Proview 770 - Page 19

NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
No display
(White)
Check the main
board
5V
?
+3.3V ?
H/V Input
Signal ?
Check the main
board
U9/Pin3
?
Change
U9
Check
H/V Signal
Display ?
Nice Job !
Change
Signal Cable
Check
U10,U11,TR1
Check
U8,U13
Check
3.3V Circuit