Xantech PA635 installation instructions Trouble Shooting, Problem, Probable Cause And Solution

Models: PA635

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TROUBLE SHOOTING

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Model PA635

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

 

 

Front Panel LEDs and rear panel power indicator does

Check line cord for good contact in a live AC outlet. If

not light – no sound.

the REMOTE MASTER ON/OFF CONTROL terminals

 

(item #13, Fig. 3) are used, be sure applied voltage is

 

between +5 V and +30 VDC with proper polarity. Refer

 

to Fig. 10.

 

 

Low level or no sound when operated without IR

Level was previously set by IR to a low level or muted.

control.

Simply press LEVEL (System) RESET button as

 

instructed in item 9, Fig. 3.

 

 

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 matching auto-formers and/or

 

speakers as necessary to obtain higher impedance.

 

 

PA635 does not turn OFF when REMOTE input voltage

Be sure that the POWER switch (item 3, Fig. 2) is set

goes to 0 Volts.

to the MANUAL OFF (Out) position.

 

 

PA635 becomes very warm, shuts OFF, but does not

Set POWER switch (item 3, Fig. 2) to MANUAL OFF

come back ON automatically.

(OUT) position for 15 seconds, then back ON. If the

 

REMOTE MASTER ON/OFF CONTROL terminals are

 

used, unplug for 15 seconds, then re-plug.

 

 

Unit responds intermittently or not at all to IR

Look for IR noise at the IR receiver locations in the

commands.

various rooms. Also, long lengths of shielded wire from

 

keypads or IR receivers can cause poor IR executions.

 

Refer to the troubleshooting sections of the IR receiver

 

and keypad manuals you are using.

 

 

The PA635 blew its fuse (item #10, Fig. 3) as power

The supplied 220 Ohm resistor may not have been

was turned OFF using an adapter driving the REMOTE

connected in shunt with the REMOTE MASTER

MASTER ON/OFF CONTROL terminals.

ON/OFF CONTROL terminals. Be sure this resistor is

 

connected and that the leads are making secure

 

contact within the screw terminals of the connector.

 

Refer to CAUTION notes, Fig. 9

 

 

© 2001 Xantech Corporation.

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Xantech PA635 installation instructions Trouble Shooting, Problem, Probable Cause And Solution