User manual BELL AUDIO SCA-2MR

[. . . ] Keep airflow free from any kind over covers. The remote control mode works in parallel to a , fade in` function to avoid harsh level offsets. All necessary parameters are to be selected in [Command Mode, page 1]. [. . . ] Protect - Mode will deactivate the following features: [View Mode , Page 3] [View Mode , Page 4] [View Mode , Page 5] [Command Mode , Page 2] [Command Mode , Page 3] When the total speaker impedance for one channel is below 4, set the impedance switch to 2. Do not operate the impedance mode switch while the power amp is in use. This test will check the the components which are connected to the speaker outputs. Within the programmed frequency window and at the preselected power output [Command Mode , Page 2/3], the total impedance of the connected speaker systems plus cables will be measured. The frequency sweep within the selected window will be heard through the connected speakers. Warning - Excessive output power may cause physical damage The test result willbe shown for each Channel: If in [Command Mode , Page 4] , , Auto Power OFF" has been activated, and if the system detects any short circuit or excessive low impedance at one of the speaker outputs, (R <<2 in 2 Mode or R << 4 im 4 Mode), the power amplifier will switch to , , Standby Mode" (power supply off) in order to protect it against further overload or damage. In order to deactivate , , Standby Mode", the power must be switched off - and back to on. In any case, the cause of setting the power amp to , Standby Mode` must be eliminated. Now the window to deactivate , , Power Control" and , , Sine TEST" will open. After Mains off / on - even if the original problem (short circuit at speaker output) has not been eliminated. When , , Sine Wave Test" is activated, , , Power Control" should not be deactivated!B have a damping below 30dB, [View Mode , Page 1] the , , Auto Fade In" function will now be activated. This feature will softly fade in the output level of the power amplifier in order to avoid any harsh or unexpected loudspeaker signals. 5) In conjunction with the , , Command" switch, the displays will now show the functions of the , , Command"- or , , View" mode. View Mode This function is activated by pushing the , , Command" switch (green LED off) when View Mode has been activated. Parameters in Display Remote address: Baud Rate: Remote Level: Remote Control Address of one individual power amplifier transmission speed of the RS485 port Actual Input daming set for CH. [. . . ] Output power reading refers to 4 load for SCA-2MR. In order to avoid overlapping frequencies, the start frequency may not be set to any value above the stop frequency. In order to avoid overlapping frequencies, the stop frequency may not be set to any value below the start frequency. [. . . ]