![background image](http://html1.mh-extra.com/html/viewsonic/vx700-3/vx700-3_service-manual_1020017050.webp)
!
59!
2. No Display on Screen (Screen is black, LED is off)
-
Check
Check that C202 positive is at 5V. ( FIG 2.)
Check that the voltage level of CN100 is
approximately 12V
Check CN301 pin1
is12V, pin5 is 5V
IC100 failure
FB100, FB101
failure
F100 or power board failure
YES NO
YES NO
YES NO
Inverter failure
Check IC400
Pin 114 failure
YES
NO
ViewSonic Corporation
Confidential – Do Not Copy
VX700-3
Is screen black?
Summary of Contents for VX700-3
Page 32: ...41 Treble press or to adjust treble ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 38: ...47 OSD Background ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 60: ...6 6 Mechanical Assembly ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 61: ...71 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 62: ...72 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 63: ...73 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 64: ...74 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 66: ...7 Schematic Diagram 65 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 68: ...67 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 69: ...68 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 70: ...69 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 71: ...70 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 72: ...71 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 73: ...72 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 74: ...8 PCB Layout 73 ViewSonic Corporation Confidential Do Not Copy VX700 3...
Page 75: ...ViewSonic Corporation Confidential Do Not Copy VX700 3 74...
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