13
3.0 Operation
3.1 Precautions
Your amplifier is protected from internal and external faults, but you should still take the fol-
lowing precautions for optimum performance and safety:
1. Before use, your amplifier first must be configured for proper operation, including input
and output wiring hookup. Improper wiring can result in serious operating difficulties.
For information on wiring and configuration, please consult the Setup section of this
manual.
2. Use care when making connections, selecting signal sources and controlling the
output level.
3. Do not short the ground lead of an output cable to the input signal ground. This may
form a ground loop and cause oscillations.
4. WARNING: Never connect the output to a power supply, battery or power main. Electri-
cal shock may result.
5. Tampering with the circuitry, or making unauthorized circuit changes may be hazard-
ous and invalidates all agency listings.
6. Do not operate the amplifier with the red Clip LEDs constantly flashing.
7. Do not overdrive the mixer, which will cause clipped signal to be sent to the amplifier.
Such signals will be reproduced with extreme accuracy, and loudspeaker damage
may result.
8. Do not operate the amplifier with less than the rated load impedance. Due to the
amplifier’s output protection, such a configuration may result in premature clipping and
speaker damage.
9. Use the amplifier in a well-ventilated environment and do not use it at high operating
temperature. Failure of doing so will result in the auto disconnection from power supply
and the activation of over heat auto protection function. The power indicator will be
turned off, and nothing will be output from amplifier. In this case, turn down the volume
to the minimum, and the amplifier will resume working when the amplifier returns to
normal temperature. Turn the volume up to required level.
10. If the amplifier input voltage is too low, the low voltage protection function will be acti-
vated. The power indicator will be turned off.
CAUTION: JBL is not liable for damage that results from overdriving other system
components.
Summary of Contents for CSA-2120
Page 1: ...CSA 2120 Public Address System Amplifier User Guide CS Commercial Solution Series...
Page 2: ......
Page 3: ...CSA 2120 Public Address System Amplifier User Guide...
Page 23: ...CSA 2120...
Page 26: ...2 E N L L N E 3 240V CSA UL...
Page 27: ...3 25...
Page 29: ...5 1 0 JBL Commercial CSA 2120 CSA 2120 CST 2120 1 1 Euroblock 1 2 JBL Professional...
Page 30: ...6 2 0 2 1 JBL Professional 2 2 2 2 3 2 2 4 2 2 5 2 2 1...
Page 31: ...7 A CST 2120 CST 2120 2 2 3 1 2 3 4 2 2 1 2 2 2 2 2 3 CST 2120...
Page 32: ...8 B 2 2 4 1 2 3 4 C 2 2 5 1 2 2 2 5 2 2 4...
Page 36: ...12 2 7 IEC IEC 10 15 2 8 70HZ 70V 100V CST 2120 2 9 1 2 3 4 5...
Page 37: ...13 3 0 3 1 1 2 3 4 5 6 LED 7 8 9 10 JBL Professional...
Page 40: ...16 1 19 EIA RS 310B CSA 2120 2 4 3 CST 2120...
Page 43: ...19 E RoHS Pb Hg Cd Cr 6 PBB PBDE SJ T11363 2006 X SJ T11363 2006...
