Service manual

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Model No. VLCDS27998-2W/-1W

17” Color TFT LCD Display

Service Manual

ViewSonic VE710b/s-1

ViewSonic



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

(VE710b/s_1_SM_736- Rev. 1a – Dec. 2003)

Summary of content (47 pages)

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Service Manual ViewSonic VE710b/s-1 Model No. VLCDS27998-2W/-1W 17” Color TFT LCD Display (VE710b/s_1_SM_736- Rev. 1a – Dec.
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Copyright Copyright ¤ 2003 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.
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TABLE OF CONTENTS 1. Precautions and Safety Notices 1 2. Specification 2 3. Front Panel Function Control Description 3 4. Circuit Description 5 5. Adjusting Procedure 15 6. Trouble Shooting Flow Chart 18 7. Recommended Spare Parts List 20 8. Exploded Diagram And Spare Parts List 28 9. Block Diagram 32 10. Schematic Diagrams 33 11.
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1. Precaution & Safety Notice WARNING! This service information designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to avoid non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.
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2. Specification Mechanical : Dimension ( W x H x D ) mm Set : a. with stand: b. Without stand: Slim bezel: Base (L X W): Packing : ( W x H x D ) mm: Weight : Net / Gross ( Kg ): Wall Mount (VESA): LCD Panel type: Max. resolution (HxV): Nominal picture size (HxV): Display colors: 377.6 x 374 x 195.6 mm 377.6 x 311.8 x 56.9 mm 19.0 / 19.0 / 19.0/21.0 195.6 x 201 mm 450 x 522 x 135 mm 4.1 / 5.2 100 x 100 mm CPT / CLAA170EA03 1280 x 1024 338 mm x 270 mm 16.
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3. Front Panel Function Control Description Main Menu With OSD controls Front Control Panel shown below in detail Displays the control screen for the highlighted control. Also toggles between two controls on some screens . Also a shortcut to auto image adjust Displays the Main Menu or exits the control screen Scrolls through menu options and Power light Green = ON adjusts the displayed control . Orange = Power Saving Contrast adjustment control screen.
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Main Menu Controls Adjust the menu items shown below by using the up and down buttons. A. Auto Image 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 Image 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. B.
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4. Circuit Description 4-1. Outline POWER On/Off , LED, Button"2" , Up arrow- button , Down arrow button , Button"1" , button , Down arrow button , Button"1" , on the front panel. Video signal connector, audio line -in receptacle and AC-IN are located on the back side of the cabinet.
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4-3. ELECTRICAL SPECIFICATIONS l l Standard conditions Display Area 338 x 270 mm Video Signal 0.7 Vpp Contrast Max. Brightness Max. Ambient 20 +/- 5 ° C Input AC Warming up > 30 min Display 1280 x 1024 POWER - Power supply Input Voltage 90 -240 ~Volts Power Frequency 50/ 60 Hz +/-3Hz Input current <1.5Arms @ 90Vac <0.75Arms@265Vac Inrush current 90A(max.) at 230Vac Power consumption 50Watt Output Voltage @0-4.
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4-4. SIGNAL CABLE : Non-detachable cable with Mini D-Sub 15P connector at one end. Length : 1.8 meter. 4-5.
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(35) ESTABLISHED TIMING I: 720 x 400 @ 70Hz (36) (37) 640 x 480 @ 60Hz (MAC II, Apple) 640 x 480 @ 67Hz (VESA) 640 x 480 @ 72Hz (VESA) 640 x 480 @ 75Hz (VESA) 800 x 600 @ 56Hz (VESA) 800 x 600 @ 60Hz (VESA) ESTABLISHED TIMING II: 800 x 600 @ 72Hz (VESA) 800 x 600 @ 75Hz (VESA) 832 x 624 @ 75Hz (MAC II, Apple) 1024 x 768 @ 60Hz (VESA) 1024 x 768 @ 70Hz (VESA) 1024 x 768 @ 75Hz (VESA) 1280 x 1024 @ 75Hz (VESA) Manufacturer's Reserved Timing: 1152 x 870 @ 75Hz (38-53) (VGA, IBM)
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(72-89) Monitor Description: Monitor S/N: A33030100001 (90-107) Monitor Description: Monitor Range Limits: Vertical Frequency (min) = 50Hz Vertical Frequency (max) = 75Hz Horizontal Frequency (min) = 30Hz Horizontal Frequency (max) = 82Hz Maximum Supported Pixel Clock = 140MHz SECONDARY GTF - NOT SUPPORTED (108-125) Monitor Description: Monitor Name: VE710s (127) Checksum OK Time: 14:35:05 Date: Thu Jul 03, 2003 ______________________________________________________________________ ___________________
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(08-09) ID Manufacturer Name = VSC (11-10) Product ID Code = F618 (12-15) Last 5 Digits of Serial Number = Not Used (16) Week of Manufacture = 01 (17) Year of Manufacture = 2003 (10-17) Complete Serial Number = See Descriptor Block (18) EDID Version Number = 1 (19) EDID Revision Number = 3 (20) VIDEOINPUT DEFINITION: Separate Syncs, Analog singal, 0.700V/0.300V(1.
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(38-53) Standard Timing Identification: 1280 X 1024 @60Hz 1280 X 960 @60Hz 1152 X 864 @75Hz Not Used Not Used Not Used Not Used Not Used (54-71) Detailed Timing / Descriptor Block 1: 1280x1024 Horizontal Image Size: 338 mm Refreshed Mode: Non-Interlaced Pixel Clock: 108.00 MHz Vertical Image Size: 270 mm 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.
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4-6. THEORY OF OPERATION This section describes the function of the LCD monitor per functional block. This monitor includes MB board, inverter board, adapter and button board. l MB Board The MB board is a four-layer, single-landed design with ground and internal planes provided. DC power from the power adapter enter the board through DC jack. Other connectors on the board are for inverter, audio and button board .
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Pin number Pin Name Pin Number Usage 21 P1.3 Key / Power on ,off 13 P3.4 NV_RAM (U4) SDA 14 P3.5 NV_RAM (U4) SCL 25 P1.7 Key_down 9 P6.3 Key_right 24 P1.6 Key_up 16 P6.2 Key_left 37 P4.1 Key_mute 34 P5.6 VGA connector 23 P1.5 Key_select 42 P5.3 LED_red 41 P5.4 LED_green 32 P6.6 LCD panel power1 on / off control 3 P5.0 LCD panel power2 on / off control 36 P4.
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l Power This is a general purpose AC / DC adapter which converter 90~240 Vac to a stabilized DC voltage 12 V with rated output current of 4.16A . Electrical specification described as below. ViewSonic Corporation Rated Input Voltage 90~240 Vac , 50 / 60Hz Operation Input Voltage 90~260 Vac , 47 ~ 63Hz Input Current <1.5A Inrush Current <100A@120Vac Standby Input Voltage 12Vdc Output Voltage Regulation +/-5% Output Ripple & Noise 120mVp-p Rate Output Current <4.
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5. Adjusting Procedure OSD Function Menu 1. Main Menu Press “1” Button (Menu Button) to enter Main Menu: Press Up Button to the previous page or Down Button to the next page . Press “1” Button to exit Main Menu. (1) Auto Image Adjust Page: Press “2” Button to do auto image adjust function. Press “1” Button to exit the page. (2) Contrast/Brightnes Page : Press “2” Button to enter Contrast Item. Press “1” Button to exit the page. 1) Contrast Item Press Up Button to make contrast high.
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Press Up Button to the previous item or Down Button to the next item. 1) H./V. Position Item Press “2” Button to enter H./V. Position item. Press “1” Button to exit H./V. Position item. a) Horizontal Position Option: Press “2” Button to enter the Vertical Position option. Press “1” Button to exit Horizontal Position option. Press Up Button to make current option high. Press Down Button to make current option low b) Vertical Position Option: Press “2” Button to enter the Horizontal Position option.
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Enable,Disable Option Press “2” Button to select the option. Press “1” Button to exit the option Press Up Button to the previous option or Down Button to the next option. 3) OSD Position Item Press “2” Button to enter OSD Position item. Press “1” Button to exit OSD Position item. a) Horizontal Position Option Press “2” Button to enter the Vertical Position option. Press “1” Button to exit Horizontal Position option. Press Up Button to make current option high.
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6. Trouble Shooting Flow Charts 6-1.
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6-2.
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7. Recommended Spare Parts List VE710b-1Recommended Spare Parts List Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ViewSonic P/N B-MB-0201-2726 B-SB-0221-0595 P-BX-0601-0933 P-FM-0602-0840 P-FM-0602-0841 M-MS-0808-7710 M-LB-0813-0918 A-CD-VE710B C-BC-0302-0570 C-BC-0302-0570 C-BS-0303-0506 M-SCW-0824-6797 M-SCW-0824-6798 M-SCW-0824-6799 M-SCW-0824-6800 M-SCW-0824-6801 M-SCW-0824-6802 M-LCD-0826-0193 B-CB-0206-0170 Ref.
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VE710b-1 BOM LIST Item ViewSonic P/N Ref. P/N Description Q'ty Location 1 B-MB-0201-2726 1L7VZZZVS94 L7VC LCD MONITOR (CPT) 2 #N/A 29L7VMB0000 L7VC M/B ASSY 1 3 #N/A 3BL7VSS0009 L7VC M/B S/S ASSY 1 4 #N/A DAL7VCMB2D8 PCB(M/B) L7VC MB(2L,12.
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37 #N/A CS31003J908 RES CHIP 10K 1/10W +-5%(0603) L22,R37,R38,R44,R52,R 55,R56,R61,R65,R69,R7 1,R73,R75,R76,R110 15 4 38 #N/A CS38203J904 RES CHIP 82K 1/10W +-5%(0603) R41,R72,R74,R77 39 #N/A CX0E601R009 EMI FILTER CHIP HZ0805E601R(600,500MA) L8,L9,L10,L11,L12 5 40 #N/A DFFC50FS023 CONN SMD FFC 50P 1R FS(P0.5,H2.24) CN7 1 41 #N/A DFFC30FS140 CONN SMD FFC 30P 1R FS(P0.5,H2.24) CN8 1 42 #N/A CS-3303J901 RESISTOR CHIP 3.
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89 90 91 92 93 94 95 96 97 #N/A #N/A M-SCW-0824-6797 M-SCW-0824-6798 M-SCW-0824-6799 M-SCW-0824-6800 M-SCW-0824-6801 M-SCW-0824-6802 #N/A FCL7A001014 FCL7V012016 JXLM7002011 MF40080BJ29 MM30080BBJ2 MM35080BBW2 MM30060IBJ8 MF40080PBJ6 MM30040IBJ9 AL FOIL L7A(FCL7A001,REV3A) P/B MYLAR-DOWN L7VC(FCL7V012,REV3A) FOIL LM7S(JXLM7002,REV3B) SCREW F4.0*8-B(BNI) SCREW M3.0*8,B(NI) SCREW M3.5*8-B (NI,WASHER) SCREW M3.0*6.0-I(NI) SCREW F4.0*8-P(NI) SCREW M3.0*4.
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VE710s-1 BOM LIST Item ViewSonic P/N 1 #N/A 2 B-MB-0201-2726 3 #N/A Ref. P/N 1L7VZZZVSA9 29L7VMB0000 3BL7VSS0009 Description L7VC LCD MONITOR(CPT/ SILVER) L7VC M/B ASSY L7VC M/B S/S ASSY Location Q'ty 1 1 #N/A DAL7VCMB2D8 PCB(M/B) L7VC MB(2L,12.
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#N/A CS11003J904 RESISTOR CHIP 100 1/10W +-5%(0603) 29 30 #N/A 31 #N/A CS13303F909 CS13903F901 RESISTOR CHIP 330 1/10W +-1%(0603) RESISTOR CHIP 390 1/10W+-1%(0603) #N/A CS21003J906 RES CHIP 1K 1/10W +-5%(0603) #N/A 33 34 #N/A 35 #N/A 36 #N/A CS22003J909 RES CHIP 2K 1/10W +-5%(0603) CS22203F904 CS23603F901 CS24703F908 RES CHIP 2.2K 1/10W,+-1%(0603) RESISTOR CHIP 3.6K, 1/10W,+-1%(0603) RESISTOR CHIP 4.
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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 C-BC-0302-0571 #N/A #N/A #N/A 33L7VFBVS37 EAL7V012022 EBL7V021014 EBL7V022011 L7VC FRONT BEZEL ASSY(SILVER) LCD BEZEL-SILVER L7VC(EAL7V012,REV3B) LENS L7VC(EBL7V021,REV3A) CONTROL BUTTON L7VC(EBL7V022,REV3A) 1 1 1 1 #N/A FEL7V003019 LOGO FRONT-VSC-38MM L7VC(FEL7V003,REV3A) 1 #N/A C-BS-0303-0507 #N/A M-CV-0830-24
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122 M-LB-0813-0745 123 #N/A 124 P-BX-0601-0934 HCL7V002011 HCL7V019011 HFL7V008011 SERIAL LEBAL(HCL7V002,REV3A) CARTON LABEL L7VC(HCL7V019,REV3A) CARTON (FOR SILVER) L7VC(HFL7V008,R3A) A-CD-VE710S 125 126 #N/A 127 #N/A 128 #N/A HGL7V007016 USER MANUAL &CD ROM-S L7VC(HGL7V007,R3A) JXLM5003011 HFL7V009018 JXL7V003017 HANDLE LM5S(JXLM5003,REV 3B) SPACE PLATE L7VC(HFL7V009,REV3A) LCD FILM L7VC(JXL7V003,REV3A) ViewSonic Corporation 27 Confidential - Do Not Copy 1 0.
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8.
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Confidential - Do Not Copy ViewSonic Corporation 29 Confidential - Do Not Copy VE710b/s-1 VE710s/b-1
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VE710b-1 Exploded Parts List ITEM Part Number ViewSonic Part Number Part Description UNIT 1 29L7VMB0000 B-MB-0201-2726 L7VC M/B ASSY 1 2 AS02B012009 B-SB-0221-0595 ADP/INV,ADP- 40AFB,90-264VAC 1 3 23L7VBB0026 B-CB-0206-0170 L7VC BUTTON/B ASSY 1 4 EAL7V012014 #N/A LCD BEZEL L7VC(EAL7V012,REV3B) 1 5 EBL7V021014 #N/A LENS L7VC(EBL7V021,REV3A) 1 6 EBL7V022011 #N/A CONTROL BUTTON L7VC(EBL7V022,REV3A) 1 7 FEL7V003019 #N/A LOGO FRONT-VSC-38MM L7VC(FEL7V003,REV3A) 1 8 FEL7V00
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VE710s-1 Exploded Parts List ITEM Part Number ViewSonic P/N Part Description 1 29L7VMB0000 B-MB-0201-2726 L7VC M/B ASSY 1 2 AS02B012009 B-SB-0221-0595 ADP/INV,ADP- 40AFB,90-264VAC 1 3 23L7VBB0026 B-CB-0206-0170 L7VC BUTTON/B ASSY 1 4 EAL7V012022 #N/A LCD BEZEL-SILVER L7VC(EAL7V012,REV3B) 1 5 EBL7V021014 #N/A LENS L7VC(EBL7V021,REV3A) 1 6 EBL7V022011 #N/A CONTROL BUTTON L7VC(EBL7V022,REV3A) 1 7 FEL7V003019 #N/A LOGO FRONT-VSC-38MM L7VC(FEL7V003,REV3A) 1 8 FEL7V004015 #
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9. Block Diagra 9.1 Video 9.
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10.
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VE710s/b-1 DVI Confidential - Do Not Copy +3.3V+2.5V RSDS AND LVDS SCALAR MST8016 CPT LCD PANEL(15 17 RSDS AND LVDS) +3.3V +12V ANALOG RGB PC VGA EEPROM 24LC16 LCDPWR_ON3.3V +3.3V +3.3V LCDVCC LCDPWR_ON12V POWER MICRO-CONTROLLER MTV312 AUDIO_MUTE POWER INVERTER AND AUDIO BOARD +12V 34063 +3.3V AIC1739 +2.
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5 4 L1 3 100/6 L2 VGA_SDA_O 11 1 6 2 7 3 8 4 9 5 10 IN-H 13 IN-V 14 DDC-SCL 15 PAG E1 VGA INP UT FCM 1608C-300T06 (BULL WILL) L35 C1 2 RED-IN 75/6/F L3 NC I N-H VGA_CON_O VGA_SCL_O + + + + + + + GR E E N + IN DSUB_5V 0.047u L36 R4 C3 0.047u C4 0.047u 33/6 C5 5 RED- 5 GREEN+ 5 D 100/6/NC VGA_CON_O L5 VGA_CON 4 SCL-VGA 4 GREEN-IN 75/6/F R6 NC C6 0.047u C7 0.
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5 4 VAD 3 VPLLVDVI VDPLL VPO 2 1 V DD VDD3V3 VPO 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 63 62 60 59 61 58 57 37 38 29 28 RED+ R EDGREEN+ GREENSOGIN BLUE+ BLUEHSYNC VSYNC TX2+ TX2TX1+ TX1TX0+ TX0TXC+ TXC- R27 VDVI C 390/1% 40 41 43 44 46 47 49 50 52 R+ RG+ GB+ BCK+ CKREXT 66 REFP 67 REFM 69 71 70 32 72 30 31 CSZ SCL SDA HWRESETZ INT DDCROM_CLK/GPO6 DDCROM_DAT/GPO5 73 74 PWM0 PWM1 33 XIN 18 87 97 117 CX601T02001/8 C17 C18 VDDC VDDC VDDC VDDC 53 11 21 84 94 104 114 126 VDDP VDDP V
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5 4 3 2 1 VDD3V3 2 1 X2 100/6 11.0592MHz X2 VSS 10 X1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 C95 C94 C93 C92 C82 1 C47 1 C46 0.1U/6/NC 0.1U/6/NC 0.1U/6 0.1U/6 0.1U/6 0.1U/6 2 2 0.
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5 4 3 VCC12 2 1 LCDVCC5 L CDVDD CN9 Q6 SI2301DS L CDVDD 3 R103 10K/6 C74 C75 0.1U/6 330U/16V Q7 SI2301DS 1 L CDVCC 3 G2 1 1 1 10K/6 2200P/6 0.1U/6 4 330U/16V LVACKM GND L CDVCC 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 4 82K/6 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 BR1N BR0N LVB2P GND BCLKN FCLKP FB0P GND FB1P FB2P LVACKP FG0P POL L CDVCC L CDVCC 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 LVB2P G2 1 Q9 4 L CDVCC R81 3.6K/F/6/NC R82 1.
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5 4 3 2 1 VCC12 AR3 VOLU 10K/6/NC AR4 3.9K/6/NC AC1 1U/8/NC 10K/6/NC SN7002E/NC 2 VOLUME AQ1 5 AR2 1 D 1K/6/NC 3 AR1 D VCC12 AL1 BEAD/1206/NC AL2 BEAD/1206/NC AGND PC AUDIO-IN 100/6/NC L IN_PC AC4 0.47U/8/NC 100/6/NC RIN_ PC AC6 0.
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5 4 3 2 1 PROJECT : VE710s/b Title 5 ViewSonic Corporation 4 40 Confidential – Do Not Copy 3 VE710b/s-1 2 Power Board Size Document Number Date: Monday, November 10, 2003 R ev B Sheet 1 4 of 7
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5 4 3 2 1 PROJECT : VE710s/b Title 5 ViewSonic Corporation 4 41 Confidential – Do Not Copy 3 VE710b/s-1 2 Power Board Size Document Number Date: Monday, November 10, 2003 R ev B Sheet 1 4 of 7
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11.
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Confidential - Do Not Copy ViewSonic Corporation 43 VE710b/s-1
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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 VE710b/s-1Service 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.