Xantech PA435X - Manual (Page 15)

Model PA435X Page 15
© 2003 Xantech Corporation
TROUBLE SHOOTING
If you encounter a problem, please review the items in the following list. Be sure, in addition, to check other system
components, such as preamplifiers, CD players, speakers, speaker wiring, etc., that may be at fault.
PROBLEM PROBABLE CAUSE AND SOLUTION
Rear panel Power Indicator does not light – no sound. Check line cord for good contact in a live AC outlet. If
REMOTE CI jacks are being used, be sure applied
voltage is between +5V and +30V DC with proper
polarity. See Fig. 8.
No sound from CH2, CH4 when stereo operation is
desired. BRIDGED/STEREO switch is incorrectly set to
BRIDGED position. Set to STEREO position. See
Fig. 6.
Sound cuts in and out every 3 to 5 seconds. Speaker load impedance is less than 4-Ohms for
Stereo mode or less than 8-Ohms for Bridged mode.
Make changes in speakers as necessary to obtain
higher impedance.
PA435X does not turn OFF when both REMOTE input
voltages go to 0 Volts. The Logo stays illuminated. Be sure that the Front Panel POWER switch (item 2,
Fig. 2) is set to the REMOTE ON/OFF (OUT) position.
PA435X becomes very warm, shuts OFF, but does not
come back ON automatically. Set POWER switch (item 3, Fig. 2) to MANUAL OFF
(OUT) position for 15 seconds, then back ON. If
REMOTE ON/OFF jack is used, unplug for 15 seconds,
then re-plug.
One or more front panel LED’s glow red. The amplifier has been driven into clipping and/or is
overheating. Correct faulty condition.