Rotel A12 - Troubleshooting; Power Indicator Is Not Illuminated; Fuse Replacement; No Sound

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A12 Stereo Integrated Amplier
USB, PC-USB, Optical 1, Optical 2, Coax 1, Coax 2, or Bluetooth. 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 MIN, FIXED 01-95, FIXED MAX.
• AUX1 VOL: VARIABLE (disabled) is factory default.
• AUX2 VOL: VARIABLE (disabled) is factory default.
• USB VOL: VARIABLE (disabled) is factory default.
• PC-USB VOL: VARIABLE (disabled) is factory default.
• OPT1 VOL: VARIABLE (disabled) is factory default.
• OPT2 VOL: VARIABLE (disabled) is factory default.
• COAX1 VOL: VARIABLE (disabled) is factory default.
• COAX2 VOL: VARIABLE (disabled) is factory default.
• BTOOTH VOL: VARIABLE (disabled) is factory default.
NOTE: The Volume knob on the front panel and Volume +/- buttons
on the IR remote are disabled when the volume is Fixed. To disable this
feature set the Fixed Volume level to “Variable”.
• PC-USB CLASS: Changes 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 congured for USB Audio Class 1.0. Please consult
your computer operating system for details.
• S/W VERSION: This shows the current software version loaded into the
amplifier.
• PC-USB VERSION: This shows current loaded software version for PC-USB
processor.
• FACTORY DEFAULT: This sets the unit back to the original state as when
it left the factory. Press the + button on the front panel or the ENT button
on the remote control to enter factory reset setting. And then press the +
button or ENT again to begin reset, or press the MENU button to cancel.
NOTE: All previously configured options will be erased and reset to
the factory default settings.
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 unit,
refer to the suggestions for the following conditions:
Power Indicator Is Not Illuminated
The Power Indicator and the basic items in the Display window should be
illuminated whenever the unit is plugged into the wall power outlet and the
Power button is pushed in. If it does not illuminated, 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 illuminated when the unit 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 amplifier inputs are connected properly.
Be sure the Input Source is set to the proper input. Check the wiring between
the amplifier and the speakers.
Playable Audio Formats
USB Apple (iPhone, iPod, iPad)
Format Notes
Any supported file
loaded to Apple device.
Any supported file loaded to Apple device. Phone may
resample depending on stored format. May exclude
Apps designed to play formats not originally supported
by the sending device.
APTX Bluetooth
Format Notes
Any format supported
by the sending device.
May exclude Apps designed to play formats not originally
supported by the sending device.
PC-USB
Format Notes
Format determined
by the Media Player/
Server software that
you use.
Any supported format by the PC software
PCM Audio:
44.1k, 48k, 88.2k, 96k, 176.4k, 192k
(16 bit and 24 bit)
Coax/Optical
Format Notes
SPDIF LPCM
44.1k, 48k, 88.2k, 96k, 176.4k, 192k
16 bit, 24 bit
Cannot Connect via Bluetooth
If you cannot pair your Bluetooth enabled device to the A12, delete the
memory of the previous connection on your device. On your device this is
often listed as “Forget this Device”. Then try to make the connection again.