Rotel RB-1080 owner manual Troubleshooting, Specifications

RB-1080 Stereo Power Amplifier

Troubleshooting

Most difficulties in audio systems are the re- sult of poor or wrong connections, or improper control settings. If you encounter problems, isolate the area of the difficulty, check the con- trol settings, determine the cause of the fault and make the necessary changes. If you are unable to get sound from the RB-1080, refer to the suggestions for the following conditions:

Front Panel Power Indicator Is Not Lit

No main power to the RB-1080. Check the front panel power switch. Make sure that it is set to the on position. Check AC power con- nections at the amplifier and the AC outlet.

Fuse Replacement

If everything checks out correctly and you still cannot get the amplifier to turn on, check for a blown fuse. Disconnect the AC from the wall and remove the fuse holder on the back panel. If the fuse is blown, replace with a new fuse and try again.

Note: Make sure that the power cord is disconnected from the wall before checking or replacing the fuse. Replace only with the identical size and type fuse (10 amp AGC).

8

No Sound

If the amp is getting AC power, but is pro- ducing no sound, check the Protection indi- cator on the front panel. If it is lit, see below. If not, check all of your connections and control settings on associated components. Check the input selector switch on the RB-1080 back panel to be sure that its setting matches the type of input you are using.

Protection Indicator Is Lit

The front panel indicator lights when the RB-1080 protection circuits have shut off the amplifier. Typically, this occurs only when the ventilation openings are blocked, when there is faulty speaker wiring, or after a period of extreme use. Turn off the system and wait for the amp to cool. Then push the front panel power switch in and out to reset the protec- tion devices. If the problem is not corrected or reoccurs, there is a problem with the sys- tem or the amplifier itself.

Specifications

Continuous Power Output (20-20 kHz, < 0.03%) Total Harmonic Distortion (20Hz-20kHz, 8 ohms) Intermodulation Distortion (60 Hz : 7 kHz, 4:1)

Frequency Response (+0.5 dB, -3 dB) Damping Factor (20-20,000 Hz, 8 ohms) Speaker Impedance

Signal to Noise Ratio (IHF A network) Input Impedance/Sensitivity Power Requirements

Power Consumption

Dimensions (W x H x D)

Weight (net)

All specifications are accurate at the time of printing.

Rotel reserves the right to make improvements without notice.

200 watts/ch into 8 ohms

<0.03%

<0.03% 15Hz-100kHz 1000

4 ohms minimum

116 dB

32 k Ohms/1.5volt

115 Volts, 60 Hz (U.S. version)

230 Volts, 50 Hz (European version)

5500 Watts

430 x 121 x 385 mm

173/8 x 43/4 x 153/16 in

15.5 kg, 34.1 lb.