Advertisement
ME G A 3
ME G A 3
Trouble Shooting
2. LCD Dead Repair chart
2. LCD Dead Repair chart
1 . C h e c k t h e K e y P C B a n d L C D F l a t c a b l e , L C D
i f n o t G o o d
, C h a n g e t h e K e y P C B a n d L C D , L C D F P C B
2 . C h e c k V o l t a g e o u t . C 4 5 ( D V D D 2 . 8 V ) , C 1 2 2 ( P o w e r I n 5 V )
I f n o t
, C h e c k t h e
C h e c k t h e U 4 D e f e c t i v e o r C o l d s o l d e r ( c h e c k I n / O u t V o l t a g e )
3 . C h e c k t h e E MI F i l t e r d a t a l i n e . Z D 1 3 ~ 1 7 ( C o l d S t a t e )
I f n o t
, C h e c k t h e
a n d
C P U ( U 1 0 0 )
D e f e c t i v e .
4 . C h e c k L C D s e l e c t d a t a l i n e . Z D 1 7 ~ Z D 1 8
I f n o t
, C h e c k t h e
U 3 0
0D e f e c t i v e o r C o l d s o l d e r
Z D 1 0 0 ~ 1 0
4D e f e c t i v e o r C o l d s o l d e r
C P U ( U 1 0 0 )
D e f e c t i v e o r C o l d s o l d e r
Generated by Foxit PDF Creator © Foxit Software
http://www.foxitsoftware.com For evaluation only.
Mobile Tech
Mobile Tech
Ezz
-
e
Ezz
-
e
U 1 0 0
U 5 0 0
U 3 0 0
www .ezzemobile .com
Advertisement
