Samsung SGH-M310 - Page 54

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Flow Chart of Troubleshooting
10-16
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10-2-4.
DCS TX
CONTINUOUS TX ON CONDITION
CH
: 698
CH(DCS)
TX POWER CODE:
520
CODE Aplied
RBW
: 100
KHz
VBW
:100
KHz
SPAN
:10
MHz
REF LEV.
:10
dBm
ATT.
:20
dB
PAM
100 pin
111
:
about
2~3
dBm?
RFS
100,
C130,
L101,C100,R100
check&change
PAM
100
pin
4:2.8
V?
U
CD300
check
&
change
PAM
100
pin30
:3.7
V?
NO
NO
YES
YES
NO
PAM
100
pin
3 : 1.2V ?
YES
NO
PAM
100
pin1
7
about
:-5
dBm
?
YES
PAM
100
pin
4:2.8
V?
YES
YES
PAM
100
change or resolder
NO
UCP200
check
R100
Check
NO
RFT100
pin
17 : 2.9V ?
U
CD300
pin
F3
,C311,
C312
change or resolder
YES
RFT100
pin
19,20 : 26
MHz
?
Vp-p
:380
mV?
RFT100
pin
2,3,22,23
:100
mV?
YES
U
CD300
change or resolder
NO
NO
YES
NO
OSC
100
change or resolder
RFT100
change or resolder
BATTERY
,
UCD300
check
&
change