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Service Manual

ViewSonic N3235w-1M

Model No. VS11770-1M

32” LCD TV

(N3235w-1M_SM Rev. 1a Jun. 2007)

ViewSonic

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

Summary of content (100 pages)

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Service Manual ViewSonic N3235w-1M Model No. VS11770-1M 32” LCD TV (N3235w-1M_SM Rev. 1a Jun.
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Copyright Copyright © 2007 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.................................................................................................4 3. Front Panel Function Control Description................................................ 9 4. Circuit Description.......................................................................................23 5. Adjustment Procedure ................................................
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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.
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.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.
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ViewSonic Corporation 3 Confidential - Do Not Copy N3235w-1M
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2. Specification Parameter Specification a-Si TFT Active Matrix Wide Color, Transmissive Mode, Normally LCD Type Black LCD Interface 1-Channel LVDS Resolution (Native) WXGA, 1366 x 768 Display Area 31.5” diagonal; 697.68 (H) x 392.25 (V) mm. Pixel Pitch 0.51075(H) × 0.51075(V) mm Viewing Angle H = +/- 88°, V = +/- 88° with CR≥10 (Typical) Contrast Ratio 1200:1 (Typ); 800:1 (Min) Brightness 500 nits (Typ.); 400 nits (Min) Response Time 8ms, (Typical), g-g Color Gamut NTSC 75% Typ Brightness Uniformity 1.
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2. Video Built-in A/D converter shall provide analog to digital converter for this product. Input Parameter Specification CVBS Characteristics: Video Amplitude Signal 0.7(min.)–1.1(max.) V DC Level Sync Pulse Typical. 0.3 Vp-p S-Video Characteristics: Y : 1.0Vp-p W / Neg. Sync (IN 75 Ω ) Video Amplitude Signal C : 0.285Vp-p (IN 75 Ω ) DC Level Sync Pulse Y, Cb,Cr Characteristics: Y:1.0Vp-p(IN 75 Ω) Video Amplitude Signal Pb:0.7 Vp-p(IN 75 Ω),Pr:0.
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fuse) Power Consumption: Normal Interference with RF and Video Electromagnetic Compatibility Power Supply Transient Immunity (Supply Transients and Outage) // Stand by: < 3 W There shall be no visible interference between power supply, RF and video signals. This applies to all available RF channels and video modes. This product shall adhere to the compatibility and immunity specifications in FCC. Able to withstand an ANSI / IEEE C62.41 – 1980 2000V ring wave with no damage.
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Audio Language OSD Language Aspect ratio Blue Mute Time setup Close Caption Memory recall Parental RCU Key function Power Picture Sound TV/CATV MTS Sleep Info Mute 0 ~ 9, Return Guide CH up/down Volume Up/Down/Left/Right arrows Fav.ch Fav.A/D Menu Input Freeze Zoom Wide Enter 6.
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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 Component’s Color Difference Chassis Color Drift Due to UV-Light Molded Plastic Screen Printed Parts, Bird Logo Recess Rear Label Wall Mount Sample Specification W=800mm, H=632.
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3. Front Panel Function Control Description Front View of the Product 1 2 3 4 5 6 7 89 1 Volume Down Decrease sound volume or adjust a highlighted control while in OSD menu. 2 Volume Up Increase sound volume or adjust a highlighted control while in OSD menu. 3 Menu Turn OSD menu ON/OFF. 4 CH Down Channel down when source is TV, or select a control while in OSD menu. 5 CH Up Channel up when source is TV, or select a control while in OSD menu. 6 ENTER To highlight a control in OSD menu.
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Rear View of the Product A B C D E I H G F A SPDIF Optical output Connect this port to the SPDIF input of A/V device. B Cable/Air input jack Connect this port to RF/ CATV/ Digital cable. C Audio output Connect this port to your A/V device with audio in (RCA) connectors or to audio ampliﬁer. D AV/ S-Video signal Audio input (left/right) Connect this port to the RCA audio output connectors of your A/V device.
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Remote Control ViewSonic Corporation 11 Confidential - Do Not Copy N3235w-1M
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Remote control button function as follow POWER Power ON/OFF 2 MTS Select Mono, Stereo or SAP sound 3 INFO Display current information 4 SOUND Select sound modes 5 SLEEP Set timer to turn off TV 6 FREEZE “Freeze-Frame” the current screen 7 ZOOM Adjust window size 8 0~9, - number button Directly channel select 9 VOL+ and VOL- Adjust volume UP/DOWN 10 GUIDE Show electronic program guide (EPG) 11 FAV.
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OSD Functions ADVANCED OPERATION — OSD MENU Video Menu — To adjust the picture quality ENGLISH In TV, AV, S-Video, YPbPr, HDMI source: Note: When in AV, S-Video, YPbPr or HDMI source,the TV option on the left does not appear. In VGA source: • Picture Mode: To select picture mode between User, Cinema, Sport, Vivid, and Hi-Bright. • Brightness: To adjust luminance of video. (right: Max, left: Min.) • Contrast: To adjust contrast of video. (right: Max, left: Min.) • Color: To adjust color.
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• Color Temperature: Press ENTER to select color temperature from User, Cool, Normal, ENGLISH and Warm. When Color Temperature is selected to User, the R, G, B Gain level can be adjusted separately. • Auto Adjust: Press ENTER to auto adjust picture’s horizontal position, vertical position, ﬁne tune and H-Size. • VGA: Press ENTER to adjust VGA setting. ＊H. Position: To adjust the horizontal position of the picture. ＊V. Position: To adjust the vertical position of the picture.
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ENGLISH In AV, S-Video, YPbPr, HDMI, VGA source: • Balance: To adjust left and right audio balance. • Bass: To adjust bass. • Treble: To adjust the treble. • Surround: To enjoy a concert hall effect, select “On” when stereo is playing. • Reverb: To enjoy the reverb sound effect of Concert, Living Room, Hall, Bathroom, Cave, Arena, or Church. • Equalizer: To select equalizer modes from Rock, POP, Live, Dance, Techno, Classic, Soft. • SPDIF Type: To select SPDIF Type from Dolby Digital, PCM, or Off.
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• Auto Scan: To auto scan the TV and DTV channels. Press ENTER to start auto scanning ENGLISH Air and Cable TV channels. Press MENU again at any time to interrupt scanning. • Channel Skip: Press ENTER to skip the channel. To restore the channel, press ENTER again. • MTS: To select audio mode from Mono, Stereo, or SAP when available. • Audio Language: To select audio language from English, Spanish, or French.
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ENGLISH In VGA source: • OSD Language: To select an OSD language from English, Spanish or French. • Aspect Ratio: To select image size between No scale, Normal, Full, Letterbox, Zoom, and Panorama. • Blue Mute: To set the background color to blue when there is no signal. • Time Setup: To set Time Zone, Time, Sleep Timer, and Auto Sleep. ＊Time Zone: To select the time zone appropriate to your location. ＊Time: To set the current time.
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ENGLISH • Close Caption: To set close caption options. ＊Analog Close Caption: To set basic analog closed caption options. (CC1~CC4, TEXT1~TEXT4, Off) ＊Digital Close Caption: To select closed caption signal formats and set up caption modes for digital TV channels. (Service1~6, Off) ＊Digital Caption Style: Press ◄► to select Caption Style from “As Broadcaster” or “Custom”. When “Custom” is selected, use ▲▼ to select the desired controls, ◄► to adjust detailed settings.
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Parental Menu — To set up Parental Control options ENGLISH It is active in all input sources; however, when in AV, S-Video, YPbPr, HDMI, or VGA source, the TV option on the left does not appear. Enter password and the screen below will show. (The default password is 0000.) • Channel Block: To block channels. Use ▲▼ to select the channel you want to block, and then press ENTER to block or unblock it.
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ENGLISH • Program Block: To set TV and Movie Ratings. ＊Rating Enable: Choose “On” to enable the below settings. ＊U.S. TV Ratings: To adjust TV blocking level in the US. You can select between TV-Y, TV-Y7, TV-G, TV-PG, TV-14, or TV-MA. The TV Ratings in the US are deﬁned as following.
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The movie Ratings in the US are deﬁned as following. G General audience R PG Parental guidance suggested NC-17 No one 17 and under limited PG-13 Parents strongly cautioned Restricted X Adult audience only ENGLISH Use ENTER button to block or unblock the ratings, and use MENU to exit. ＊Canadian English Ratings: To adjust blocking level in English-speaking region of Canada. You can select between C, C8+, G, PG, 14+, 18+. ＊The Canadian English Ratings are deﬁned as following.
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• Input Block: To set the input source to be blocked. Users will not be able to watch the ENGLISH content coming from the blocked input source. Use ENTER button to block the input source, and press ENTER again to unblock. • Change Password: To change the password, press ENTER, and the following screen appears. Enter the new password from the remote control, and then enter the new password again to conﬁrm.
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4. Circuit Description A. Analog Switch and Video input. The MT5371 is a complete backend hardware and software solution. It consists of a DTV backend decoder and a TV controller and combines a transport de-multiplexer, a high definition MPEG-2 video decoder, an AC3 audio decoder, an LVDS transmitter, and an NTSC/PAL/SECAM video decoder with a 3D comb filter. On-chip advanced motion adaptive de-interlacer (MDDi™) generates very smooth picture quality for motions.
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C. DTV and HDMI. MT5112 is a fully integrated single-chip 8-VSB and 64/256-QAM demodulator. The chip is designed specifically for the digital terrestrial HDTV and CATV receivers. MT5112 includes a 10-bit A/D converter, 8-VSB/QAM demodulator, TCM (Trellis-Coded modulation) decoder, and Reed- Solomon Forward Error Correction decoder. Moreover, an internal controller handles the acquisition and tracking to ensure the best receiving performance.
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bandwidths up to 150 MHz and video resolutions up to 1080p and WXGA. The built-in High-bandwidth Digital Content Protection (HDCP) decryption engine secures the digital link for transmission of valuable high-definition video and audio. Built-in HDCP self-test engine simplifies manufacturing testing. HDMI Transmitter will pull high HDMI_PLUG_POWER (pin 18 in connector) when the cable is connected.
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de-emphasis function. The IC YDA138 is a class-D amplifier that can be output power of 10Watts per channel on a 6-ohm load speaker when using a 12V power supply operation. MT5112 ATSC+NTSC Combo Tuner TS MT5371 CVBS SIF I2S AV/SV Audio(RCAR/L) YPbPr Audio(RCAR/L) I2S MT8291 (Audio Codec) YDA138 (Audio Amp.
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5. Adjusting Procedure 1. Function Test 1.1. Product - 32” LCD TV 1.2. Test Equipment -PC signal generator: CHROMA 2525 CARD ,CHROMA 2327 or 2329,Pioneer DV-S969AVi. -TV and Video signal generator. -Color analyzer: MINOLTA CA110. -Power meter: CP-310A or CP-320A. -AC power supply transformer: 110V/120V ±20% 60Hz ±5%. -Digital ammeter 1.3.
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Preset color for N3235WM x=0.283±0.015 y=0.298±0.015 1.4.3 Power Consumption Check ( VGA MODE ) A. TIMING: 1360 x 768@60Hz B. Pattern: 1010UPRIGHTNESS PATTERN C. BRIGHTNESS=MAX, CONTRAST=MAX. D. The power that each MODE consumed is shown in Chart 1. MODE NORMAL Stand-by MAX POWER COMSUMED POWER LED COLOR 200W(max) for 32” BLUE 3 W (max) Chart 1 RED 1.4.4 Check the position of the picture displayed and phase auto adjusting (VGA MODE).
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You should do “All Mode Reset” again. Turn off the LCD TV by pressing “Power” button. TV Frequency Table: U.S.A Channel (TABLE 1) VIF 45.75 MHz, SIF 41.25 MHz (Unit：MHz) Ch. 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 Freq.range fp (picture) fs (sound) 59.75 55.25 54 – 60 65.75 61.25 60 – 66 71.75 67.25 66 – 72 81.75 77.25 76 – 82 87.75 83.25 82 – 88 179.75 175.25 174 – 180 185.75 181.25 180 – 186 191.75 187.25 186 – 192 197.75 193.
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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.
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1.5. TV receiving test: 1.5.1 TV SIGNAL TEST ITEM CENTRALISM TRANSMITTING SIGNAL CHECK CONTENT SET CONTENT CHECK CHANNEL FREQUENCY (MHz) CONTENT ORDER PATTERN SOUND P/S(dB) 55.25 MONO SCOPE SWEEP TONE -10 ELECTRIC CHANNEL 2 ABNORMITY SOUND 83.25 COLOR BAR 400Hz -10 SOUND ,PICTURE CHANNEL 6 175.25 Full White (100 STEREO -10 STERO FUNCTION CHANNEL 7 IRE) 211.25 STAIR DUAL -10 SUB FUNCTION CHANNEL 13 471.25 MULTIBURST MONO -16 IMAGE AND SOUND CHANNEL 14 DISTURB 603.
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TIMING TABLE (FACTORY PRESET MODE) (TABLE 3) 1 2 3 4 TIMING 640*480@60HZ 640 *480@75HZ 800 *600@60HZ 800*600@75HZ Pixel Rate 25.175MHZ 31.500MHZ 40.000MHZ 49.500MHZ H TOTAL 31.778us 26.667us 26.400us 21.333us H DISPLAY 25.422us 20.317us 20.000us 16.162us H B-Porch 1.907us 3.810us 2.200us 3.232us H Width 3.813us 2.032us 3.200us 1.616us H Border 0.318us 0.000us 0.000us 0.000us V TOTAL 16.683ms 13.334ms 16.579ms 13.333ms V DISPLAY 15.253ms 12.800ms 15.840ms 12.
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TIMING TABLE (FACTORY PRESET MODE) (TABLE 3) 9 10 TIMING 1360 ×768 60HZ 1280 ×1024 60HZ Pixel Rate 85.5MHZ 108MHZ H TOTAL 20.959us 15.630us H DISPLAY 15.906us 11.852us H B-Porch 2.994us 2.296us H Width 1.310us 1.037us H Border 0.000us 0.000us V TOTAL 16.662ms 16.661ms V DISPLAY 16.097ms 16.005ms V B-Porch 0.377ms 0.594ms Vs Width 0.126ms 0.047ms V Border 0.00ms 0.00ms H/V Sync +/+ +/+ Interlace No. No.
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2. VGA DDC Key In Procedure Note: 1. Every time after replacing the main board, you have to do the DDC key in. 2. If you find the DDC does not conform to the LCD TV, you have to do the DDC key in. 2.1 Equipment Needed - N3235WM LCD TV DDC Card PC RS-232 cable Barcode Reader VGA Cable N3235WM LCD TV RS-232 Cable DDC Card PC VGA Cable Barcode Reader 2.2 Setup Procedure 2.2.1 Connect VGA Card and DDC Card with RS-232 cable.
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2.2.2 Barcode Reader connects with keyboard and PC keyboard port. 2.2.3 Connect DDC Card and N3235WM LCD TV with VGA Cable. (when key in DVI DDC information, use VGA transform to DVI port ) 2.2.4 Connect Power Cord to N3235WM LCD TV. 2.2.5 Press ‘MENU’and ‘ENTER’ at the same time, then go into the BURN IN MODE. 2.3 DDC Key In Procedure 2.3.1 run DDC exe 2.3.
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2.3.3 2.3.4 ViewSonic Corporation Press “ENTER” key.
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2.3.5 Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED OK! 2.3.6 Exit program.
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3. 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. 3.1 Equipment Needed - N3235WM LCD TV PC RS-232 cable Barcode Reader HDMI Cable N3235WM LCD TV RS-232 Cable PC HDMI Cable Barcode Reader 3.2 Setup Procedure 3.2.1 Connect HDMI Card and DDC Card with RS-232 cable.
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3.2.2 Barcode Reader connects with keyboard and PC keyboard port. 3.2.3 3.2.4 Connect DDC Card and N3235WM LCD TV with HDMI Cable. Connect Power Cord to N3235WM LCD TV. 3.3 DDC Key In Procedure 3.3.1 Run DDC.exe 3.3.2 Choose model number then .
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3.3.3 Press “ENTER” key. 3.3.4 Press “F4” key.
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3.3.5 Input bar code 3.3.6 Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED OK! 3.3.
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4. Firmware Upgrade Procedure When you receive the returned LCD TV, please check whether the firmware version is the latest. If not, please do the following procedures to upgrade it to the latest version. 4.1 Equipment Needed - N3235WM LCD TV - Fixture for Firmware Upgrade - VGA Cable - PC (Personal Computer) - Firmware Upgrade Program - One additional LCD TV for checking the program execution N3235WM ISP FIXTURE PC 4.2 Installing the USB device driver. The USB driver will be upgraded if necessary.
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4.5.2 Select COM port. Depends on the COM port assigned in System Device Manager (Refer below right). 4.5.3 Select Baud Rate.
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4.5.4 Enable the USB Bridge. 4.5.5 Browsing the File to download.
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4.5.6 Press Upgrade to download file. Note : 1. The Baud Rate is auto setting if mismatch found between your platform and Mtktool. 2. You can slow down the baud rate if some Flash memory can not works properly in high-speed download. 3. Please call the Media Tek contact window if any problem found like unsupported Flash Type or fail to download.
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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.Power Cord 2.VGA Cable 3.RF Cable 4.
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PACKING PART LIST (N3235w-1) ViewSonic Model Number: VS11770-1M Rev: 1a Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ViewSonic Corporation 47 Confidential - Do Not Copy N3235w-1M ViewSonic P/N Ref.
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Disassembly Procedure 1. Disassembly of Rear Cover from LCD TV. 1.1 Unscrew 9 screws to remove Rear Cover. Rear Cover 2. Disassembly of Main Board,Power Board,Switch Board ,KeyPad Board,Front Cover and Panel Unit. 2.1 Unscrew 5 screws to remove Dust Cover.
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2.2 Unscrew 14 screws to remove Shield Plate. Shield Plate 2.2. Unscrew 8 screws to remove METAL FITTG-I/O-Down.
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2.3. Unscrew 3 screws to remove METAL FITTG-I/O-Side METAL FITTG-I/O-Side 2.4. Unscrew 4 screws and disconnect the wires to remove Main Board.
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2.5. Unscrew 4 screws and disconnect the wires to remove Power Board. Power Board 2.6. Unscrew 3 screws and disconnect the wires to remove KeyPad Board.
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2.7. Unscrew 2 screws to remove Switch Board. 2.8. Unscrew 5 screws to remove Front Cover.
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2.9. Unscrew 4 screws to remove Panel Bracket. Panel Bracket 2.9. Unscrew 6 screws to remove Panel Unit.
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6. Trouble Shooting Flow Chart 6.1. NO POWER START NO NO Check P101 5V,12V Check Wire Connection on power module is OK? Connect the wire YES Replace Power module YES Check 3.
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6.2.
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Check Video wave form is on I114 Pin25? NO Replace I114 Check L138,R223,R222,C393, R224,C394 is OK? S-VIDEO NO Check L142,R238,R239,C405 is OK? Replace L138,R223,R222,C393, R224,C394 NO Replace L142,R238,R239,C405 YES YES Check C178,R140, C177 is OK? NO YES Replace C178,R140,C177 YES Confidential - Do Not Copy YPbPr NTSC TV N3235w-1M 6.3.
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DTV Check +30V on Pin13 +5V on Pin21 of I114? HDMI NO Replace I106,I127 or I111 Check HDMI Cable is well connected? YES Check I115 has output signal at RN01~RN03 Connect the cable YES NO Check I123 is defective? Replace I115 NO Replace I123 YES YES Check X101 has 25MHz clock output NO NO Check I116 has output signal at Pin9,10,13,14,17,18, 21,22,25,26 of P113? Replace X101 YES NO Replace I116 YES Check the LVDS wire from P113 to panel is OK? NO Replace LVDS Wire NO Replace Inve
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7. Block Diagram HDCP & System EEPROM SPDIF (Optical) HDMI Connector LCD Module ATSC+NTSC Combo Tuner MT511x (Demod.) CVBS / SIF MT537x Flash AV(CVBS) DDR SDRAM S-Video YPbPr DDR SDRAM VGA (D-Sub) I2S I2S AV/SV Audio(RCAR/L) MT8291 (Audio Codec) YPbPr Audio(RCAR/L) YDA138 (Audio Amp.
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8. Schematic Diagrams 8.1. DC POWER INPUT POWER INPUT I102 AP1513 SO08 R105 33K R0603 R107 4.7K R0603 OPWM1 +5VSB Q102 2N3904 SOT-23 1 R103 3K R0603 C103 0.1uF C0603 R106 100K R0603 + C507 NC CE025050 Vcc 3 OCSET O/P O/P 6 5 FB 1 DV12 C104 0.1uF C0603 R104 1.21K/ 1% R0603 D102 B340 + C105 470uF/16V/LowESR CE050080 C107 0.1uF C0603 R108 2K/ 1% R0603 2 Amp12V C108 4.7uF/16V/Y5V C0805 C102 + 470uF/16V/LowESR C106 0.
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8.2. TUNER AND DEMOD. NEARLY TUNER SAMSUNG COMBO-TUNER R140 100 I114 GND GND NC NC NC NC NC NC RG_AGC_TP NC VT(+30V) IF+ IFIF_AGC TUNER_IF_TP SCL SDA GND BP(+5V) NC AFT SIF CVBS GND GND GND GND GND GND 1 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 +30V_TUNER L113 FB/200R/2A L0805 C175 0.1uF C0603 C178 47pF C0603 R0603 0 0 R141 R142 R0603 L114 FB/200R/2A C181 0.1uF C0603 DV33_DM CVBS0 R145 4.7K R0603 Close to Tuner R146 4.
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2 OPWRSB 6 ORESET_N TP27 TP28 TP29 TP23 TP24 TP25 TP26 TP07 TP03 TP04 TP05 TP06 TP13 TP14 TP46 TP16 TP17 TP18 TP19 TP20 TP21 TP08 TP09 TP10 TP11 TP12 8.3.
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8.4. MT537x BYPASS CAP. DV33SB AV12 AVCC_SRV AV12 AV33 L124 FB/120R/3A AV33 C223 0.1uF C0603 2,4,6,7,11,13 2,10 2,4,7 2 2,4 AVCC_AADC L0603 C222 0.1uF C0603 L125 47uH AVCC_VAD0 AVCC_ADCPLL AVCC_HDMIPLL LC030085 C224 0.1uF C0603 C225 4.7uF/16V/Y5V C0805 C226 0.1uF C0603 C227 0.1uF C0603 C228 4.7uF/16V/Y5V C0805 C229 0.1uF C0603 2,4,6,9,11,12,13,14 AVCC_PSCANPLL DV33SB XREGVDD AVCC_SYSPLL C230 0.1uF C0603 C233 0.1uF C0603 C242 0.1uF C0603 C235 0.1uF C0603 C236 0.1uF C0603 C237 4.
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8.5. MT537x PERIPHERAL DV33SB DV33 D149 1N4148 R166 4.
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8.6. DDR1 MEMORY DV13_DDR RWE RCAS RRAS RCS RA3 RA2 RA1 RA0 RA4 RA5 RA6 RA7 4 RN05 3 2 1 4 RN09 3 2 1 4 RN13 3 2 1 RCKE R203 RA12 RA11 RA9 RA8 RA13 RBA0 RBA1 RA10 5 6 7 8 5 6 7 8 5 6 7 8 22x4 RN8P4R-I 22x4 RN8P4R-I 22x4 RN8P4R-I 22.1/ 1% R0603 8 22x4 7 6 5 RN8P4R-I 8 22x4 7 6 5 RN8P4R-I 1 RN17 2 3 4 1 RN21 2 3 4 RCLK0 R205 22.1/ 1% R0603 RCLK0_N R215 22.1/ 1% R0603 RCLK1 R216 22.1/ 1% R0603 RCLK1_N R218 22.
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8.7. AV / SV / YPBPR INPUT NEARLY YPBPR CONNECTOR NEARLY MT5372 L138 Y0_IN 1 FB/80R/300mA L0603 Please put the components in the circle on the top layer side.
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8.8.
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D129 2 D130 2 D131 2 D132 2 D133 2 D134 2 D135 2 D136 2 +5VSB 1 NC(DIODE EGA-0603) RX2 1 NC(DIODE EGA-0603) RX2B 1 NC(DIODE EGA-0603) RX1 1 NC(DIODE EGA-0603) RX1B 1 NC(DIODE EGA-0603) RX0 1 NC(DIODE EGA-0603) RX0B 1 NC(DIODE EGA-0603) RXC 1 NC(DIODE EGA-0603) RXCB 23 22 8.9.
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8.10. AUDIO CODEC AND LINE OUT +12V MUTE CIRCUIT R297 1K R0603 2 +5V 3 Q115 2N3906 SOT-23 1 R298 5.1K R0603 D144 NC 470 R0603 AUD_ROUT W D147 2 MUTE D143 1N4148 R396 100K R0603 R300 100K R0603 OPCTRL7=" L": Normal Operation OPCTRL7=" H": Mute MUTE 1 OFF_MUTE NC(EZJZ0V800AA) 2 3 Q113 2SD2653K SOT-23 R302 1K R0603 R414 NC(4.
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8.11. AUDIO AMPLIFIER +5VSB DV33SB Amp12V 2,9,10,13,14 +5VSB 2,4,5,6,9,11,13,14 DV33SB 2 Amp12V 2,3,4,5,6,7,8,9,10,11,13,14 Amp12V + C459 1000uF/16V/LowESR CE050100 C461 0.1uF C0603 15uH LC050100 C462 0.1uF C0805 L153 FB/200R/2A L0805 C463 0.33uF/63V 12V_Amp L154 C467 0.1uF C0603 C465 + 4.
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8.12.
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8.13. IR AND KEYPAD INTERFACE 4 4 4 4 4 2006/12/13_modified DV33SB Q127 2N3904 SOT-23 2 1 Q128 2N3906 SOT-23 1 R0603 R365 4.7K R0603 2 4,10 4,10 4,10 4,10 4,10 OPCTRL0 R366 1K R0603 +5VSB R367 470 R0603 R369 47 R0603 R368 1K R0603 C484 0.
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9. PCB Layout Diagrams 9.1.
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9.2.
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ViewSonic Corporation 74 Confidential - Do Not Copy N3235w-1M 9.3.
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ViewSonic Corporation 75 Confidential - Do Not Copy N3235w-1M 9.4.
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ViewSonic Corporation 76 Confidential - Do Not Copy N3235w-1M 9.5.
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ViewSonic Corporation 77 Confidential - Do Not Copy N3235w-1M 9.6.
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ViewSonic Corporation 78 Confidential - Do Not Copy N3235w-1M 9.7.
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ViewSonic Corporation 79 Confidential - Do Not Copy N3235w-1M 9.8.
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10.
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ViewSonic Corporation 81 Confidential - Do Not Copy N3235w-1M
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EXPLODED PARTS LIST (N3235w-1) ViewSonic Model Number: VS11770-1M Rev: 1a Serial No.
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11. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (N3235w-1) ViewSonic Model Number: VS11770-1M Rev: 1a Serial No.
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BOM LIST (N3235W-1) ViewSonic Model Number: VS11770-1M Rev: 1a Serial No.
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Item 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 ViewSonic P/N N/A E-C-0404-4424 N/A E-C-0404-4424 E-C-0404-4424 N/A E-C-0404-4424 E-C-0404-4424 N/A E-C-0404-4424 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A E-C-0404-4424 E-C-0404-4424 E-C-0404-
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Item 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 ViewSonic P/N N/A N/A N/A E-00003830 N/A N/A N/A E-00003830 N/A N/A N/A E-00003830 N/A N/A N/A N/A N/A E-00000915 E-00003529 E-00000916 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/
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Item 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 ViewSonic P/N E-00003533 E-00003533 E-00003533 E-Q-0402-1624 E-Q-0402-1608 E-Q-0402-1087 E-Q-0402-1624 E-Q-0402-1608 E-Q-0402-1087 E-Q-0402-1624 E-Q-0402-1608 E-Q-0402-1087 E
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Item 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 ViewSonic P/N E-R-0405-6411 N/A E-R-0405-6410 N/A N/A N/A N/A E-R-0405-6409 N/A N/A E-00008393 E-R-0405-6409 E-R-0405-6419 E-00008393 N/A N/A E-R-0405-6601 N/A N/A E-R-0405-6
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Item 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 ViewSonic P/N E-R-0405-6411 E-R-0405-6411 E-R-0405-6600 E-00008393 N/A E-00008393 E-00008393 N/A E-00008393 E-00008393 N/A E-00008393 E-R-0405-6418 E-R-0405-6418 E-R-0405-641
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Item 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 ViewSonic P/N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A E-00000999 N/A N/A N/A N/A N/A E-00000999 N/A N/A N/A N/A N/A N/A N/A N/
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Item 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 ViewSonic P/N E-00008342 E-00008342 E-00008342 E-00008342 N/A E-C-0404-4424 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-C-0404-4424 E-00008342 E-00008
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Item 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 ViewSonic P/N E-00008342 E-00008342 N/A E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-00008342 E-
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Item 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 ViewSonic P/N N/A N/A N/A E-00003830 N/A N/A N/A E-00003830 E-D-0403-1779 E-D-0403-2808 E-D-0403-1779 E-D-0403-2808 E-00003830 N/A N/A N/A E-00003830 E-00003533 E-00003533 E-
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Item 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 ViewSonic P/N E-R-0405-6409 E-R-0405-6419 E-R-0405-6419 E-R-0405-6410 E-R-0405-6411 E-R-0405-6411 E-R-0405-6419 E-R-0405-7000 N/A E-R-0405-7001 E-R-0405-7001 E-R-0405-6411 E-
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Item 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 ViewSonic P/N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A M-SW-0815-0182 N/A N/A N/A M-SW-0815-0182 M-SW-0815-
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Item 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 1042 1043 1044 ViewSonic P/N HW-00008057 N/A N/A N/A N/A M-SCW-0824-0285 M-SCW-0824-6719 N/A N/A CB-00008243 CB-00008249 N/A N/A N/A M-SCW-0824-0285 N/A N/A N/A M-SCW-0824-0812 N/A M-LB-0813-0530 N/A HW-00008151 N/A HW-00008152 PL-00008143 HW-00008160 N/A N/A N/A
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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 1. Precautions and Safety Notices 2. Specification 3. Front Panel Function Control Description 4. Circuit Description 5. Adjustment Procedure 6.