Dcs Receiver - Samsung SGH-E340 Service Manual

7-14. DCS Receiver

R XO N
R Fin p u t : C Hc e n te r fre q: +6 7 .7 k H z
A m p: -5 0 d B m
Y e s
M O D U LE 1P in 7
> =-6 5 d B m
Y e s
U 1 0 0p in 3 ,4
> =-6 8 d B m
Y e s
U 1 0 0
p inC 1> =-7 0 d B m
p inD 1> =-7 0 d B m
Y e s
U 1 0 0p in
H 8 ,J 8 ,H 7 ,J 7
> =1 V
Y e s
C h e ck U 2 0 0
E N D
N o
R e s o ld e r C N 1 0 1 , C 1 0 1
N o
N o
R e s o ld e r C 1 4 4 , C 1 1 1 , L1 0 4 , 1 0 3
N o
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C h e ck M O D U LE 1
p in 9 ,p in 1 0 ,p in 1 2=L
Y e s
R 1 3 5 , C 1 5 7 , C 1 2 3
> = 2 .7 V
Y e s
7- 23
F low Chart of Troubleshooting
N o
C h e ck A N TS w itc h
c o n tro l c ircu it
R e s o ld e r M O D U LE 1
N o
C h e ck &R e s o ld e r
U 1 0 0 , R 1 1 1
R F 2 6 M H z , R FP S UP a rt
R e s o ld e r U 1 0 0