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V
V
I
I
T
T
E
E
L
L
C
C
O
O
M
M
M
M
O
O
B
B
I
I
L
L
E
E
T
T
E
E
C
C
H
H
N
N
O
O
L
L
O
O
G
G
Y
Y
S
S
.
.
A
A
.
.
TABLE OF CONTENTS
1. INTRODUCTION
.......................................................................................................................................................4
2. SPECIFICATION
.......................................................................................................................................................4
2.1
P
RODUCT
S
TRUCTURE
............................................................................................................................. 4
2.2
TSM501
/
VTL501
S
PECIFICATIONS
......................................................................................................... 4
2.3
B
ATTERY
S
PECIFICATIONS
........................................................................................................................ 5
2.4
AC
C
HARGER
S
PECIFICATIONS
................................................................................................................. 5
3. MENU TREE
..............................................................................................................................................................6
4. TECHNICAL DESCRIPTION
................................................................................................................................10
4.1
O
VERVIEW
............................................................................................................................................. 10
4.2
RF
PART
D
ESCRIPTION
........................................................................................................................... 12
4.2.1 Description of Frequency Synthesizer Circuit
..............................................................................12
4.2.2 Description of Rx Part Circuit
.............................................................................................................13
4.2.3 Description of Tx Part Circuit
.............................................................................................................15
4.3
L
OGIC
P
ART
D
ESCRIPTION
...................................................................................................................... 16
4.3.1 Keypad/ LCD
...........................................................................................................................................16
4.3.2 Voice Processing Part
..........................................................................................................................16
4.3.3 Mobile Station Modem( MSM, U125)
..............................................................................................16
4.3.4 Memory Part (U113)
.............................................................................................................................18
4.3.5 Power Supply Part
................................................................................................................................18
4.4
P
OWER
U
P
S
EQUENCE
........................................................................................................................... 19
5. SERVICING TOOLS
...............................................................................................................................................21
5.1
SERVICING
TOOLS ............................................................................................................................ 21
5.2
D
OWNLOADER
....................................................................................................................................... 24
5.3
HOW
TO
USE
LAUTERBACH............................................................................................................. 31
5.4
CAL.
EXE
(
WRITING
CAL
D
ATA
)............................................................................................................... 35
6. MEASUREMENT
....................................................................................................................................................37
6.1
M
EASUREMENT
C
ONFIGURATION
............................................................................................................ 37
