Constellation Audio Perseus Phono Preamplifier - Manual (Page 18)

18
Maintenance
The Perseus requires no regular maintenance. If the phono preamp’s surface becomes dusty, simply
wipe it off with a soft dry cloth. Do not spray cleaners on the surface.
To clean fingerprints from the surface of the Perseus, spray a small amount of mild window cleaner
such as Windex onto a soft dry cloth, then use the cloth to remove the fingerprints. Do not spray the
cleaner directly onto the preamplifier.
Troubleshooting
Unit will not turn on
1. Try the following steps in order. After you perform each step, touch the Standby button on the front
of the unit and wait a few seconds to see if the touchscreen illuminates. If any one of the steps
restores the power (i.e., allows the Standby button to turn the unit on), there is no need to continue to
the next steps.
A. Check power cable connections between the wall and the Perseus's power supply. Push the wall
plug and the connector at the power supply in firmly.
B. Check power cables between Perseus and power supply. DO NOT pull out these cables while the
power supply is on.
C. Make sure the master power switch on the rear of the power supply is turned on.
D. If the Perseus is plugged into an AC line conditioner, make sure the line conditioner is turned
on.
F. Flip the master power switch off and on again. This will reset the Perseus's internal circuit
breaker.
G. Check the circuit breaker for the AC circuit that the Perseus is plugged into. If the breaker is
tripped, flip it back on. If it will not turn on, there is likely a short circuit somewhere in the lines
or in a device connected to this AC circuit. Check the power cords for your components to make
sure none have been damaged.
H. If none of these conditions restores power, it is possible one of the Perseus's internal fuses is
blown. Do not attempt to change the fuse yourself—the Perseus requires the use of special high-
voltage fuses that are not commonly available. Contact your Constellation Audio dealer for
service.
Unit is on but no sound is produced
1. Try the following steps in order. If any one of the steps restores the sound, there is no need to
continue to the next steps.
A. Check you are on the correct input. Cycle through available inputs using the front touchscreen
controls. Remember that MC-1 and MC-3 are for XLR inputs, and MC-2 and MC-4 are for RCA
inputs.
B. Check that the turntable is on and that the stylus is contacting the surface of the record.
C. Check the speaker icon in the lower right corner of the touchscreen. If there is an X next to the
icon, the unit is in mute mode. Press the Mute button directly beneath the speaker icon to restore
the sound.
D. If one of the MC inputs is selected, push the Setup button under the LCD display, then push the
MC Load button on the LCD screen. If the resistive load is set to 000, turn the back-panel MC load
adjustment knobs to bring the loading up to the recommended resistance in ohms for your
cartridge.
E. Check the connections between the turntable and the Perseus, and between the Perseus and
the preamp. If a cable is disconnected, reconnect it. If this does not restore sound, try