Egsm Transmitter - Samsung SGH-X480 Service Manual

Samsung mobile phone service manual
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F low Chart of Troubleshooting

9. EGSM transmitter

F 900 p in #7 :
ab ou t 2~3
d B m ?
Y E S
C O N 901, C 903
ch eck & ch an ge
C 910 : 3.7 V ?
B etw een
R 903 &
U 900 : 1.2V ?
Y E S
N O
R 902 :
¡Ö-5d B m?
Y E S
U 900
ch an ge
U 801
ch an ge or
resold er
N O
F 900
p in #4 : 3 V ?
Y E S
N O
C 906
¡Ö4~5d B m ?
Y E S
U 900
ch eck&ch an ge
N O
B A T T E R Y , U 801
ch eck&ch an ge
Y E S
N O
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
N O
T XP O W E RD A C :500 C O D EA P P L IE D
U 100
ch eck&ch an ge
N O
R 903
ch eck&
ch an ge
Y E S
7- 10
C O N TIN U S TXO N C O N D ITIO N
C H :62
R B W: 100K H z
V B W: 100K H z
SP A N: 10M H z
R E FL E V . : 10d B m
A T T . : 20d B
U 100
ch eck&

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