Specifications
1-9 ASSEMBLY
EXCHANGE
PROGRAM
Anritsu maintains an exchange assembly program for selected MS462XX
subassemblies and RF components. If a malfunction occurs in one of these
subassemblies, the defective unit can be exchanged. All exchange subassem
-
blies or RF components are warrantied for 90 days from the date of shipment,
or the balance of the original equipment warranty, whichever is longer. A
hard copy or saved to disk copy of the instrument Service Log must accom
-
pany all exchange modules. To access the Service Log, press the Utility front
panel key, followed by the SERVICE LOG menu soft key. Select either PRINT
LOG or SAVE LOG TO DISK.
NOTE
When sending an assembly to the factory for exchange, a
copy of the Service Log must accompany the assembly. Ex
-
change prices can only be offered if the Service Log data is
included with the assembly to be exchanged.
Please have the exact model number and serial number of your unit available
when requesting this service, as the information about your system is filed
according to the instrument model and serial number. For more information
about the assembly exchange program, contact your local sales representative
or call your local Anritsu Service Center. Refer to Table 1-4 for a list of cur-
rent Anritsu Service Centers.
1-10 PREVENTIVE
MAINTENANCE
The MS462XX CPU module contains a battery-backed memory/real time
clock chip (BBRAM) and a static memory (SRAM) backup battery. The
BBRAM chip has a rated life span of 10 years, and the SRAM backup battery
has a worst-case life span of two years at 25°C when the instrument is stored
(always off). Exposure to temperatures above 60°C will dramtically reduce
this worst-case life span. The SRAM backup battery should be replaced every
three years.
For instruments with serial number 995299 and below, the LCD (Anritsu part
number 15-92) contains a backlight flourescent lamp that has a rated 10,000
hour life span. For instruments with serial number 000101 and above, the
LCD (Anritsu part number 15-100) contains a backlight flourescent lamp that
has a rated 50,000 hour life span. Both the SRAM backup battery and
backlight lamp should be replaced periodically per the procedures in Chap
-
ter 7.
1-11 RECOMMENDED
TEST
EQUIPMENT
The following test equipment is recommended for servicing the MS462XX
Vector Network Measurement System. The list is a suggestion and by no
means comprises a comprehensive list of all equipment necessary to service
this system. Functionally equivalent equipment may be substituted for the
recommended manufacturer or model as long as the critical specifications are
met. Inclusion on this list does not constitute an endorsement or suitability of
purpose of any particular equipment or manufacturer. The Application Code
column of the following table represents when or where the specified equip
-
ment would be used:
GENERAL INFORMATION ASSEMBLY EXCHANGE PROGRAM
MS462XX MM 1-7