![background image](http://html.mh-extra.com/html/viewsonic/vg170mvlcds23724-3w/vg170mvlcds23724-3w_service-manual_1021066011.webp)
YES
YES
NO
YES
START
CHECK
+5V,+2.5VDD,
+3.3V_DVDD
PNL_VCC
END
CHECK POWER CKT
(12V,+5V &+
3.3V&+2.5V CKT)
POWER CKT
POWER CKT
YES
YES
NO
NO
OK
YES
Check U2 O/P Data
TO gm2121
CKT
INPUT CKT
CHECK I/P R,G & B Video,
HSYNC(pin 101),VSYNC(pin 100)
U5 to U2 Signal
START
CHECK Flash memory U5
CKT,D_SUB connector
And U6(74LVC14)
INPUT CKT
REPLACE U6
8
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VG170m