TR850 Service Manual
6.
ADJUSTMENT ........................................................................................................................................ 44
6.1. P
REPARATION
........................................................................................................................................ 44
6.2. M
ETHOD OF
M
ODULATION AND
T
EST
...................................................................................................... 44
6.2.1.
Local Oscillator Adjustment
................................................................................................................................ 44
6.2.2.
Tx Adjustment
........................................................................................................................................................ 45
6.2.3.
Rx Adjustment
....................................................................................................................................................... 47
7.
MAIN TECHNICAL FUNCTIONS AND SPECIFICATIONS ................................................................... 49
8.
MAINTENANCE AND TEST EQUIPMENT ............................................................................................ 51
9.
TROUBLESHOOTING ............................................................................................................................ 52
APPENDIX1 400-470MHZ UHF BAND SPARE PART LIST..................................................................... 55
T
ABLE
1
P
ARTS
L
IST
(R
X
M
ODULE
S
ECTION
) .................................................................................................. 55
T
ABLE
2
P
ARTS
L
IST
(T
X
M
ODULE
S
ECTION
) ................................................................................................... 65
T
ABLE
3
P
ARTS
L
IST
(P
OWER
A
MPLIFICATION
S
ECTION
) .................................................................................. 72
T
ABLE
4
P
ARTS
L
IST
(B
ASEBAND
M
AINBOARD
) ................................................................................................ 76
T
ABLE
5
P
ARTS
L
IST
(F
RONT
P
ANEL
) .............................................................................................................. 84
T
ABLE
6
P
ARTS
L
IST
(P
OWER
B
OARD
) ............................................................................................................ 84
T
ABLE
7
P
ARTS
L
IST
(A
CCESSORY
B
OARD
) ..................................................................................................... 85
F
IGURE
1
R
X
M
ODULE
T
OP
B
OARD
PCB
V
IEW
............................................................................................... 86
F
IGURE
2
R
X
M
ODULE
B
OTTOM
B
OARD
PCB
V
IEW
........................................................................................ 87
F
IGURE
3
T
X
M
ODULE
T
OP
B
OARD
PCB
V
IEW
............................................................................................... 88
F
IGURE
4
P
OWER
A
MPLIFIER
M
ODULE
T
OP
B
OARD
PCB
V
IEW
....................................................................... 88
F
IGURE
5
P
OWER
A
MPLIFIER
M
ODULE
B
OTTOM
B
OARD
PCB
V
IEW
................................................................ 89
F
IGURE
6
B
ASEBAND
M
AINBOARD
T
OP
B
OARD
PCB
V
IEW
............................................................................. 90
F
IGURE
7
B
ASEBAND
M
AINBOARD
B
OTTOM
B
OARD
PCB
V
IEW
....................................................................... 91
F
IGURE
8
F
RONT
P
ANEL
T
OP
B
OARD
PCB
V
IEW
............................................................................................ 92
F
IGURE
9
F
RONT
P
ANEL
B
OTTOM
B
OARD
PCB
V
IEW
..................................................................................... 92
F
IGURE
10
P
OWER
B
OARD
T
OP
B
OARD
PCB
V
IEW
........................................................................................ 93
F
IGURE
11
A
CCESSORY
B
OARD
T
OP
B
OARD
PCB
V
IEW
................................................................................. 94
F
IGURE
12
A
CCESSORY
B
OARD
B
OTTOM
B
OARD
PCB
V
IEW
.......................................................................... 94
F
IGURE
13
R
X
M
ODULE
S
CHEMATIC
D
IAGRAM
............................................................................................... 95
F
IGURE
14
T
X
M
ODULE
S
CHEMATIC
D
IAGRAM
............................................................................................. 102
F
IGURE
15
P
OWER
A
MPLIFIER
M
ODULE
S
CHEMATIC
D
IAGRAM
..................................................................... 107
F
IGURE
16
B
ASEBAND
M
AINBAORD
S
CHEMATIC
D
IAGRAM
............................................................................ 110
F
IGURE
17
F
RONT
P
ANEL
S
CHEMATIC
D
IAGRAM
........................................................................................... 125
F
IGURE
18
P
OWER
B
OARD
S
CHEMATIC
D
IAGRAM
........................................................................................ 126
F
IGURE
19
A
CCESSORY
S
CHEMATIC
D
IAGRAM
............................................................................................. 127
APPENDIX2 136-174 MHZ VHF BAND SPARE PART LIST .................................................................. 128
T
ABLE
1
P
ART
L
IST
(RX
M
ODULE
S
ECTION
) .................................................................................................. 128
T
ABLE
2
P
ART
L
IST
(TX
M
ODULE
S
ECTION
) .................................................................................................. 145
T
ABLE
3P
ART
L
IST
(P
OWER
A
MPLIFICATION
M
ODULE
S
ECTION
) ..................................................................... 151
II
Summary of Contents for TR850
Page 1: ......
Page 45: ...TR850 Service Manual 5 4 Connection 1 2 3 4 6 8 7 5 9 10 13 14 15 16 18 17 11 12 41 ...
Page 90: ...TR850 Service Manual Figure 1 Rx Module Top Board PCB View 86 ...
Page 91: ...TR850 Service Manual Figure 2 Rx Module Bottom Board PCB View 87 ...
Page 93: ...TR850 Service Manual Figure 5 Power Amplifier Module Bottom Board PCB View 89 ...
Page 94: ...TR850 Service Manual Figure 6 Baseband Mainboard Top Board PCB View 90 ...
Page 95: ...TR850 Service Manual Figure 7 Baseband Mainboard Bottom Board PCB View 91 ...
Page 97: ...TR850 Service Manual Figure 10 Power Board Top Board PCB View 93 ...
Page 114: ...TR850 Service Manual Figure 16 Baseband Mainbaord Schematic Diagram 110 ...
Page 169: ...TR850 Service Manual Figure 1 Rx module Top Board Position Mark Diagram 165 ...
Page 170: ...TR850 Service Manual Figure 2 Rx Module Buttom Board Position Mark Diagram 166 ...
Page 172: ...TR850 Service Manual Figure 5 Power Amplifier Module Buttom Position Mark Diagram 168 ...
Page 173: ...TR850 Service Manual Figure 6 Baseband Mainboard Top Board Position Mark Diagram 169 ...
Page 174: ...TR850 Service Manual Figure 7 Baseband Mainboard Buttom Board Position Mark Diagram 170 ...
Page 176: ...TR850 Service Manual Figure 10 Power Board Top Board Position Mark Diagram 172 ...
Page 193: ...TR850 Service Manual Figure 16 Baseband Mainboard Schematic Diagram 189 ...