Model PA635X
Page 5
© 2001 Xantech Corporation
11. Rear Panel ON/OFF LED
. This LED indicates the power ON/OFF condition of the entire PA635X, whether
activated by a REMOTE MASTER ON/OFF CONTROL voltage (item #13) or from the front panel POWER switch
(item # 3).
12. Grounding Screw
. Provides a means for chassis connection to earth ground or to other A/V products to aid in
the reduction of system noise, etc., where needed.
13. Master AC LINE ON/OFF Switch
. Turns power OFF to the entire PA635X, regardless of front panel POWER
switch conditions. Must be placed in the ON (I) position for the other power switching functions to work.
14. 3-Conductor AC Line Cord Receptacle
. Standard IEC male receptacle for plug-in of a 3-conductor power line
cord. Depending on the application, plug the line cord into a switched or un-switched 120V 60 Hz AC outlet (or
240 VAC 50 Hz on the 240 V version).
INSTALLATION - PHYSICAL LOCATION AND MOUNTING
Upper shelf, component, wall, etc.
2-inch spacing
(minimum)
PA635X
To maximize air flow, route
single large opening in lower shelf.
Keep perforations on top cover free of
obstructions for max. cooling effect.
Keep perforations on bottom
plate free of obstructions.
Convection
Airflow
Figure 4 – HORIZONTAL MOUNTING
When you mount the PA635X, you should plan its location carefully. Pay close attention to each of the following
factors:
1. The amplifier is convection cooled. That is, it depends on the natural free flow of air up through the slot
perforations in the bottom plate, over the internal heat dissipating fins, then out the top cover, for adequate
cooling.
2. If mounted in an equipment cabinet or other confining location, allow at least 2 inches of space above the top
cover (see Fig. 4). Be sure there are large openings in the shelf below the unit and in the cabinet to allow the
entry of cool air and the escape of warm air.
NOTE: Do not remove feet in shelf-top installations.
3. If the cabinet contains other heat generating components or you are using several PA635X's in a large multi-zone
system, you will have to pay even closer attention to adequate ventilation.