Trouble-Shooting, Symptom Possible Cause

RSd AMPLIFIERS

2 CHANNEL OWNER’S MANUAL

TROUBLE-SHOOTING

SYMPTOM: POSSIBLE CAUSE

No power: Check voltage at ampliﬁer with a DMM (volt meter), B+ and REM (with source unit on) the voltage should register between 12.2V-14.6V when using the attached ground lead of the ampliﬁer. Check fuse at ampliﬁer 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 fuse is blown, check the power wire and also the ampliﬁer for a short. If the short is in the power wire, repair it. If the short is in the ampliﬁer itself, see your Phoenix Gold dealer. If no short is present replace the fuse.

Power without sound: Turn the ampliﬁer off 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 normal, turn the ampliﬁer on again.

Power without sound and status LED is lit red: The continuous red light of the power indicator signals a high internal operating temperature, which results in the ampliﬁer switching off temporarily. When the ampliﬁer cools down to a safe level, the amp will automatically restart. The continuous red light of the power indicator can also indicate a shorted speaker lead or battery voltage that is either too high or too low for proper operation.

No sound from one side: Check balance control. Check speaker connections. Check signal input connection.

Very low output: Check your source unit’s fader control. Check the ampliﬁer’s Input Sensitivity Level.

Frequent automatic ampliﬁer shut down: This indicates that the ampliﬁer is operating at a continually undesirable high internal temperature. High operating temperature can be caused by inadequate ventilation: Refer to the sub-section titled LOCATION for better ampliﬁer location. High operating temperature can also be caused by an excessively low impedance load. For instance below

2 ohms stereo or 4 ohms bridged. Check for bad speakers or bad passive crossover components. If all else fails, try rewiring the entire system. High operating temperature can be caused by an incorrect input sensitivity level, refer to sub-section titled INPUT SENSITIVITY ADJUSTMENT.

“Motor Boating” - the power indicator going off repeatedly when the audio system is on: Check the ampliﬁer’s connection to the battery. Check battery voltage. If low, recharge or replace battery. Check all ground connections.

Whining noise when engine is running: Reroute power cable from battery to source unit directly (include fuse), bypassing the battery terminal in the fuse box. Check power connections to be sure they are clean. Check the battery ground making sure the battery terminals and chassis ground are clean. Run a ground wire from the source unit to the ground point of the ampliﬁer and remove old source ground.

CAUTION: Do not disconnect the Power Ampliﬁer’s ground when the system is on. This could damage the ampliﬁer.

Phoenix Gold International, Inc.
9300 North Decatur St.
Portland, OR 97203
503.286.9300
www.phoenixgold.com	RSd Monoblock Owner’s Manual 9.05 #8100.0319A