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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.......................................14
4. Mechanical Instructions.........................................16
5 . F a c t o r y M o d e l ... ... ... ... ... ... ... ... . . . . . . . . . . . . . . . . . 2 0
6.ISP Upgrade.................................................21
7.Repair Flow Chart .............................................25
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 ............................ .... . . . . ........29
9. Block Diagram..................................................36
10. Schematic.....................................................37
11. White-Balance, Luminance Adjustment...................61
12. Exploded View.............................................. .. 64
13. BOM List.....................................................66
1
VA320E
Model：VA320E
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Table of Contents
Related Manuals for AOC VA320E
Summary of Contents for AOC VA320E
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Page 1: Table Of Contents
32″LCD TV VA320E Service Model：VA320E Service Service TABLE OF CONTENTS Description Page Description Page Table Of Contents..……......…..1 8.PCB Layout ………………….......29 Important Safety Notice........……..2 9. Block Diagram.……...........36 Revision List…………………………………………………3 10. Schematic……………...…………..………………...37 1. General Specification......………..4 11. White-Balance, Luminance Adjustment....61 2. -
Page 2: Important Safety Notice
VA320E 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. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. -
Page 3: General Specification
32″LCD TV VA320E 1. General Specification Display panel Panel Model : CMO V315B3-LN3 Active Area : 697.6845(H)* 392.256(V) inch diagonal Outline Dimension : 760mm (H) X 450mm (V) X 41.1mm (D) Pixel Pitch : 0.17025(H)* 0.51075(V) mm Pixel Format : 1366 X 768 (WXGA), RGB strip arrangement Color Depth : 8 bit, 16.7M colors... -
Page 4: Operating Instructions
32″LCD TV VA320E 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 to select TV/COMP1/COMP2/AV/HDMI1/HDMI2/HDMI SIDE/VGA Press to select TV input Press to select AV input... - Page 5 32″LCD TV VA320E 2.2 To Use the Menus MENU/SELECT – Press to launch the On-Screen Display (OSD) menu. When navigating the OSD, this button is used to select your chosen option. Arrow Buttons ( ) – After pressing MENU/SELECT, use arrow buttons to navigate through the OSDs and adjust options, then press MENU/SELECT to select your chosen option.
- Page 6 32″LCD TV VA320E Brightness Brightness adjusts the black levels in the picture. If the brightness is too low you will not be able to see the detail in darker parts of the picture and if the brightness is too high the picture will look washed out.
- Page 7 32″LCD TV VA320E Volume Increase or decrease the HDTV speaker volume. Bass Adjust low frequency sounds. You can also adjust for bass boost or attenuation. Treble Adjust high frequency sounds. You can also adjust for treble boost or attenuation. Balance Adjust the sound to the left or right.
- Page 8 32″LCD TV VA320E TV Adjusting Press ◄ / ► / ▲ / ▼ to select and adjust options, then press LAST when finished making adjustments. Press LAST to return to the previous screen or repeatedly to exit the OSD. Tuner Mode Select the Tuner Mode option in the TV submenu to set the tuner mode.
- Page 9 32″LCD TV VA320E Language. Select the Language option in the Setup submenu to set up the language.Press the right button you can select English,Francais,and Espanol. Source Select the Source option in the Setup submenu to set the source mode.Press the right button to change the soruce TV or Comp.
- Page 10 32″LCD TV VA320E Password Select the Password Set option in the Parental submenu to set the password for parental control options. Press the right arrow button and the Password panel will be displayed. Enter the four digit password using the number buttons on the remote control.
- Page 11 32″LCD TV VA320E 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 In •...
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Page 12: Front Panel Control Knobs
32″LCD TV VA320E 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 13: Input/Output Specification
32″LCD TV VA320E 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 14 32″LCD TV VA320E 3.3 Video input format Physical Inputs Format NTSC from RF 720 x 480 @60i AV( Side AV: CVBS and Y/C) 720 x 480 @60i YPbPr 720 x 480 @60i 720 x 480 @60p 1280 x 720 @60p...
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Page 15: Mechanical Instructions
32″LCD TV VA320E 4. Mechanical Instructions 1. Remove the one screw to remove the stand base. 2.Withdraw the stand cover 3. Remove eighteen screws to remove the rear cover. - Page 16 32″LCD TV VA320E 4. Remove four screws and unplug five connectors to remove the scaler board. 5. Remove six screws and unplug three connectors to remove the power board. 6. Remove the screw and the connector to remove the IR board.
- Page 17 32″LCD TV VA320E 8. Remove four screws to remove two speakers. 9 Remove five screws and unplug eight connectors to remove the inverter board. 10 Remove night screws to remove the metal frame. 11Remove two screws to remove the bezel assy.
- Page 18 32″LCD TV VA320E 12 the panel...
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Page 19: Repair Flow Chart
32″LCD TV VA320E 7. Repair Flow Chart 1. No Power (No LED indicator) Plug in power cord and interface Check power cord and board interface Check CN701 pin 11, 12 5V, FB707 Replace power board Check Q401, Q403, Q406, Q407 around... -
Page 20: Abnormal Display
32″LCD TV VA320E (B) U401 MT5380L work Reset source Check the source Check LVDS cable Re-plug in LVDS cable Check “+12V” panel power Q703, FB701, Replace Q703, FB701, FB703 FB703 Check BL_ON signal CN701 Pin 1 Replace main board Check panel Replace panel 4. - Page 21 32″LCD TV VA320E 5. No sound Reset source Check the source Check U601 circuit Replace around component Check U603 circuit Replace around component Check mute circuit Replace around component Check Speaker Replace Speaker TV sound check TV setup and power...
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Page 22: Key Board
32″LCD TV VA320E 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 23: Exploded View
32″LCD TV VA320E 12.Exploded View... - Page 24 32″LCD TV VA320E E329M2NKW7VZNNS MODEL:VA320E ITEM DESCRIPTION 18NC A34T1137PAN 1L0100 DECO BEZEL IRPF8AA6 IR BOARD A33T0583 WS 1L0100 KEY PAD KEPF8AB3 KEYPAD BOARD A34T1138 WS 1L0100 BEZEL 750TVM315BN311N000 PANEL A15T0560101 32TV-base-support-g3 PWTV9L6CMSA6 POWER BOARD CBPF92GKZ1 MAIN BOARD INTV9L6CMSA3 INVERTER BOARD...