Donner DP-Z Guitar Pedal Power Supply User Manual

1. Introduction

Thank you for choosing the Donner DP-Z Guitar Pedal Power Supply. This unit is designed to provide stable and isolated power to your guitar effect pedals, ensuring optimal performance and minimizing unwanted noise. Featuring multiple isolated DC outputs and a convenient USB charging port, the DP-Z is a versatile solution for powering your pedalboard.

Donner DP-Z Guitar Pedal Power Supply with included cables and power adapter

Image 1.1: The Donner DP-Z power supply unit, its external power adapter, and various DC power cables included in the package.

2. Key Features

Super Power Adapter: Equipped with a DC 18V 2000mA input adapter to ensure stable and sufficient power delivery to all outputs.
10 Isolated DC Outputs: Provides clean, isolated power to prevent ground loops and noise interference between pedals.
Versatile Output Options: Includes outputs for 9V, 12V, and 18V pedals with varying current capacities (100mA, 300mA, 500mA).
USB Charging Port: A dedicated 5V 1000mA USB port for charging mobile devices or powering USB-compatible accessories.
Noise Reduction Circuit Design: Engineered to minimize noise, providing a clearer audio signal.
Short Circuit Protection: Each output is independently protected against short circuits, ensuring other outputs remain operational if one experiences a fault.
LED Indicators: Bright blue LED lights indicate power status for each output and can also signal a short circuit. An LED bar provides general pedalboard lighting.

Donner DP-Z power supply showing 11 independent power interfaces and icons for 10 outputs, low noise, and stable power.

Image 2.1: Overview of the DP-Z's independent power interfaces, highlighting its 10 outputs, low noise operation, and stable power delivery.

3. Package Contents

Please check that all items are present in your package:

Donner DP-Z Guitar Pedal Power Supply Unit
DC 18V 2000mA Power Adapter
DC Power Cables (various lengths and types for connecting pedals)
Polarity Reversal Cables (for pedals requiring center-positive power)
9V Battery Emulator Cables (for powering pedals designed for 9V batteries)

4. Setup Instructions

Connect the Power Adapter: Plug the included DC 18V 2000mA power adapter into the "DC IN 18V" port on the DP-Z unit. Ensure the adapter is securely connected.
Connect to Wall Outlet: Plug the power adapter into a suitable AC wall outlet. The blue LED bar on the DP-Z unit should illuminate, indicating power.
Connect Pedals: Use the provided DC power cables to connect your effect pedals to the appropriate output jacks on the DP-Z.
- Match the voltage (9V, 12V, 18V) and current (mA) requirements of your pedals to the corresponding outputs on the DP-Z. Refer to Section 6 for detailed output specifications.
- Most guitar pedals use a center-negative polarity. If a pedal requires center-positive polarity, use one of the included polarity reversal cables. Always verify your pedal's polarity requirements to prevent damage.
USB Device Connection (Optional): If desired, connect a USB charging cable to the "USB DC OUT 5V" port to charge mobile devices or power USB-compatible accessories.

Donner DP-Z power supply with the 18V 2000mA input adapter connected, highlighting the magnet ring for noise reduction.

Image 4.1: Proper connection of the 18V 2000mA power adapter to the DP-Z unit, showing the magnet ring designed to reduce noise.

Donner DP-Z power supply installed neatly under a guitar pedalboard, demonstrating its compact fit.

Image 4.2: The DP-Z unit installed on a pedalboard, illustrating its compact design and how it fits into a typical setup.

5. Operating Instructions

The Donner DP-Z is designed for simple operation. Once connected as described in the Setup section:

Power On: The unit powers on automatically when the 18V adapter is plugged into a wall outlet. The blue LED bar will illuminate.
Output Indicators: Each DC output has a corresponding blue LED indicator. These LEDs will light up when a pedal is connected and receiving power.
Short Circuit Indication: If an output experiences a short circuit, its individual blue LED will turn off, while other outputs will continue to function normally. Disconnect the problematic pedal and cable, then reconnect to reset the protection.
LED Bar Control: A small button near the DC IN port allows you to toggle the main blue LED bar on or off. This does not affect the power output to your pedals.
9V/12V Switchable Output: Output 9 offers a switch to select between 9V 500mA and 12V 100mA. Ensure this switch is set correctly for your pedal's requirements before connecting.

Donner DP-Z power supply with outputs labeled by voltage and current, and a legend explaining each output type.

Image 5.1: Detailed view of the DP-Z's output section, illustrating the six different specifications of output available for various pedals.

6. Output Specifications

The Donner DP-Z provides 10 isolated DC outputs and 1 USB charging port with the following specifications:

Output Number	Voltage	Current (Max)	Notes
1, 2, 3, 4	9V DC	100mA	Standard 9V outputs for low-current pedals.
5, 6, 7	9V DC	300mA	For medium-current 9V pedals.
8	9V DC	500mA	For high-current 9V pedals.
9	9V DC / 12V DC	500mA (9V) / 100mA (12V)	Switchable output. Ensure correct voltage selection.
10	18V DC	300mA	For 18V compatible pedals.
USB Port	5V DC	1000mA	For charging mobile devices or powering USB accessories.

Always check the voltage and current requirements of your pedals before connecting them to avoid damage. Most guitar pedals are center-negative; use polarity reversal cables if your pedal requires center-positive.

Donner DP-Z power supply with a smartphone and tablet connected to the USB port, illustrating its charging capability.

Image 6.1: The DP-Z's 5V 1000mA USB output port, capable of charging mobile devices.

7. Safety Information

Use only the provided DC 18V 2000mA power adapter. Using an incorrect adapter may damage the unit or connected pedals.
Do not expose the unit to water, moisture, or extreme temperatures.
Avoid dropping or subjecting the unit to strong impacts.
Do not attempt to open or modify the unit. This will void the warranty and could lead to electric shock.
Ensure proper ventilation around the unit during operation.
Always verify the voltage, current, and polarity requirements of your pedals before connecting them to any output.

8. Troubleshooting

Problem	Possible Cause	Solution
No power to a pedal.	Cable not connected properly. Pedal requires different voltage/current. Short circuit in the pedal or cable. Incorrect polarity.	Check all cable connections. Verify pedal requirements against output specifications (Section 6). If the output LED is off, disconnect the pedal/cable, then reconnect. Replace faulty cables. Ensure correct polarity; use a polarity reversal cable if needed.
Excessive noise (humming, buzzing).	Ground loop issues. Faulty patch cables. Pedal itself is noisy. Interference from other electrical devices.	The DP-Z has isolated outputs to minimize ground loops. Ensure all pedals are connected to isolated outputs. Test with different patch cables. Some pedals are inherently noisy; consider a noise gate pedal. Try plugging the power supply into a different wall outlet or a power conditioner.
Unit does not power on.	Power adapter not connected. Wall outlet not active. Faulty power adapter.	Ensure the 18V power adapter is fully plugged into the DP-Z and the wall outlet. Test the wall outlet with another device. Contact customer support if the adapter is suspected to be faulty.

9. Technical Specifications

Model: DP-Z
Input: DC 18V 2000mA
Outputs:
- 4 x DC 9V 100mA
- 3 x DC 9V 300mA
- 1 x DC 9V 500mA
- 1 x DC 9V/12V 500mA (switchable)
- 1 x DC 18V 300mA
- 1 x USB DC 5V 1000mA
Dimensions: 7.87 x 1.97 x 1.97 inches (200 x 50 x 50 mm)
Weight: 1.5 pounds (0.68 kg)
Material: Aluminum alloy (base), Plastic (cover)

10. Warranty and Support

Donner products are designed for reliability and performance. For any questions or assistance, please refer to the following:

Warranty: This product comes with up to a 12-month warranty from the date of purchase. Please retain your proof of purchase for warranty claims.
Return Policy: A 30-day free return policy is typically offered. Please check with your retailer for specific return conditions.
Customer Service: For technical support or service inquiries, please contact Donner customer service. 24/7 services, including phone chat and email assistance, are available. Visit the official Donner website for contact information.

	Donner Revecho Guitar Effect Pedal Owner's Manual - Delay and Reverb Comprehensive owner's manual for the Donner Revecho EC1118, a compact twin guitar effect pedal featuring versatile delay and reverb effects with tap tempo functionality.
	Donner Alpha Acoustic Mini Effect Chain Pedal - Owner's Manual Owner's manual for the Donner Alpha Acoustic Mini Effect Chain pedal, detailing its features, specifications, connections, controls, and precautions for use. Includes information on preamp, chorus, and reverb modules.
	Donner Alpha Bass EC1106 Guitar Bass Effect Pedal Owner's Manual Owner's manual for the Donner Alpha Bass EC1106 compact effects pedal chain, detailing its features, specifications, connections, and controls for bass guitarists.
	Donner Harmonic Square Guitar Effect Pedal - Owner's Manual Owner's manual for the Donner Harmonic Square compact delay and multi-mode pitch shift stompbox. Learn about its features, specifications, precautions, and controls.
	Donner Fuzz Seeker Fuzz Guitar Effect Pedal - Owner's Manual Official owner's manual for the Donner Fuzz Seeker, a compact analog octave fuzz guitar and bass effect pedal. Learn about its features, controls, specifications, and precautions.
	Donner Pocket GO User Manual Comprehensive user manual for the Donner Pocket GO, a portable and multifunctional guitar and bass effector. Explore its 21 editable presets, 6 effect modules, software control, Bluetooth connectivity, and audio interface capabilities.

Donner DP-Z