100V LINE OPERATION
When using the
T Series
with ‘line’ transformers, it is recommended that the frequency response is altered to
prevent saturation of the transformer core with large signals. This could trigger a fault condition since it would be
seen by the amplifier protection circuit as a short circuit on the output.
The CT 160 should be fitted with a suitable cross-over card set to roll off the LF response to be -3dB @ 63Hz.
The DT 450 can also be fitted with a cross-over card but they also have single filters built-in for this purpose. There
are 4 black jumper links marked as HPF and when links are removed the frequency response is modified for 100V line
operation.
For normal operation, all 4 links should be fitted.
MAINTENANCE
-
(ENSURE THAT ELECTRICAL POWER TO THE UNIT IS DISCONNECTED BEFORE
CARRYING OUT ANY MAINTENANCE.)
The filter behind the air intake apertures on the front of
T Series
amplifiers should be cleaned or replaced
periodically, e.g. 12-24 months. (Filters in amplifiers located in more 'dirty' atmospheres may require more frequent
maintenance). The filter should be 'dry' cleaned, using a vacuum cleaner preferably. Running the unit without a filter
is not recommended unless it is within a 'clean room'. Replacement filter material is available.
No other regular maintenance is required.
If you have any doubt about carrying out this procedure, refer to a service engineer or contact your dealer.
IF YOUR AMPLIFIER DEVELOPS A FAULT, PLEASE REFER TO YOUR SUPPLIER FOR SERVICE AND TECHNICAL SUPPORT.
DO NOT ATTEMPT TO REPAIR THE FAULT YOURSELF AS THIS WILL INVALIDATE THE WARRANTY.
