Shure PSM 600 Guide De L'utilisateur page 8

OPERATION
IMPORTANT: Before inserting the earphones in the ear, the
power on the P6HW should be OFF in order to avoid a sudden
burst of volume which could potentially cause hearing damage.
1. Insert the earphones.
2. Plug the earphones into the P6HW.
3. Turn the P6HW ON.
4. Slowly rotate the volume knob clockwise to raise the volume
to a comfortable listening level.
5. For the best signal-to-noise ratio, adjust the level of the audio
source so the PEAK LED momentarily "flickers" at peaks.
TROUBLESHOOTING
NOTE: Many of these problems listed might be caused by the ear-
phones. Always check to see that the earphones are connected
and are functioning properly.
Problem: The system seems to have no low frequency response.
Check to see that the inverted audio input (XLR pin 3) is terminated
properly at either the output jack or in the cable. If you are using
an unbalanced signal, pin 3 should be grounded. If you are mak-
ing your own unbalanced cable, tie XLR pin 3 directly to pin 1.
Problem: The output is distorted or sounds like it is clipping. First
make sure the PEAK LED is not on. If it is on, switch on the 15 dB
pad or lower the input level. Second, if you are hearing the distor-
tion on transients and attacks but the PEAK LED is not on, you
may need to run the input signal through an external compressor/
limiter to catch short peaks.
Problem: The system turned itself off. Put in a fresh battery –– the
system shuts itself off when the battery voltage drops below 6.3 V.
You may notice that you can turn the unit off then back on and it
will start up again. This happens because batteries recharge
slightly when not in use. The battery should still be replaced.
Problem: I replaced the battery with a fresh one, but the system
still will not turn on. Check to see that the battery is not installed
backwards.
Problem: Running mono operation, but the sound level is too low.
When running the P6HW in mono, make sure the side balance
control is at the center detent or turned to the channel being used.
The level will be louder the more it is turned toward that channel.
Problem: No sound. Check that the unit is on, the volume is up,
and check all inputs and outputs. Make sure the RED dot on the
5–pin connector is facing away from the unit.
Problem: In Stereo Mode, sound is coming out of only one chan-
nel. Check the position of the balance control.
ENGLISH
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