11.Trouble Shooting Flow Chart
11.1. No Power
Start
NO
NO
12V on L1, L49
remove CN46, CN47
replace power board
5V on L9, L14
check 12V&5V
YES
NO
Check PW328
replace X1,PW328
is
working?
YES
NO
YES
Replace
Keypad board
Check CN6?
Check wire
harness
ViewSonic Corporation
Confidential - Do Not Copy
N4200w-1
73
Summary of Contents for N4200w-1 VS10945-1M
Page 10: ...ViewSonic Corporation Confidential Do Not Copy N4200w 1 9 ...
Page 66: ...10 2 Main PCB Bottom View ViewSonic Corporation Confidential Do Not Copy N4200w 1 65 ...
Page 68: ...10 7AC in Board Top View ViewSonic Corporation Confidential Do Not Copy N4200w 1 67 ...
Page 69: ...10 8AC in Board Bottom View ViewSonic Corporation Confidential Do Not Copy N4200w 1 68 ...
Page 70: ...10 9 IO Board Top View ViewSonic Corporation Confidential Do Not Copy N4200w 1 69 ...
Page 71: ...10 10 IO Board Bottom View ViewSonic Corporation Confidential Do Not Copy N4200w 1 70 ...
Page 72: ...10 11 Power Top View ViewSonic Corporation Confidential Do Not Copy N4200w 1 71 ...
Page 73: ...10 12 Power Bottom View ViewSonic Corporation Confidential Do Not Copy N4200w 1 72 ...