4-12
Verification and Service Information
Service Information
ply is operational, suspect the photodetector and the electrical amplifier unit.
The amplifier unit and the optical input connector cannot be replaced; if
defective, the Agilent 11982A must be returned to Agilent Technologies for
service.
The –12 V and +12 V power supplies are
not
adjusted. The voltages on the
power supply terminals are described in
.
Replacement Procedures
This section contains the replacement procedures for the following assem-
blies:
• RF Cable and RF connector.
• AC cable assembly.
• Power supply.
Table 4-2. Voltages on the dc Power Supply Terminals
Terminal
Description
Voltage
E2, –OUT
Common ground
0 V dc
E2, +OUT
+5 V power supply
+5.7 V dc ±50 mV
E1, –OUT
–12 V power supply
–12 V dc (approximate)
E1, COM
Common ground
0 V dc
E1, +OUT
+12 V power supply
+12 V dc (approximate)
Note
The optical input connector and the amplifier unit must be replaced by Agilent Technolo-
gies. If the optical input connector or the photodetector and electrical amplifier unit fail,
the Agilent 11982A must be sent to Agilent Technologies for service.
