Shure PSM 300 Guide De L'utilisateur page 12

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
Optional Accessories and Replacement Parts
Bodypack receiver
Half-rack Transmitter
Universal bodypack receiver
Antenna and power distribution system
Wired PSM bodypack
Dynamic MicroDriver earphones
Dynamic MicroDriver earphones
High-definition MicroDriver earphones with tuned bass port
High-definition earphones with dual MicroDrivers
High-definition earphones with triple MicroDrivers
High-definition earphones with quad MicroDrivers
Carrying/Storage Bag
1/4 wave antenna (774-952 MHz)
1/4 wave antenna (470-752 MHz)
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
system 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
P3R
P3T
P3RA
PA411
P9HW
SE112
SE215
SE315
SE425
SE535
SE846
95A2313
UA400
UA400B
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