Troubleshooting; System Specifications - Shure T series Manual

TROUBLESHOOTING

PROBLEM
No sound.
No sound.
No sound.
No sound.
No sound.
Sound level from
the receiver is differ-
ent from that of a
cabled guitar or mi-
crophone.
Sound level is
different when you
change guitars.
Distortion level
increases gradually.
Bursts of noise, dis-
tortion, or other
radio signals inter-
rup performance.
Momentary loss of
sound as transmitter
is moved around
performing area.

SYSTEM SPECIFICATIONS

rf Carrier Frequency Range
169.445 to 216.000 MHz (Available frequencies depend on applicable regulations
in country where system is used).
Operating Range:100 m (328 ft) under typical conditions
Audio Frequency Response: 35 to 15,000 Hz,
Image Rejection: 75 dB typical
Spurious Rejection: 75 dB typical
System Distortion (ref.
Signal/Noise Ratio: 95 dB
Sensitivity: –110 dBm for 12 dB SINAD typical
Operating Temperature Range
–20 to 49 C (–4 to 120 F) NOTE: Battery characteristics may limit this range.
Battery Life: 16 hours with 9 V alkaline battery (Duracell MN1604 recommended).
INDICATOR STATUS
Green transmitter POWER
light off.
Green transmitter POWER
light glowing.
Green receiver POWER
light off.
Receiver RF lights (T3) or
DIVERSITY A/B lights (T4)
off.
Transmitter and receiver
POWER lights glowing.
Receiver RF lights (T3) or
DIVERSITY A/B lights (T4)
glowing.
Receiver PEAK light flickers
during loud sounds.
Receiver RF lights (T3) or
DIVERSITY A/B lights (T4)
glowing.
Receiver RF lights (T3) or
DIVERSITY A/B lights (T4)
glowing.
Receiver RF lights (T3) or
DIVERSITY A/B lights
(T4) glowing.
Transmitter LOW
BATTERY light glowing.
Receiver RF lights (T3) or
DIVERSITY A/B lights (T4)
on.
Receiver RF lights (T3) or
DIVERSITY A/B lights (T4)
off when sound is lost.
15 kHz deviation, 1 kHz modulation): 0.1% THD typical
SOLUTION
Slide transmitter POWER ON/OFF switch to ON
position. Make sure battery is inserted properly
(+/–battery terminals must match transmitter termi-
nals). If battery is properly inserted and POWER
ON light still does not glow, replace battery.
Slide transmitter MUTE/ON switch to ON position.
Make sure ac adapter is securely plugged into elec-
trical outlet and into dc input connector on rear panel
of receiver.
Make sure ac electrical outlet works and supplies
proper voltage.
Make sure the transmitter and the receiver are oper-
ating on the same frequency.
Extend receiver antenna(s) as far as possible. T4 re-
ceiver antennas should point away from each other
at a 45 angle from vertical.
Move receiver antennas away from any nearby met-
al objects.
Remove any obstructions from between transmitter
and receiver.
Make sure you can see receiver antenna(s) from
transmitter.
Move transmitter closer to receiver; it may be outside
system range.
Turn up receiver volume control.
Slide transmitter MUTE/ON switch to ON position.
Make sure cable connection between receiver and
amplifier or mixer is good.
Adjust transmitter gain as necessary.
Adjust receiver volume as necessary.
Readjust transmitter gain level to compensate for dif-
ferences in guitar outputs.
Replace transmitter battery.
Identify potential sources of interference (other wire-
less systems, CB radios, etc.) and turn them off or
remove them. If this is not possible, use a wireless
system that operates on a different frequency.
Reposition receiver and perform walk-through test
again. If audio dropouts persist, mark "dead" spots
and avoid them during performance.
3 dB
15
ENGLISH