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ME G A 3
ME G A 3
Trouble Shooting
1. Power on Repair chart
1. Power on Repair chart
1 . C h e c k V B A T ( 3 . 8 V ) .
2 . C h e c k V o l t a g e o u t .
I f n o t
, C h e c k t h e
V C O R E 1 . 8 V –
C 3 0 8
V S I M 1 . 8 V / 3 . 0 V –
V M E M 2 . 8 V –
C 3 0 5
D V D D 2 . 8 V –
C 3 0 2
V R T C 1 . 5 V –
C 3 0 6
V C T C X O 2 . 8 V –
A V D D 2 . 5 V –
C 3 0 9
3 . C h e c k t h e I n p u t T C X O 3 2 . 7 6 8 MH z .
I f n o t
, C h e c k t h e
4 . C h e c k t h e O u t p u t T C X O 2 6 MH z
I f n o t
, C h e c k t h e
5 . T r y R e d o w n l o a d
I f n o t
. C h a n g e
I f n o t
, C h e c k t h e
R 3 0 7
U 3 0
0D e f e c t i v e o r C o l d s o l d e r
C 3 1 0
C 3 0 7
( O C S 1 0 0 )
O C S 1 0
0D e f e c t i v e o r C o l d s o l d e r
( C 2 3 6 )
U 2 0
1D 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 )
o r
MC P ( U 5 0 0 )
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