Egsm Transmitter - Samsung SGH-P408 Service Manual

8. EGSM transmitter

U 1005 p in
N O
12 : ab ou t
2~3 d B m ?
Y E S
C N 1001, C 1000
ch eck & ch an ge
C 1014 :
3.7 V ?
B etw een
R 1008&U 1001
: 1.2V ?
Y E S
N O
R 1001:
¡Ö-5d B m?
C 1016 :
3V ?
U 1001
ch an ge
N O
U 901
p in 9,10,12,13
:-20d B m?
U 100p in 39,C 111
ch an ge or
resold er
U 901
N O
p in 5,6,7,8
:1.7V?
U 700
U 1001
ch an ge
ch an ge or
resold er
U 1005
p in 13 : 2.8 V ?
Y E S
B etw een
L 1008& C 1007
N O
¡Ö4~5d B m ?
Y E S
U 1005
ch eck&ch an ge
N O B A T T E R Y , U 100
ch eck&ch an ge
Y E S
N O
Y E S
N O
Y E S
U 700
ch eck
U 901
p in 14,23,26,32 :
2.8V?
Y E S
N O
U 902p in 5,25,
28 : 3V?
Y E S
U 902
p in7 : 13M H z?
V p -p : 950m V
Y E S
U 902
p in 9,10,11,
1213: 3V ?
U 901
ch an ge or
resold er
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SG H- P408 F low Chart of Troubleshooting
N O
U 700
ch eck&ch an ge
N O
R 1008
ch eck&ch an ge
Y E S
N O
U 100 p in 33,C 110
ch an ge or resold er
Y E S
N O
Y E S
N O
U 700
ch eckor
ch an ge
Y E S
3- 15
C O N T IN U S T XO NC O N D IT IO N
T XP O W E RD A C :500 C O D E
A P P L IE D
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 700
ch eck&ch an ge
O SC 801 O SC 801
N O
p in3 : 13M H z? ch an ge or
V p -p: 950m V resold er
Y E S
0SC 801
U 100
N O
p in4 : 3V p in 33,C 110
?
ch an ge or
resold er
Y E S
U 902
ch an ge or
resold er