Service Manual ViewSonic VT2730-1M Model No. VS13154-1M 27” LCD TV (VT2730-1M_SM Rev. 1a Mar.
Copyright Copyright© 2010 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................................................................. 3 2. Specification................................................................................................. 5 3. Front Panel Function Control Description................................................ 11 4. Circuit Description....................................................................................... 31 5. Adjustment Procedure ............................................
1. Precautions and Safety Notices 1. Appropriate Operation (1) (2) (3) (4) (5) (6) (7) (8) (9) Turn off the product before cleaning. Use only a dry soft cloth when cleaning the LCD panel surface. Use a soft cloth soaked with mild detergent to clean the display housing. Disconnect the power plug from AC outlet if the product is not used for a long period of time. If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.
.2. Handling and Placing Methods Correct Methods: Incorrect Methods: Only touch the metal frame of the LCD panel or the Surface of the LCD panel is pressed by fingers and front cover of the monitor. Do not touch the surface that may cause “Mura” of the polarizer. Take out the monitor with cushions Taking out the monitor by grasping the LCD panel. That may cause “Mura” Place the monitor on a clean and soft foam pad. Placing the monitor on foreign objects.
2. Specification LCD panel of this product shall be provided by “CMO” with a model number of M270H1-L01.The following table defines this panel specification. Any changes in panel must be pre-approved by ViewSonic in written.
2. Video Built-in A/D converter shall provide analog to digital converter for this product. Input Parameter CVBS Characteristics: Video Amplitude Signal DC Level Sync Pulse S-Video Characteristics: Video Amplitude Signal Y, Pb, Pr Characteristics: Video Amplitude Signal Video Bandwidth HDMI Characteristics RGB Characteristics: Signal Type Sync Type Input Signal Rating Sync Level: Frequency Range Pixel Color DDC Compliance EDID Data Table 3. Specification 0.7(min.) – 1.1(max.) V Typical. 0.3 V Y : 1.
4. Electrical The following table defines the electrical specification of this product. 1 Power Input Voltage Range ELECTRICAL SPECIFICATION 100-240VAC +/- 10% Wide Range 2 Input Frequency Range 47-63 Hz 3 Input Current 1.0A @ 115VAC // 0.
AUDIO Zoom Mode Movie Scale, Zoom In,4:3, Normal NR Middle, Strong, Off, Weak, Sound Mode Standard, Music, Movie, Sports, Personal Treble/Bass Bass, Treble, Balance Audio Language(ATSC) English, French, Spanish Surround Sound SRS TruSurround HD, Off Audio Only On, Off Sleep Timer DST OFF, 5,10,15,30,45,60,90,120,180,240 Min Pacific, Alaska, Eastern, Central, Mountain, Hawaii, Atlantic On, Off Time-Format 12/24-hour Auto Sync On, Off Clock Year, Month, Day, Hour, Min, OK, Cancel Menu
6. Remote Control Unit (RCU) An IR remote control unit shall accompany this product along with battery. In addition, this remote control unit shall have an operational distance of 5 meters and an operational angle of 15 degrees for both horizontal and vertical. Besides the key-code and protocol has fully conformed to VS standard. Parameter Type Range Life Testing (Buttons) Color Protocol Specification IR; Made by Sighter Electronics Co., Ltd.
7. Mechanical The following table defines the mechanical specifications of this product for both chassis and cabinet. Parameter Dimension W/O stand Net Weight Gross Weight Net weight *without* stand Chassis Plastic Material External Plastic Chassis Components Exterior Chassis Color/Texture/Details Chassis Color Drift Due to UV-Light Molded Plastic Screen Printed Parts, Bird Logo Recess Rear Label Wall Mount Sample Specification 646.3 x 465.7 x 227.8 mm 646.3x 409.7x 74.8 mm 6.97 kg 8.85 kg 5.
3. Front Panel Function Control Description Item EL )URQW 9LHZ RI WKH 3URGXFW Description Lights up in blue when the TV is turned on. Lights up in orange when the TV is in standby mode. 1 Power LED Indicator 2 Remote Control Receiver Receives IR signals from the remote control. 3 Volume Up Increase sound volume or adjust a highlighted control while in OSD menu. 4 Volume Down Decrease sound volume or adjust a highlighted control while in OSD menu. 5 MENU Turn OSD menu ON/OFF.
5HDU 9LHZ RI WKH 3URGXFW Item Description 1 Power (AC input) Plug-in the supplied AC Power cord and connect to the AC input power source. 2 USB &RQQHFW WR \RXU 86% GHYLFHV VXFK DV 86% ÀDVK GULYH SRUWDEOH KDUG drive. 3 HDMI 1 Input Terminal Connect this port to the HDMI output of A/V device. 4 HDMI 2 Input Terminal Connect this port to the HDMI output of A/V device. 5 PC Audio input Connect the RGB Audio Out on your computer to the RGB Audio on the rear of the LCD TV.
Item Description 12 S-Video input Connect the S-Video cable from the compatible device to this connector on the rear panel of the LCD TV. 13 TV Input Jack Connect this jack to your Cable or VHF/UHF antenna. 14 Headphone Jack Connect to your headphones. By connecting the headphones, you can listen to the sound from the TV on headphones. ＊If you connect the headphones, the TV speakers will be muted. 15 HDMI 3 Input Terminal Connect this port to the HDMI output of A/V device.
Remote Control ViewSonic Corporation Button Description 1 POWER Power ON/OFF 2 MTS Select Mono, Stereo or SAP sound 3 INFO Display current information 4 SLEEP Set timer to turn off TV 5 ZOOM Adjust window size 6 0~9, number buttons Directly channel select 14 Confidential - Do Not Copy ENGLISH Buttons located at the side of the LCD TV will operate the same as these buttons on the remote control.
ENGLISH Button Description 7 GUIDE Show electronic program guide (EPG) 8 - VOL + Press to adjust the volume. 9 LIST Select channel from program list 10 EXIT OSD exit 11 ŸźŻŹ Press these buttons to navigate the OSD menus. Ÿ ź LV IRU PHQX DQG IXQFWLRQ VHOHFW DQG Ż Ź LV ENTER for function adjustment. buttons ENTER: Enter the function setting. ViewSonic Corporation 12 INPUT Input source select 13 MUTE Volume mute ON/OFF 14 TV Direct to TV source 15 C.
Operation Storing Channels into Memory 1. Press the MENU button to display the OSD main menu. 3UHVV Ż RU Ź WR VHOHFW WKH ³&+$11(/´ PHQX WKHQ press ENTER RU ź WR HQWHU WKH PHQX 3UHVV Ÿ RU ź WR VHOHFW ³79 6RXUFH´ DQG XVH Ż RU Ź WR VHOHFW WKH DQWHQQD FRQQHFWLRQ WR ³$LU´ RU ³&DEOH´ $LU 5) VLJQDO SURJUDPV E\ ³$LU´ &DEOH 5) VLJQDO SURJUDPV E\ ³&DEOH´ 3UHVV Ÿ RU ź WR VHOHFW ³$XWR 6FDQ´ WKHQ SUHVV Ź WR enter.
Selecting the Input Source To select the TV or other external input sources connected to the TV. 1. Press the INPUT button on the remote control. 3UHVV Ÿ RU ź WR VHOHFW WKH UHTXLUHG LQSXW VRXUFH EHWZHHQ TV, AV, S-Video, YPbPr, HDMI1, HDMI2, HDMI3, PC or USB. (When in USB input source, the system only supports -3(* %03 DQG 31* LPDJH ¿OHV 7R FRQ¿UP WKH VHOHFWLRQ SUHVV ENTER. Favorite Channel Setting To set your favorite channel into memory: 1. Press the MENU button to display the OSD main menu.
Adding/Erasing Channel When the channel is erased, it will not appear on the VFUHHQ ZKHQ \RX EURZVH WKH FKDQQHOV ZLWK źCHŸ button. To see the channel again, you must add the channel RU SHUIRUP WKH ³$XWR 6FDQ´ SDJH IXQFWLRQ DJDLQ 1. Press the MENU button to display the OSD main menu.
Adjusting the Settings 1. (1) Press the MENU button to display the OSD main menu. 3UHVV Ż RU Ź WR VHOHFW \RXU GHVLUHG WRS 0HQX WKHQ press ENTER RU ź WR HQWHU WKH PHQX 3UHVV Ÿ RU ź WR VHOHFW WKH FRQWURO RI ³&RQWUDVW´ ³%ULJKWQHVV´ ³6KDUSQHVV´ ³7LQW´ ³&RORU´ ³%DVV´ ³7UHEOH´ ³%DODQFH´ WKHQ SUHVV Ż RU Ź WR DGMXVW the level. (4) Press MENU to exit. 2. (1) Press the MENU button to display the OSD main menu.
Setting up Time menu 1. Press the MENU button to display the OSD main menu.
For detailed Close Caption setting: 3UHVV Ÿ RU ź WR VHOHFW ³2SWLRQ´ WKHQ SUHVV Ź WR HQWHU ³2SWLRQ´ VHWWLQJ 3UHVV Ż RU Ź WR VHOHFW WKH 0RGH WR EH ³&XVWRP´ DQG WKHQ XVH Ÿ RU ź WR VHOHFW GHVLUHG RSWLRQV DQG XVH Ż RU Ź WR adjust detailed settings. ＊:KHQ \RX VHOHFW WKH 0RGH WR EH ³'HIDXOW´ \RX FDQ not adjust the detailed settings. Using the Parent Controls 1. Press the MENU button to display the OSD main menu. 3UHVV Ż RU Ź WR VHOHFW WKH ³/2&.´ PHQX 3. Press ENTER RU ź WR HQWHU 3DVVZRUG 4.
US 3UHVV Ź WR VHW 79 RU 03$$ UDWLQJV (1) TV 3UHVV Ÿ RU ź WR VHOHFW ³79´ WKHQ SUHVV Ź WR HQWHU ³79´ UDWLQJ V\VWHP VHWWLQJ 3UHVV Ÿ RU ź WR VHOHFW \RXU GHVLUHG 79 UDWLQJV level.
Canada 3UHVV Ź WR VHW &DQDGLDQ (QJOLVK DQG )UHQFK ratings. (1) Canadian English 3UHVV Ÿ RU ź WR VHOHFW ³&DQDGD (QJ´ 3UHVV Ź WR HQWHU 3UHVV Ÿ RU ź WR VHOHFW \RXU GHVLUHG &DQDGLDQ English rating level.
To Block Unrated Movie or TV Programs 3UHVV Ÿ RU ź WR VHOHFW ³8QUDWHG /RFN´ WKHQ SUHVV Ż RU Ź WR VHOHFW ³2Q´ RU ³2II´ :KHQ ³2Q´ LV VHOHFWHG all programs that are not rated will be blocked. 2. Press MENU to exit. To Set Rating Region Table RRT Setting defines the rating standard for a particular geographic region and/ or country. 3UHVV Ÿ RU ź WR VHOHFW ³557 6HWWLQJ´ WKHQ SUHVV Ź WR enter RRT setting.
To block by Input Source 3UHVV Ÿ RU ź WR VHOHFW ³,QSXW %ORFN´ 3UHVV Ÿ RU ź WR VHOHFW WKH LQSXW VRXUFH WKHQ Ż RU Ź WR VHOHFW IURP ³%ORFN´ RU ³8Q%ORFN´ 3. Press MENU to exit. To Restore Factory Setting 1. Press the MENU button to display the OSD main menu. 3UHVV Ż RU Ź WR VHOHFW WKH ³237,21´ PHQX 3. Press ENTER RU ź WR HQWHU ³237,21´ PHQX 3UHVV Ÿ RU ź WR VHOHFW ³5HVWRUH 'HIDXOW´ WKHQ SUHVV Ź to restore the factory default setting.
Using PC Function 1. When in PC source, press the MENU button to display the OSD main menu.
Using USB Function 1. When input source is selected to USB, insert the USB device into the USB jack. USB only supports JPEG, %03 DQG 31* LPDJH ¿OHV :LWK V\PERO 8VH Ÿ RU ź WR VHOHFW WKH IROGHU \RX ZDQW DQG SUHVV ENTER (See Figure1). 5HWXUQ WR PDLQ PHQX SUHVV Ÿ RU ź WR ´ ³ DQG SUHVV ENTER 6HH )LJXUH 8VH Ÿ RU ź WR VHOHFW WKH LPDJH ¿OHV \RX ZDQW DQG SUHVV ENTER (See Figure 3).
Annotations for OSD Menu Items See below for meanings of the control items in each menu. Picture menu Picture Mode: To select picture mode. Contrast: To adjust contrast of video. Brightness: To adjust luminance of video. Sharpness: To adjust picture sharpness. Tint: To adjust tint level.(Except PC source) Color: To adjust color.(Except PC source) Color Mode: To select and adjust color mode. Zoom Mode: To select image size between Normal, Movie Scale, Zoom in and 4:3.
Time menu Sleep Timer: To set the off timer. Time Zone: To select the time zone appropriate to your location. DST: To turn on/off daylight saving. Time Format: To select 12-hour or 24-hour. Auto Sync: To turn on/off Auto Sync. Clock: To set the clock. Option menu Menu Language: To select OSD language. Transparent: To select OSD (On Screen Display) transparent level. OSD Time Out: To select OSD show time. Closed Caption: To set close caption options.
Lock menu Change Password: To Change the current Password. System Lock: To select On or Off to Lock parent control. Unrated Lock: To block unrated movie or TV programs. Input Block: To block by input source. US: Select TV and MPAA to set the parent control. Canada: Select Canadian English and Canadian French to set the parent control. RRT Setting: To set Rating Region Table. Reset RRT: To reset Rating Region Table.
4. Circuit Description z A/D converter This brick convert is the 110-220AC input voltage to 24V output for inverter use and 5V for panel , system and audio use and 3.3V,1.8V for controller use. z INVERTER In order to drive the CCFLs embedded in the panel module, there is a half bridge inverter to convert by the controller. The input 24V up to hundreds of AC voltage output. The inverter is formed by symmetric in order to drive the separate lamp modules.
5V-tolerant HSYNC / Composite Sync for VGA Input from channel 0 K6 VSYNC0 Schmitt Trigger Input VSYNC for VGA Input from channel 0 J6 HSYNC1 Schmitt Trigger Input HSYNC / Composite Sync for VGA Input from channel 1 G6 VSYNC1 Schmitt Trigger Input VSYNC for VGA Input from channel 1 G5 VSYNC2 Schmitt Trigger Input VSYNC for VGA Input from channel 2 T3 BINM Analog Input Reference Ground for Analog Blue Input N3 BIN0P Analog Input Analog Blue Input from Channel 0 N2 BIN1P Analog Input Analog Blue Input from Cha
AUR2 Analog Input Audio Line Input Right Channel 2 L4 Pin Name Pin Type Function Pin AUL3 Analog Input Audio Line Input Left Channel 3 L5 AUR3 Analog Input Audio Line Input Right Channel 3 M6 AUL4 Analog Input Audio Line Input Left Channel 4 M5 AUR4 Analog Input Audio Line Input Right Channel 4 N6 AUL5 Analog Input Audio Line Input Left Channel 5 N4 AUR5 Analog Input Audio Line Input Right Channel 5 N5 AUCOM Analog Input Reference Ground for Audio Line Input M4 AUVRM Analog Output Negative Reference Voltage
LVA1M Output LVDS A-Link Channel 1 Negative Data Output V17 LVA1P Output LVDS A-Link Channel 1 Positive Data Output Y16 LVA2M Output LVDS A-Link Channel 2 Negative Data Output W16 LVA2P Output LVDS A-Link Channel 2 Positive Data Output V16 LVA3M Output LVDS A-Link Channel 3 Negative Data Output V15 LVA3P Output LVDS A-Link Channel 3 Positive Data Output Y14 LVA4M Output LVDS A-Link Channel 4 Negative Data Output W14 LVA4P Output LVDS A-Link Channel 4 Positive Data Output V14 LVACKM Output LVDS A-Link Negati
C6, D7, C7, B7, R15, R16, R17, T18 GPIO[105:90] I/O General Purpose Input/Output; 4mA driving strength D8, B8, D9, B9, E10, B14, B10, E11, C11, A11, A14, D15, C15, B15, D12, B12 GPIO[89:88] I/O General Purpose Input/Output; 4mA driving strength A15, A12 UART1_TX/ GPIO87 I/O w/ 5V-tolerant Universal Asynchronous Transmitter 1 General Purpose Input/Output; 4mA driving strength C8 UART1_RX/ GPIO86 I/O w/ 5V-tolerant Universal Asynchronous Receiver 1 / General Purpose Input/Output; 4mA driving strength A8 UART2
I2S_OUT_MUTE/ UART1_RX Output Audio Output Mute Control / Universal Asynchronous Receiver 1 C10 Pin Name Pin Type Function Pin UART1_TX/ GPIO87 GPIO79/ UART1_TX I/O w/5V-tolerant Universal Asynchronous Transmitter 1 / General Purpose Input/Output; 4mA driving strength General Purpose Input/Output; 4mA driving strength / Universal Asynchronous Transmitter 1 C8 , D10 UART2_RX UART2_RX/ GPIO84 Input w/5V-tolerant I/O w/ 5V-tolerant Universal Asynchronous Receiver 2 Universal Asynchronous Receiver 2 / General P
I118 DDR2 The EM68B16C is a high-speed CMOS Double-Data-Rate-Two (DDR2), synchronous dynamic random-access memory (SDRAM) containing 512 Mbits in a 16-bit wide data I/Os. It is internally configured as a quad bank DRAM, 4 banks x 8Mb addresses x 16 I/Os The device is designed to comply with DDR2 DRAM key features such as posted CAS# with additive latency, Write latency = Read latency -1, Off-Chip Driver (OCD) impedance adjustment, and On Die Termination(ODT).
5. Adjusting Procedure 5.1. 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. 5.2. MAIN ADJUSTMENTS NO. FUNCTION 1. EEPROM Initial 2. Adjust color temperature DESIGNATION Function Key Function Key 5.3. ALIGNMENT PROCEDURES Adjustment Conditions and Precautions: (A).
figure 1 figure 2 figure 4 figure 3 figure 5 figure 6 3. Power Consumption Check ( VGA MODE ) A. TIMING: 1920 x 1080@60Hz B. Pattern: 1010UPRIGHTNESS PATTERN C. BRIGHTNESS=MAX, CONTRAST=MAX. D. The power that each MODE consumed is shown in Chart 1. MAX POWER COMSUMED POWER LED COLOR NORMAL 75W(max) BLUE Stand-by 1W (max) Chart 1 MODE ORANGE 4. Check the position of the picture displayed and phase auto adjusting (VGA MODE).
8. YPbPr, S-VIDEO, AV, TV, DTV’S , HDMI, USBFUNCTION TEST A. Input YPbPr, S-VIDEO, AV , TV, DTV’S signal and check. B. Input USA air channel (TABLE 1) and USA CATV channel for TV channel. Under YPbPr , HDMI MODE, Make sure the 408i, 480P, 720P, 1080i,1080p is right. Under USB to display “ JPEG, BMP” format. 9. AUDIO FUNCTION TEST A. Audio input includes PC AUDIO IN, S-VIDEO/AV AUDIO IN and YPbPr/DVI AUDIO IN. B. Under PC MODE, input PC AUDIO signal, checks whether the action of AUDIO IN is right. C.
TV Frequency Table: U.S.A Channel (TABLE 1) VIF 45.75 MHz, SIF 41.25 MHz Ch. Freq.
U.S.A. CATV (TABLE 2) VIF 45.75 MHz, SIF 41.25 MHz Ch. 2 3 4 5A 5 6 A-5 A-4 A-3 A-2 A-1 A B C D E F G H I 7 8 9 10 11 12 13 J K L M N O P Q R S T U V W AA BB CC DD EE FF GG HH II 2 3 4 1 5 6 95 96 97 98 99 14 15 16 17 18 19 20 21 22 7 8 9 10 11 12 13 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Freq.
DIGITAL CABLE TV Frequence Table (table 3) U.S.A Channel Frequency Assignments (Cable) unit:MHz. CH NO. 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 41 42 DTV Center Freq 57 63 69 79 85 177 183 189 195 201 207 213 223 129 135 141 147 153 159 165 171 219 225 231 237 243 249 255 261 267 273 279 285 291 297 303 309 315 321 327 333 ViewSonic Corporation CH NO.
TTV receiving test: TV SIGNAL TEST ITEM CENTRALISM TRANSMITTING SIGNAL CHECK CONTENT SET CONTENT CHANNEL FREQUENCY (MHz) ORDER PATTERN SOUND P/S(dB) 55.25 MONO SCOPE SWEEP TONE -10 CHANNEL 2 CHECK CONTENT ELECTRIC ABNORMITY CHANNEL 6 CHANNEL 7 83.25 175.25 400Hz STEREO -10 -10 211.25 COLOR BAR Full White (100 IRE) STAIR CHANNEL 13 DUAL -10 CHANNEL 14 471.25 MULTIBURST MONO -16 CHANNEL 36 603.25 MULTIBURST MONO -10 CHANNEL 69 801.
DTV CHECK METHOD A.CHANNEL14: Check whether there are some pause or the mosaic phenomenon in the picture. B.CHANNEL36: Check whether the color of the color bar is normal. C.CHANNEL69: Turn RF attenuator and check the critical point of the change of the image’s S/N is under LEVEL<45~85> dBu, regards as normally.
pc 2 pc 3 5.4.3 Start the Isp 1. Open the “I.exe” 2. Press the “config” , if the the ISP board have been found ,you will see the picture as bellow. pc.
3. Press the “Connect” ,If all the things are ok and ready, it will show the device type as the bellow picture. Than pres “ᒔࡳ” pc.5 4. Press “read” and choose the right F/W . pc.
5. Press “Auto”, than press “Run”. It will start ISP . When the ISP is ok ,you will see the information as the bellow picture. pc.7 6. Pull away the AC power Cord and the D-SUB Cable. And start another TV set. When we start another TV set with AC ON, we only need to press the “RUN” 5.4.4 USB update process Step 1: Turn off AC power. Step 2: Plug USB device with correct file name (By each models) F/W into socket. Step 3: Turn on AC power and wait for a moment to update automatically.
! VT2730-M LCD TV !!!!!!RS-232 Cable DDC Card PC VGA Cable Barcode Reader 5.5.2 Setup Procedure 1. Connect VGA Card and DDC Card with RS-232 cable. 2. Barcode Reader connects with keyboard and PC keyboard port. 3. Connect DDC Card and VT2730-M LCD TV with VGA Cable. (when key in DVI DDC information, use VGA transform to DVI port ) 4. Connect Power Cord to VT2730-M LCD TV. 5. Press ‘MENU’and ‘ENTER’ at the same time, then go into the BURN IN MODE.
5.5.3 DDC Key In Procedure 1. run DDC exe 2.
3. Press “ENTER” key. 4.
5. Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED OK! 6. Exit program.
5.6 HDMI DDC Key In Procedure There are three EDID files for the different HDMI connectors. So you must be download the different EDID into each HDMI connector. 5.6.1 Equipment Needed - VT2730-M LCD TV - PC - RS-232 cable - Barcode Reader - HDMI Cable - VT2730-M LCD TV RS-232 Cable PC HDMI Cable Barcode Reader 5.6.2 Setup Procedure 1. Connect HDMI Card and DDC Card with RS-232 cable.! 2. Barcode Reader connects with keyboard and PC keyboard port.
3. Connect DDC Card and VT2730-M LCD TV with HDMI Cable. 4. Connect Power Cord to VT2730-M LCD TV.! ! 5.6.3 DDC Key In Procedure 1. Run DDC.exe 2.
3. Press “ENTER” key. 4. Press “F4” key.
5. Input bar code 6. Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED OK! 7.
Packing For Shipping And Disassembly Procedure Packing For Shipping 1. Packing Procedure 1.1 Paste protection film to protect the LCD TV. (Figure 1) 1.2 Put the LCD TV in the PE bag and seal the bag. (Figure 2) Figure 1 Figure 2 1.3 Put the cushions on the LCD TV. (Figure 3) 1.4 Place the LCD TV into the carton and then Put the other cushions on the LCD TV,put all the accessories into the carton. At last, close the carton and seal it with tape. (Figure 4) 1.User’s Guide 2.
PACKING PART LIST (VT2730-M) ViewSonic Model Number: VS13154-1M Rev:1a Item ViewSonic P/N 1 NA 2 P-00008950 3 P-00010152 4 P-00010153 5 P-00010154 6 P-00008947 7 NA 8 NA 9 NA 10 A-00005362 11 P-00010151 12 NA 13 A-00008045 14 A-00008696 ViewSonic Corporation Ref.
Disassembly Procedure 1. Disassembly of Stand, Rear Cover and Shield Plate from LCD TV. 1.1 Unscrew 4 screws to remove Stand and Dust cover. Stand Dust cover 1.2 Unscrew 3 screws to remove Rear Cover.
1.3 Unscrew 6 screws to remove Shield Plate. Shield Plate. 2. Disassembly of Front Cover , Main Board, Power Board and Panel Unit. 2.1 Unscrew 2 screws to remove Power board.
2.2 Unscrew 4 screws to remove Main board and Shield Plate. Main Board 2.3 Unscrew 1 screws to remove Front cover and Panel.
6.
6.
7. Block Diagram HDCP & System EEPROM ATSC+NTSC Combo Tuner SPDIF (Optical) MSB1501 (Demod.) LCD Module CVBS / SIF AV(CVBS) S-Video YPbPr MSD3003EG -LF-S7 VGA (D-Sub) Flash DDR2 HDMI 1 Connector HDMI 2 Connector HDMI 3 Connector TPA3113D2 (Audio Amp.) AV/SV Audio(RCA L/R) TPA6113A2 (Headphone Amp.
8. Schematic Diagrams 8.1. System Power 1 +12V_AMP L101 FB/80R/6A VCC12V DCR_EN Dimming BL_EN 5V_STB C101 R110 0R SW R111 NC/4.7K + R107 NC C104 NC TU_PW_CON R104 NC Q102 2N3904 ADJ_PWM 1 TU_PW_CON 10 Panel_ON-P1 ADJ_PWM 4 Panel_ON-P1 3.3V Stand-by Power VCC12V C106 5V_STB high turn on R114 R113 0R 5V Power for normal operating 5V_STB C111 0.1uF R116 10K 3 R117 NC SW Q105 2N3904 1 NC R505 15K 1 C117 0.1uF ON_PBACK 4 VOUT 2 TAB 4 ADJ R121 110/1% VCC3.
8.2. Tuner & Demod I109 DTVA50FVH1019B GND GND GND GND GND GND RF_AGC B+ AFT NC NC NC NC CVBS NC SIF SCL SDA NC IF_AGC IF(+) IF(-) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 5V_TU AFT 5V_AGC CVBS R148 R149 SIF SCL_TU SDA_TU 5V_DTV 5V_TU L113 NC/1K/1% FB/120R/3A R150 R151 22uF_10V C152 17 18 19 20 21 22 NC/1K NC/1KNC/499/1% R152 C154 10nFR153 C155 10nFR154 T_IF_AGC IF+ IF- 10KIF_AGC 220 IFP 220 IFN C153 + C151 0.
8.3.
8.4. DDR2 DDR1.8V VCC1.8V A_MADR[12:0] DDR1.8V L129 0R A_MDATA[15:0] C323 0.1uF C331 0.1uF C333 0.1uF C332 10uF/10V/Y5V C324 0.1uF C325 0.1uF C326 0.1uF C327 0.1uF C335 0.1uF C336 0.1uF C337 0.1uF C338 0.1uF C328 0.1uF C329 0.1uF C330 0.1uF A_CASZ A_RASZ A_WEZ A_CKE A_ODT A_BA1 A_BA0 A_MCLKZ A_MCLK A_DQM0 A_DQM1 A_DQS1M A_DQS1P A_DQS0M A_DQS0P DDR1.8V C334 0.1uF Close to DDR Power Pin C339 0.1uF C340 0.1uF C341 0.1uF C342 0.1uF DDR1.8V R310 1K R311 1K C343 0.1uF DDR1.
8.5. VGA P106 DSUB-15/10mm VGA-TX 11 1 6 2 7 3 8 4 9 5 10 12 13 14 D105 15 16 VGA_RIN1+ G VGA_GIN1+ B VGA_BIN1+ VGA_HSYNC1 VGA_VSYNC1 VGA_RIN1+ VGA_GIN1+ VGA_BIN1+ UART-RX UART-TX RG- D106 D107 HDMI-WP To 75 ohm GND B- 17 ESD4.7p VGA-RX VGA5V R WP ESD4.7p ESD4.7p VGA_VSYNC VGA_HSYNC D108 D109 D110 ESD4.7p ESD4.7p ESD4.7p UART-RX UART-TX 4 4 HDMI-WP 4 WP 8 R332 100 R333 100 D111 D112 ESD4.7p ESD4.
8.6. Video_Interface YPbPr_RIN0+ YPbPr_GIN0+ YPbPr_BIN0+ CVBS1-RCA S-Video0_Y S-Video0_C COMP1_AUR0 COMP1_AUL0 RCA_AU_IN_3R RCA_AU_IN_3L CVBS1-RCA S-Video0_Y S-Video0_C 4 4 4 COMP1_AUR0 4 COMP1_AUL0 4 RCA_AU_IN_3R 4 RCA_AU_IN_3L 4 YPbPr Input AV & SV Input P107 Close to connector P108 L130 11 10 9 YPbPr_RIN0+ 4 YPbPr_GIN0+ 4 YPbPr_BIN0+ 4 SV-C S-Video0_C 0R D116 12 13 SV-Y 14 8 C346 NC/330pF NC/ESD4.
8.7.
8.8. Audio Interface PHONE_DET PHONE_DET 10 SPDIF_OUT Location near phone jack 3 5 4 2 1 3.3V_2 PC_Audio-AUR1 R422 18K PC_Audio-AUL1 SPDIF OUT L133 FB/600R/1.5A C371 10uF/10V/Y5V C366 330pF R423 12K C367 330pF R424 12K C368 560pF C369 560pF VCC IN GND R428 SPDIF_OUT 4 PC_AUDIO IN JACK Green pin 2,4 NC pin 3,5 NC 1 2 3 C372 0.
8.9. Audio Amp. Interface Audio Pre-Amplifier PHONE_DET MUTE_S D145 1N4148 D144 1N4148 5V_STB PHONE_R PHONE_L 2 2 1 5V_2 2 1 AC OFF no pop noise PHONE_R PHONE_L + C386 R447 470uF/16V/LowESR NC GAIN[1:0] L,L L,H H,L H,H R448 1K 1 Q127 2N3906 R451 1K 3 R450 R449 1 2 47K 10K D146 1N4148 GAIN0 MUTE_N GAIN1 L135 22uH Gain 20dB 26dB 32dB 36dB 0.
8.10. Panel/USB Interface 4 4 4 4 4 4 4 4 4 4 G2_RXE0+ G3_RXE0G0_RXE1+ G1_RXE1B6_RXE2+ B7_RXE2B2_RXE3+ B3_RXE3B4_RXEC+ B5_RXEC- 4 4 4 4 4 4 4 4 4 4 R6_RXO0+ R7_RXO0R4_RXO1+ R5_RXO1R2_RXO2+ R3_RXO2G6_RXO3+ G7_RXO3R0_RXOC+ R1_RXOC- 4 4 4 USB0_DM USB0_DP USB_OCD 4 OSDPOWERKEY G2_RXE0+ G3_RXE0G0_RXE1+ G1_RXE1B6_RXE2+ B7_RXE2B2_RXE3+ B3_RXE3B4_RXEC+ B5_RXECR6_RXO0+ R7_RXO0R4_RXO1+ R5_RXO1R2_RXO2+ R3_RXO2G6_RXO3+ G7_RXO3R0_RXOC+ R1_RXOC- F101 1.
9. PCB Layout Diagrams 9.1.
9.2.
9.3. KEYPAD PCB TOP VIEW 9.4.
9.5. IR PCB TOP VIEW 9.6.
9.7.
9.8.
10.
ViewSonic Corporation 82 Confidential - Do Not Copy VT2730-1M
EXPLODED PARTS LIST (VT2730-M) ViewSonic Model Number: VS13154-1M Rev:1a Item 1 2 3 4 5 6 7 8 9 10 11 12 13 ViewSonic P/N NA NA C-00010085 NA NA NA NA NA NA NA NA M-SCW-0824M-SCW-0824- Ref.
11. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (VT2730) ViewSonic Model Number: VS13154 Rev: 1a Serial No. Prefix: RUB 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 Category Part Name Description ECR/ECN Accessories: [Adapter, ViewSonic 35-key ATSC Remote (PHILIPS RC5 Code) Remote Controller USA WALL 1.
BOM LIST (VT2730-M) ViewSonic Model Number: VS13154 Rev: 1a Item ViewSonic P/N Ref.
ViewSonic Model Number: VS13154 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA N
ViewSonic Model Number: VS13154 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
ViewSonic Model Number: VS13154 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA E-00
* 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 1. Precautions and Safety Notices 2. Specification 3. Front Panel Function Control Description 4. Circuit Description 5. Adjusting Procedure 6.
