HeadsetUSA PAS 400 manual Ground Lift Switch, Fuses 3, Power Switch

1.6 GROUND LIFT Switch (2)

The signal GROUND LIFT switch should be set to the GROUND position. If the PAS 400 hums when connected to other equipment, setting the switch to the GROUND LIFTED position may reduce or eliminate the hum.

1.7 Fuses (3) and (4)

Disconnect the PAS 400 from any external power supply (mains or battery) before changing or inspecting fuses.

Only the following fuse types can be used

1A	Slo-Blo	for 230 Volt AC / 50 Hz models
2A	Slo-Blo	for 120 Volt AC / 60 Hz
2A	Slo-Blo	for 100 Volt AC / 50-60 Hz
6.3A Slo-Blo		for the rechargeable battery

1.8 Powering with a 12-16 Volt DC External or Auto Battery (5)

The "EXT BATTTERY 12 - 16 VDC" socket is accessible by removing the sealing cap.

A plug-in connector for this is socket available. Please note the correct polarity (labelled as "+" and "-" by the socket). Incorrect polarity will not cause damage, but the internal battery will then power the PAS 400.

1.9 Power Switch (6)

The power switch has three positions:

Position 0	Loudspeaker system is Off
	Battery will charge (if connected
	to a power supply)
Position I	Loudspeaker system is On
	Wireless receiver is On
	Battery will charge (if connected
	to a power supply)
Position II	Loudspeaker system is On
	Wireless receiver is Off
	Battery will charge (if connected
	to a power supply)

When the system is switched On (to Position I or Position II), there is an automatic 3-second delay before it is operational.

When the (optional) built-in wireless receiver is not being used, set the Power Switch to Position II to conserve battery power and to get the longest run-time per charge.

When switching from Position I to Position II (or visa versa), first switch to Position 0 and wait 5 seconds before switching to the next position, otherwise, the Deep Discharge Cut-Off Circuit may be activated (if activated, switch to Position 0 and wait 30 seconds before switching to Position I or II.).

8 freePORT PAS 400 Version 060328