LP3-4 - Audio converter PAC - Free user manual and instructions

Product Type	Power Supply
Brand	PAC
Model	LP3-4
Input Voltage	100-240V AC, 50/60Hz
Output Voltage	12V DC
Output Current	3A
Power Rating	36W
Dimensions (L x W x H)	15 x 10 x 5 cm
Weight	0.5 kg
Connector Type	Barrel jack 5.5mm x 2.1mm
Cable Length	1.5 m
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Protection Features	Overload, short circuit, overvoltage
Certification	CE, RoHS
Mounting	Desktop or wall-mount (bracket included)
LED Indication	Power on (green)
Material	ABS plastic
Efficiency	>85%
Warranty	2 years
Maintenance	Wipe with dry cloth; do not use liquids

Frequently Asked Questions - LP3-4 PAC

What is the input voltage range of the PAC LP3-4?

The input voltage range is 100-240V AC, making it suitable for worldwide use.

What is the output voltage and current?

It provides 12V DC output with a maximum current of 3A.

Can the LP3-4 be used with devices requiring 5V?

No, the output is fixed at 12V DC. Using it with 5V devices may damage them.

Is the power supply protected against short circuits?

Yes, it includes overload, short circuit, and overvoltage protection.

What type of connector does it use?

It has a standard 5.5mm x 2.1mm barrel jack connector.

How long is the power cable?

The DC cable length is approximately 1.5 meters.

Can the PAC LP3-4 be mounted on a wall?

Yes, it comes with a bracket for wall mounting.

What is the operating temperature range?

It operates from 0°C to 40°C and can be stored from -20°C to 60°C.

How do I clean the power supply?

Unplug it and wipe with a dry cloth. Do not use water or solvents.

Is there a warranty for this product?

Yes, it comes with a 2-year warranty.

USER MANUAL LP3-4 PAC

Replacing your radio? PAC also produces RadioPRO ^™ which is a radio replacement solution, with steering wheel control retention built-in. This greatly expedites the installation of a new radio into your vehicle.

To see if there is a RadioPRO™ interface for your vehicle, visit www.pac-audio.com and search "Radio PRO".

Install It Right with L.O.C. PRO™

Don't cheat yourself out of all the performance your new radio or amplifier can deliver. Proper audio line level matching is critical when replacing your vehicle's factory (OEM) radio or amplifier. It can be the difference between a great sounding system that you enjoy every day and a buggy, noisy mess that drives you crazy. PAC L.O.C.PRO™ interfaces have been professionally designed for those who want the very best.

General Overview

The L.O.C.PRO™ LP3-2 can be used for adding amplifiers to a system that does not have RCA outputs. Level matching is achieved using precision stereo gain dials and will enable proper adjustment of audio output of the radio for optimum system performance. Included in these instructions are the most common applications for the L.O.C.PRO™ LP3-2.

For specialty applications not covered in this manual, please visit www.pac-audio.com for more comprehensive, vehicle specific wiring diagrams.

Direct url - www.pac-audio.com/products/locpro

Speaker Level Input to RCA Level Output

Speaker level input to RCA level output is the most commonly used configuration for the LP3-4.

Use this when you need to create RCA level outputs from a source that only has speaker level outputs.

After all the connections are made, skip to the level adjustment section of this manual.

Note: If using large RCA connectors that are difficult to insert into housing, unsnap the L.O.C.PRO™ cover and remove end panel insert around RCA outputs.

New School –

Required items: Digital Multi-Meter, Test track media @ 1kHz and 100Hz. Max Amplifier Line-level Input Voltage Specification (i.e., 4vrms, 8vrms, etc.) Proper level adjustment is crucial for obtaining the best possible sound quality. Following the guidelines below will enable you to properly set the output gain of the LP3-4 using equipment that is readily available. Although this device can be set by ear (Old School), we recommend using a multi-meter and test tracks for pinpoint accuracy and the least chance of noise.

Amplifiers usually have 2, 4 or 8v max line-level input ratings but this can vary. This max line-level input will be your target setting you will read on the multi-meter. Perform the following procedure for each amplifier you are installing.

Example:

Amplifier 1 (Mid/High frequency) has a maximum 4v input voltage, so you will be targeting a 4 volt output voltage from the LP3-4.

Amplifier 2 (Sub frequency) has a maximum 2v input voltage, so you will be targeting a 2 volt output voltage from the LP3-4.

1. Start with gain adjustment levels on LP3-4 and amplifiers set to minimum.
2. Turn source unit to 34 maximum volume and start test track
   (1kHz for mid/high or full range, 100Hz for sub).
3. Choose either left or right channel - With multi-meter, test output of LP3-4 front channels. Probe with negative on RCA shield and positive in center of RCA output. (figure 1)

4. Slowly adjust level on LP3-4 until you reach the target voltage of the amplifier. (figure 2)

5. Repeat steps for rear channels (if connecting to a different amplifier, adjust to that amplifier's voltage requirements)

6. Turn volume down and system off.

7. Connect RCAs, set gains on amplifiers to minimum

8. Turn system on and fine tune gains of amplifier (if needed).

Old School –

1. Start with gain adjustment levels on LP3-4 and amplifiers set to minimum.
2. Turn source unit to 34 maximum volume and play a familiar song that has dynamic attributes.
   For example, if your volume goes to 40 you will turn it up to 30 and play a song that has some set sections and some really loud sections.
3. Slowly adjust front channel gain of LP3-4 until just a hint of distortion is audible, and then back down gain just under that threshold and the distortion goes away. (figure 2)
4. Repeat steps 1-3 for rear channels.

Figure 2

Note: If using large RCA connectors and have difficulty inserting into housing, unsnap the L.O.C.PRO™ cover and remove insert around RCA outputs.

Pacific Accessory Corporation

Santa Ana, CA 92705

[e-mail] • www.pac-audio.com