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Pacific Accessory Corporation
Page 5
Rev. 070717
Advanced Amplifier Interface
for Ford / Lincoln
AP4-FD11
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:
• Chime volume level
• Enable / Disable Factory Chimes
•
Minimum volume level
• Enable / Disable factory EQ
• Factory EQ frequency
• Factory EQ Q factor
Troubleshooting
1.
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.
2.
Cannot hear SYNC or nav voice - Use the volume knob while either of these voice prompts are active to adjust voice volume.
3.
SYNC or Bluetooth voice is not heard or the volume knob does not adjust SYNC or Bluetooth voice - Set feature DIP switch
3 to the on (down) position. If this still does not remedy the problem, set feature DIP switch 4 (instead of 3) to the on (down)
position. If you put DIP switches 3 and 4 down together, 4 will always override 3.
4.
Cannot hear chimes - Set chime volume using process outlined in Setup and Configuration, or using the AmpPRO application.
If you still do not hear chimes, be sure that you are using the remote output from the AP4 to turn on your aftermarket amplifier.
5.
Low volume setting on radio is too loud - Set minimum volume using process outlined in Setup and Configuration, or using
the AmpPRO application.
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
LED2
Blink Amber
USB Connection Detected
Both LEDs
Alternate Blinking Red Performing Memory Reset
LED Legend
LED 1
