Larcan Inc MXI201UD User Manual
MXi201U TECHNICAL SERVICE MANUAL
TSM20-365 Rev 2 July 17, 2007
ii
MXi201U
CONTENTS
TSM20-365 MXi201U
TECHNICAL SERVICE MANUAL
1
MXi201U AMPLIFIER–INTRODUCTION ..................................................................................................................1
2
SAFETY NOTICES..........................................................................................................................................................2
2.1
B
ERYLLIUM
O
XIDE
W
ARNING
......................................................................................................................................2
2.2
O
THER
T
OXIC
M
ATERIALS
...........................................................................................................................................2
2.3
D
ANGEROUS
V
OLTAGES
...............................................................................................................................................2
2.3.1
Switch to Safety ....................................................................................................................................................3
3
LARCAN PARTS, ASSEMBLIES, ASSEMBLY DRAWINGS AND SCHEMATIC NUMBERS...........................5
3.1
V
ENDOR
S
TANDARD
P
ART
N
UMBERS
...........................................................................................................................5
3.2
LARCAN
N
UMBERS FOR
P
ARTS
,
A
SSEMBLIES AND
D
OCUMENTATION
.......................................................................5
3.3
L
EADED
R
ESISTORS
......................................................................................................................................................6
3.4
S
URFACE
M
OUNT
R
ESISTORS
1/4W
AND
L
ESS
.............................................................................................................6
3.5
S
URFACE
M
OUNT
C
APACITORS
....................................................................................................................................7
3.6
P
ARTS
L
ISTS
.................................................................................................................................................................7
3.6.1
Production Changes.............................................................................................................................................7
FIGURES
F
IGURE
1
MX
I
A
MPLIFIER
H
EATSINK
A
SSEMBLY
........................................................................................................................1
PUB06-78
MXi DUAL PALLET OPERATIONS AND MAINTENANCE
1
MXI DUAL PALLET AMPLIFIER ...............................................................................................................................1
2
MXI CONTROLLER.......................................................................................................................................................2
3
AMPLIFIER INSTALLATION AND STARTUP .........................................................................................................4
3.1
B
EFORE
A
PPLYING
AC
TO THE
U
NIT
............................................................................................................................4
3.2
A
PPLYING
AC
TO THE
U
NIT
..........................................................................................................................................4
3.3
B
EFORE
T
URNING THE
A
MPLIFIER
ON .........................................................................................................................5
3.4
A
MPLIFIER
ON
S
EQUENCE
............................................................................................................................................6
3.4.1
Turning ON MXi Amplifier ..................................................................................................................................6
4
TEST AND TROUBLESHOOTING ..............................................................................................................................7
4.1
B
ENCH
T
EST
P
ROCEDURES
...........................................................................................................................................7
4.1.1
Front-End Module Bench Test Procedure ...........................................................................................................7
4.1.2
IPA1 Bench Test Procedure.................................................................................................................................7
4.1.3
Driver 21B1751 Bench Test Procedure ...............................................................................................................8
4.1.4
PA Pallet 11A2142G1 Bench Test Procedure......................................................................................................8
4.2
B
ASIC
T
ROUBLESHOOTING
T
ECHNIQUES
......................................................................................................................8
4.2.1
Amplifier Completely OFF...................................................................................................................................8
4.2.2
No RF Output.......................................................................................................................................................8
4.2.3
Output Reduced to 25% .......................................................................................................................................8
5
MAINTENANCE..............................................................................................................................................................9
5.1
D
AILY
...........................................................................................................................................................................9
5.2
M
ONTHLY
.....................................................................................................................................................................9
5.3
S
EMI
-A
NNUALLY AND
A
NNUALLY
...............................................................................................................................9
5.4
T
RANSMITTER
C
OOLING
S
YSTEM
.................................................................................................................................9
6
SERVICE.........................................................................................................................................................................10