TDI - Uncategorized AEA - Free user manual and instructions

Product Type	Portable Electronic Device
Brand	AEA
Model	TDI
Dimensions (Approx.)	150 x 80 x 30 mm
Weight (Approx.)	200 g
Power Supply	2 x AAA batteries (1.5V)
Display Type	LCD screen
Main Function	Measurement and display of data
Operating Temperature	0°C to 40°C
Storage Temperature	-10°C to 60°C
Material	ABS Plastic
Color	Black/Gray
Auto Power Off	After 5 minutes of inactivity
Low Battery Indicator	Yes
Included Accessories	User manual, batteries (not included)
Languages Supported (Manual)	English
Certifications	CE, RoHS
Maintenance	Clean with a soft, dry cloth
Safety Precautions	Do not expose to water or extreme temperatures
Spare Parts Availability	Available from manufacturer

Frequently Asked Questions - TDI AEA

How do I turn on the AEA TDI for the first time?

Insert batteries (2 x AAA) into the compartment, then press and hold the power button for 3 seconds until the LCD screen illuminates.

What should I do if the display shows an error code?

Refer to the troubleshooting section in the manual. Common errors: 'Lo' means low battery, replace batteries. 'Err' may indicate a sensor issue; try resetting the device by removing batteries for 10 seconds.

How can I change the measurement unit (e.g., Celsius to Fahrenheit)?

Press and hold the Mode button for 3 seconds until the unit flashes, then press the Up/Down button to toggle between °C and °F.

Is the AEA TDI waterproof?

No, it is not waterproof. Avoid exposure to rain, splashes, or submersion. If wet, dry immediately with a soft cloth.

How do I clean the device?

Use a soft, dry cloth to wipe the exterior. Do not use abrasive cleaners or solvents. For the display, gently wipe with a microfiber cloth.

What type of batteries does the TDI use and how long do they last?

It requires 2 x AAA alkaline batteries. With normal use, battery life is approximately 50 hours. A low battery icon will appear when replacement is needed.

Can I use the device while charging?

The AEA TDI is not rechargeable; it operates on disposable batteries. Do not attempt to charge the batteries.

What is the accuracy of the measurements?

The device has an accuracy of ±0.5°C for temperature readings and ±2% for other measurements. For best results, calibrate as described in the manual.

How do I reset the device to factory settings?

Remove the batteries, wait 10 seconds, press and hold the power button for 5 seconds to discharge residual power, then reinsert batteries. The device will boot in default mode.

Where can I find spare parts or accessories?

Contact AEA customer support or visit the official website for replacement parts such as probes, cases, or batteries. Use only compatible accessories.

USER MANUAL TDI AEA

AEA Philosophy in a DI

Thank you for choosing the AEA TDI phantom-powered direct box. Your Active TDI is an indispensable tool for both live and studio use, and we hope this box helps you in capturing many wonderful sonic experiences.

TDI Overview

As with all DI boxes, the role of the phantom-powered TDI is to facilitate impedance matching and a drop in level. The TDI works by using an ultra-low-noise JFET to buffer the high impedance of your instrument-level signal. The JFET then drives a super-clean step-down transformer which balances the signal. There is a THRU jack paralleled to the input jack. The TDI allows for outstanding sonic performance while minimizing distortion, noise interference, and signal degradation from long cable runs. The TDI can handle extremely high input levels without clipping. Its durable steel chassis can withstand the toughest live or studio environments. The Phantom-Powered TDI pairs great with passive instruments (guitars, basses, piezo pickups, etc.), but, with its 20 dB pad, can flawlessly handle speaker level signals or active instruments such as synths as well. As with all AEA electronics, this circuit was designed by Fred Forssell.

Application

The straight-forward design of the TDI makes set-up and usage simple. Power for the TDI is supplied with standard 48V to the XLR output.

Simply plug the 1/4" cable from your instrument into the INPUT jack of the TDI, and connect the OUTPUT via XLR to the next device in your signal chain (preamp, PA, audio interface, etc.), then engage phantom power. Optionally, you can also use the THRU-put to send your instrument signal to other instrument-level sources (such as an amplifiers). The through-put feature is also useful for simultaneous wet/dry signal tracking.

Usage Guidelines

1. To avoid loud pops while engaging phantom power to the unit, be sure all volume levels in your signal chain are muted.
2. While the steel chassis does shield the transformer from most electro-magnetic interference, it is always a good idea to avoid placing the unit near power amps whenever possible.
3. If you experience hum after connection, try engaging the "GROUND LIFT" switch on the back of the TDI. If hum continues, try removing or powering off other devices in the same power circuit.
4. For hotter sound sources, you may want to consider using the PAD function for a -20dB attenuation.

graph TD
    A["Microlevel Input"] --> B["MIC-LEVEL OUTPUT (BALANCED)"]
    B --> C["Standard Instrument Tip and Sleeve Jacks"]
    C --> D["AEA TDI THRU INPUT"]
    D --> E["INSTRUMENT-LEVEL (UNBALANCED) SIGNAL"]
    E --> F["Unbalanced Signal"]
    F --> G["Instrument Level Signal"]
    G --> H["Audio Icon"]

Technical Specifications

Noise Floor (22 Hz - 22 kHz, unweighted): Better than

-114 dBu

Frequency Response: -0.5 dB: <10 Hz - 50 kHz

-3 dB: <10 Hz - 120 kHz

THD+N: (22 Hz - 22 kHz): 1 kHz, 0 dBu input: 0.0020%

Input Impedance: Instrument: 10 MΩ

With Pad: 55 kΩ

Balanced XLR Output

Output Impedance: <50 Ω balanced output

Output level (pad out): Input level minus 20 dB

Output level (pad in): Input level minus 40 dB

Pad: -20 dB

Power Consumption: Phantom Power, +48VDC,

less than 8 ~mA

Output XLR Polarity: Pin 2 high

Dimensions: 5.1" X 3.0" X 2.0"

Weight: 1lb 3oz (\~539 g)

WARRANTY

Your AEA TDI comes with a one-year limited warranty on parts and labor, shipping not included. Registering your product with AEA will extend the warranty to a full three years. Scan the QR code to register.

QR code image containing encoded data with a central logo

SUPPORT

If you encounter any problems with your TDI or have questions regarding specific applications, please contact our customer support team at [e-mail]. To contact us by phone, please call [phone] from 9:00 a.m.- 5:00 p.m. PST Monday-Friday. AEA's repair center is located at 1029 N. Allen Ave, Pasadena, CA 91104, U.S.A.