Service Manual
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Do Not Copy VG930m-3_VA930m-1 ii Front Panel Function Control Description 8 4. PCB Layout Diagrams 75 ViewSonic Corporation Confidential - Circuit Description 14 5. Adjustment Procedure 21 6. Schematic Diagrams 70 11. Exploded Diagram and Exploded Parts List 66 9. Block Diagram 69 10. TABLE OF CONTENTS 1. Specification 4 3. Troubleshooting Flow Chart 53 7. Recommended Spare Parts List 61 8. Precautions and Safety Notices 1 2.
Do Not Copy VG930m-3_VA930m-1 ii Front Panel Function Control Description 8 4. PCB Layout Diagrams 75 ViewSonic Corporation Confidential - Circuit Description 14 5. Adjustment Procedure 21 6. Schematic Diagrams 70 11. Exploded Diagram and Exploded Parts List 66 9. Block Diagram 69 10. TABLE OF CONTENTS 1. Specification 4 3. Troubleshooting Flow Chart 53 7. Recommended Spare Parts List 61 8. Precautions and Safety Notices 1 2.
Service Manual
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Power Circuit Troubleshooting ViewSonic Corporation Confidential - Do Not Copy VG930m-3_VA930m-1 53 6. Troubleshooting Flow Chart Main Procedure Start Connect all of devices to the LCD monitor Power On Is indicator LED No light? Yes 1 A.
Power Circuit Troubleshooting ViewSonic Corporation Confidential - Do Not Copy VG930m-3_VA930m-1 53 6. Troubleshooting Flow Chart Main Procedure Start Connect all of devices to the LCD monitor Power On Is indicator LED No light? Yes 1 A.
Service Manual
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Yes Function Adjustment No O.K.? Do Not Copy VG930m-3_VA930m-1 54 Backlight Troubleshooting C. No B. Yes Audio Function O.K.? No Yes Display Performance No O.K.? Audio Troubleshooting No Trouble Found End ViewSonic Corporation Confidential - Function Troubleshooting E. 1 Is backlight on? Performance Troubleshooting D.
Yes Function Adjustment No O.K.? Do Not Copy VG930m-3_VA930m-1 54 Backlight Troubleshooting C. No B. Yes Audio Function O.K.? No Yes Display Performance No O.K.? Audio Troubleshooting No Trouble Found End ViewSonic Corporation Confidential - Function Troubleshooting E. 1 Is backlight on? Performance Troubleshooting D.
Service Manual
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Do Not Copy VG930m-3_VA930m-1 55 A. Power Circuit Troubleshooting Start Change AC/ DC Adapter Retry Power On Change Main Board & Retry End End No Trouble Found End ViewSonic Corporation Confidential -
Do Not Copy VG930m-3_VA930m-1 55 A. Power Circuit Troubleshooting Start Change AC/ DC Adapter Retry Power On Change Main Board & Retry End End No Trouble Found End ViewSonic Corporation Confidential -
Service Manual
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Do Not Copy VG930m-3_VA930m-1 56 B. Backlight Troubleshooting Start Change Inverter and End Retry Change Main Board& End Retry Backlight Change End Module No Trouble Found End ViewSonic Corporation Confidential -
Do Not Copy VG930m-3_VA930m-1 56 B. Backlight Troubleshooting Start Change Inverter and End Retry Change Main Board& End Retry Backlight Change End Module No Trouble Found End ViewSonic Corporation Confidential -
Service Manual
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YES NO Change LCD Module YES Bad Uniformity? YES NO Change LCD Module YES Is screen white? Performance Troubleshooting Start Screen is flickering? NO Yes Change VGA Cable No Change Main Board YES YES Screen is scrolling? NO YES Change NO Inverter Board YES Change Main NO Change LCD Board Module YES YES LCD Line Defect? C. Do Not Copy VG930m-3_VA930m-1 57 YES NO Check Connector YES NO Change Main Board YES 2 ViewSonic Corporation Confidential -
YES NO Change LCD Module YES Bad Uniformity? YES NO Change LCD Module YES Is screen white? Performance Troubleshooting Start Screen is flickering? NO Yes Change VGA Cable No Change Main Board YES YES Screen is scrolling? NO YES Change NO Inverter Board YES Change Main NO Change LCD Board Module YES YES LCD Line Defect? C. Do Not Copy VG930m-3_VA930m-1 57 YES NO Check Connector YES NO Change Main Board YES 2 ViewSonic Corporation Confidential -
Service Manual
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D. Function Troubleshooting Start Control Menu not No Functioning? Yes No Trouble Found Change Control Board and Retry? Do Not Copy VG930m-3_VA930m-1 59 No Change Main Board Yes End ViewSonic Corporation Confidential -
D. Function Troubleshooting Start Control Menu not No Functioning? Yes No Trouble Found Change Control Board and Retry? Do Not Copy VG930m-3_VA930m-1 59 No Change Main Board Yes End ViewSonic Corporation Confidential -
Service Manual
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Do Not Copy VG930m-3_VA930m-1 60 Yes No Volume Unadjustable? Yes No No Trouble Found Change Speaker Change Main Board End ViewSonic Corporation Confidential - Audio Troubleshooting Start Make sure sound output, Audio cable is broken? No Sound Yes Change Speaker No Sound is OK.
Do Not Copy VG930m-3_VA930m-1 60 Yes No Volume Unadjustable? Yes No No Trouble Found Change Speaker Change Main Board End ViewSonic Corporation Confidential - Audio Troubleshooting Start Make sure sound output, Audio cable is broken? No Sound Yes Change Speaker No Sound is OK.
Service Manual
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Troubleshooting Flow Chart 7. Block Diagrams 10. Service Manual Layout 3. The form and listing C. Unit Excellent Good Fair Bad 1. Circuit Description 5. Recommended Spare Parts List 8....11.PCB Layout Diagrams B. Front Panel Function Control Description 4. Do you have any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com) ViewSonic Corporation Confidential - Do Not Copy VG930m-3_VA930m-1 83 What do you satisfied with this service manual? Service Manual Content 2. Reader's basic dada: Name: Title: Company: Add: Tel...
Troubleshooting Flow Chart 7. Block Diagrams 10. Service Manual Layout 3. The form and listing C. Unit Excellent Good Fair Bad 1. Circuit Description 5. Recommended Spare Parts List 8....11.PCB Layout Diagrams B. Front Panel Function Control Description 4. Do you have any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com) ViewSonic Corporation Confidential - Do Not Copy VG930m-3_VA930m-1 83 What do you satisfied with this service manual? Service Manual Content 2. Reader's basic dada: Name: Title: Company: Add: Tel...
VG930m User Guide, English
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... 6 Wall Mounting (Optional 7 To Raise and Lower the display 8 Using the LCD Display Setting the Timing Mode 9 OSD and Power Lock Settings 9 Dynamic Contrast 9 Adjusting the Screen Image 10 Main Menu Controls 12 Other Information Specifications 16 Troubleshooting 17 Customer Support 18 Cleaning the LCD Display 19 Limited Warranty 20 Mexico Limited Warranty 22 ViewSonic VG930m
... 6 Wall Mounting (Optional 7 To Raise and Lower the display 8 Using the LCD Display Setting the Timing Mode 9 OSD and Power Lock Settings 9 Dynamic Contrast 9 Adjusting the Screen Image 10 Main Menu Controls 12 Other Information Specifications 16 Troubleshooting 17 Customer Support 18 Cleaning the LCD Display 19 Limited Warranty 20 Mexico Limited Warranty 22 ViewSonic VG930m
VG930m User Guide, English
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...adapter. ViewSonic VG930m 17 Power is ON but no screen image • Make sure the video cable supplied with the LCD display is tightly secured to make sure it to another electrical device (like a radio) into the power outlet to verify that the outlet is securely connected. Troubleshooting No... power • Make sure power button (or switch) is ON. • Make sure A/C power cord is securely connected to the LCD display. • Plug another computer. • If you need a Macintosh ...
...adapter. ViewSonic VG930m 17 Power is ON but no screen image • Make sure the video cable supplied with the LCD display is tightly secured to make sure it to another electrical device (like a radio) into the power outlet to verify that the outlet is securely connected. Troubleshooting No... power • Make sure power button (or switch) is ON. • Make sure A/C power cord is securely connected to the LCD display. • Plug another computer. • If you need a Macintosh ...