User's Manual

aPPendices

Troubleshooting

Problem Solution

No Audio

Switch on transmitter and/or receiver

Change transmitter batteries

Conﬁrm proper polarity of batteries in transmitter

Transmitter audio muted; press MUTE button to unmute

Transmitter and receiver are on different channels; set to same channel

Receiver not connected to audio system, or audio system off or muted

Transmitter Stays On

Transmitter locked; unlock and then turn off

Shorter Range

Antennas not connected to receiver; check connections

Receiver antennas not in line-of sight; raise them or clear obstructions

Interference from other source; change channel and see Near / Far in manual

Place receiver / receiver antennas farther from WiFi or other 2.4 GHz source

Signal Dropouts

Too great a distance between transmitter and receiver; move them closer

Remote the antennas closer to transmitter (with XD-AD8 antenna distribution)

Keep receiver / antennas higher in line-of-sight; no doors or walls obstructing

Changing Transmitters from RF2 (default XD-V55) Mode to RF1 Mode

THH12 handheld and TBP12 Bodypack transmitters operate in a two-frequency mode, where the digital

audio signal is encoded onto two RF carriers at different center frequencies; this provides redundancy

and reliability even when interfering signals are present. The older Line 6 digital wireless systems, such

as the XD-V70, used a four-frequency transmission mode. When using the newer V55 transmitter

with a V70 receiver, it is necessary to change the transmission mode to the earlier method, using the

following procedure.

THH12 Handheld or TBP12 Bodypack

•With the transmitter on, hold the Select button until the channel number ﬂashes.

•Press and hold the

On/Mute (power) button and then quickly press the Select and Value (or

Select and Power for Hand Held); press within one second, as waiting longer may turn off the

transmitter.

•Note that the top line of the LCD display changes temporarily to [RF-1] in place of [CH],

indicating that the transmitter is now in a transmission mode that is compatible with XD-V70

and XD-V30 receivers.

•To return to the RF2 transmission mode, repeat the above process of pressing the power button

quickly followed by the

Select button from the [CH] page. The top line of the display will

temporarily show [RF-2] to indicate the mode change.

•Note that the transmission mode that is set in this manner will be remembered when the

transmitter is powered off.