Ltd. User Manual Stereo Power Amplifier

Roksan Audio ltd Caspian Power Amplifier User Manual
CLASSIFICATION: General Use Version: 3.27
All specifications are liable to change without notice. E&OE Page 7 of 8 ENGLISH
MANUAL OPERATION
Press the MANUAL Button (1). The MANUAL Indicator Light will glow RED. The amplifier will now be operational.
To return the amplifier to Standby, press MANUAL Button again. The MANUAL Indicator Light will glow GREEN.
AUTOMATIC OPERATION
Press the AUTO Button (4). The AUTO Indicator Light will glow RED and the amplifier will be operational. To go
to Auto Standby, press AUTO Button again. The AUTO Indicator Light will glow GREEN.
When the amplifier is in Auto Standby, it will switch itself ON whenever an audio signal is applied to the inputs. If
the amplifier does not receive a signal for approximately five minutes, it will switch itself back to Auto Standby.
With this facility the Caspian Power Amplifier is ideal for Multi-amping or in any application, (e.g. multi-room),
where the amplifier is required to switch ON and OFF with the rest of the system with no loss of functionality.
K
K
N
N
O
O
W
W
Y
Y
O
O
U
U
R
R
C
C
A
A
S
S
P
P
I
I
A
A
N
N
• When you first power up from the Mains Switch on the rear panel, the amplifier runs a self-test and then
enters Standby and the MANUAL Indicator glows GREEN.
• During Standby, the power stage of the amplifier shuts down to reduce power consumption and heat.
• The AUTO and MANUAL Buttons toggle each other ON and OFF. In Auto Mode, pressing the MANUAL
Button will set the amplifier to Manual Standby, and vice versa.
• If the amplifier detects an external fault, such as short-circuit on the loudspeaker leads, the amplifier will go
to Standby. You can only bring the amplifier out of Standby when the fault is cured.
• If the amplifier overheats through overload or lack of ventilation, the Caspian will revert to Standby. When it
has cooled down you will be able to bring it out of Standby.
In the unlikely event of an internal fault such as a power supply fault, the amplifier will go to permanent Standby.
If you suspect that your ROKSAN Caspian Power Amplifier is not operating properly, you should check all the
connections carefully. Pay particular attention to speaker phasing and channel connections. Phono plugs should
be fully inserted- a frequent cause of problems is that Phono plug surrounds do not make proper contact. Below
are some commonly encountered problems with suggestions for possible cure. The list is not exhaustive: If you
have any unresolved problems, please consult your appointed ROKSAN dealer or distributor.
SYMPTOM LIKELY CAUSE SUGGESTED REMEDY
No power AC Mains lead not inserted properly
Unit not switched ON at rear panel
Ensure AC Mains lead is fully inserted
Switch unit ON at rear panel
No output on one or both
channels
Poor speaker imaging, lack
of Bass output
Amplifier in stand-by mode (MANUAL
Indicator Light GREEN)
Missing or bad input signal connection
Incorrect speaker connection
Over heating
Loudspeakers connected out of phase
Press MANUAL Button to set amplifier
in operational mode (MANUAL Light
RED)
Check all input connections
Check speaker output connections on
rear panel
Allow amplifier to cool, increase
ventillation or use at lower volume
Check polarity of speaker connections
(especially important if Multi-wiring,
Multi-Amping)
Hum from speakers Incorrect Grounding Check Mains polarity and grounding on
all connected equipment
TROUBLESHOOTING Caspian Power Amplifier