TROUBLESHOOTING
SYMPTOMLIKELY CAUSESOLUTION
No audio No voltage at power Check BATT+, REMOTE andPower6000 Watts Parallel Bridge
(Power LED is off)or remote terminal GND� terminals with VOM for A6000GTi
blown fuse or poor connection
ThermalSignal -18 dB-9 dBE OptI OptFault
Internal fuse blownReplace internal fuse
(incorrect power (see Replacing the Fuse
connections) or Neon Tubes section)
No audioLow or high voltage Check BATT+ terminal with
(Power LED at power terminal VOM for voltage between
3000 Watts Parallel Bridge
is flashing) 10 and 16 Vdc; if not within A3000GTiCH 1Power
ThermalSignal -18 dB-9 dBE OptI Opt
limits, check vehicleOs CH 2Fault
electrical system
No audio Direct current on Disconnect cable from
(Power and speaker output(s)REMOTE terminal; if Fault LED
Fault LEDsis still on, contact local JBL
are on)service centerFigure 18. Display indicates Power Output and Protection status.
No audioInternal amplifier Check for blocked vents
(Power and temperature is overor whether the ambient
Thermal LEDs85! Ctemperature is above 85! C
are on)
Distorted audioAmplifierOs gain isProperly adjust the
(I OPT and/orset to HighLEVEL control (see
E OPT LED[s]Setting Input
are on more Sensitivity section)
than off)
Distorted audioDefective source unitTry new source unit
(I OPT and/or
E OPT LED[s]Shorted speaker Disconnect wires from
work correctly)wiresSPEAKER OUTPUTS and
check for shorts between
wires, or between a wire and
the vehicleOs chassis
Music lacks Speakers are out Check speaker connections
Opunch�of phase(see sections on speaker
connections)
Wrong output modeVerify output mode setting
(see Making the Connections
section)
Neon tubes doNo voltage to neon tubesCheck LIGHTING
not lightfor +12 Vdcterminal with VOM
Neon tubes are deadReplace neon tubes
(see Replacing the Fuse
or Neon Tubes section)
11 |
ACEC
HARMAN KARDON
