Table of Contents
Advertisement
10-2-6. PCS Transmitter
U102 p in 6
a bout
2~3dBm?
YES
1
U102,C101
check & change
PAM101 pin 4 : 3.7V
PAM101 pin 3 : 'HIGH'
PAM101 pin
7
c ha n g e &resolder
8
C135
cha nge or resolder
U100
pin35,36,37,38
1.7V
NO
9
10
U300
check &
change
change
NO
U102
pin 2 : 2.8V
YES
PAM101 pin2
3~4dBm?
NO
YES
PAM101/R126
chec k & cha nge
NO
YES
NO
YES
NO
U300
PAM101
p i n 1 : ' H IGH'
check & cha nge
YES
PAM101
NO
pi n 6 : 1.2V
?
YES
NO
14
: -5dBm?
YES
PAM101
U100
pin40 :
NO
7~11dBm?
YES
U100
NO
pin21 13MHz
Vp-p :950mV
YES
U100
U100
change or
11
resolder
U300
NO
check &
change
3
BATTERY, BATTERY C ONNECTOR
check & change
U300
check & change
6
NO
pin 3 : 13MHz
Vp-p : 950mV
YES
change or reso lder
10-25
Flow Chart of Troubleshooting
2
CONTINUS TX ON
CONDITION
MS TX level 12
CH : 660
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
4
5
TCX101
U100
YES
change or
resolder
NO
T CX101
12
Advertisement
Table of Contents
