ViewSonic N1900w-1E Service Manual page 46

6.3. NO DISPLAY
TV
Check I501
Replace
& No
I501
Pin10,Pin11
Yes
SCART
Check I207 Pin61
Check P503 &
No
& Pin67~69
C531~C534
ViewSonic Corporation
AV
Check I207 Check
No
Pin60 L501,C502
Yes
Check I207
No Replace X201
if working
Yes
Check I207
Replace
has output
No
I207
singnal at
RP21~22
Yes
Check P401
Yes
Replace I404
Pin28~30 No
5V?
Yes
Check
LVDS Cable
& LCD Panel
D-SUB
Check I401
Check
No
Pin17,18,19,22,24
L101~L103
Yes
Yes
Check Replace
No
Yes crystal X401 X401
Yes
Check Replace
No
I401 RST I401
43
Confidential - Do Not Copy
DVI
Check I401
Check
Pin3,6,9,12 No
R104~R115
&P127,128
N1900w-1E