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Model PA635X
© 2001 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 ON/OFF jack is used, be sure applied
voltage is b5V and +30V DC with proper
polarity. See Fig. 7.
No sound from CH2, CH4 or CH6 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.
PA635X does not turn OFF when REMOTE input
voltage goes to 0 Volts.
Be sure that the POWER switch (item 3, Fig. 2) is set
to the MANUAL OFF (REMOTE ON/OFF) position.
PA635X 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.
