![background image](http://html.mh-extra.com/html/viewsonic/vlcds26064-4w/vlcds26064-4w_service-manual_1021332043.webp)
6.3
"No signal" message appears on screen.
Verify that signal level of selected input
Add word "No"
below this box.
Failure point
1. IC401 failure.
2. Signal cable is disconnected.
Yes
Yes
No
IC606, IC607 Failure
6.4
Keypad does not work.
Verify that the cable between the interface board and
key board is properly connected.
Q401. Q402. Q403, Q404 failure
Failure point
The keypad is disconnected.
Yes
Failure point
No
40
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VP2000s
(D-sub, DVI-A or DVI-D) is normal
Summary of Contents for VLCDS26064-4W
Page 27: ...5 3 6 Click Gprobe 4 24 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 28: ...25 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 29: ...5 3 7 Connect ISP Tool 26 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 32: ...Connect to D Sub Signal cable 29 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 35: ...32 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 36: ...5 3 9 Open VP2000BATCH 33 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 37: ...5 3 10 Key in BATCH VP2000BATCH TXT 34 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 38: ...5 3 11 Press Enter key 35 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 56: ...9 Block Diagram 53 ViewSonic Corporation Confidential Do Not Copy VP2000s ENABLE ...
Page 57: ...10 Schematic Diagrams 54 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board ...
Page 58: ...55 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board ...
Page 59: ...56 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board ...
Page 60: ...57 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Key Board ...
Page 61: ...58 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board ...
Page 62: ...59 ViewSonic Corporation Confidential Do Not Copy VP2000s Inverter Board ...
Page 63: ...11 PCB Layout Diagrams 60 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board ...
Page 64: ...61 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board Bottom ...
Page 65: ...62 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board ...
Page 66: ...63 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board Bottom ...
Page 67: ...64 ViewSonic Corporation Confidential Do Not Copy VP2000s Inverter Board ...
Page 68: ...65 ViewSonic Corporation Confidential Do Not Copy VP2000s Inverter Board Bottom ...