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32"LCD TV
Service
Service
Service
Description
Table Of Contents............................................... . .........1
Important Safety Notice...................................................2
Revision List.........................................................3
1. General Specification...........................................4
2. Operating Instructions.......... ... ... ... ... .............5
3. Input/Output Specification.......................................15
4. Mechanical Instructions.........................................17
5.Factory Model................................... . . . . . . . .......20
6.ISP Upgrade...................................... . . ............21
7.Repair Flow Chart ....................................... .......23
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
TABLE OF CONTENTS
SAFETY NOTICE
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
Page Description
8.PCB Layout .................................... . . . . . . . . . . . . . ..27
9. Block Diagram............................................ . . . . .......34
10. Schematic.....................................................35
11.Location wave form andVoltage.......... ...................56
12. Analog input auto calibration...... .............. . ... ..........60
13. Exploded View................................................. ..62
14. BOM List...................................... .................66
15.ServiceBom List................................................147
1
VA320M
MODEL：VA320M
Page
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Summary of Contents for Vizio VA320M
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Page 1: Table Of Contents
32″LCD TV VA320M Service MODEL：VA320M Service Service TABLE OF CONTENTS Description Page Description Page 8.PCB Layout …………………......27 Table Of Contents..……......…...1 9. Block Diagram.……..........34 Important Safety Notice........……..2... -
Page 2: Important Safety Notice
32″LCD TV VA320M Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. -
Page 3: Revision List
32″LCD TV VA320M Revision List Version Release Date Revision Instructions TPV Model Feb-15-09 Initial Release E329GDNK7WVZNNS E329ADNK7WVZNNS Jun-23-09 Revision Release 1. General Specification... - Page 4 32″LCD TV VA320M 1. General Specification Display panel Panel Model : LC320WUE-SAA1 Active Area : 689.40(H)*392.85(V) inch diagonal Outline Dimension : 760（H）x 450（V）x 43 mm（D）Typ. Pixel Pitch : 0.36375 mm x 0.36375 mm Pixel Format : 1920 X 1080 (Full HD), RGB strip arrangement Color Depth : 10–...
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Page 5: Operating Instructions
32″LCD TV VA320M 2. Operating Instructions 2.1 The Use of Remote Control POWER: Press to turn on/off the TV from or to standby mode. INPUT: Press select TV/AV/Comp1/Comp2/ HDMI1/HDMI2/ HDMI3/HDMI 4/VGA/Photos/Music Press to select TV input Press to select AV input... - Page 6 32″LCD TV VA320M 2.2 To Use the Menus 1. Press the MENU button on the remote control or the side of the TV and the OSD menu will be shown on the screen. 2. Press the UP and Down arrow buttons on the remote control buttons or the CH + or CH – buttons on the side of the HDTV to select one of the other menu options.
- Page 7 32″LCD TV VA320M signal for channels. Under this option, you will find the following choices and features: Master List, Additional Scan, Scan Channels and Channel Name Edit. Picture This option will display all parameters which setting values would produce the video quality to the end user’spreference.
- Page 8 32″LCD TV VA320M The following options are available in the Photos menu: Browse Photos This option switches to Photos mode in a browse view screen, allowing the user to see thumbnails of the photos, if available. View Slideshow This option switches to Photos mode and starts the slide show displaying the images in your USB storage device.
- Page 9 32″LCD TV VA320M The following options are available in the TV menu: Master List After your HDTV has stored all of the available channels in memory, you can skip channels from the channel list that you do not want to see and which signals are not strong enough to produce a good picture. You can still tune to skipped channels using the numbered keys on the remote control.
- Page 10 32″LCD TV VA320M The following options are available in the Picture menu: Picture Settings Select Home, Movie, Vivid, Game and Custom. View Mode This option lets you determine how the image appears on the screen. Select Normal, Expanded, Full Screen, or Panoramic.
- Page 11 32″LCD TV VA320M SRS TruVolume When the programming switches to a commercial or when changing from channel to channel, volume fluctuations occur. The SRS TruVolumeTM provides the listener with a comfortable and consistent volume level. Equalizer To adjust the level for different frequencies of the Stereo audio signal, use this option.
- Page 12 32″LCD TV VA320M Ratings Locks This option allows blocking channels based on the ratings established by regulations. Channel Locks This option allows blocking channels no matter what content. User Control Lock This option allows blocking the usage of the controls panel on side of your HDTV.
- Page 13 32″LCD TV VA320M 2.3 Connector 2.3.1 Rear signal • Component Video In & Audio L/R In (YPbPr, Cinch, COMP1/COMP2) • D_SUB in & Phone jack In • Coaxial aerial I/P (TV input)– F-type ( 75 Ω ) • HDMI1/HDMI2/HDMI3 In •...
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Page 14: Front Panel Control Knobs
32″LCD TV VA320M 2.4 Front Panel Control Knobs Remote control sensor- this is the window through which all of the remote control signals pass to the sensor. Point the remote control directly at this window for the best response to the remote signal. -
Page 15: Input/Output Specification
32″LCD TV VA320M 3. Input/Output Specification 3.1 RGB Signal input 15 - Pin Color Display Signal Cable Pin No. Description Pin No. Description Red Video Mandatory +5V Supply for PC Bypass Green Video Sync Ground Blue Video SDA(Remote Control) SCL(Remote Control) - Page 16 32″LCD TV VA320M 3.3 Video input format Frequency Physical Inputs Resolution NTSC from RF 720 x 480 AV ( Side AV: CVBS and Y/C) 720 x 480 YPbPr X2 720 x 480 720 x 480 1280 x 720 1920 x...
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Page 17: Mechanical Instructions
32″LCD TV VA320M 4. Mechanical Instructions 1. Remove the one screw to remove the stand base. 2.Withdraw the stand cover 3. Remove fifteen screws to remove the rear cover. - Page 18 32″LCD TV VA320M 4. Remove five screws and unplug five connectors to remove the scaler board. 5. Remove five screws and unplug three connectors to remove the power board. 6. Remove the screw and the connector to remove the IR board.
- Page 19 32″LCD TV VA320M 8. Remove four screws to remove two speakers. 9.Remove nighteen screws to remove the metal frame and the bezel assy. . 10.The panel...
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Page 20: Repair Flow Chart
32″LCD TV VA320M 7. Repair Flow Chart 1. No Power (No LED indicator) Plug in power cord and interface Check power cord and board interface Check F703 C701 C719 C727 Replace F703 C701 C719 C727 Check U702 C724 C708 C738... - Page 21 32″LCD TV VA320M 3. No display (LED indicator White) (A)U401 X243 don’t work Repair the key board Check key board Check “+5V” Q702 Q708 Replace Q702 Q708 Check U703 all power, R761 Replace NG components Check U401 ,U403 all power Replace NG components Check X402 = 54.1MHz...
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Page 22: Abnormal Display
32″LCD TV VA320M 4. Abnormal display Reset source Check the source Check IO signal filter circuit Replace the filter or inductance Check HDMI U513 and HDMI signal Replace around component TV signal Check Tuner power and TV system setup Check panel Replace panel 5. -
Page 23: Key Board
32″LCD TV VA320M 6. Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Is Button Switch normally? Replace Button Switch Replace Key Pad Board Is Key Pad Board Normally? Check Main Board... -
Page 24: Exploded View
32″LCD TV VA320M 13.Exploded View... - Page 25 32″LCD TV VA320M E329GDNK7WVZNNS ITEM DESCRIPTION 18NC A34T1137PAN 1L0100 DECO BEZEL IRPF8AA6 IR BOARD A33T0583 WS 1L0100 KEY PAD KEPF8AB3 KEYPAD BOARD A34T1138 WS 1L0100 BEZEL 750TVG320UEA11N000 PANEL A15T0622101 32TV-base-support-g3 PWTV8LG1GAAZ POWER BOARD CBPFRD1KA1 MAIN BOARD 705GZ934056 SIDE IO COVER ASSY...