JBL CSA 1120Z Operation Manual - Important Safety Information

Manual is about: Commercial Series

Summary of CSA 1120Z

  • Page 1

    Csa 140z csa 180z csa 1120z csa 240z csa 280z csa 2120z commercial series amplifier operation manual jbl commercial series.

  • Page 2: Contents

    2 this manual does not include all of the details of design, production, or variation of the equipment. Nor does it cover every pos- sible situation which may arise during installation, operation or maintenance. The information provided in this manual was deemed accurate as of the publication date. ...

  • Page 3: Important Safety Information

    3 important safety information warning for your protection read the following: keep these instructions heed all warnings follow all instructions the apparatus shall not be exposed to dripping or splashing liquid and no object filled with liquid, such as vases, shall be placed on the apparatus clean ...

  • Page 4: Important Safety Information

    4 important safety information electromagnetic compatibility this device complies with part 15 of the fcc rules and the product specifications noted on the declaration of conformity. Operation is subject to the following two conditions: • this device may not cause harmful interference, and • this de...

  • Page 5

    5 ec - declaration of conformity brand: jbl equipment type: commercial audio amplifiers model names: csa 140z, csa 180z, csa 1120z, csa 240z, csa 280z, csa 2120z we, harman international, declare under our sole responsibility that the product, to which this declaration relates, is in conformity with...

  • Page 6

    6.

  • Page 7: 1.0 Welcome

    7 1.0 welcome the jbl ® commercial series of amplifiers are a professional tool designed and built for installed sound applications. There are both single channel and two channel models. They provide amplification with a choice of low impedance, 70v or 100v outputs. The product includes a rack mount...

  • Page 8

    8 1.2 front panel controls and indicators a. Output volume control b. Power switch c. Illuminated ring around the output volume control will light green with signal presence while red indicates clipping, i.E. The signal has reached the threshold of audible distortion. D. Tone controls - bass and tre...

  • Page 9

    9 1.3 rear panel controls and connectors a. Ac power inlet – detachable iec b. Amplifier output connector c. Hi-z switch – enables the 70v and 100v outputs and activates the 70hz high pass filter d. Dual rca input connector – stereo, unbalanced sources will be summed together (ch2-4) e. Audio input ...

  • Page 10: 2.0 Setup

    10 2.0 setup 2.1 unpacking your amplifier please unpack and inspect your amplifier for any damage that may have occurred during transit. If damage is found, notify the transportation company immediately. Only you can initiate a claim for shipping damage. We will be happy to help as needed. Save the ...

  • Page 11

    11 figure 2.2.1 dimensions figure 2.2.2 mounting kit long angle bracket flat bracket front angle bracket rear angle brackets rear flat brackets 218.44 mm [8.6 in] 303.4 mm [11.9 in] 43.3 mm [1.7 in] csa 1120 z.

  • Page 12

    12 to install two units in your cabinet system, refer to figure 2.2.3 and follow the steps below: 1. Align two modules side by side and upside down with the front panel towards the same direction. 2. Connect them with the flat bracket using the screws provided. 3. Attach the front angle brackets to ...

  • Page 13

    13 figure 2.2.4 rack mounting a single unit to install a single unit, refer to figure 2.2.4 and follow the steps below: 1. Determine which side of the rack opening will be used for the amplifier and attach the long angle bracket to the other side at the front of the amplifier using the screws provid...

  • Page 14: 2.3 Ensuring Proper Cooling

    14 2.3 ensuring proper cooling when using an equipment rack, keep a minimum space of 4 inches (10cm) from the top surface of the unit. Close any open spaces in the rack with blank panels. Do not block any air vents. The side walls of the rack should be a minimum of 2 inches (5 cm) from the amplifier...

  • Page 15

    15 2.5 output wiring and connectors to drive distributed speaker systems designed to operate at 70v or 100v, connect to the corresponding output terminals. Jbl recommends using prebuilt or professionally wired, high-quality, two-conductor, heavy gauge speaker wire. Speakers wires should be twisted c...

  • Page 16

    16 2.6 wiring your audio system typical input and output wirings are shown in figure 2.6. Inputs: connect input wiring for both channels using either the rca or the euro- block input for each channel. Outputs: you may use either low impedance or high impedance speakers. Always be sure to maintain th...

  • Page 17: 2.7 Connecting to Ac Mains

    17 2.7 connecting to ac mains connect your amplifier to the ac mains power source (power outlet) with the supplied ac power cord. First, connect the iec end of the cord set to the iec connector on the amplifier; then, plug the other end of the cord set to the ac mains. When properly connected to a l...

  • Page 18: 3.0 Operation

    18 3.0 operation 3.1 precautions your amplifier is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety: 1. Before use, your amplifier first must be configured for proper operation, including input and output wiring hooku...

  • Page 19: 3.2 Hi-Z Switch

    19 3.2 hi-z switch when this switch is in the “off” position, the amplifier is configured to drive low impedance speakers, (4 ohms ,minimum) the hi-z switch will switch in the built-in output transformer allowing the unit to drive 70v or 100v speaker systems directly when connected to the appropriat...

  • Page 20: 4.0 Troubleshooting

    20 4.0 troubleshooting condition: no power to the amplifier so that the power ring is not illuminated. Possible reason: the amplifier is not plugged into the power receptacle condition: no sound or low sound. Possible reason: the input signal is not present or at a very low level. Possible reason: t...

  • Page 21

    21 appendix a: target performance specifications performance csa 140z csa 180z csa 1120z csa 240z csa 280z csa 2120z rated power into 4 Ωor 8 Ω; 1khz, ≤ 0.5% thd 40w 80w 120w 40w 80w 120w number of output channels 1 1 1 2 2 2 insertion loss (70v & 100v outputs) 1 db maximum input sensitivity (8 Ω lo...

  • Page 22

    22 appendix b: contact information for additional information, please consult jbl professional customer service, your system installer or retailer. On the world wide web: www.Jblcommercialproducts.Com professional contacts, outside the usa: contact the jbl professional distributor in your area. A co...

  • Page 23

    23.

  • Page 24

    Part number:5040963 issue: 01/14 jbl commercial 8760 south sandy pkwy. Sandy, ut 84070 usa (801) 566-8800