Service Manual ViewSonic VA521 VE510b/s-21 Model No. VLCDS27996-1W Model No. VLCDS27996-2W/-3W 15” Color TFT LCD Display (VA521/VE510b/s-2_SM_819_1c Rev. 1c Oct.
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 2 3. Front Panel Function Control Description 5 4. Circuit Description 10 5. Adjusting Procedure 16 6. Trouble Shooting Flow Chart 17 7. Recommended Spare Parts List 19 8. Exploded Diagram And Spare Parts List 35 9. Block Diagram 44 10. Schematic Diagrams 45 11.
1. Precautions and Safety Notices 1.1 SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground principle that a user's safety comes first. However, improper use or installation may cause damage to the monitor as well as to the user. Carefully go over the following WARNINGS before installing and keep this guide handy. WARNINGS . . . . . . . . This monitor should be operated only at the correct power sources indicated on the label on the rear end of the monitor.
2. Specification 2.1. PRODUCT SPECIFICATION LCD Panel 15.0" TFT Power Management Energy Star compliant VESA DPMS compatible < 1W Displayable Resolution XGA 1024× 768 (max.) Pixel Dimension 0.297× 0.297mm LCD Display Color 16.2M Color Max. (8bit) Viewing Angle CR≧10 Horizontal: -60°~+60° Vertical: -55°~+45° Tilt +20°~ 0° Contrast Ratio 300: 1 (min.) 400 : 1 (typ.) Brightness 200 cd/m2 (min.) 250 cd/m2 (typ.) Response Time Tr: 9 ms Tf: 16ms (typ.) Active Display Area 304.1mm× 228.
ITEM 6 7 8 10 800×600@60Hz 800×600@72Hz TIMING 640×480@85Hz Pixel Rate 36.000MHz 28.322MHz 36.000MHz 40.000MHz 50.000MHz H TOTAL 22.111us 31.778us 28.444us 26.400us 20.800us H DISPLAY 17.778us 25.422us 22.222us 20.000us 16.000us H B-Porch 2.222us 1.907us 3.556us 2.200us 1.280us H Width 1.556us 3.813us 2.000us 3.200us 2.400us H Border 0.000us 0.318us 0.000us 0.000us 0.000us V TOTAL 11.764ms 14.268ms 17.778ms 16.579ms 13.853ms V DISPLAY 11.093ms 12.
H B-Porch 1.869us 2.235us H Width 1.765us 1.219us H Border 0.000us 0.000us V TOTAL 13.889ms 13.328ms V DISPLAY 13.234ms 12.795ms V B-Porch 0.500ms 0.466ms Vs Width 0.103ms 0.050ms V Border 0.000ms 0.000ms H/V Sync -/- +/+ Interlace No. No. 2.3. D-SUB CONNECTOR D-SUB 15 PIN CONNECTOR 1 2 6 11 3 7 12 4 8 13 5 9 14 1.Red Video 2.Green Video 3.Blue Video 4.NC 5.GND 10 15 6.Red GND 7.Green GND 8.Blue GND 9. +5V for DDC 10.GND 11.NC 12.SDA 13.H-sync 14.V-sync 15.
3. Front Panel Function Control Description Main Menu with OnView controls Front Control Panel Power light Displays, saves changes to, and exits the Main Menu. Scroll through menu options and adjust the displayed control. Selects a highlighted control. Also, displays the control screen for the selected control and toggles between control pairs.
Do the following to adjust the screen image: . To display the Main Menu, press button [1]. Main Menu AUTO SET Auto Adjust Contrast/Brightness Color Adjust i Information Image Adjust ? Setup Menu Memory Recall 1:EXIT . . 2:SELECT NOTE: All OnView menus and adjustment screens disappear automatically after about 15 seconds. This time period is adjustable through the Setup menu and the OSD timeout control described on page 11.
Main Menu Controls Adjust the menu items shown below by using the up I and down J buttons. Contro Explanation Auto Adjust automatically sizes, centers, and fine tunes the video signal to eliminate waviness and distortion. Press the [2] button to obtain a sharper image. NOTE: Auto Adjust works with most common video cards. If this function does not work on your LCD display, then lower the video refresh rate to 60 Hz and set the resolution to its pre-set value.
VESA 1024 x 768 @ 60 Hz (recommended) means that the resolution is 1024 x 768 and the refresh rate is 60 Hertz. Information H. Frequency: 48.60 KHz V. Frequency: 60.00 Hz Pixel Clock: 65.00 MHz Resolution: 1024 x 768 Model Number: VLCDS23585-2W Serial No: www.viewsonic.com 1:EXIT Image Adjust Image Adjust H./V. Position H. Size Fine Tune Sharpness 1:EXIT 2:SELECT The Image Adjust controls are explained below: H./V. Position adjusts horizontal and vertical position of the screen image.
Language Select allows you to choose the language used in the menus and control screens. Resolution Notice advises the optimal resolution to use. Resolution Notice For best picture quality change the resolution to 1024 x 768 1:EXIT OSD 2:DISABLE OSD Position allows you to move the on-screen display menus and control screens. OSD Timeout sets the length of time an on-screen display screen is displayed.
4. Circuit Description (VA521/VE510s-2/VE510b-2 Realtek Scaler) A. AC-DC CONVERTER The power supply with a high-integrated green-mode PWM controller provides several features to enhance the performance of power flyback converters. I801 is a PWM controller and provides many protection functions. I802 is a photo couple to transfer the feedback signal from the second side which I803 detected both of the output DC voltage on 3.3V and 12V.
■ PLL:8 pins Name XO XI DPLL GND DPLL VDD APLL VDD PLL TEST1 PLL TEST2 I/O AI AO AG AP AP AIO AIO Pin No 1 2 3 4 5 6 7 APLL GND AG 8 ■ Control Interface: 7 pins Name I/O SDIO [0] IO SDIO [1] / TCON [4] / BBLU [0] SDIO [2] / TCON [3] / BBLU [1] SDIO [3] / PWM2 / TCON [2] SCLK SCSB RESET Pin No 54 Description Reference clock output Reference clock input Ground for digital PLL Power for digital PLL Power for multi-phase PLL Test Pin 1 / IRQ# Test Pin 2/Power-on-latch for crystal out Frequency Ground
73 BG2P BG2P TODP 74 BG2N BG2N TODN 75 BG1P BG1P TOCLKP 76 BG1N BG1N TOCLKN 77 BR3P BR3P TOCP 78 BR3N BR3N TOCN 79 BR2P BR2P TOBP 80 BR2N BR2N TOBP 81 BR1P BR1P TOAP 82 BR1N BR1N TOAP 85 AB3P NC TEDP 86 AB3N NC TEDN 87 AB2P NC TECLKP 88 AB2N 89 AB1P 90 BB1N 91 ACLKP 92 ACLKN 93 AG3P 94 99 100 101 102 AG3N AG2P NC NC NC NC NC NC NC TCON [11] TECLKN TECP TECN TEBP TEBN TEAP TEAN NC AG2N TCON [10] NC AG1P TCON [9] NC AG1N TCON [8] NC
NC ARED [2] ARED [2] COUT ARED [0] PWM2 / COUT / TCON [12] TCON [11] (1), (7), (8) V [1] BRED [1] TCON [10] (1), (7), (8) V [2] V [2] BRED [0] TCON [9] (1), (7), (8) V [3] V [3] AGRN [1] TCON [8] (1), (7), (8) V [4] V [4] AGRN [0] TCON [7] (1), (7), (8) V [5] V [5] DHS DHS DHS (1), (7), (8) V [6] V [6] DVS DVS DVS (1), (7), (8) V [7] V [7] DENA DENA DENA (1), (7), (8) VCLK VCLK DCLK DCLK DCLK (1), (7), (8) 108 AR1N NC 113 PWM2 / COUT / TCON [12] TCON [11
PWM1 / TMDS_TST AIO 9 PWM1 / DDCSDA / TCON [1] / BBLU [0] PWM1 / TCON [7] IO 47 IO 125 PWM0 / REFCLK IO 112 I/O I Pin No 46 IO 47 I IO 126 125 ■ DDC Channel:4 pins Name DDCSCL/TCON [0] / BBLU [1] DDCSDA/TCON [1] / PWM1/BBLU [0] TCON [5] TCON [7]/PWM1 ■ Power & Ground:22 pins Name I/O 3.3V Power P 3.3V Ground G 3.3V Power P 3.3V Ground G 2.5V Power P 2.
C. MTV312M64 The MTV312M micro-controller is an 8051 CPU core embedded device especially tailored for CRT/LCD Monitor applications. It includes an 8051 CPU core, 1024-byte SRAM, 14 built-in PWM DACs, VESA DDC interface, 4-channel A/D converter, and a 64K-byte internal program Flash-ROM. A “CMOS output pin” means it can sink and drive at least 4mA current. It is not recommended to use such pin as input function. A “open drain pin” means it can sink at least 4mA current but only drive 10~20uA to VDD.
5. Adjusting Procedure 5.1. 5.2. 5.3. ADJUSTMENT CONDITIONS AND PRECAUTIONS 1. Approximately 30 minutes should be allowed for warm up before proceeding. 2. Adjustments should be undertaken only on those necessary elements since most of them have been carefully preset at the factory. 3. ESD protection is needed before adjustment. MAIN ADJUSTMENTS NO. FUNCTION 1. V-com Voltage 2. Eeprom Initial 3.
6. Trouble Shooting Flow Chart (VA521/VE510s-2/VE510b-2) 6.1. NO POWER or BACKLIGHT NO POWER With power but power saving mode more than 1 Watts Yes CHECK C805 with voltage more than 150volts or not No Check Q903,I804 without connecting main board, with main board more than 1Watts check main board. Yes 3.3V on P801 pin5,6 to GND 12V on P802 pin3 to GND No Yes Check main board backlight_on signal No Yes NO BACKLIGHT. Check P802 pin2 with 3.
6.2. NO DISPLAY (Realtek Scaler) No Display Check Power region Dark Check LED Color Amber Check IO cable is connect OK ? Yes Amber & Green No Check X101 Crystal 12MHz is working? Green Check I/P signal is in pwr saving state? Check I104 is OK ? Yes Refer to NO POWER trouble shoot flow char Press Power key ON/OFF is OK ? (See LED is green or dark.
7. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (VA521-1) ViewSonic Model Number: VLCDS27996 Rev: 1b Item Accessories: 1 PC Board Assembly: 2 3 4 Cabinets: 5 6 Cables: 7 Documentation: 8 9 10 11 12 13 14 15 16 17 Electronic Hardware: 18.1 18.2 19 Miscellaneous: 20 Packing Material: 21 22 23 24 Plastics: 25 26 27 28 Description POWER CORD USA WALL 1.
RECOMMENDED SPARE PARTS LIST (VE510b-2) ViewSonic Model Number: VLCDS27996 Rev: 1c Item Description 1 Accessories: POWER CORD USA WALL PC Board Assembly: PCB ASS'Y BLOCK (MAIN) 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 Cabinets: Cables: Documentation: Electronic Hardware: Miscellaneous: Packing Material: Plastics: PCB ASS'Y BLOCK (MAIN) PCB ASS'Y BLOCK (MAIN) PCB ASS'Y BLOCK (CON) PCB ASS'Y BLOCK (POWER) FRONT BEZEL CABI BACK I/O CABLE CD-OWNER GUIDE CD-OWNER GUIDE LAB
RECOMMENDED SPARE PARTS LIST (VE510s-2) ViewSonic Model Number: VLCDS27996 Rev: 1c Item Description Accessories: 1 POWER CORD PC Board Assembly: PCB ASS'Y BLOCK (MAIN) ECR/ECN USA WALL 1.
BOM LIST (VA521-1) ViewSonic Model Number: VLCDS27996 Rev: 1c Item 1 2 ViewSonic P/N M-LB-0813-0856 E-C-0404-3815 Ref. P/N 2055613379 2346410496 LABEL CAP,CHIP 85'C Description ViewSonic CONTAINER LABEL CS 0603/Y5V/50V 0.
Item 20 21 22 23 24 25 26 27 28 29 30 31 ViewSonic P/N #N/A E-D-0403-0531 PL-PD-0714-0113 E-C-0404-4224 E-C-0404-4423 #N/A E-R-0405-6604 E-R-0405-6411 #N/A #N/A E-R-0405-5989 E-D-0403-1105 Ref.
Item 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 ViewSonic P/N E-IC-0450-0041 E-IC-0401-2269 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A E-R-0405-7000 #N/A #N/A #N/A #N/A M-MS-0808-6355 #N/A E-X-0415-0119 E-X-0415-0112 M-MS-0808-6352 #N/A M-WR-0828-6626 E-C-0404-5329 E-C-0404-4212 #N/A #N/A #N/A #N/A
Item 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 ViewSonic P/N #N/A #N/A #N/A #N/A #N/A #N/A E-PC-0411-0083 #N/A #N/A #N/A M-MS-0808-9226 E-TH-0416-0042 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A C-FP-0301-0966 M-MS-0808-9397 PL-FK-0709-0151 M-MS-0808-9213 M-MS-0808-9214 M-LCD-0826-0223 M-MS-0808-9212 M-MS-0808-9219
BOM LIST (VE510b-2) ViewSonic Model Number: VLCDS27996 Rev: 1a Description ViewSonic CONTAINER LABEL CS 0603/Y5V/50V 0.1u Z T Item 1 2 ViewSonic P/N M-LB-0813-0856 E-C-0404-3815 Ref. P/N 2055613379 2346410496 LABEL CAP,CHIP 85'C 3 E-R-0405-6409 2253210196 RES,CHIP 1/10W RC 0603 1/10W 100 ohm J T R103 R106 R108 R10 R112 R114 R116 R120 R132 R134 R135 R144 R145 R150 R151 R152 R153 R154 R155 R156 R176 R177 R186 4 E-D-0403-1667 2364600196 DIODE,SWITCH SMD LL4148 3.5X1.
Description CS 0603/X7R/25V 0.047u K T Item 14 ViewSonic P/N #N/A Ref. P/N 2346247396 CAP,CHIP 125'C 15 M-WR-0828-0478 2428106100 JUMPER 0.6f 10.00MM 16 17 PL-PD-0714-0113 #N/A 2039819301 2336347613 FOOT PAD CAP,MINI ELE 105'C RUBBER O20*2TMM SQUARE GRAIN EC 47u/ 16V 5*7 P=2.
Item 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 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 ViewSonic P/N M-CV-0830-0281 M-SCW-0824-6719 M-SCW-0824-0812 M-SCW-0824-0123 M-SCW-0824-6745 E-R-0405-7169 E-R-0405-3443 #N/A E-R-0405-6601 E-R-0405-5991 #N/A E-R-0405-6001 #N/A #N/A #N/A #N/A #N/A E-C-0404-4834 E-C-0404-3890 #N/A #N/A E-Q-0402-1180 E
Item 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 ViewSonic P/N E-C-0405-4324 #N/A E-C-0404-4212 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A M-MS-0808-6352 E-D-0403-2801 E-D-0403-2802 #N/A #N/A E-D-0403-1496 #N/A #N/A #N/A #N/A #N/A E-FS-0410-0009 E-F
Item 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 ViewSonic P/N #N/A E-R-0405-2983 E-R-0405-7121 #N/A E-R-0405-5997 E-R-0405-5992 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A B-MB-0201-0851 M-LCD-0826-0223 E-X-0415-0119 E-X-0415-0112 Ref.
BOM LIST (VE510s-2) ViewSonic Model Number: VLCDS27996 Rev: 1a Item 1 ViewSonic P/N M-LB-0813-0856 Ref. P/N 2055613379 Description LABEL ViewSonic CONTAINER LABEL Location 6P11 Q'ty 1/96 2 E-C-0404-3815 2346410496 CAP,CHIP 85'C CS 0603/Y5V/50V 0.
Item ViewSonic P/N Ref. P/N Description 21 E-Q-0402-1607 2360100796 XISTOR,PNP R SMD MMBT3906 22 23 24 25 26 27 28 #N/A M-SCW-0824-6715 M-MS-0808-9408 M-SCW-0824-0440 #N/A E-C-0404-4224 E-C-0404-4423 2403702513 2080002200 2061453400 2085740102 2105251400 2341147096 2341122096 SWITCH,TACT SCREW,SPE BUSHING SCREW,B OTW+ SPRING PLATE CAP,CHIP 125'C CAP,CHIP 125'C TSTA-2 4.3mm 160g HUA JIE L355 M3x6 DH NICKEL-PLATED VE710 PLUG RUBBER SCREW B OTW+ M4X10 SPTE T=0.
Item 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 ViewSonic P/N #N/A #N/A C-FP-0301-0993 M-MS-0808-9397 PL-FK-0709-0151 M-MS-0808-9213 M-MS-0808-9214 M-MS-0808-9212 M-MS-0808-9219 #N/A M-SCW-0824-6820 M-MS-0808-9220 M-MS-0808-9221 M-MS-0808-9222 M-MS-0808-9223 C-BC-0302-0583 M-MS-0808-9215 M-BK-0805-0070 Ref.
Item 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 ViewSonic P/N E-Q-0402-7031 M-WR-0828-0460 #N/A M-WR-0828-0451 M-MS-0808-9218 #N/A #N/A #N/A M-MS-0808-6355 #N/A #N/A #N/A M-WR-0828-6626 M-MS-0808-9226 A-PC-0106-0121 A-VIO-0118-0034 M-FC-0809-0794 #N/A #N/A #N/A #N/A #N/A #N/A E-R-0405-7000 E-R-0405-6605 E
8. Exploded Diagram And Spare Parts List FIG.1 14-1 14-2 14-3 8-1 Exploded Diagram 16 25 X2 25 X2 17 4 X2 FIG.2 20-1 20-2 18 X6 MAIN PCB ASS'Y 21 FIG.1 KEYPAD PCB ASS'Y P961 24 5 X2 V901 8 X4 22 X5 4 X2 1-1 1-2 1-3 23 X2 3 FIG.
LCD PANEL P981 P801 P802 P901 P105 P801 P101 P107 P105 MAIN PCB MAIN PCB (for M-Star Scaler) (for Realtek Scaler) POWER PCB P107 P102 P104 P101 P701 P902 KEYPAD PCB P961 I/O CABLE Confidential - Do Not Copy ViewSonic Corporation 36 VA521 VE510b/s-2
EXPLODED PARTS LIST (VA521-1) ViewSonic Model Number: VLCDS27996 Rev: 1b Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16.1 16.
EXPLODED PARTS LIST (VE510b-2) ViewSonic Model Number: VLCDS27996 Rev: 1c Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16.1 16.
8-3 Procedure of Disassembly This section provides disassembly procedures for VA521, VE510b/s-2 LCD Monitor. Before you begin any of these procedures, be sure to turn off the power, computer system, and other attached devices; then disconnect the power cable from the electrical outlet. Moreover, when you disassemble the monitor, be sure to put the screws . in a safe place and separate them according to grouping. Disassembly of Front Cover Hinge Cover " Hinge Cover 1. Unscrew two screws of Rear Cover.
. Disassembly of Rear Cover, Keypad Board and LCD Panel ! X2 2084730062 1. Unscrew two screws that secure Keypad Board. $ # X1 2082630062 % X1 2082630062 " 2. Detach Rear Cover and LCD Panel module from the monitor. 3. Unscrew one screw that secure M/B Shielding Plate. 4. Unscrew one screw that secure Inverter down Shielding Plate. 5. Remove Inverter top Shielding Plate.
& 6. Disconnect three connectors to remove Inverter connector and LCD Panel FPC cable. A A ' A X4 2080002200 7. Unscrew four screws that secure Metal Fitting and remove LCD Panel from Metal Fitting.
. Disassembly of Main Board, Keypad Board and Power Board ! X4 2080003700 1. Unscrew four screws that secure Main Board and disconnect the wires which are connected to Main Board and remove Main Board. " X4 2080003700 2. Unscrew four screws that secure Power Board to remove Power Board.
. Disassembly of Stand unit from Rear Cover ! X6 2084730082 1. Unscrew six screws that secure Stand unit and detach Stand unit from the monitor.
INPUT 3V3 12V I106 DC / DC 3V ONBACKLITE 2V5 I101 RTD2013 XGA RSDS G B VA521 VE510b/s-2 3V3 I901 OZ9RR INVERTER ADJBACKLITE R 12V PANEL POWER 3V3 BR,BG,BB,BCLK FXDIO,XSTB,POL,BXDIO H-Sync LCD PANEL SCALAR V-Sync 12V Confidential - Do Not Copy SWITCHING POWER SUPPLY AC 110~220V CSZ I105 24LC16 EEPROM 44 YCLK,YDIO,YOEE INT SCL SDA DDC-SDA DDC-SCL I104 MTV312M64 HW RESET ONBACKLITE SDA KEY- PAD LED ViewSonic Corporation 9.
10. Schematic Diagrams 10.1. Power (Realtek Scaler) Q104 AP2305 3 2 Q105 2SA1020 2 12V VLCD R180 1 10K + 4K7 C155 47uF/16V R182 R183 220 4.7K 0805 3 Q106 2 MMBT3904 1 onPanel_3V3 3 VLCD_12V R181 R184 1 3V3_PANEL 1 onPanel_12V R185 NC Q105, Q109, R181, R183, R185 NC (AU ) R196 4.
10.2.
10.3. Scaler (Realtek Scaler) 3DVCC L106 200R R3DVCC L107 200R 2V5 P106 XO C145 22pF X102 24.576MHz NC/RSDS_CON30 3DVCC C132 22uF_16V + C133 C134 C135 C136 C137 C138 C139 C140 C141 C142 C143 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF RSDS_CON50 + R158 1M 22uF_16V C146 22pF XI 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 AR1N AR1P TMDS_AVCC R160 NC/4.7K R162 R161 1K NC/4.7K TMDS_AVCC R163 4.
10.5.
10.6. A-D Power (M-star & Realtek Scaler) (3)D810 NC for W18,31DF2FC for WP18 & 48 R832 22 /1206 VCC12V C815 1000pF/1KV 3 L802 D806 UF4007 D810 7 2 11 10,11 NC C819 1000UF/16V D809 31DF2FC 3.3V 1A 5 5 6 L804 JUMPER R831 7,8 D807 10 /1206 R818 560K 1206 UF4005 C823 4700PF Y1 10 /1206 + C814 1000PF/1KV C816 1000UF/16V C804 0.
10.7. Inverter (M-star & Realtek Scaler) HANNSTAR- SXA1 5.8mA P901 F901 1 0R 1206 2 VCC12V R925 0R 1206 2 T901 C914 20P,3KV,5% 8 R917 88225-0211 3.0M,1/2W,3KV R912 2K2 R910 10R 5,4 7 R901 9 HANNSTAR- SXA1 C915 20P,3KV,5% 16:16: 2000 C903 5.9mA P902 Q903 2SC945 R915 100R Q905 2SC945 C918 NC R916 10K I902 AP9960M 4R7 1/4W R902 3300P 1206 C904 4R7 1/4W 3300P 1206 1 2 C911 5P,3KV,5% OFF D906 5.
11.
11-2 MAIN PCB BOTTOM VIEW Confidential - Do Not Copy ViewSonic Corporation 52 VA521 VE510b/s-2
11-3 CON PCB TOP VIEW 11-4 CON PCB BOTTOM VIEW Confidential - Do Not Copy ViewSonic Corporation 53 VA521 VE510b/s-2
11-5 POWER PCB TOP VIEW Confidential - Do Not Copy ViewSonic Corporation 54 VA521 VE510b/s-2
11-6 POWER PCB BOTTOM VIEW Confidential - Do Not Copy ViewSonic Corporation 55 VA521 VE510b/s-2
*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 VA521/VE510b/s-2 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.
