Larcan Inc MXI802U Manuale Utente
PUB07-016 Rev 1 July 12, 2007
07-016-1
MXi802U Operations and Maintenance
CONTENTS
1
THE MXi802 TRANSMITTER........................................................................................................................................3
2
MXi802U AMPLIFIER HEATSINK ASSEMBLY ........................................................................................................4
3
MXi AMPLIFIER CONTROLLER.................................................................................................................................5
4
AMPLIFIER INSTALLATION AND STARTUP ..........................................................................................................6
4.1
B
EFORE
A
PPLYING
AC
TO THE
U
NIT
............................................................................................................................6
4.2
A
PPLYING
AC
TO THE
U
NIT
..........................................................................................................................................6
4.3
B
EFORE
T
URNING THE
A
MPLIFIER
ON .........................................................................................................................7
4.4
A
MPLIFIER
ON
S
EQUENCE
............................................................................................................................................7
4.4.1
Turning ON the MXi Transmitter.........................................................................................................................8
4.4.2
TYPICAL DATA read on the LCD .......................................................................................................................9
5
TEST AND TROUBLESHOOTING .............................................................................................................................10
5.1
B
ENCH
T
EST
P
ROCEDURES
.........................................................................................................................................10
5.1.1
Front-End Module, 21B1473, Bench Test Procedure........................................................................................10
5.1.2
IPA1, 21B1324, Bench Test Procedure..............................................................................................................10
5.1.3
Driver Pallet, 21B1639, Bench Test Procedure.................................................................................................11
5.1.4
PA Pallet 11A2142G1 Bench Test Procedure....................................................................................................11
5.2
B
ASIC
T
ROUBLESHOOTING
T
ECHNIQUES
....................................................................................................................12
5.2.1
No RF Output.....................................................................................................................................................12
5.2.2
Output Reduced to 25% .....................................................................................................................................12
6
MAINTENANCE.............................................................................................................................................................13
6.1
D
AILY
.........................................................................................................................................................................13
6.2
M
ONTHLY
...................................................................................................................................................................13
6.3
S
EMI
-A
NNUALLY AND
A
NNUALLY
.............................................................................................................................13
6.4
T
RANSMITTER
C
OOLING
S
YSTEM
...............................................................................................................................13
7
SERVICE..........................................................................................................................................................................14
7.1
R
EMOVING THE
F
AN
A
RRAY
.......................................................................................................................................14
7.2
R
EPLACING THE
E
NTIRE
F
AN
A
RRAY
.........................................................................................................................15
7.3
R
EPLACING A
S
INGLE
F
AN
..........................................................................................................................................15
8
TEST EQUIPMENT SETUP..........................................................................................................................................16
9
SPECIFICATIONS .........................................................................................................................................................17
9.1
E
LECTRICAL
...............................................................................................................................................................17
9.2
E
NVIRONMENTAL
.......................................................................................................................................................17
9.3
C
OOLING
....................................................................................................................................................................17
9.4
D
IMENSIONS
...............................................................................................................................................................17
9.5
S
HIPPING
W
EIGHT
......................................................................................................................................................17
FIGURES
F
IGURE
1
MX
I
802
P
OWER
S
UPPLY
(
TOP
),
AND
A
MPLIFIERS
.........................................................................................................3
F
IGURE
2
MX
I
802
A
MPLIFIER
H
EATSINK
A
SSEMBLY
...................................................................................................................4
F
IGURE
3
MX
I
C
ONTROLLER
........................................................................................................................................................5
F
IGURE
4
R
EAR
P
ANEL
S
HOWING
I
NTERLOCK
C
ONNECTOR
.........................................................................................................6
F
IGURE
5
M
AIN
M
ENU
..................................................................................................................................................................7
F
IGURE
6
I
NTERLOCKS
S
TATUS
....................................................................................................................................................7
F
IGURE
7
T
RANSMITTER
ON ........................................................................................................................................................8
F
IGURE
8
AGC
A
DJUSTMENT
.......................................................................................................................................................8