PAC AP4-TY12 User Manual

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Advanced Amplier Interface

To Aftermarket

Amplier

Non-FadingRearFront

1(L) 2(R) 4(R) 5(L) 6(R)3(L)

Remote Turn On Output

2A Max Output

To Radio

Non-Fading

Level Control

Knob

To Vehicle

Harness

28 - Pin

6 - Pin

10 - Pin

AP4-TY12-HAR

Remote Turn On Output (2A Max)

Mute Input From Navigation *

Mute Input From Telematics *

* See Page 2 Installation Notes 11 and 12 for further details regarding the Mute Input leads.

AP4-TY12

Introduction and Features

The AP4-TY12 provides a 6-channel pre-amp output for use with aftermarket audio equipment. Using the full range,

xed level head unit output, in conjunction with data bus messages, the AP4-TY12 delivers a variable 5v RMS preamp output with fading, balance, equalization, and level control capabilities. The module also retains audio from

other vehicle features such as factory navigation prompts, Bluetooth and Voice Activation. An accessory controlled

remote amplier turn on wire is also provided by the AP4-TY12. When used in conjunction with the APA-TOS1 (sold separately), the module can provide a variable 2-channel ber optic digital audio output (TOSLINK).

Important Notes

1. Only compatible in vehicles equipped with a data bus controlled premium sound system. To verify compatibility in Toyota, look for a JBL logo on the radio. In Lexus, compatible applications will have a center channel or factory subwoofer.

2. The AP4-TY12 does not support retention of the Easy Speak function.

3. Toyota Safety Connect and Lexus Enform (SOS) can easily be retained. See the Tech Brief "AP4-TY12 SOS Retention" at PAC-audio.com for detailed instructions.

4. The factory radio's speed controlled volume, DSP, and surround sound mode are not supported by the AP4 outputs.

5. The factory amplier must remain connected, and in the vehicle after the AmpPRO has been installed.

6. Prior to testing, cycle the ignition off and back on again to properly initilize the AP4-TY12.

7. The radio's beep setting must be enabled on the factory radio in order to hear the audible tones when making selections through the radio.

8. Initially, if the beep through the AP4-TY12 does not match the on / off selection through the radio, cycle the beep to the opposite setting and back, then test again.

9. The radio's beep volume and minimum volume levels are set to 0 dB by default. If you are happy with this level in your

particular application, additional adjustment is not required. Please refer to the Setup and Conguration section on page 2

for more details.

10. The Radio's Nav / VR Voice, incoming E-mail tone, Ringtone, In-Call, Incoming SMS / MMS tone and Incoming SMS Voice volumes can be adjusted through the radio's settings menu as they were prior to installation of the AP4-TY12.

11. The remote output is rated at 2A of current. If more current is needed, an external relay must be used.

12. Channels 5 and 6 are non-fading outputs. The output level of channels 5 and 6 can be controlled using the supplied level control knob.

13. The level control knob must be connected in order to manually adjust the beep volume and minimum volume settings.

14. No adjustments can be made manually using the programming button when the module is connected to a PC.

15. Due to variations between various OEM radios and even between radio modes, the radio output voltage may vary slightly from the selected 5 volt (or 4 volt when DIP switch 2 is down) output.

for Select Toyota / Lexus Vehicles

Wiring Connection Chart

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AP4-TY12

DIP

1 2 3 4

Module Layout

Feature Select DIP switches

Interface Connector 1

Expansion Port

Programming Button

USB Connection

Installation

Set DIP switches to the ON position to activate the corresponding features. Set DIP switches to the OFF position for any features that are not desired.

Two Channel Mode 5v / 4v Preout Not Used Not Used

1 2 3 4

Non-Fading Level Control Knob Connection

Advanced Amplier Interface

for Select Toyota / Lexus Vehicles

TOSLINK Output (APA-TOS1 sold separately)

Front Output Ch. 1(L) and 2(R)

Rear Output Ch. 3(L) and 4(R)

Non-Fading Output Ch. 5(L) and 6(R)

LED 1

LED 2

1. Remove factory radio.

2. Disconnect the 28-pin harness, the 10-pin harness and the 6-pin harness from the radio.

3. Connect AmpPRO harnesses to vehicle harnesses.

4. Connect AmpPRO harnesses to factory radio.

5. Set any feature DIP switches that apply to your install. a. DIP switch 1 is used for two channel mode. In this mode, both the TOSLINK and front RCA outputs (1 and 2) become

non-fading outputs.

b. Set DIP switch 2 on (down) to lower the RCA output voltage to 4v. Leave DIP switch 2 off (up) to keep the RCA output

voltage at 5v. See troubleshooting section on page 5 for more details.

c. DIP switches 3 and 4 are not used and should remain off (up).

6. If you are using the APA-TOS1 (sold separately) refer to the instructions included with that product for its installation.

7. Connect the AmpPRO harness to the module.

8. Connect the level control knob to the module and install in an accessible location.

9. Connect the signal cables and remote input from the aftermarket amplier.

10. Initially, if the beep through the AP4-TY12 does not match the on / off selection through the radio, cycle the beep to the opposite setting and back, then test again.

11. The Yellow / Black "Mute Input from Telematics" wire will be used in conjunction with the Safety Connect / Lexus Enform (SOS) Retention. See the Tech Brief "AP4-TY12 SOS Retention" at PAC-audio.com for detailed instructions.

12. The Brown "Mute Input From Navigation" is a spare mute lead that can be used for custom applications. The audio will be muted whenever the Brown wire is supplied a ground.

Setup and Conguration

1. Turn the ignition on. LED 1 on the interface will turn on and the +12v remote output will turn on.

2. Set the amp gain(s) to the desired level. We recommend using an oscilliscope and test tones to set the amp gain(s). Please refer to the MECP Advanced study guide (p. 360) if you are unfamiliar with this process.

3. Check volume, balance, fade and EQ settings.

4. If you would like to adjust the radio's beep volume or minimum volume, do so using one of the methods outlined below. If you are happy with the default levels, no adjustments are necessary.

Manually Setting the Radio's Beep Volume

You can manually set the level of the factory radio beeps using the programming button on the side of the interface. If you would like to set the beep volume using the PC app please proceed to the PC App section.

PLEASE NOTE: Level control knob must be connected to the module in order to set the Radio's Beep Volume.

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AP4-TY12

Setup and Conguration (cont.)

Setting the radio's beep volume using the programming button

1. Start with the level control knob turned all the way down (counter-clockwise).

2. Press the programming button on the side of the interface.

3. LED 1 will turn green and beeps will begin continuously sounding.

4. Turn the level control knob clockwise until the desired beep volume level is reached.

5. You can now either press the programming button twice or wait ten seconds to exit the settings.

Manually Setting the Minimum Volume

If the minimum volume of the radio (factory radio volume level 1) is too loud, you can manually set the level of the minimum volume using either the programming button on the side of the interface or the factory SWC. If you would like to set the minimum volume using the AmpPRO app, please proceed to the AmpPRO App section.

PLEASE NOTE: Level control knob must be connected to the module in order to set the Minimum Volume.

Setting the minimum volume using the programming button

1. Start with the level control knob turned all the way down (counter-clockwise).

2. Set the amp gains to the desired level.

3. Set the volume on the factory radio to 1.

4. Press the programming button on the side of the interface twice.

5. LED 1 will turn amber and the chimes will begin sounding every ve seconds.

6. Turn the level control knob clockwise until the desired minimum volume level is reached.

7. You can now either press the programming button once or wait ten seconds to exit the settings.

AmpPRO App

for Select Toyota / Lexus Vehicles

Use of the AmpPRO App allows you to do the following:

• Congure User Interface Options such as:

• Minimum Volume Level

• Chime (Radio Beeps) Volume Level

• Enable / Disable AP4 Chimes (Radio Beeps)

• Enable / Disable factory EQ

• Bass / Mid / Treble boost frequencies and Q factor

• Update Product Firmware

• Read Firmware / Hardware Versions

• You can download the Amp PRO app at :

http://aampglobal.com/appdownloads

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AP4-TY12

AmpPRO App (cont.)

PLEASE NOTE: These settings can be adjusted with the module installed in the vehicle, or on the bench. However, it is recommended to make the adjustments with the module installed, and the factory radio on, so that the changes can be heard.

Minimum Volume Level - This allows you to set the minimum volume level of the factory radio (factory radio volume level 1).

Chime Volume Level - This allows you to set the volume of the radio beeps that are heard through the AP4.

Chimes Enabled - This allows you to enable / disable AP4 radio beeps (ie: tone that is heard when pressing radio buttons).

This is used when mixing factory and aftermarket speakers. It is also possible to turn the beeps off altogether using the radio's factory settings menu.

3 Band EQ Enabled - This allows you to enable / disable the 3 band factory EQ.

Bass / Mid / Treble Freq / Q Factor - This allows you to set the center frequency that will be adjusted when setting the 3 band

factory EQ, as well as the Q Factor for each frequency. The Q Factor determines how many of the adjacent frequencies will be affected when adjusting the selected frequency. The lower the Q Factor, the more frequencies will be affected.

Available Frequencies and Q Factors

60HZ 500HZ 7.5KHZ

Bass Frequency Mid Frequency Treble Frequency

Bass Q Factor Mid Q Factor Treble Q Factor

80HZ 1KHZ 10KHZ 100HZ 1.5KHZ 12.5KHZ 120HZ 2.5KHZ 15KHZ

0.50 0.75

1.00 1.00

1.50 1.25

2.00 1.50

for Select Toyota / Lexus Vehicles

0.75

1.25

Firmware Updates

The AmpPRO app will also allow you to update the interface with new rmware as it becomes available. Please visit www.pac-audio.com or contact our tech support department to see if there is a rmware update for your interface.

Connect the interface to your PC and select "Firmware", then “Update Firmware”. Now select “Select File”. Finally, browse to

the place where you saved the le and select it. This will begin the updating process. Once nished, disconnect the interface

from the PC and resume normal operation.

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Action / Color

During Normal Operation

Solid Red

Module Active

Solid Green

Chime Volume Adjustment Mode

Solid Amber

Minimum Volume Adjustment Mode

Rapid Blink Any Color

DSP Activity

Blink Amber

USB Connection Detected

Both LEDs

Alternate Blinking Red

Performing Memory Reset

LED Legend

AP4-TY12

Restoring Factory Settings

You can restore the interface to factory default settings by pressing and holding the programming button on the side of the module until the status LEDs start blinking red. Once the LEDs start blinking red, release the button.

This reset will restore the following settings to their factory defaults:

• Radio Beeps volume level

• Enable / Disable Factory Beeps

• Minimum volume level

• Enable / Disable factory EQ

• Factory EQ frequency

• Factory EQ Q factor

Troubleshooting

1. No audio - Check to see if LED 1 is illuminated. If not, cycle the ignition off and back on.

2. Hiss at high amp gain - Set feature DIP switch 2 to the on (down) position to lower the output voltage of the AP4 to 4v. If you still hear the hiss, lower your amp gains until the hiss is gone.

3. Cannot hear beeps when pressing buttons on the radio - Go to the Beep On / Off setting in the radio's settings menu and make sure it is set to ON. If it is, set it to OFF and back to ON and test for beeps again. Next, set the beep volume using

process outlined in Setup and Conguration, or using the AmpPRO application. If you still do not hear beeps, be sure that you are using the remote output from the AP4 to turn on your aftermarket amplier.

4. Low volume setting on radio is too loud - Set minimum volume using process outlined in Setup and Conguration, or using the AmpPRO application.

5. Drastic volume difference between radio sources - The radio stores the volume of the radio source from the last time that source was used. Readjust the volume of the individual sources to the same output level.

for Select Toyota / Lexus Vehicles

LED 1

LED2

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