Question about RCA RT2390 System
It can be the input is bringing the HF noise to falsely trigger a high currrent output that incidentley cuts off the amp to protect.
If after removing the input the amp does not hum or cut off when the volume is turned then we must check on this unit.
However even after removing the fault appears, check the load of the speakers connected. Repair /replace if bad.
If not there is a power filter fault that is issuing the noise to the circuits. check for poorr value of filter capacitors in the main supply, the regulators to the pre amp or the filter capacitors to the preamp.
If the fault disappeared with the input source being removed , check the power supply of this unit.
Posted on Aug 29, 2010
Shutdown will be caused by overvoltage on the input or shortcircuit/low resistance on the output. Remove the speakers one by one at the same volume level. If the problem persists with all the speakers removed the unit is faulty and needs to be sent in for repair.Did you change or reconfigure/rewire the outputs/speakers recently?
If the resistance(impedance) on the output is too low it will cause the unit to shut down. Wiring additional speakers incorrectly will cause this. If a speakers' voice coil is starting to fail you will get the same result. Remove one speaker at a time until the unit no longer shuts down in order to identify the channel that is causing the problem.
Posted on Aug 28, 2010
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Posted on Jan 02, 2017
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• Turn down the volume.
• Lower the 40 Hz and 125 Hz equalizer levels in the Manual MCACC setup on page 34.
• Try switching on the digital safety feature (put the receiver into standby, hold down the SYSTEM SETUP button on the front panel and press STANDBY/ON to switch between SAFETY ON and SAFETY OFF
. If the power switches off even with SAFETY ON selected, turn down the volume.
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