Setting the Unit
Setting the Gain properly
• This unit is equipped with a protective function to |
prevent malfunction of the unit itself and speakers |
from too much output, improper use or improper |
connection. |
• When outputting sound at high volume etc., this |
function will cut off the sound output in a few |
seconds. But this is not a malfunction. When you |
There is no need to decrease the volume of the head unit and too much output is controlled.
Relationship between the gain of the
amplifier and the output power of the
head unit
turn down the volume of the head unit the sound |
output will be restored. |
• If sound output is cut, the gain control of this unit |
may be improperly set. To ensure continuous |
sound output at increased volume of the head unit, |
set the gain control of the amplifier to a proper |
position according to the preout maximum output |
level of the head unit. |
Power |
Normal gain |
Head unit volume steps
Amplifier gain
(normal)
Power |
Maximum gain |
Equal power |
Head unit volume steps
Amplifier gain
(maximum)
Gain Control of This Unit
Preout level: 2 V (Standard: 500 mV)
•If you raise the gain of the amplifier to an improp- er level, only distortion is increased and the power increases only slightly.
Signal waveform when outputting at high
volume by the gain control of the amplifier
| Normal gain |
|
|
|
|
| Maximum gain |
|
|
|
|
|
|
|
|
|
|
|
| Equal power |
|
| |
Signal |
|
| Signal | ||||
waveform |
|
| waveform | ||||
| Amplifier gain |
|
|
| Amplifier gain | ||
|
| ||||||
| (normal) |
|
|
| (maximum) | ||
•With high output the signal waveform is distorted, if you raise the gain of the amplifier the power changes only slightly.
•If you decrease the volume of the head unit and set the gain control of the amplifier to the proper position but still the sound cuts out from time to time, contact the nearest authorized PIONEER Service Station.
5
