JBL 400IHD manual Specifications, Troubleshooting, Symptom Possible Problem Solution

SPECIFICATIONS

JBL On TIME™ 400iHD

Frequency Response: 75Hz – 20kHz

troubleshooting

sOUND QUALITY

Symptom Possible Problem Solution Note

English

Power Consumption: 30 Watts maximum

JBL On Time™ 400IHD Transducer: Phoenix SE 1-3/4" (45mm) x 2 (full range per channel)

Power: 6 Watts x 2 < 1% THD

Input Impedance: >5k Ohms

Signal-to-Noise Ratio: >75dB

No sound from the	No power to the unit	Make sure the wall power outlet or power strip has
JBL On Time™ 400IHD		power. Make sure all switches for outlet/power
speaker dock		strip are on and that all switches for speaker
		system are on.
	Incorrect source selection	Ensure that the correct source is selected; choose
		FM radio as a source. Turn up the volume. Check
		the system with a known good source, such as your
		iPod. Connect the Aux In cable to the headphone
		jack on your iPod.

Is the display on? If not, power is not getting to your JBL On Time 400IHD unit; try the solutions shown.

Input Sensitivity: 500mV RMS for rated power output

Power (USA/Canada): 120 Volts, 60Hz AC UL/CUL/CE-Approved

Dimensions: 14-3/16" x 5" x 3-1/16"

(W x D x H) (361mm x 128mm x 79mm) Weight: 2 lb (0.9kg)

Disposal: Do not dispose of this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary.

Important: Use UM4/AAA/LR03 alkaline-type nonrechargeable batteries only.

No sound or weak signal from	Bad reception from current location	Reposition your JBL On Time 400IHD unit until you	If you are still getting a weak signal
the AM/FM radio		find better reception.	from AM broadcasts, connect the
			external AM antenna to the AM
			antenna jack.
	Interference	Check surrounding area for any possible
		interference; wrap up any excess cables.
Sound comes only from one	iPod or audio cable is not seated	Make sure the iPod or Aux In cable is seated all the	If you are using an extension cable
side/channel	properly	way into the JBL On Time 400IHD unit.	or a third-party cable, make sure it’s
			a 3.5mm stereo male-to-male cable.
Distortion (static, crackling or	Noise may be caused by interference	Turn monitor off to see whether noise is eliminated.
hissing sounds)	from a monitor, cell phone or other	Move JBL On Time 400IHD unit’s cables farther
	transmitting device	away from monitor.
	JBL On Time 400IHD unit is being over-	Ensure that the unit is connected to an appropriate
	driven by an amplified audio source	source device. Make sure that all signal cables are
		inserted snugly into receptacles.
	Volume level may be too high	Check volume of source device; some devices
		will distort the output signal if the volume is set to
		Maximum.
Too much bass or treble	Check the EQ setting on your iPod or	We recommend that the source device EQ be set
	source device	to Flat or Off.
JBL On Time 400IHD unit emits	Input cables not plugged in properly	Check input cable connection.
a loud hum or buzzing noise
Speaker system experiences	Input cable may be picking up	Wrap up excess input cable to make it as short
radio frequency interference	interference	as possible.
or picks up a radio station		Purchase a ferrite clamp and attach it over the
		input cable; a clamp can be purchased at your local
		electronics store.

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