Filter
Top Products
Maintenance
VITS100 NTSC VITS Inserter Instruction Manual
7–7
Table 7–2: Test Jumpers (Cont.)
Function
Factory
Setting
DescriptionJumper #
V Sync J56 Pins 1–2: Used by VITS 200.
Pins 2–3: VITS 100.
2–3
Blanking J57 Pins 1–2: Used by VITS 200.
Pins 2–3: VITS 100.
2–3
Cleaning and Inspection
Preventive maintenance consists of cleaning and visual inspection. The schedule
depends on the severity of the operating environment. Under average conditions,
perform preventive maintenance every 2000 hours of operation; do it more
frequently if you operate the VITS inserter in an especially dusty or humid
environment.
Clean the entire VITS inserter often enough to prevent dust and dirt from
accumulating. Dirt or dust buildup can act as a thermal insulating blanket that
prevents effective heat dissipation; it can also provide high-resistance electrical
leakage paths between conductors or components in a humid environment.
Exterior. Wipe the outside surfaces occasionally with a damp soft cloth. Do not
use commercial cleaners that can discolor or damage the finish.
Check all air vents regularly to ensure that dust buildup does not impede the
flow of cooling air.
WARNING. To avoid any potential of electrical shock, disconnect power before
removing the instrument cover.
Interior. Interior cleaning is not recommended, but if necessary, use low-velocity,
dry air to blow away dust or lint. If air alone does not remove all of the dust and
lint, use a soft brush to complete the task. Exercise extreme care not to disturb
components on the circuit board during cleaning.
CAUTION. This instrument contains static sensitive devices that can be damaged
by static discharge. Please read Static Sensitive Components, on page 7–2,
before attempting to clean the interior of the VITS inserter.
Cleaning