Service And Care - Cary Audio Design CAD 211 AE Owner's Manual

SERVICE AND CARE _____________________________________

The chassis may be cleaned with a soft towel and Windex® (or a similar window cleaner). Spray it on the cleaning
cloth to moisten it, not on the component. Do not use solvents or harsh chemicals as they may remove the labels
from the chassis. The frequency and need of cleaning will be governed by operating environmental conditions.
Avoid letting the component become dusty or wet. A 'feather duster' type cleaner will also work well for cleaning
the component.
Replacing Vacuum Tubes
If it becomes necessary to replace the tubes, the same brand as installed new should be used. A complete new
tube kit is available from Cary Audio Design. Although useful tube life varies depending on the nature and degree
of use, under normal home use, the 845 output tubes and the 300B driver tubes should last many years in the
CAD 211. The 6SL7 input tube should last even longer.
NOTE: Any current production or New Old Stock (NOS) types of 845, 6SL7, 6CA7 or 300B tubes will work fine
in the CAD 211 Anniversary Edition amplifier. The voltages are fine for all available types.
WARNING
Make sure the amplifier is unplugged 30 minutes from the AC mains before replacing the
tubes to avoid risk of shock and high heat from the 845 tube.
Factory Service
Careful consideration has been given to the design of this product to keep maintenance problems to a minimum. If
problems arise, refer to the trouble-shooting guide at the end of this manual. If the problem is not easily solved,
we suggest that you contact our Customer Service Department by phone at (919) 355-0010, 1–5 pm Eastern
Standard Time, to describe your problem in detail. Do not return the component to the factory without a Return
Authorization Number (RA) from the Customer Service Department.
Cary Audio Design assumes no responsibility if the transportation company refuses to pay a damage claim due to
your improper packing or lack of insurance should the unit be lost in shipment. We strongly suggest using the
original packing cartons for shipping any Cary Audio Design component.
Non-Warranty Repairs
Cary Audio Design will provide repair service for its products charging on a time and expense basis. At this time,
the standard non warranty service bench fee is $125 with all parts used for repair charged extra. This may change
with time and is not a quote for service. Please call us at 919-355-0010 for more information about out of
warranty service and repair fees.
WARNING
Make no attempt to put the CAD 211 in service outside of the cabinet or with the
cabinet open! Contact with the high voltages found inside the unit can be fatal! Remove
the AC power plug from the wall and allow 30 minutes for the high voltage capacitors to
discharge through bleeder resistors before attempting to change the tubes or to clean
the inside the amplifier.
CAUTION
Never remove or insert the AC plug when the unit is on or the AC power switch is in the
"ON" position. Obstruction of the top portion of the amplifier will result in the tubes
overheating.
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