Alpine VPA-B222 External Audio Processor Optional, Adjustment Procedure for Dolby Surround, 32-EN

External Audio Processor (Optional)

Joystick

When an external audio processor is connected to this unit, you can operate it from this unit. Some audio processors may not be operated. Explanations below is the case when PXA-H700 or PXA-H701 is connected for example.

Refer also to the operating instructions of the connected audio processor.

•The adjustments or settings performed on the connected audio processor cannot be operated properly from this unit.

•The setting "Setting the Speakers", "Setting Bass Sound Control", and "Graphic Equalizer Adjustments" are not available if the MRD- D550 is connected. Additionally, if the MRD-F350 is connected, the following setting "Setting the MX mode" is not available. Also, the setting content differs between the PXA-H700 and PXA-H701.

To display the Audio processor mode screen:

To watch a video source, your vehicle must be parked with the ignition key in the ACC or ON position. To do this, follow the procedure below.

1Bring your vehicle to a complete stop at a safe location. Engage the parking brake.

2Keep pushing the foot brake and release the parking brake once then engage it again.

3When the parking brake is engaged for the second time, release the foot brake.

•For automatic transmission vehicles, place the transmission lever in the Park position.

Now, the locking system for the Audio processor mode operation has been released. Engaging the parking brake can reactivate the Audio processor mode, as long as the car's ignition has not been turned off. It is not necessary to repeat the above procedure (1 through 3), of “To display the Audio processor mode screen.”

Each time the ignition is turned OFF, perform the procedure of “To display the Audio processor mode screen.”

Adjustment Procedure for Dolby Surround

Make the adjustments described below in order to reproduce Dolby Digital and DTS sound with greater accuracy.

Adjustment procedure

1	Speaker Setup (page 36)
	(Turning the speakers to be used on and off and
	setting their response)
2	Adjusting the speaker levels (page 37)
	(Adjusting the signal output level to the various
	speakers)
3	Mixing bass sound to the rear channel
	(page 37)
	(Achieving smooth sound in the rear seat by mixing
	the front audio signals with the rear speaker signals)
4	Adjusting the acoustic image (page 37)
	(Adjusting the acoustic image to achieve a sound as
	if the center speaker were directly in front of the
	listener)
5	Achieving powerful high volume sound
	(page 37)
	(Achieving energetic sound with even greater power,
	like the sound in a movie theater)
6	Adjusting the DVD Level (page 38)
	(Adjust the volume (signal level) in the Dolby Digital,
	Pro Logic II, DTS and PCM modes)
7	Storing Settings in the Memory (page 38)
	(Storing all the settings and adjustments made on the
	VPA-B222 (not only the above settings/adjustments)
	in the memory)

In case of combining the Automatic adjustments, etc.

We recommend to make the Automatic adjustments before the Dolby Surround adjustments.

32-EN