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Care and Maintenance
Troubleshooting Tips
Receiver/Tuner Operation
STEREO indicator is off.
• Adjust the antenna.
The signal is Mono. Severe hum or noise.
• The signal is too weak. Connect an external anten-
na.
Remote Control Operation
The remote control does not operate the unit.
• Another function mode is selected on the remote.
Press the correct Source Button.
• No batteries installed. (included with your system)
Install the batteries before attempting to operate the
remote. Be sure to match the + and - ends of each
battery to the symbols shown in the remote battery
compartment.
• The batteries are weak. Replace all batteries.
• The remote is not pointed at the remote control
sensor on the main unit or there is an obstacle
between the remote and the main unit.
• The remote control is too far from the main unit,
move closer.
General
No audio.
• Make sure the speakers are connected.
• Check the input connections.
• Check the power cord connections.
• Make sure the MUTE indicator on the front panel is
off.
• Make sure the digital setting (optical, coaxial or
analog) is correct.
No audio from one channel.
• Check the speaker level setting.
• Check the speaker wire or cable connections.
Noise occurs when the TV is turned on.
• The TV is too close to the audio system.
Specific instruments sound displaced.
• Check the connections between the receiver and
the speakers if the sound does not match the video.
• Press the Source Button for the video source.
Cleaning the Exterior
• Disconnect the system from AC power before clean-
ing the exterior of the system with a soft dust cloth,
or with a slightly damp leather chamois. Never use
strong solvents.
Equipment Specifications RT2280/RT2250:
AMPLIFIER SECTION:
All 5 channels:
RT2280: each 80W at 8 ohm. 0.9% THD @1 kHz
RT2250: each 50W at 8 ohm. 0.9% THD @1 kHz
Subwoofer channel: 100w at 8Ω (RT2280/RT2250 only)
Muting Attenuation: 65dB
Frequency Response: 40Hz to 20kHz +/-3dB
Signal to Noise Ratio: 65dB (Bypass mode)
VIDEO SECTION:
Input ( Sensitivity/ Impedance ):1Vp-p/ 75ohm
Output (Level/ Impedance): 1Vp-p/ 75 ohm
Frequency Response: 10Hz to 6MHz at +/- 3dB
Signal to noise ratio: 40dB
Crosstalk @3.58MHz: 40dB
AM TUNER SECTION:
Frequency Response: 80Hz – 2kHz +/-6dB
Usable Sensitivity: 800uV/m @ S/N 20dB
Signal to Noise: 38dB
Image Ratio: 27dB @ 1000kHz
IF Rejection: 35dB
FM TUNER SECTION:
Frequency Response: 40Hz – 15kHz +/-3dB
Quieting: 24dBu
Signal to Noise: 60dB(stereo) / 65dB(mono)
Image Ratio: 40dB
IF Rejection: 50dB