JBL CS50.4 - Manual (Page 4)

TROUBLESHOOTING
SYMPTOM LIKELY CAUSE SOLUTION
No audio No voltage at BATT+ Check voltages at
(POWER LED or REM terminals, amplifier terminals
are off) or bad or no ground with VOM
connection
No audio Amplifier is Make sure amplifier
(POWER overheated cooling is not blocked
LEDs are on) at mounting location;
verify speaker system
impedance is within
specified limits
Voltage more than 16V Check vehicle
or less than 8.5V on charging system
BATT+ connection
SYMPTOM LIKELY CAUSE SOLUTION
No audio Voltage less than 9V on Check vehicle
(POWER BATT+ connection charging system
LEDs flash)
DC voltage on Amplifier may need
amplifier output service; see enclosed
warranty card for
service information
Distorted audio 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
Distorted audio Short circuit in Remove speaker leads
and POWER speaker or wire one at a time to locate
LED flash shorted speaker or
wire, then repair
Music lacks Speakers are not Check speaker
“punch” connected properly connections for proper polarity
CONTROLS AND SETUP
SETTING THE
CROSSOVER(S)
Determine your system plans and set the
crossover mode switch accordingly. If
you plan to use the CS50.4 to drive full-
range speakers, set the crossover mode
to FLAT and skip to “Setting Input Sensi-
tivity.”
Initially set the crossover frequency
control midway. While listening to music,
adjust the crossover for the least per-
ceived distortion from the speakers,
allowing them to reproduce as much bass
as possible.
Systems using a separate subwoofer set
the crossover mode to HP (high pass) for
your full-range speakers. Adjust the
crossover frequency to limit bass and
provide increased system volume with
less distortion.
For subwoofers, choose the highest
frequency that removes vocal information
from the sound of the subwoofer.
If using the CS50.4 to drive a
subwoofer(s), set the crossover mode to
LP (low pass).
SETTING INPUT
SENSITIVITY
1. Initially turn the INPUT LEVEL control(s)
to minimum (counter clockwise).
2. Reconnect the (–) negative lead to the
vehicle’s battery. Apply power to the
audio system and play a dynamic music
track.
3. On the source unit, increase the vol-
ume control to 3/4 volume. Slowly
increase the INPUT LEVEL control(s)
toward three o’clock until you hear
slight distortion
in the music. Then reduce the INPUT
LEVEL slightly until distortion is no
longer heard.
NOTE: After the source unit is on, blue
LEDs (on the top panel) will light, indicat-
ing the amplifier is on. If not, check the
wiring, especially the remote connection
from the source unit. Also refer to
“Troubleshooting” guide below.
www.jbl.com
JBL Consumer Products
250 Crossways Park Drive,
Woodbury, NY 11797 USA
© 2004 Harman International Indus-
tries, Incorporated
JBL and Grand Touring are registered
trademarks of Harman International
Industries, Incorporated.
Part No. CSAMPOM3/04
Declaration of Conformity
We, Harman Consumer International
2, route de Tours
72500 Chateau-du-Loir
France
declare in own responsibility that the product
described in this owner’s manual is in compliance
with technical standards:
EN 55013:2001
EN 55020:2002
Emmanuel Millot
Harman Consumer International
Chateau-du-Loir, France 1/04
SPECIFICATIONS
CS200.1
• 1 x 236W RMS channel at 4 ohms and
≤1% THD + N
• Signal-to-noise ratio: 100dBA (reference 1W into 4 ohms)
• 1 x 338W RMS channel at 2 ohms, 14.4V supply and
≤1% THD + N
• Dynamic power: 464W at 2 ohms
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 302Hz (–3dB)
• Maximum input signal: 7.5V
• Maximum sensitivity: 260mV
• Output regulation: .073dB at 4 ohms
• Dimensions (L x W x H): 295x313x60mm
(11-5/8" x 12-5/16" x 2-3/8")
• Fuses: 20A x 2
CS50.4
• 4 x 67W RMS channels at 4 ohms and
≤1% THD + N
• Signal-to-noise ratio: 86dBA (reference 1W into 4 ohms)
• 4 x 82W RMS channels at 2 ohms, 14.4V supply and
≤1% THD + N
• 2 x 162W RMS channels at 4 ohms, 14.4V supply and
≤1% THD + N
• Dynamic power: 145W at 2 ohms
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 27kHz (–3dB)
• Maximum input signal: 6V
• Maximum sensitivity: 240mV
• Output regulation: .032dB at 4 ohms
• Dimensions (L x W x H): 384x313x60mm
(15-1/8" x 12-5/16" x 2-3/8")
• Fuses: 25A x 2
Features, specifications and appearance
are subject to change without notice.