Servicing the Attenuation Control Unit 7
Keysight J7211A/B/C Operating and Service Manual 67
The above can be ordered by contacting any Keysight Sales Office.
Reducing ESD damage
– To help reduce the amount of ESD damage that occurs during installation, testing, or servicing
instruments use the following guidelines:
– Be sure that all instruments are properly earth-grounded to prevent buildup of static charge.
– Personnel should be grounded with a resistor- isolated wrist- strap before touching the center
pin of any connector and before removing any assembly from the instrument.
– Before connecting any coaxial cable to an instrument connector for the first time each day,
momentarily ground the center and outer conductor of the table.
– Handle all PC board assemblies and electronic components only at static-safe workstations.
– Store or transport PC board assemblies and electronics components only in static-shielding
containers.
– PC board assembly edge-connector contacts may be cleaned by using a lintfree cloth with a
solution of 80% electronics-grade isopropyl alcohol and 20% deionized water. This should be
performed at a static-safe workstation.
Table 7-1 Static-safe accessories
Keysight part number Description
9300-0797
Set includes:
– 3M static control mat 0.6 m x 1.2 m (2 ft x 4 ft)
– 4.6 m x (115 ft) ground wire
The wrist-strap and wrist-strap cord are no included. They must be ordered separately.
9300-0865 Ground-wire, 4.6 m (15 ft)
9300-0980 Wrist-strap cord, 1.5 m (5 ft)
9300-1367
Wrist-strap, color black, stainless steel, without cord, has four adjustable links and a
7 mm post-type connection.
9300-1308 ESD heel-strap (reusable 6 to 12 months)
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