Troubleshooting - JBL Power BPX1100.1 Owner's Manual

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INSTALLATION AND SETUP
For sealed enclosures, use DBO to
4. Locate the enclosed hardware bag
enhance the middle of the bass region.
and remove the four clips. Each clip
Set the HP FREQ control to 35Hz to 40Hz
has a square end and a larger round
and adjust the BOOST control to taste.
end. Using a round end, press two
This will make the bass sound bigger
clips onto each neon tube (e.g., Street
and fuller. Alternatively, for tighter-
Glow AN9 or equivalent), as shown in
sounding bass, set the HP FREQ control
Figure 9 below.
between 45Hz and 50Hz, and also adjust
5. For each tube, align both clips so the
the BOOST control according to your
square ends slide onto an exposed
preference.
extrusion edge, as shown in Figure 9.
Do not cover any screw holes. When
For infinite-baffle applications, set the
installed correctly, each neon tube
HP FREQ control to the speaker's F
will sit under an extrusion and not be
S
value (to keep the subwoofer from
visible when viewed from directly
trying to create bass below the
above.
resonant frequency) and adjust the
6. Route each neon tube's power cable
BOOST control to taste.
through its respective NEON hole on
the end panel (see Figure 9).
INSTALLING NEON TUBES
7. Slide the cover back into place and
(OPTIONAL)
reinstall its screws. Then, replace the
1. Using a Phillips screwdriver, remove
end panel and reinstall its screws.
all screws on the amplifier's
8. Finish the installation of the neon
output/power end panel and set them
tubes as instructed in their owner's
aside.
manual.
2. Using a 3⁄32-inch Allen wrench,
remove only the screws on the
amplifier's (top) clear cover and set
them aside.
3. Remove the end panel and slide the
cover off. Set both parts aside.
Lip
Neon
Tube
Neon Tube
and Clip
Installing A Clip
Clip
On Extrusion Lip
Clip
Clip
(side view)
Installed Neon Tube
Under Extrusion Lip
PROTECT
POWER
I-E OPT
Px600.2 Amplifier
(top view with clear cover off)
Figure 9.
Installing neon tubes in a JBL Px600.2 amplifier.
Installation is similar for other models.

TROUBLESHOOTING

SYMPTOM
No audio
(POWER LED
is off)
No audio
(PROTECT LED
flashes every
4 sec.)
No audio
(PROTECT
LED is on)
No audio
(PROTECT
and POWER
LEDs flash)
I-E/OPT LED
is on all times
(not flashing)
No audio
(PROTECT
LED is on)
Distorted audio
Distorted audio
and PROTECT
To Neon
LED flashes
Power
Supply
Music lacks
"punch"
To Neon
Power
Supply
Output/Power
End Panel
LIKELY CAUSE
SOLUTION
No voltage at BATT+
Check voltages at
or REM terminals,
amplifier terminals
or bad or no ground
with VOM
connection
DC voltage on
Amplifier may need
amplifier output
service; see enclosed
warranty card for
service information
Amplifier is
Make sure amplifier
overheated
cooling is not blocked
at mounting location;
verify speaker-system
impedance is within
specified limits (see
"Specifications" on the
next page)
Voltage less than 9V on
Check vehicle
BATT+ connection
charging system for
defective voltage
regulator
Amplifier is being
Check INPUT
overdriven
LEVEL setting;
see previous page
Voltage more than 16V
Check vehicle
or less than 8.5V on
charging system for
BATT+ connection
defective voltage
regulator
Input sensitivity is
Check INPUT
not set properly, or
LEVEL setting; or
amplifier or source
check speaker wires
unit is defective
for shorts or grounds
Short circuit in
Remove speaker leads
speaker or wire
one at a time to locate
shorted speaker or
wire, then repair
Speakers are not
Check speaker
connected properly
connections for
proper polarity
7

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