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Fan Filter Maintenance
The V22 is factory equipped with a fan filter mounted on the air-intake grill located on the amplifier' s
front panel. Regular cleaning of this filter will increase the amplifier' s long-term reliability. The filter
should be removed and washed at the first sign of visible clogging. This will typically occur every
four to six weeks depending on use and environment. Replacement filters are inexpensive and can
be ordered through VTC dealers. The foam filter should be removed if a regular inspection sched-
ule is not going to be followed. The amplifier can operate without the filter in place, but a qualified
service technician should clean the amplifier internally when dust is visible on the heatsink fins.
Clip LEDs
The CLIP LEDs on the front panel will visibly indicate any signal excursion beyond the dynamic
headroom of the amplifier.
Reliability
The V22 is designed and manufactured by VTC Pro Audio. Each unit undergoes a thorough,
temperature cycled burn-in period, and each circuit is tested by both manual and sophisticated
computer controlled equipment which is capable of identifying any deviation from the design
center parameters. The design of the V22 is conservative with respect to the power handling
capabilities of the output transistors. The design guarantees that thermal stress not transistor
secondary breakdown will set the limits of operation, while the computer optimized heat dissipa-
tion system insures that excessive thermal stress will not occur. VTC's reputation as a manufac-
turer of reliable equipment will be further enhanced by the V22.
but also when high headroom and low distortion are needed to fully reproduce the dynamic
range and clarity of today's CD recordings. It is built to survive grueling road conditions and
constant 2-ohm operation. Its reliability in a fixed installation running 4 or 8-ohm studio moni-
tors is without parallel.
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Note: In an unusually dusty location, without regular filter inspections, removing the
foam filter can extend the operating time before thermal shutdown could occur. At
that time, the internal heatsinks should be cleaned thoroughly
AIR FILTER REPLACEMENT and MAINTENANCE DIAGRAM
The V22 is not only suitable for use in both heavy duty touring sound reinforcement systems
VTC#8380
Foam Filter
VTC#8807
Mounting Screws
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