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1. Speaker no sound
6. Trouble Shooting Flow Chart
38
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VX750
Speaker no sound
Enter Mute M ode?
Power s upply of U7 OK?
Short or open solder ing of U7?
Low level at Pin of U7?
R11 & C 107 OK?
Pin 1 of U7 Always < 1V?
Change U7
Pop out audio menu & push E nter Key
to quit mute mode
Check power supply cir cuit
Repair Open / short
Check Q10
Change R11 or C107
Check Q9 & Pin 74 of U3
No
Yes
No
No
Yes
No
Yes
No
Yes
Yes
No
Yes
Содержание VX750 VLCDS27089-1W
Страница 34: ...1 3 2 Select the model name of Option Page 31 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 37: ...2 3 LM5ISP DDC Update 2 3 1 Run the LM5ISP exe Program 34 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 38: ...2 3 2 Select the model name of Option Page 35 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 39: ...2 3 3 Read DDC data from Monitor 36 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 42: ...2 Display color abnormal 39 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 43: ...3 Monitor can not power on 40 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 44: ...4 Monitor white screen 41 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 45: ...5 Monitor black screen 42 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 46: ...6 Audio noise 43 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 47: ...7 Analog input always shows NO SIGNAL 44 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 48: ...8 Digital input always shows NO SIGNAL 45 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 54: ...8 Exploded Diagram And Spare Parts List 51 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 67: ...11 PCB Layout Diagrams Main Board 64 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 68: ...65 ViewSonic Corporation Confidential Do Not Copy VX750 Main Board...
Страница 69: ...66 ViewSonic Corporation Confidential Do Not Copy VX750 Main Board...
Страница 70: ...Main Board 67 ViewSonic Corporation Confidential Do Not Copy VX750...
Страница 71: ...68 ViewSonic Corporation Confidential Do Not Copy VX750 Main Board...
Страница 72: ...69 ViewSonic Corporation Confidential Do Not Copy VX750 Control Board...