Joyo JT-305 User Manual

eJtlYu
WARNING
Location
Using the
unit in the following
iGtions €n Eu[ | a
malfunctior
. ln direct sunlight
. Localions
of extreme temperature
or humidii}
. Excessively
dusty or dirty
lGtions
. Locations
of excessive
vibmtion
. Close
to magnetic fields
Power supply
Please @nnectthe
designatedAC adapterto an
AC
outlet
of
the ffiectyoltage.
Do not
mnnect
il io
an
AC outlet of
yoltage
other than
that for
which
your
unit
is intended.
lnterrerene rith other
electtical devices
Radios
and televisions
placed
nearby may experience reception interference.
Operate
this
unit at a suilable distance fiom radios and
televisions.
-
Handling
'
To avoid
breakage, do not apply
excessive force to the switches
orcontrols.
Care
lf the exterior becomes
dirty, wipe it with
a
clean, dry cloth.
Oo not use
liquid cleaners
such
as benzene or
thinner, or cleaning compounds or
flammable
polishes.
Keep this manual
After reading this
manual,
please
keep
it for later reference.
Keeping foreign matter out of
your
equipment
Never sel any container with liquid
in it near this equipmenl.
lf liquid
gets
into the
equipment, it could cause a,breakdown,
fire,
or electrical
shock.
Be careful
not
to
let metal objects
get
into
the equipment.
lfsomething
does
slip
into the
equipment,
unplug the AC adapter from
the wall
outlet.
Then contaci
your
nearest
dealer
or lhe store
where
the equipment
was
purchased.
Regarding
disposal
Oonotdisposeolthisproductalongwithyourhouseholdlrash.Bydisposingofthisproduct
correctly,
you
can avoid environmental
harm
or health
risk. The
correct
method
of disposal
will depend
on
your
locality, so
please
contact
the appropriate
Iocal authorities
for details.
lmportanl
notico io customers
This
product
has been manufactured
according to strict specifications and
voltage
requirements
that are applicable
in the country in which
it is intended
that
this
product
should
be used. lf
you
have
purchased
this
product
via the
internet,
through
mail order,
and/or
via a telephone
sale,
you
must
verify
that this
product
is intended
to be used
in the
country
in
which
you
reside.
WARNING:
Use of
this
product
in any @untry other than that
for
which
it is intended
could
bedangerousandcouldinvalidateth6trfenllfacturedsgrdistributor'swarranty.,
Please also
retain
you
r receipt as
proof
of
purchase
othemise
your
product may be
disqualified
from the manufacturer's or distributor's warrahty.
[I
.
PART,NAMES
ANDiTUNCTI]g}iI.S
*3
^-1---
1. Tuner ON/OFF switch
2. Tuner ON/OFF LED indicator
3.
lNPUTjack
(mono)
4. True BYPASS
OUTPUTjack
(mono)
5.
Note name Display
6. Tuning Guide LED
11109 8
tlil
7. Tuning
LED
Meter
8.
DC
9V lN Jack
9.
DC
9V OUT
Jack
10. Display Button
11 .
CALIB Button
12. Battery
Compartment
o[----l@
9r-----l9

Joyo JT-305 Specifications

General

Brand	Joyo
Model	JT-305
Category	Tuner
Language	English

Summary

Safety and Warnings

Location Precautions

Advises against using the unit in direct sunlight, extreme temperatures, dusty locations, or near magnetic fields.

Power Supply Requirements

Instructs to use the designated AC adapter at the correct voltage and avoid incorrect outlets.

Electrical Interference

Warns about potential interference with radios and televisions; recommends operating at a distance.

Handling and Care

Advises against applying excessive force and recommends cleaning with a dry cloth, avoiding liquid cleaners.

Foreign Matter Prevention

Warns against placing liquids or metal objects near the unit and advises unplugging if foreign matter enters.

Product Disposal

Advises proper disposal according to local authorities to avoid environmental harm.

Customer Notice

Highlights the need to verify product use in the country of residence for safety and warranty validity.

Part Identification and Functions

Controls and Indicators Overview

Identifies key components including switches, LEDs, jacks, displays, buttons, and battery compartment.

Connections and Setup

Connection Guidelines

Provides instructions for connecting instruments, effect pedals, and power sources, emphasizing turning off devices first.

Input and Bypass Jacks

Explains connecting instruments to the INPUT jack and effect pedals to the BYPASS jack.

DC Power Connections

Details using AC adapters for power and supplying power to other pedals via the DC 9V OUT jack.

Operation and Features

Battery Installation

Guides users on how to open the battery cover, connect, and install a 9V battery correctly.

Tuner Operation Mode

Explains how to activate the tuner, its silent tuning capability, and how to turn it off.

Bypass Functionality

Describes how the bypass function is activated and restored, noting the true bypass circuit.

Frequency Adjustment

Details how to adjust the calibration setting (A4 frequency) using the CALIB button.

Display Mode Selection

Explains how to cycle through and select different display modes using the DISPLAY button.

Factory Defaults Reset

Provides instructions on how to restore the tuner's calibration and display mode to factory settings.

Specifications and Accessories

Technical Specifications

Lists key technical details including tuning range, A4 frequency, accuracy, power, input impedance, and dimensions.

Included Accessories

Lists the items included with the product, such as the manual and a 9V battery.