Operation Manual, RA2400 & RA7300 Power Amplifiers
Page 18
Document # 9301H62800 Ver. 1.00
CARE AND MAINTENANCE
Cleaning
If the RA2400/RA7300 becomes dirty, wipe it with a clean, soft, dry cloth. If necessary, first wipe
the surface with a soft cloth slightly dampened with mild soapy water followed by a fresh cloth
dampened with clean water. Wipe dry immediately with a dry cloth. NEVER use benzene, thinner,
alcohol or any other volatile cleaning agent. Do not use abrasive cleaners, as they will damage the
finish of the metal parts. Avoid spraying insecticide, waxes, polishing agents or any aerosol product
near the unit.
Troubleshooting
Your RA2400/RA7300 is designed for trouble free operation. If you follow the instructions in this
manual you should enjoy many years of high quality listening enjoyment. However, as with any
sophisticated electronic device, there may be occasional problems upon initial installation or during
the life of the unit. Below are some general guidelines to assist you in rectifying minor problems
that may be encountered. If these solutions do not relieve the issue or if the problem persists,
contact Datasat Technical Support for assistance: Email
or (if you are
located in or close to Europe)
.
Protection Circuitry
Your RA2400/RA7300 uses an advanced optically coupled protection circuit that does not require
fuses and is completely isolated from the audio path. In the event that the RA2400/RA7300 senses
a shorted speaker wire the protection circuit will engage shutting down the output. The circuit will
be sampled about every 7 seconds (nominal) and the RA2400/RA7300 output will be cut off as long
as the short exists. The RA2400/RA7300 should begin to operate normally after the shorted
situation is repaired. If RA2400/RA7300 goes into protection mode:
●
First, check all speaker wire connections, both at the speakers themselves and at the speaker
terminals on the back of the RA2400/RA7300.
●
Make certain that none of the strands from any channel touch another channel and that none of
the strands from a "positive" terminal touch those from a "negative" terminal. Even a few stray
wire strands can cause the RA2400/RA7300 to go into the protection mode.
●
After checking all speaker connections, turn the RA2400/RA7300 back on. If it continues to turn
off, check your speakers to verify that they are operating properly.
●
If all other potential sources of trouble check out properly, contact Datasat Technical Support for
further assistance: Email (USA)
or (Europe)
.