Ashdown Dr. Green Tune Up - User Manual

1.To avoid short circuit electric shock or malfunction ：
D
o not disassemble for repair.
D
o not place in high temperature and humid space such as electric
heater
,direct sunlight,bathroom,wet floor etc.
D
o not place in excessive vibration.
D
o not place in dusty or dirty space.
D
o not operate the tuner with wet hands.
2
.To avoid breakdown
D
o not handle all controls with excessive power.
D
o not drop the tuner.

3. Cleaning
D
o not use thinner or alcohol for cleaning.
Us
e only dry and clean cloth.
4
. To prevent battery loss
Remove the battery wh
en the tuner is not in use for a long time.
T
urn the power button off when the tuner is not in use.

5. Power supply
Us
e only 9V ：6F22/DC adapter
1) FOOT switch
Pressing this switch will turn the tuner on/off.
2) INPUT jack
Connect the output cord of the instrument to the input jack of tuner.When a
battery is uesd ,the input jack also functions as a power switch.When a plug i
s
inserted into the input jack,the power will be turned on .When the plug is
pulled out ,the power will be turned off.When you are not using the tuner,pull
the plug out of the input jack.
3) DC 9V in jack
If a DV adapter is used,you will be able to pl
ay for extended periods without
worrying about battery life.
4) OUTPUT jack
Connect your Amp or another effect unit to this jack.
When the tuner is off,this will output the signal of the instrument connected to
the input jack.
When the tuner is on,no sound will be ouput from this jack so use this jack if
you wish to tune silently.
Note accuracy
indication
Note display
①
②
③
④
5
6
7
TUNE UP USER GUIDE

Summary

General Precautions and Usage

Safety and Malfunction Prevention

Instructions to avoid electric shock, short circuits, and malfunctions by proper placement and operation.

Avoiding Breakdown

Guidelines to prevent damage from improper handling, excessive force, or dropping the device.

Cleaning Instructions

How to clean the device using only a dry and clean cloth, avoiding solvents.

Battery Management

Recommendations to remove the battery for long-term storage and turn off the power when not in use.

Power Supply Requirements

Specifies the use of a 9V (6F22) battery or DC adapter for power.

Device Controls and Connections

Foot Switch

The foot switch controls the tuner's power on/off function.

Input Jack

Connects instrument output; also acts as a power switch when a battery is used.

DC 9 V Input

Allows extended use with a DC adapter, bypassing battery life concerns.

Output Jack

Connects to an amplifier or effect unit; outputs signal when tuner is off, silent tuning when on.

Pitch Button

Adjusts the reference frequency for tuning, indicated on the display.

Flat Button

Enables the use of flat tunings, indicated by symbols on the display.

True Bypass

Indicates the tuner's true bypass functionality when not active.

Tuning Procedure

Specifications

Ashdown Dr. Green Tune Up Specifications

Tuning Specifications

tuning range	A0(27.5Hz)-C8(4, 186Hz)
accuracy	+/- 1 cent
calibration	436-445Hz (1 Hz step)

Flat Tunings

flat	b, bb, bbb
note	A, A#, B, C, C#, D, D#, E, F, F#, G, G#
indicator	39seg FND & 1 LED

Connections

input	1/4” Input jack
output	1/4” Output jack
power	9V（6F22, DC adapter）

Weight and Dimensions

dimensions	73(W) 110(D) 47(H) mm
weight	300 g (including battery)