User manual NAD C 245BEE

[. . . ] ® Owner’s Manual Four Channel Power Amplifier C 245BEE РУССКИЙ SVENSKA NEDERLANDS DEUTSCH ITALIANO ESPAÑOL FRANÇAIS ENGLISH IMPORTANT SAFETY INSTRUCTIONS ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ Save these instructions for later use. 1 Read instructions - All the safety and operating instructions should be read before the product is operated. 2 Retain instructions - The safety and operating instructions should be retained for future reference. 3 Heed Warnings - All warnings on the product and in the operating instructions should be adhered to. [. . . ] The Standby LED indicator embedded around the bezel of the STANDBY button will illuminate amber. Have the unit inspected by a qualified service technician before attempting to use it again. Do not use solutions containing benzol or other volatile agents.  РУССКИЙ SVENSKA NEDERLANDS DEUTSCH NOTES ON INSTALLATION ITALIANO ESPAÑOL FRANÇAIS ENGLISH IDENTIFICATION OF CONTROLS FRONT PANEL ENGLISH FRANÇAIS 1 2 3 4 ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ 1 STANDBY BUTTON: Press this button to switch ON the C 245BEE. Pressing the STANDBY button again turns the unit back to standby mode. IMPORTANT NOTICE The rear panel POWER switch must be in the ON position for the STANDBY button to activate. 2 STANDBY LED: This indicator will light up amber when the C 245BEE is in standby state. When the C 245BEE is at ON state, this indicator will illuminate blue. In cases of serious abuse of the C 245BEE, such as excessively low loudspeaker impedance and short circuit, the C 245BEE will engage its Protection circuitry, indicated by the Standby LED turning from blue to red and the sound being muted. In such a case, turn the C 245BEE OFF by the rear panel POWER switch, wait for it to cool down and/or check the speaker connections, making sure the overall loudspeaker impedance doesn’t go below 4 ohms or 8 ohms in Bridge mode. Once the cause for the protection circuitry to engage has been removed, switch ON the rear POWER switch and the Standby button to resume normal operation. 3 CHANNEL A: Press to select the input source connected at the rear panel CHANNEL A input sockets. 4 CHANNEL B: Press to select the input source connected at the rear panel CHANNEL B input sockets. Both CHANNEL A and CHANNEL B can be activated at the same time if an input source is connected to their respective rear panel channel input sockets.  IDENTIFICATION OF CONTROLS REAR PANEL 3 4 1 2 5 6 7 8 9 10 11 ATTENTION! Please make sure that the C 245BEE is powered OFF or unplugged before making any connections. It is also advisable to power-down or unplug all associated components while making or breaking any signal or AC power connections. 1 CHANNEL B SPEAKERS (applicable to CHANNEL B only): Connect the right speaker to the CHANNEL B SPEAKERS terminals marked “R +” and “R-” ensuring that the “R+” is connected to the “+” terminal on your loudspeaker and the “R-” is connected to the loudspeaker’s “-” terminal. Connect the terminals marked “L+” and “L-” to the left speaker in the same way. In Bridge Mode, connect the single speaker to the terminals marked “R +” and “L+” ensuring that the “L+” is connected to the “+” terminal on your loudspeaker and the “R+” is connected to the loudspeaker’s “-” terminal. 2 BRIDGE MODE (applicable to CHANNEL B only): Set the BRIDGE MODE switch to the “ON” position and connect the speaker to the terminals marked “L +” and “R+” ensuring that the “L+” is connected to the “+” terminal of your loudspeaker and the “R+” is connected to the loudspeaker’s “ - ” terminal. 3 CHANNEL B (IN/OUT): Connect the output from a pre-amplifier or processor, such as a surround-sound decoder, to this set of CHANNEL B IN sockets. Use a twin RCA-to-RCA lead to connect the left and right “Audio Output” of the preamplifier or processor to these CHANNEL B input sockets. The same level of input signal at the CHANNEL B IN sockets is available at CHANNEL B OUT sockets thereby allowing the same signal to be shared or passed on to another amplifier. Always turn OFF the C 245BEE and other components in the system before connecting or disconnecting anything to the CHANNEL B IN sockets. 4 CHANNEL A (IN/OUT): Connect the output from a pre-amplifier or processor, such as a surround-sound decoder, to this set of CHANNEL A IN sockets. [. . . ] In practice, you probably would use only one of the methods once your C 245BEE is installed. ATO LOGIC CHART CONDITION POWER switch : OFF +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : OFF +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : OFF +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : OFF +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : OFF +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : OFF +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: OFF POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: AUTO POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: AUTO POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: AUTO POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: AUTO POWER switch : ON +12V TRIGGER IN/INPUT SENSE Sense: AUTO POWER SWITCH Power ON ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Power OFF ✓ ✓ ✓ ✓ ✓ ✓ STANDBY BUTTON Standby Mode (amber) ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Switch ON (blue) ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ +12V TRIGGER IN (using 3. 5mm mini-jack plug) Mini-jack +12V 0V unplugged ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ INPUT SENSE Input signal >20mV ✓ ✓ ✓ Input signal <20mV ✓ - ✓ NOTE If the +12V TRIGGER IN/INPUT SENSE switch is set to OFF, the presence or absence of +12V trigger input or any input signal at the CHANNEL A IN or CHANNEL B IN sockets will not have any effect on the C 245BEE, effectively defeating both features.  РУССКИЙ SVENSKA NEDERLANDS DEUTSCH ✓ ITALIANO ESPAÑOL FRANÇAIS ENGLISH REFERENCE TROUBLESHOOTING ENGLISH FRANÇAIS ESPAÑOL ITALIANO No sound one channel. C 245BEE always at standby mode; cannot be switched ON using the front panel STANDBY button. • +12V TRIGGER IN/INPUT SENSE switch set to “AUTO” position and a jack is plugged-in at +12V Trigger IN socket or an input signal is applied at the rear panel CHANNEL A IN or CHANNEL B IN sockets. [. . . ]