Egsm Transmitter - Samsung Anycall SGH-N700 Service Manual

8. EGSM transmitter

N O
U 4 0 2p in # 8:
a b o u t2 ~ 3d B m ?
Y E S
N O
U 4 0 1 ,C 4 0 7
c h e c k & c h a n g e
C 4 2 3:3 .7V ?
Y E S
B e tw e e n
R 4 0 2& U 4 0 3:
1 .2 V ?
Y E S
N O
C 4 3 4:
¡Ö -5 d B m ?
Y E S
U 4 0 3
c h a n g e
N O
U 4 0 4
p in # 8:1 3 M H z ?
U 1 0 1p in # C 4
V p -p :9 5 0 m V
c h a n g eo rr e so ld e r
Y E S
U 4 0 4
p in # 9:3 V ?
Y E S
N O
U 9 0 0
p in # 4 ,5:1 .7 V ?
Y E S
U 4 0 4
c h a n g eo rr e so ld e r
U 1 0 1
c h a n g e
N O
U 4 0 2
p in # 1:3V ? c h e c k& c h a n g e
Y E S
L 4 0 5
¡Ö 4 ~ 5 d B m ?
Y E S
U 4 0 2
c h e c k& c h a n g e
N O B A T T E R Y ,U 4 0 3
c h e c k& c h a n g e
N O
c h e c k& c h a n g e
U 4 0 4p in # 3 2
:3 V ?
Y E S
N O
N O
U 1 0 1
c h ec ko rc h a n g e
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U 1 0 1
C O N TIN U S TXO N C O N D ITIO N
N O
R 4 0 2
c h e c k& c h a n g e
Y E S
N O
O S C 4 0 1
O S C 4 0 1
p in # 3:1 3 M H z ?
c h a n g eo rr e so ld e r
V p -p:9 5 0 m V
Y E S
N O
0 S C 4 0 1
U 1 0 1p in # C 4
p in # 4:3 V ?
c h a n g eo rr e so ld e r
Y E S
U 1 0 1
c h a n g eo rr e so ld e r
7- 11
F low Chart of Troubleshooting
T X P O W E R D A C : 5 0 0C O D EA P P L I E D
C H :6 2
R B W :1 0 0 K H z
V B W :1 0 0 K H z
S P A N:1 0 M H z
R E FL E V .:1 0 d B m
A T T .:2 0 d B
U 1 0 1