Parasound HALO JC 1+, Руководство пользователя

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Turn On Options Switch
The setting of the rear panel three position Turn On Options switch determines how the JC 1+ turns on
and off. Setting this switch to Audio or 12
V disables the JC 1+’s front panel On-Off button. There are
three turn on options:
Manual:
When the Turn On Options switch is set to Manual the JC 1+
is turned on and off manually only by pressing the On-Off button on its
front panel every time you want to listen to music.
Audio:
When the Turn On Options switch is set to Audio the JC 1+ will
be turned on automatically when an audio signal is present at either of
its Input jacks. After the audio signal ceases the amplifier will remain
on for approximately 8-10 minutes before shutting itself off. This
prevents unintended turn-off during pauses in your music.
Note: The actual turn off delay can vary from unit to unit. This is normal.
12 V Trigger:
When the Turn On Options switch is set to 12 V , the JC
1+ is turned on and off only with an ex9 V to +12 V DC voltage.
When the external 12 volt signal ceases the amp will turn off within a
few seconds. The 12
V turn on trigger circuit is opto-coupled and draws
a mere 5mA.
Turn On Delay Adjustment (all turn on modes)
You can delay the JC 1+ turn on time so it doesn’t turn on at the same instant as your other components (or
other JC 1+s). This avoids AC power turn-on surges and brownouts that might trip power strips or house
wiring circuit breakers. If you’re fortunate enough to own more than two JC 1+s, select a different delay time
for each unit. Turn the delay knob to the desired delay time from 0 seconds (fully counterclockwise) to 12
Seconds (fully clockwise).
Turn On Threshold Adjustment (audio turn on mode only)
This knob sets the audio signal level required for the JC 1+ to automatically turn on when the Turn On
Options switch is set to the Audio position. Fully counter-clockwise is the most sensitive setting and requires
the least audio signal voltage. It is therefore labeled “Quieter.” Fully clockwise requires a higher audio signal
voltage and is therefore labeled “Louder.” In most systems the best results will be with the Turn On Threshold
knob set at or close to the Quieter position. In some situations the JC 1+ might turn itself on if there is
transient noise in your system, even when an audio signal is not present. Similarly, the JC 1+ might never
shut off after the music stops, even after waiting more than 10 minutes. In this case, try rotating the knob
towards the Louder position.
12 V Input Jack
The JC 1+ 12 V input is a 3.5 mm jack (mono). To use the 12 V trigger, insert the trigger wire plug into this
jack and plug the wire’s other end into your preamplifier’s 12 V output jack. For your convenience we have
included a 12 V trigger wire with mono 3.5 mm plugs at both ends. The JC 1+ 12 V trigger circuit draws a
negligible 5 mA.
Note: If your preamplifier’s 12 V trigger output is bare terminals with + and – screws terminal instead of a jack,
you can cut the 3.5 mm plug off one end of the included trigger wire and attach the bare wires to these
terminals. The lead with the white stripe on it corresponds to the plug’s tip and the unmarked lead
corresponds to the sleeve of the plug. The trigger plug tip is + (positive) and its sleeve – (negative).