Table 2: Internal inspection checklist
Item Inspect for Repair action
Circuit boards Loose, broken, or corroded
solder connections. Burned
circuit boards. Burned, broken,
or cracked circuit-run plating.
Remove and replace damaged
circuit board.
Resistors Burned, cracked, broken,
blistered condition.
Capacitors Damaged or leaking cases.
Corroded solder on leads or
terminals.
Wiring and cables Loose plugs or connectors.
Burned, broken, or frayed
wiring.
Firmly seat connectors.
Replace defective cables.
Chassis Dents, deformations, and
damaged hardware.
Straighten, repair, or replace
defective hardware.
Lubrication
There is no periodic lubrication required for this instrument.
Module removal
WARNING.
Only qualified personnel should perform service procedures. Before
performing this or any other procedure in this manual, read the General Safety
Summary and Service Safety Summary located at the beginning of this manual.
Also, to prevent possible injury to service personnel or damage to electrical
components, read Preventing ESD. (See Preventing ESD on page 9.)
To remove an assembly, refer to the exploded view diagrams and parts lists. (See
The replaceable parts list on page 23.)
If you are disassembling the instrument for cleaning, refer to the Inspection and
Cleaning procedure for instructions. (See Inspection and cleaning on page 10)
WARNING. Disconnect the power cord from the line voltage source. Failure to do
so could cause serious injury or death.
Maintenance
TBS2000B Series Service Manual 13
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