Handleiding Phoenix Gold SD500.4 (pagina 6 van 12) (Engels)

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Amplier Owner’s Manual

System tuning

TROUBLESHOOTING

1. Install all system fuses.

2. Set the amplier’s input sensitivity controls to their minimum positions

(full counterclockwise).

3. Set all amplier crossover switches according to your system’s design.

4. Make preliminary adjustments to the crossover frequency, usually 80Hz

is good starting point for high and low pass. It may be necessary to ne

tune the crossover frequency later for the best overall sound quality.

5. If using a Remote Subwoofer Level Control, set it to maximum (full

clockwise).

6. Turn the headunit on with the volume set to minimum.

7. Visually check the amplier’s has turned on by the power LED.

8. Check the condition of all other components to make sure they are

powered up.

9. Set the headunit’s tone controls, balance, and fader to the center (at)

position. Turn o any loudness or other signal processing features.

10. Set the volume control of the headunit for maximum undistorted output

(on most headunits this will be approximately 7/8 of maximum volume).

Use a very clear and dynamic recording.

11. Turn up the sensitivity or input level control on the amplier until the

speakers reach maximum undistorted output.

12. Repeat sensitivity level adjustments for all other ampliers.

13. Reduce the headunit’s volume to a comfortable level.

14. Listen to various musical selections to check overall system balance.

Compare front to rear, midbass to midrange, etc. If one speaker set is

too loud compared to another, then its level must be lowered to blend

correctly with the other speakers.

Note: For subwoofers controlled by the Remote level control, keep the

level setting from step 11 or 12. Use the control to blend subwoofers

with the rest of the system. The correct subwoofer volume will change

depending on road noise and dierences in recordings.

15. Fine tune crossover frequencies to achieve the smoothest possible

blending of each speaker set.

16. Adjust the Bass Equalization Controls on the amplier, headunit or

processor upstream if necessary to increase output.

Note: Use these controls sparingly. Every 3dB of boost requires double the

power at 45Hz. If your subwoofer system requires a lot of boost to sound

good, there may be a problem. Look for out-of-phase woofers, a leaking

subwoofer box, or incorrect box size.

17. With all levels set correctly, the system will reach overall maximum

undistorted output at the volume level set in step 10.

OVERVOLTAGE WARNING - If the voltage is above 14.4V across the +12V and

ground terminal this will cause the amplier to go into protection mode. The

result is no audio ouput from one or more channels. Voltage must between

11.5V to 14.4V for the amplier to operate correctly.

No power: Check voltage at the amplier with a DMM (volt meter), +12v and

R (with head unit on) the voltage should register between 11.5V and 14.4V

when using the attached ground lead of the amplier. Check fuse at amplier

and at the battery. Use a meter to verify connection from one end of the fuse

to the other, breaks may not always be visible. If the fuse is blown, check the

power wire and also the amplier for a short. If the short is in the amplier

itself, see your Phoenix Gold dealer. If no short is present, replace the fuse.

Power without sound: Turn the amplier o and check all input and output

signal cables and power connections. Check the speakers for shorts with

a DMM (volt meter) or by connecting them to another audio source. After

making sure everything is correct, turn the amplier on again.

Power without sound and the PROTECT LED is lit: The red PROTECT LED

lights when the amplier shuts down for either thermal or over-current

protection. A high internal amplier operating temperature will trigger

thermal shutdown: after it cools about 5°C, the amplier will restart. A

shorted speaker lead or operation into unusually low impedance loads will

trigger over-current shutdown: cycle power at the amplier R terminal to

restore operation. Check for shorted speaker wiring or damaged speakers or

crossover systems if over-current shutdown occurs.

No sound from one or more channels: Check for overvoltage on +12V and

ground terminals. Check the balance control in the head unit. Check speaker

connections. Check signal input connection.

Very low output: Check your head unit’s fader control or the amplier’s input

sensitivity level. Make sure subsonic frequency control is not set too high and

LP frequency control is not set too low at the same time.

Frequent amplier shutdown with automatic recovery: This indicates

chronic amplier thermal shutdown because of operation at consistently

high internal temperatures. High operating temperature can be caused

by inadequate ventilation. Make sure you are not running a lower than

recommend impedance. Also check for damaged speakers or passive

crossover systems. Finally, chronic thermal shutdown may result from

otherwise normal operation of the amplier at elevated output power levels,

which can be resolved by providing additional amplier cooling, installing a

higher-power amplier, or reducing amplier output level.

“Motor Boating” - the power indicator going o repeatedly when the audio

system is on: Check the amplier’s connection to the battery. Check battery

voltage. If low, recharge or replace the battery. Check all ground connections.

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