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, EN 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
Signal to Noise Ratio: 65dB (Bypass mode)
VIDEO SECTION:
Input ( Sensitivity/ Impedance
Crosstalk @3.58MHz: 40dB
AM TUNER SECTION:
Frequency Response: 80Hz – 2kHz
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
Quieting: 24dBu
Signal to Noise: 60dB(stereo) / 65dB(mono)
Image Ratio: 40dB
IF Rejection: 50dB
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