Specifications; Troubleshooting - Harman JBL DSP4086 Mode D'emploi

17. Parametric or graphic EQ. You can apply custom EQ
curves to each channel you have connected. To increase the
level of a given frequency, drag the slider up. To lower it, drag
the slider down.
18. EQ Setup. This EQ setup feature lets you click to select the
channels to which you want to apply EQ curves.
NOTE: The FREQ, GAIN, and Q fields shows the values of the
changes made by moving the EQ sliders. Only Gain is adjustable
when in Graphic EQ Mode. Frequency, Gain, and Q are all
adjustable in Parametric EQ Mode. These adjustments can be
made using the sliders or entering specific values in the F, G, and Q
fields.
19. Bypass EQ and Restore EQ. "Bypass EQ" allow you to
return your EQ settings to flat so you can hear the differences
made during your tuning. "Restore EQ" returns all EQ
adjustments to the previous settings.

SPECIFICATIONS

• RMS Power Output (Watts x Channel) @ 2-ohm: 60W x 8
• RMS Power Output (Watts x Channel) @ 4-ohm: 40W x 8
• Amplifier Class: Class D
• Battery Voltage Range (Volts): 8V to 16V
• Selectable Turn-on Modes: 12V, Audio Signal Sense, DC
Offset, 12V remote output
• LED Indicator: red/green
• Frequency Response: 10Hz to 22kHz @ -3dB
• Signal-to-Noise Ratio: 90dB
• Signal-to-Noise Ratio (CEA-2006): 75dB
• THD+N @ 4-ohm: <1%
• Input Sensitivity, selectable: High-level or low-level
• Input Sensitivity - Low Level: 680mV to 6V
• Input Sensitivity - High Level: 1.6V to 15V
• Variable Crossovers: All Channels: HPF, LPF, Band-pass w/
selectable 0 to 48dB slope
• Gain, variable: All Channels with PC
• Subwoofer level, variable : Channels 7 & 8 in PC software or
using accessory remote control from -30dB to +6dB
• Fuse Rating: 40A
• Minimum Recommended Power/Ground Wire Gauge: 8awg
• Speaker Level Inputs: Yes (RCA adapter)
• Remote Bass Control: Included
• Length : 9-3/8" (237.5mm)
• Width: 5-11/16" (144mm)
• Height: 1-15/16" (49.5mm)
• Weight: Approx. 1000g
• Protection: DC, OVP, UVP, OCP, OTP

TROUBLESHOOTING

No audio and POWER INDICATOR is off.
• No voltage at BATT+ and/or REM terminals, or bad or no
ground connection. Check voltages at amplifier terminals with
VOM.
No audio and PROTECT INDICATOR flashes.
• DC voltage on amplifier output. Amplifier may need service; see
enclosed warranty card for service information.
No audio and PROTECT and POWER INDICATORS flash.
• Voltage less than 9V on BATT+ connection. Check vehicle
charging system.
No audio and PROTECT INDICATOR is on.
• Amplifier is overheated. Make sure amplifier cooling is not
blocked at mounting location. Verify that speaker-system
impedance is within specified limits. Or, there may be voltage
greater than 16V (or less than 8V) on BATT+ connection.
Check vehicle charging system.
Amplifier fuse keeps blowing.
• The wiring is connected incorrectly or there is a short circuit.
Review installation precautions and procedures. Check wiring
connections.
Distorted audio.
• Gain is not set properly. Check Individual Channel Volume and/
or Mater Volume settings. Check speaker wires for shorts or
grounds. Amplifier or source unit may be defective.
Distorted audio and PROTECT INDICATOR flashes.
• Short circuit in speaker or wire. Remove speaker leads one at
a time to locate shorted speaker or wire, and repair.
Music lacks dynamics or "punch."
• Speakers are not connected properly. Use 0°/180° phase
adjustment, and check speaker connections at amplifier and
speaker.
EN EN
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