JBL P-4020 manual

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Table of contents for the manual

  • Page 1

    Power Series Amplifiers P-4020, P-4040 Owner ’ s Manual GENUINE JBL P-4020/4040 OM. 7/14/98 11:42 AM Page 1[...]

  • Page 2

    2 Amplifier Featur es • 4-, 3- or 2-c hannel operation (P -4040) 2- or 1 -channel operation (P -4020) • Simultaneous stereo and mono operation • Built-in 12dB/oct electronic crossover • Balanced differential input • Pre-amp outputs (filtered on P -4040) • Oversized Floating Rail Mosfet P ower Supply • Universal Interface • Common Se[...]

  • Page 3

    3 • Always wear protective eyewear when using tools. • When routing cables, keep input signal cables away from power cables and speaker wires. • When making connections, make sure that eac h connection is clean, insulated and properly secured. Observe the polarity markings on the rear panel. Refer to the application drawings to set up the amp[...]

  • Page 4

    4 Mounting the Amplifier The JBL P -4020 (or P -4040) can be mounted in virtually an y location inside the vehicle. However , make sure to k eep the amplifier away from heater vents or ducts. 1 . At the c hosen site, use the amplifier as a mounting template and mark the locations of the four mounting holes. 2. Drill a small pilot hole at eac h mark[...]

  • Page 5

    5 4. In some systems it may be desirable to have two sources play simultane- ously through the audio system. For instance, if you have a factory-installed radio in your car and you want to add an aftermarket CD player , you may connect the CD player to the RCA inputs of the amp and the factory radio to the Universal Interface speak er inputs. (Note[...]

  • Page 6

    FUSE 30A BRIDGE – R + – L + MADE IN THE U.S.A. + BATT REM GND BRIDGE SPEAKER OUTPUTS POWER FRONT REAR 30 6 20 – R + – L ++ BATT REM GND BRIDGE SPEAKER OUTPUTS POWER FUSE 20A MADE IN THE U.S.A. FUSE 30A BRIDGE – R + – L + MADE IN THE U.S.A. + BATT REM GND BRIDGE SPEAKER OUTPUTS POWER FRONT REAR 30 20 – R + – L ++ BATT REM GND BRIDGE [...]

  • Page 7

    7 Symptom Likely Cause Solution No audio Low/no remote on voltage Chec k connections; turn-test turn-on voltage Speakers are not connected or are blown Chec k wiring; use VOM/D VM to measure speaker -coil resistance Distorted audio Input sensitivity is not set properly See Set ting Input Sensitivity on page 5 Audio lac ks “punc h” Speakers are [...]

  • Page 8

    JBL Consumer P roducts 250 Cross ways P ark Drive Woodbury , NY 1 1 797 Part No. SH1 1 22 Made in USA Specifications JBL P -4020 JBL P -4040 Power Output, 4 ohms: 2 x 40 wat ts 4 x 40 wat ts Power Output, 2 ohms: 2 x 50 wat ts 4 x 50 wat ts Power Output, Bridged 4 ohms: 100 watts 1 0 0 w atts x 2 Frequency Response: 20Hz ~ 20kHz +0dB, –1dB 20Hz ~[...]