Troubleshooting guide
The following checklist will assist in the correction of most problems which you may encounter with your unit. Before going through the checklist below, refer to the connection and operating procedures. Problem The POWER/PROTECTOR indicator does not light up. Cause/Solution The fuse is blown. t Replace the fuse with a new one. The ground wire is not securely connected. t Fasten the ground wire securely to a metal point of the car. The voltage going into the remote terminal is too low. �The connected master unit is not turned on. t Turn on the master unit. �The system employs too many amplifiers. t Use a relay. Check the battery voltage (10.5 � 16 V). � The POWER/PROTECTOR indicator will change from green to red. � The unit becomes abnormally hot. Alternator noise is heard. Use speakers with suitable impedance. �Stereo operation: 2 � 8 � �Bridging operation: 4 � 8 � The speaker outputs are short-circuited. t Rectify the cause of the short-circuit. The power connecting wires are installed too close to the RCA pin cords. t Keep the wires away from the cords. The ground wire is not securely connected. t Fasten the ground wire securely to a metal point of the car. Speaker wires are touching the car chassis. t Keep the wires away from the car chassis.
264.2 (10 /2)
Stereo Power Amplifier
Operating instructions Manual de instrucciones
Owner�s Record
The model and serial numbers are located on the bottom of the unit. Record the serial number in the space provided below. Refer to these numbers whenever you call upon your Sony dealer regarding this product. Model No. XM-504Z Serial No.
� Halogenated flame retardants are not used in printed wiring boards. � Halogenated flame retardants are not used in cabinets. � Corrugated cardboard is used for the packaging cushions.