Egsm Receiver - Samsung SGH-X430 Service Manual

7 . S G H - X 4 3 0 Fl o w

8. EGSM Receiver

C O N T I N U O U SR X O N
R FI N P U T:6 2 C H
A M P:-5 0 d B m
N O R M A LC O N D I T I O N
c a tc hth ec h a n n e l?
YES
U 1 0 0 5C H E C K
p in 1 5¡Ã - 6 5 d B m ?
YES
U 1 0 0 5C H E C K
p in 1 ,2¡Ã - 6 5 d B m ?
YES
U 9 0 0C H E C K
p in 2 0 ,2 1¡Ã - 6 5 d B m ?
YES
U 9 0 0C H E C K
p in8:1 3 M H z?
V p -p:8 6 0 m V ?
YES
U 9 0 0C H E C K
p in9 :c le a n3 V ?
YES
U 9 0 0p in 1 ,2 ,3 ,2 8
V p -p:1 0 0 m V ?
YES
C H E C K
U 7 0 0
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C h a r t o f T r o u b l e s h o o t i n g
NO
C h e c kso ld er e dsta tu so f
C 1 0 0 1 ,C 1 0 0 0
NO
C O N 1
r e so ld e ro rc h a n g e
NO
U 1 0 0 5
r e so ld e ro rc h a n g e
NO
C 1 0 0 3 ,C 1 0 0 4 ,L 1 0 0 1
r e so ld e ro rc h a n g e
NO
O S C 9 0 1C H E C K
p in3:1 3 M H z?
V p -p:9 5 0 m V ?
YES
C 9 1 2 ,R 9 0 3 ,C 9 0 2
r e so ld e r
NO
U 1 0 0p in 4 6 ,C 1 1 4
c h e c ko rr e so ld e r
NO
U 9 0 0
r e so ld e ro rc h a n g e
SAMSUNG Proprietary-Contents may change without notice
NO
O S C 9 0 1C H E C K
p in4:c le a n3 V
?
YES
O S C 9 0 1c h a n g eo r
r e so ld e r
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