⑤
Note Display
：
When a single note is input, the name of the nearest note is displayed here.
⑥
DC IN Jack
：
An external power supply (AC adapter) connects here. The STV-1JB
accepts input voltages from 9V DC to 18V DC. Use a voltage regulated power supply
with a center-negative ( ) plug.
⑦
IN Jack
：
This is the audio input jack. Connect your guitar or bass here.
⑧
VZ THRU Switch
：
This switch determines whether the internal VITALIZER circuit is
inserted into the signal path or bypassed. Set the switch to “VZ” to insert the VITALIZER
into the signal path. When set to “THRU” the VITALIZER circuit is bypassed and the unit’s
true bypass circuit is engaged so that the IN signal is connected directly to the OUT jack.
⑨
OUT Jack
：
The OUT (output) jack
connects to the input of your amplifier, mixer, or
similar device. The STV-1JB mute circuit is located immediately before the OUT jack so
that muting always occurs after any effects connected between the SND (send) and
RTN (return) jacks, completely shutting off any residual noise while tuning.
⑩
RTN Jack
：
The RTN (return) jack receives the output from any effect units fed by the
unit’s SND (send) jack.
⑪
DISP Switch
：
The DISP switch is used to change tuner display modes.
(
refer to
“Tuning” -> “Display Modes” for details)
⑫
CALIB Switch
：
The CALIB switch is used to calibrate the tuner.
(
refer to
“Tuning” -> “Calibration” for details)
⑬
SND Jack
：
The SND (send) jack connects to the input of the first or only effect unit in
an effect chain to be connected into the STV-1JB SND/RTN loop.
⑭
DC OUT Jack
：
The voltage from a power supply connected to the DC IN jack is
output via this jack. The DC OUT jack ( ) can be connected to the power input
jack of a separate effect unit. The voltage input at the DC IN jack (9V ~ 18V DC) is
output via the DC OUT jack without modification, so it is important to check the power
input specifications of any secondary device(s) being powered via this jack.
＊The DC OUT jack cannot be used to power a second device when the STV-1JB is
being powered by an internal battery.
CAUTION!
The output voltage from the DC OUT jack cannot be adjusted. The voltage from an external AC
adapter/power supply connected to the DC IN jack is output via the DC OUT jack unchanged. Be sure to
use a power supply that is suitable for any external effect units that are to be powered from the STV-1JB
DC OUT jack. The maximum total power output capacity of the STV-1JB DC OUT jack is 1.5 amps. Be
sure not to exceed this value.
When the DC OUT jack is to be used to power external devices, the AC adapter/power supply
connected to the DC IN jack should have a power output capacity that is approximately twice the total
power consumption of the device(s) to be powered.
Example: If the total power consumption of all devices to be powered is 500mA (500 milliamps), an AC
adapter/power supply that can deliver 1A (1 amp) should be used. The STV-1JB DC OUT circuit features
overcurrent protection*2 that will prevent damage to the connected AC adapter/power supply if a short
or other fault occurs in a cable or device connected to the DC OUT jack. The overcurrent protection
circuit will recover automatically when the fault is corrected.
*2 The overcurrent protection circuit is activated when a continuous output current of greater than 1.5
amps is detected.
About the VITALIZER
The Providence VITALIZER circuit is an active low-impedance converter that makes audio
signals more resistant to noise and prevents signal degradation that can occur when audio
passes through cables and switch contacts. The VITALIZER circuit is most effective when used
with instruments that have passive pickups, but it can help reject spurious noise with active
pickups as well.
