AVSL TCH300 User Manual
Root Note
Type 1
Type 2
Example
in "C"
C to B in
semitones
Major
C
6
C6 5 C5 7 C7
7-5
C7-5
9
C9
11
C11
13
C13
maj7
Cmaj7
maj9
Cmaj9
Minor
m
Cm
m6
Cm6
m7
Cm7
m7-5
Cm7-5
m9
Cm9
m11
Cm11
Suspended
sus4
Csus4
7sus4
C7sus4
Augmented
Caug
Diminished
Cdim
SPECIFICATIONS
Power
2 x AAA battery (supplied)
Tuning Modes
Chromatic, Guitar, Bass
Chord dictionary
240 different chords
Tuning Range
A0 (27.5Hz) to C8 (4186.0Hz)
A4 frequency
435-445Hz
Tone Generator
A2 - A6
Tuning method
Auto or manual note select
Tuning Stability
±1 cent
Dimensions
110 x 65 x 18mm
Weight
103g (no battery)
Keep unit away from heat source or direct sunlight
Avoid contact with moisture or corrosive materials
Avoid impact or damage through dropping
If operation freezes, remove and replace batteries
Remove batteries if unused for long periods of time
Getting Started
Install the supplied 2 x AAA batteries into the rear
compartment (negative end first)
Place acoustic guitar close to microphone or connect input
from guitar via jack or supplied contact pickup
If required, sound can be output to an earphone by
connecting to the 3.5mm jack on top of the TCH300
For speaker or earphone volume adjustment, rotate the
volume edge control on the right-hand side of the TCH300
In tuner mode, the LCD display shows a virtual dial and the
A4 reference frequency – needle to centre indicates “in-tune”
In chord mode, the display shows root note and chord type.
The chord box shows strings in standard tuning named at the
bottom. A number at the top indicates the fret at which the
chord is applied or a line at the top indicates the top nut.
“X” denotes a string that is not played
1. ON/OFF/Sound
Press ON/OFF/Sound for 2 seconds to turn the unit on or off.
In tuning or chord modes, the unit will shut down
automatically after 5 minutes of inactivity
A short press of this button initiates sound through the
speaker or earphone jack for pitch or chord notes
2. Tuner/Backlight
Press Tuner/Backlight for 2 seconds to turn the backlight off
to save battery or on for use in the dark
A short press of this button toggles through Chromatic, Guitar
and Bass tuning modes, defaulting to Auto-tuning.
3. Note/Chord Root
A short press of Note/Chord Root button toggles through
selected tuning notes in tuning mode
Pressing this button for 2 seconds enters chord mode and
further short presses change the root note
4. Flat/Type 1
In tuner mode, this button applies natural, flat or double-flat
In chord mode, this button changes the main type of chord
5. Pitch/Type 2 (up/down)
In tuner mode, these buttons raise or lower the A4 frequency
In chord mode, these buttons change the secondary chord type
TCH-300
TUNER & CHORD COMPUTER
Item ref: 173.299
User Manual
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