Troubleshooting - Shure PSM 300 P3RA User Manual

MixMode
MixMode allows performers to adjust the blend between two monitoring
mixes (an instrumental mix and a vocal mix, for example). When using
MixMode:
• Each mix is heard through both the left and right earphones
• The MixMode knob adjusts the volume blend between the two monitor
mixes (channel 1 and channel 2)
• Each bodypack receiver can dial in a unique blend to meet the monitor-
ing needs of each performer
Adjusting mix levels
In this scenario, an instrumental mix is on channel 1 and a vocal mix is on
channel 2:
CH 1
Instruments
To hear more of channel one, turn the MixMode knob to the left.
CH 1
Instruments
To hear more of channel two, turn the MixMode knob to the right.

Troubleshooting

Problem
Distorted Audio
No sound from receiver
Turning the MixMode knob
does not affect the sound
Low audio output at the
receiver
Audio or RF drops out
IR sync failure
12
CH 2
Vocals
CH 2
Vocals
Solution
• Check the volume levels at the P3T transmitter and verify that the meter is not reaching the overload indicator
• Check levels going in and out of the mixer. If audio is distorting anywhere in the signal chain, it will be distorted even if the PSM300 sys-
tem is not overloading.
• Make sure batteries in the receiver are fresh
• Verify that the cables are 1/4 inch balanced. If an unbalanced instrument or speaker cable is used, it may introduce noise.
Tip: To tell the difference, look at the connectors on the cable. The metal connector on a balanced cable has two plastic rings that divide
it into three separate sections (tip, ring, sleeve). An unbalanced cable only has a single plastic ring that divides the metal portion into two
sections (tip, sleeve).
• Check that all cables are plugged all the way into the mixer and the P3T inputs. Sometimes, if a cable is not fully inserted, the signal will
be faint and distorted.
• Make sure you are using the line-level outputs from the mixer. If you have a powered mixer, do not use the main speaker outputs, as
they are amplified signals and will overload the P3T inputs.
• Make sure the transmitter and receiver are linked to the same group and channel
• Verify levels are registering at the transmitter and that the volume is turned up on the receiver
• Check that the receiver is on and that the headphones are properly connected to the receiver
• The Stereo-MX/Mono switch on the rear panel of the P3T may be switched to mono. For the MixMode knob to work, the transmitter must
be set to Stereo-MX.
• Verify that the signals going from the mixer to the transmitter are not identical
• Check that the bodypack is set to MixMode
• Check headphone connection and volume level
• If only sending a single channel into the P3T transmitter, check it the MixMode knob isn't turned towards a silent channel. If using one
channel, set the P3T transmitter to mono mode.
• Perform a scan to ensure the receiver is on a clear (available) frequency
• Make sure there is a line-of-sight path between the transmitter antenna and the bodypack receivers
• Verify that other wireless devices that are being monitored, such as wireless microphones, are not experiencing RF dropouts
• If using an antenna other than the one included with the system, make sure it is designed to operate in the correct frequency range
Verify distance between receiver and transmitter is between 6-11 cm
When to Use the Mono Setting
In some cases, only a single input on the transmitter is used (if the mixer
only features a single monitor/auxiliary output, for example). To ensure
that audio is heard on both the left and right earphones:
• Use the LEFT/CH1 input on the transmitter
• Set the transmitter to MONO
Note: When the transmitter is set to mono operation, the MixMode knob
will not affect the sound.