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Product Overwiew
Thank you for choosing an Onerr product.
The Digital Delay DGD-2 is a 24-bit audio resolution
Delay, giving musicians more versatility in the studio
and better performance for live applications by using
the TAP TEMPO capacity.
The Onerr DGD-2 is designed for all kinds of
instruments and applications.
The HOLD function allows musicians to record riffs of
1250 milliseconds just by pressing and holding the pedal
pad down, allowing the ability to play together with the
recorded sound.

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AC adaptor jack: AC adaptor Jack: Accepts connection
of an external AC adaptor. By using an AC adaptor you can
play without being concerned about the battery life.
Input Jack: Connect your instrument cord or the output
of another effect pedal if you are linking pedals together.
Output Jacks A and B: These output jacks will
deliver the effected sound to your amplifiers or to an
input jack of another effect.
When using a single amplifier use output jack A. If you
wish to use two amplifiers, connect the first unit into
output A and the second unit into output B.
By using two amplifiers you will obtain a great surround
effect in your sound.
Pedal: Depress to turn on/off the pedal.
Depress and hold it for about 2 seconds to turn on/off in
the TAP TEMPO mode. For more instructions about how
to use the TAP TEMPO mode please refer to page 7.
Thumbscrew: By loosing this thumbscrew you will gain
access to the battery compartment. For instructions on
how to replace the battery please refer to page 4.
Effect Level Knob: Gives you control of the level of
output effect. Use this knob to blend how much delay
you want in your sound.
Get more delay by turning this knob to the right, and
less by turning it to the left.
Feedback Knob: Use this knob to control how much
feedback you wish to add in your delay sound.
By turning it totally to the left, you will get a single delay.
By turning it to the right, you will get countless delay.
Pedal Descriptions

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Delay Time Knob: Gives you control of Delay Time in
milliseconds.
The minimum delay time of this unit is 10 milliseconds
and the maximum is 1250 milliseconds.
Mode Switch: Switches the operation mode (Hold
and Delay).
Hold: In this position the indicator led will light in orange.
Step and hold for recording up to 1250 milliseconds.
When released you may play together with the recorded
riff.
While in HOLD position the DGD-2 cannot be turned off
by using the foot pedal, as it is required to determinate
how long you are sampling.
The other controls will also be disabled when switched
to HOLD position.
Delay: In this position the indicator led will light in red
after depressing the pedal. This indicates that the DGD-2
is now working in delay mode and all knob controls are
enabled.
Selection & Check: This led indicates the pedal
status, having three distinct colors:
Orange: When DGD-2 is working in HOLD mode.
Red: When DGD-2 is working in DELAY mode and the
TAP TEMPO function is disabled.
Green: When DGD-2 is working in DELAY mode and
the TAP TEMPO function is enabled.

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The RTTP function is a great ally for the musician as it
allows fast and accurate adjustments of DELAY TIME in
real time.
To enable the RTTP function in your DGD-2 the mode
switch must be switched to DELAY position. After that,
please refer to the instructions below.
Depress and hold the pedal switch for about 2 seconds.
If the indicator led of your DGD-2 is turned off, it will
turn on in green. If the DGD-2 is already turned on in
DELAY mode the indicator led will change its color to
green. This indicates that now you are using the DGD-2
under TAP TEMPO function.
The RTTP mode gives you the ability to change the
Delay Time by using your foot. Your hands will be free
to play without being concerned about the DELAY TIME
knob.
Now it is quite simple! While working in RTTP mode, to
increase or decrease the DELAY TIME, you just need to
depress the pedal three times in the same speed that
you would wish to set up the new Delay Time. The internal
DGD-2 circuitry can read the speed you stomped in real
time and will assume this speed as the new Delay Time
set.
If you wish to change it again, just depress three times
in the new speed you desire. You can change any time
you want while working in RTTP mode. To turn the effect
off simply depress and hold it for 2 seconds. This will
switch the DGD-2 to bypass mode.
The Real Time Tap Tempo (RTTP)

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Powering
You can use a 9 volt alkaline battery (not included) or
AC adaptor to power your pedal.
When using a battery, alkaline is suggested.
To install a battery, simply turn the thumbscrew to the
left, gaining access to the battery compartment.
Connect the snap cord to the battery, observing the proper
polarity.
When the pedal is not in use ONERR highly suggests
removing the battery from its compartment to prevent
possibility of leaking and damage to this unit.
Battery
compartment
Thumbscrew

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Warning:
The input jack also serves as a power switch. Power is turned on when an instrument plug is inserted into the input jack
and is it turned off when disconnected. When this unit is not in use you should disconnect any cord connected to the
input jack.
Warning:
When using an AC adaptor is sure to use a compatible
model for your unit, otherwise irreparable damage may be
caused.
Optional Onerr AC adaptor: Onerr PA-21 or PA-23.
Power supply specifications:
Output voltage: 9 VDC
Current capacity: 100 mA (minimum)
Output plug: 2.1 x 5.5 mm (negative center)
AC input jack

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Notes:
Using this pedal safely
- Only use reliable cords to connect your pedals. This is to be sure you won´t get troubles while playing.
-Before powering your pedals, make all necessary linking connections. In case of you need to change any connection,
do not forget to turn the power off in order to not cause any damage to your units.
-Only use regulated adapators in order to have best performance.
-Do not worry if you accidentally change the input to output cord. This will not damage your unit. Just turn the power
off and reconnect it correctly.
Warning or caution:
Instructions alerting the user to possible risks and/or injuries if the produc is used improperly.
Forbidden actions:
Used to advise those actions that can't be carried out.

Before using this product be sure to read
and check all instructions of this Owner's
manual.
Other than the battery compartment,
do not open this product in any way.
This will void the warranty and may cause
damage to the unit if manipulated by
non-authorized people.
Do not use or store this product in places
that are:
- dusty;
- humid or damp;
- subject to very high (such as sunlight
or near heating equipment) or very low
temperatures;
- subject to rain.
Use only reliable AC adaptors with proper
line voltage. Non-reliable AC adaptors
with different polarity or voltage may
cause damage or malfunction and void
the warranty.
Do not allow any kind of object or liquid to
penetrate this product. This may cause
irreparable damages.
Turn the power off and remove the AC adaptor
from the outlet if any of the following conditions
occur:
-the AC adaptor cord has been cut or
damaged;
-this unit has been exposed to rain or some
liquid has penetrated the unit;
-this product does not appear to operate
normally or presents some change in per
formance.

Microtronix Eletrônica Ltda warrants this unit to be free from defects in materials and workmanship for a period
of 1 (one) year from date of first purchase.
This warranty does not include any kind of damage resulting from accidents, misuse, abusie, alteration to the
internal circuitry or vital parts and damages caused by non-reliable AC adaptors.
If in any way this unit becomes defective within the warranty period, Microtronix Eletrônica Ltda will elect to repair
or replace it free of charge.
After the warranty period, Microtronix Eletrônica Ltda will repair this unit for a fee.
This warranty is extended for residents of Brazil. Please call main office for return authorization number. Microtronix
will not accept packages without prior authorization, pre-paid freight, and proper insurance.
Please call or e-mail the international distributor for warranty information.
Warranty

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Specifications*
Power Supply: DC 9V alkaline or AC adaptor (Onerr model PA-21 or PA-23)
Current draw: 77 mA
Controls: Effect Level, Feedback and Delay Time
Switch: turn on/off effect, Delay/Hold Mode
Indicators: indicator on/off led, Hold and Tap Tempo led.
Jacks: input, output A ,output B and AC adaptor
Input impedance: >470 Kohm
Frequency Range: 20 to 18K Hz.
Delay Time: 0 to 1250 miliseconds
AD/DA Convertion: 24 bits
Dimentions: 130 mm (D) x 74 mm (W) x 61 mm (H)
Weight : 1 lb 6 oz (635g)
*The above specifications are subjetc to change without prior notice.
Manufactured in Brazil by
Microtronix Eletrônica Ltda.
Printed in Brazil – 28001044
www.onerr.com