JBL A6000GTI (serv.man5) User Manual / Operation Manual ▷ View online
9
SETTING UP THE GTI AMPLIFIER
REPLACING THE FUSE
OR NEON TUBES
OR NEON TUBES
The JBL A6000/A3000GTi amplifier
is equipped with an internal fuse, a
20-inch neon tube and two 6-inch neon
tubes. Should the fuse or a neon tube
fail, perform the following steps
to replace the part:
is equipped with an internal fuse, a
20-inch neon tube and two 6-inch neon
tubes. Should the fuse or a neon tube
fail, perform the following steps
to replace the part:
NOTE: For neon tube replacement, see
your authorized JBL car audio dealer to
purchase new StreetGlow
your authorized JBL car audio dealer to
purchase new StreetGlow
®
neon tubes
in 6- or 20-inch sizes.
NOTE: Although the following
steps discuss and illustrate how
to disassemble a JBL A6000GTi,
the disassembly procedure for a
JBL A3000GTi is similar.
steps discuss and illustrate how
to disassemble a JBL A6000GTi,
the disassembly procedure for a
JBL A3000GTi is similar.
1. Disconnect and unmount the
amplifier from the vehicle. On a
soft surface, turn the amplifier over
to view the bottom. Using a T-25
screwdriver, remove the four large
Torx-head screws along the bottom
edges and set them aside (see
Figure 14).
soft surface, turn the amplifier over
to view the bottom. Using a T-25
screwdriver, remove the four large
Torx-head screws along the bottom
edges and set them aside (see
Figure 14).
2. Turn the amplifier over to view the
top. Using a 5 ⁄32-inch Allen wrench,
remove the four cap screws on the
clear cover and set them aside (see
Figure 14).
remove the four cap screws on the
clear cover and set them aside (see
Figure 14).
3. Slide the clear cover off and set it
aside (see Figure 14).
Figure 14. Removing bottom screws and
the clear cover from the A6000GTi
amplifier. NOTE: Do not remove the logo
badge assembly.
the clear cover from the A6000GTi
amplifier. NOTE: Do not remove the logo
badge assembly.
4. Using a T-15 screwdriver, remove the
four Torx-head screws around the
output panel and set them aside (see
Figure 15).
output panel and set them aside (see
Figure 15).
5. Repeat Step 4 for the input panel
(see Figure 15).
6. Remove the cover and set it aside
(see Figure 15).
Figure 15. Removing the input and
output screws and the cover from the
A6000GTi amplifier.
output screws and the cover from the
A6000GTi amplifier.
10
SETTING UP THE GTI AMPLIFIER
7. Using a T-15 screwdriver, remove the
two Torx-head screws on the display
board and set them aside
(see Figure 16 below). Disconnect
the ribbon cable from display board.
board and set them aside
(see Figure 16 below). Disconnect
the ribbon cable from display board.
8. Using a T-15 screwdriver, remove the
16 Torx-head screws on the
perforated shield and set them aside
(see Figure 16).
perforated shield and set them aside
(see Figure 16).
Figure 16. Removing the fuse from the
A6000GTi amplifier.
A6000GTi amplifier.
9. Using a small flat-blade screwdriver,
disconnect the wiring for the neon
tubes.
tubes.
10. Remove the perforated shield and
set it aside.
11. Replace the fuse or a neon tube as
follows:
• To replace the fuse on the ampli-
fier circuit board (see Figure 16),
use a 7⁄16-inch hex-socket driver
to remove the two fuse nuts and
then discard the failed fuse. Fasten
the replacement fuse
in place using the two fuse nuts.
use a 7⁄16-inch hex-socket driver
to remove the two fuse nuts and
then discard the failed fuse. Fasten
the replacement fuse
in place using the two fuse nuts.
• To replace a neon tube (see Figure
17), use a T-15 screwdriver and pli-
ers to remove the two
Torx-head screws, nuts and
washers on the two clamps that
hold each neon tube in place.
Remove the failed neon tube
and unscrew its wires.
ers to remove the two
Torx-head screws, nuts and
washers on the two clamps that
hold each neon tube in place.
Remove the failed neon tube
and unscrew its wires.
On the replacement neon tube, clip off
the cigarette lighter adapter. Then strip
the wires and screw the ends to the
connector. Refasten the two clamps
with hardware in place around the
neon tube. If needed, repeat this proce-
dure for another failed neon tube.
the cigarette lighter adapter. Then strip
the wires and screw the ends to the
connector. Refasten the two clamps
with hardware in place around the
neon tube. If needed, repeat this proce-
dure for another failed neon tube.
Figure 17. Neon tube locations on the
A6000GTi amplifier.
A6000GTi amplifier.
12. Reassemble the amplifier in reverse
order, as discussed in Steps 1
through 10.
through 10.
Failed
Fuse
Fuse
20" Neon Tube
(under shield)
(under shield)
6" Neon Tubes
11
TROUBLESHOOTING
SYMPTOM
LIKELY CAUSE
SOLUTION
No audio
No voltage at power
Check BATT+, REMOTE and
(Power LED is off)
or remote terminal
GND – terminals with VOM for
blown fuse or poor connection
blown fuse or poor connection
Replace internal fuse
(incorrect power
(see Replacing the Fuse
connections)
or Neon Tubes section)
No audio
Low or high voltage
Check BATT+ terminal with
(Power LED
at power terminal
VOM for voltage between
is flashing)
10 and 16 Vdc; if not within
limits, check vehicle’s
electrical system
limits, check vehicle’s
electrical system
No audio
Direct current on
Disconnect cable from
(Power and
speaker output(s)
REMOTE terminal; if Fault LED
Fault LEDs
is still on, contact local JBL
are on)
service center
No audio
Check for blocked vents
(Power and
temperature is over
or whether the ambient
Thermal LEDs
85° C
temperature is above 85° C
are on)
Distorted audio
Amplifier’s gain is
Properly adjust the
(I OPT and/or
set to High
LEVEL control (see
E OPT LED[s]
Setting Input
are on more
Sensitivity section)
than off)
Distorted audio
Defective source unit
Try new source unit
(I OPT and/or
E OPT LED[s]
E OPT LED[s]
Shorted speaker
Disconnect wires from
work correctly)
wires
SPEAKER OUTPUTS and
check for shorts between
wires, or between a wire and
the vehicle’s chassis
check for shorts between
wires, or between a wire and
the vehicle’s chassis
Music lacks
Speakers are out
Check speaker connections
“punch”
of phase
(see sections on speaker
connections)
connections)
Wrong output mode
Verify output mode setting
(see Making the Connections
section)
(see Making the Connections
section)
Neon tubes do
No voltage to neon tubes
Check LIGHTING
not light
for +12 Vdc
terminal with VOM
Neon tubes are dead
Replace neon tubes
(see Replacing the Fuse
or Neon Tubes section)
(see Replacing the Fuse
or Neon Tubes section)
3000 Watts Parallel Bridge
Thermal
CH 1
CH 2
Signal
-18 dB
-9 dB
E Opt
I Opt
Power
Fault
A3000GTi
6000 Watts Parallel Bridge
Power
Thermal
Signal
-18 dB
-9 dB
E Opt
I Opt
Fault
A6000GTi
Figure 18. Display indicates Power Output and Protection status.
Declaration of Conformity
We, Harman Consumer Group International
2, route de Tours
72500 Chateau-du-Loir
France
72500 Chateau-du-Loir
France
declare in own responsibility that the products
described in this owner’s manual are in compliance
with technical standards:
described in this owner’s manual are in compliance
with technical standards:
EN 55013:2001
EN 55020:2002
EN 55020:2002
Emmanuel Millot
Harman Consumer Group International
Chateau-du-Loir, France 05/04
JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797 USA
250 Crossways Park Drive, Woodbury, NY 11797 USA
© 2004 Harman International Industries, Incorporated
JBL and Crown are registered trademarks of
Harman International Industries, Incorporated.
Harman International Industries, Incorporated.
Part No. GTIAMPOM4/04
www.jbl.com
Features, specifications and appearance are subject to change without notice.