Operation Manual

12 13
RA‑1570 Stereo Integrated Amplifier
Troubleshooting
Most difficulties in audio systems are the result of incorrect connections,
or improper control settings. If you encounter problems, isolate the area
of the difficulty, check the control settings, determine the cause of the
fault and make the necessary changes. If you are unable to get sound
from the RA‑1570, refer to the suggestions for the following conditions:
Power Indicator Is Not Illuminated
The Power Indicator ring around the power button and the basic items
in the Display window should be illuminated whenever the RA-1570 is
plugged into the wall power outlet and the POWER switch is pushed in.
If it does not light, test the power outlet with another electrical device,
such as a lamp. Be sure the power outlet being used is not controlled by
a switch that has been turned off.
Fuse Replacement
If another electrical device works when plugged into the power outlet,
but the Power Indicator still will not light when the RA-1570 is plugged
into the wall outlet, it indicates that the internal power fuse may have
blown. If you believe this has happened, contact your authorized Rotel
dealer to get the fuse replaced.
No Sound
Check the signal source to see if it is functioning properly. Make sure
the cables from the signal source to the RA-1570 inputs are connected
properly. Check the wiring between the RA-1570 and the speakers.
(For more information on Tone Control refer to the Tone Control Bypass,
Bass and Treble control sections)
NOTE: These settings are stored permanently even after the RA-
1570 is powered off.
• BALANCE: Change left/right balance (For more information on
Balance sections)
NOTE: These settings are stored permanently even after the RA-
1570 is powered off.
• DIMMER: Dims the display in 7 steps. This can also be temporary
changed using the DIM L button on the remote control.
NOTE: These settings are stored permanently even after the RA-
1570 is powered off.
• ROTEL LINK RCD, selects how the CD player is connected to the amplier,
either CD (analog), COAX1 or COAX2. CD is the factory default.
• POWER ON MAX VOLUME: This sets the maximum volume level when
the unit is turned ON. “45” is the factory default.
• Fixed Gain: Congures a Fixed Volume level for a specied input. To
enable this feature press the +/- keys to select the desired fixed volume
level for Aux 1, Coax 1, Optical 1, PC-USB or USB. When enabled and
the input with a Fixed Volume is selected, the Volume level will immediately
be set to the specified level.
Valid settings include: VARIABLE, FIXED 1‑95, FIXED MAX.
NOTE: The Volume knob on the front panel and Volume +/- keys
on the IR remote are disabled when the volume is Fixed. To disable
this feature set the Fixed Volume level to “Variable”.
• AUX1 VOL: VARIABLE (disabled) is factory default.
• COAX1 VOL: VARIABLE (disabled) is factory default.
• OPT1 VOL: VARIABLE (disabled) is factory default.
• PC‑USB VOL: VARIABLE (disabled) is factory default.
• USB VOL: VARIABLE (disabled) is factory default.
• PC‑USB AUDIO CLASS: Change supported PC‑USB Audio Class of
the attached device.
NOTE: Some computers attached to the PC-USB do not support USB
Audio Class 2.0 and do not support 24/192 audio playback. If needed
the PC-USB can be configured for USB Audio Class 1.0. Please consult
your computer operating system for details.
• Software Version : This shows the current software version loaded into
the amplifier.
• FACTORY DEFAULT: This sets the unit back to the original state as when
it left the factory. Press the + key on the front panel or Right key on the
remote control to select <YES> then press the “ENTER” key on the front
panel or “ENT” on the remote control.