Do Not Stuff 1 D1 D2 D3 UDZSF-5.6B/PbF U1 1 2 3 4 UDZSF-5.6B/PbF UDZSF-5.
R144 Do Not Stuff 11 DDC_DAT 0603/0R/5%/RoHS C117 0603/0R/5%/RoHS C118 R147 0603/68R/1%/RoHS R148 0603/0R/5%/RoHS R149 0603/68R/1%/RoHS C119 R150 1 6 2 7 3 8 4 9 5 10 12 13 14 15 R145 0603/68R/1%/RoHS R146 R152 R151 0603/75R/5%/RoHS CN6 2DS-D112-002 C121 R153 Do Not Stuff D21 3 1 D23 1 BAV99W/RoHS D22 1 D24 BAV99W/RoHS Do Not Stuff Do Not Stuff V5A_ESD 2 2 C127 0603/100n/25V/X/RoHS GND 2 C128 0603/100n/25V/X/RoHS SOG R155 0603/51R/1%/RoHS C124 0603/47n/16V/7/RoHS R156 0603/51R/
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* Reader’s 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 of this Service Manual? Unit Excellent Good Fair Bad Excellent Good Fair Bad 1. Precautions and Safety Notices 2. Specification 3. Front Panel Function Control Description 4. Circuit Description 5.
