Sounding Audio JHD910 AM/FM/Weather Band Recciver User Manual JHD910

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Document ID	704340
Application ID	/dV/Law8SJTF3Ic//U5xzw==
Document Description	user manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	90.24kB (1128019 bits)
Date Submitted	2006-09-13 00:00:00
Date Available	2006-09-15 00:00:00
Creation Date	2002-05-31 08:23:56
Producing Software	Acrobat Distiller 5.0.5 (Windows)
Document Lastmod	2006-08-30 14:41:44
Document Title	JHD910.fm
Document Creator	FrameMaker 7.0
Document Author:	User 1

Thank You!
Thank you for choosing a Jensen product. We hope you will find the instructions in this owner’s
manual clear and easy to follow. If you take a few minutes to look through it, you’ll learn how to
use all the features of your new Jensen receiver for maximum enjoyment.
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Basic Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Tuner Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
JHD910
Weather Band Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Owner’s Manual
JENSEN
MUTE
JENSEN
DISP
AM/FM
WB
AUX
TIMER
HEAVY DUTY
VOL+
TUN
FM
AUDIO
MENU
TUN
VOL-
SEEK
SEEK
JHD910
AU
AM/FM/WB RECEIVER
IN
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Features
Features of the Jensen JHD910 mobile audio system include:
•
Waterproof
•
uV and Corrosion Resistant
•
Electronic US/Euro AM/FM Tuner
•
30 Programmable Presets (12 AM, 18 FM)
•
Non-Volatile Memory for User Settings and Preset Memories
•
7-Channel NOAA Weather Band
•
Weather Alert
•
Auxiliary Audio Input
•
Headphone Output
•
2-Channel Amplified Audio Output
•
Backlit Controls with Selectable Illumination Color
•
Daylight Readable Display
•
Clock with 30-day Backup Power
•
Work Timer
•
Audible Beep ConfirmationTone
JHD910
Installation
Package Contents
Mounting the Bracket
JHD910 Radio
Radio Mounting Bracket
Headphone Mounting Bracket
Five (5) 10-16 x 3/4” Stainless Steel PPH Screws
Five (5) 10-32 x 5/8” Stainless Steel PPH Screws
Five (5) 10-32 Stainless Steel Hex Nuts
Four (4) M4 x .7 x 8MM Stainless Steel Hex Screws with Captivated Washers
Wiring Harness
Auxiliary Input Patch Cord
Owner’s Manual
Two options are provided for mounting the bracket (self-tapping screws or machine screws with
nuts) to ensure a mounting option ideal for your mounting location. Avoid obstructing airflow to the
rear cooling fins on the radio.
Note: Mounting holes should be drilled to 7/32”. Before drilling the mounting holes, make
sure the area behind the panel where the holes are desired is clear of wires and fuel,
vacuum and or brake lines.
Owner’s Manual
JHD910 Radio
JENSEN
MUTE
JENSEN
DISP
AM/FM
WB
AUX
TIMER
HEAVY DUTY
VOL+
TUN
AUDIO
MENU
TUN
VOL-
SEEK
SEEK
AM/FM/WB RECEIVER
Self-Tapping
Screws
(Hole size 7/32")
JHD910
AU
•
•
•
•
•
•
•
•
•
•
IN
Radio
Mounting Bracket
Headphone
Mounting Bracket
Machine Screws
with Nuts
(Hole size 7/32")
Attaching the Radio
Once the bracket is securely mounted, use the four included M4 machine screws to fasten the
bracket to the back of the radio. Alternately, the radio can be mounted directly to the instrument
panel if access to the rear of the instrument panel is available.
Self-Tapping
Screws (3)
Self-Tapping
Screws (2)
Machine Screws
with Nuts (3)
Machine Screws
with Nuts (2)
M4 Machine
Screws (4)
Regular
Mounting
Overhead
Mounting
Auxiliary Input
Patch Cord
Wiring Harness
JHD910
Installation (continued)
Wiring
Mounting the Headphone Bracket
The wiring diagram depicts all the wiring connections required for proper operation of the unit.
Three options are provided for mounting the bracket (self-tapping screws, machine screws with
nuts or double-sided tape) to ensure a mounting option ideal for your mounting location.
Alternately, the headphone can be mounted directly to the instrument panel if access to the rear
of the instrument panel is available.
Note: Mounting holes should be drilled to 7/32”. Before drilling the mounting holes, make
sure the area behind the panel where the holes are desired is clear of wires and fuel,
vacuum and or brake lines.
Antenna Connector
(Black Wire)
Self-Tapping
Screws
(Hole size 7/32")
Machine Screws
with Nuts
(Hole size 7/32")
1/4”HEADPHONE OUTPUT
PCB
9-Pin Connector
(Male)
NUT
Black Wire
Double-Sided
Tape
WASHER
RUBBER CAP
Heat Shrink Tubing
VEHICLE PANEL
OR HEADPHONE
MOUNTING BRACKET
3A FUSE
Left Speaker +
(White)
Left Speaker (White/Black)
Right Speaker +
(Gray)
Ground
(Black)
Accessory
(Red)
Right Speaker (Gray/Black)
Note: Do not connect the red wire to a
constant power connection. It should be
connected to a vehicle connection with
switched power, such as IGN or ACC.
JHD910
Basic Operation
5. Auxiliary Input Function
1. Power
To connect a portable audio device (MP3 player, iPOD, etc.) to the JHD910, connect the
headphone or line level output of the device to the 1/8" auxiliary input jack of the JHD910 (5b)
using the audio patch cord (included). Pres AUX (5a) to select auxiliary input mode.
Press the power button (1) momentarily to turn the unit on or off. This button is also used to
access the version number of the software. To briefly display the software version on the LCD,
press and hold the power button for more than five seconds.
6. Timer
Press TIMER (6) momentarily to directly access timer mode. Briefly press TIMER to start the timer
function, and the “TIMER” icon will flash in the display. Press TIMER again to stop the timer, and
the “TIMER” icon will remain in the display (without flashing). Press the button again briefly to
resume the timer, or press and hold it for three seconds to reset it to zero and to remove the
“Timer” icon from the display.
2. Mute
Press MUTE (2) to silence the audio output in tuner, weather band or auxiliary input mode.
When the audio output is silenced, “MUTE” will appear in the display. If the mute feature is
activated when the unit is turned off, the volume will default to the programmed turn-on level
when the unit is turned back on.
7. Volume
3. Display
Briefly press VOL+ (7a) or VOL- (7b) to adjust the volume up or down one step. Press and hold
VOL+ or VOL- for more than one second to continuously adjust the volume level until the button is
released. The current volume level (0 to 40) will appear in the display when the volume is
adjusted, returning to the default display three seconds after the adjustment is complete.
Press DISP (3) momentarily to toggle the LCD display between function mode (showing tuner,
auxiliary input or weather band information, depending on which mode is currently activated)
and clock mode (showing the time).
8. Setting the Clock
4. Liquid Crystal Display
To set the clock to display the current time, press DISP for more than three seconds to enter clock
setting mode, and the time will flash in the display. Press TUN- (8a) to adjust the hours or TUN+
(8b) to adjust the minutes. When no adjustment is made for ten seconds, the time will be set and
normal operation will resume.
The Liquid Crystal Display (LCD) panel (4) displays the frequency, time and activated functions.
Basic Operation
9. Audio and Menu Adjustment
5a
Audio Adjustment
Press AUDIO/MENU (9) momentarily to step through the following audio adjustment options:
Bass, Treble and Balance (left to right). When the desired option appears in the display, press
VOL+ (7a) or VOL- (7b) to adjust that audio feature. When no adjustments have been made for
three seconds, the unit will resume normal operation.
JENSEN
MUTE
JENSEN
DISP
AM/FM
WB
AUX
7a
TIMER
HEAVY DUTY
Menu Adjustment
Press AUDIO/MENU for more than three seconds to enter menu adjustment mode and adjust any
of the menu options: When the desired option appears in the display, press VOL+ or VOL- to
adjust that menu option. When no adjustments have been made for three seconds, the unit will
resume normal operation. The following menu options may be adjusted using this feature:
8a
VOL+
TIMER
TUN
AM
AUDIO
MENU
TUN
8b
VOL-
JHD910
AU
AM/FM/WB RECEIVER
7b
SEEK
SEEK
IN
5b
•
Beep Confirm (On or Off) - Determines if a beep will be heard each time a button is pressed.
•
Operation Region (USA or Euro) - Selects the appropriate operating region.
•
Clock Display (12 or 24) - Selects a 12-hour or 24-hour clock display.
•
Display Brightness (Low, Mid or High) - Determines brightness level of the display.
•
Backlight Color (Amber or Green) - Determines the backlight color of the unit.
•
Turn On Volume (0-40) - Selects desired volume level for the unit to assume when turned on.
•
WB Alert (On or Off) - Determines if the weather band alert feature is activated.
JHD910
Tuner Operation
13. Preset Stations
Six numbered preset buttons (13) store and recall stations for each AM and FM band. To store a
station, select a band (if needed), then select a station. Hold a preset button for three seconds.
The current station will be stored, and the corresponding preset number will appear in the
display. To recall a station, select a band (if needed). Press a preset button momentarily, and the
unit will tune to the corresponding stored station.
10. Select a Band
Press AM/FM (10) momentarily to directly access tuner mode from any other function mode.
When the unit is already in tuner mode, briefly press AM/FM to change between two AM bands
(AM1 and AM2) and three FM bands (FM1, FM2 and FM3).
Note: Preset buttons recall channels 1-6 on weather band and cannot be set by the user.
Note: If the unit is programmed for European operation, the sequence will be MW1, MW2,
FM1, FM2 and FM3.
Weather Band Operation
11. Manual Tuning
14. Accessing the Weather Band
Press TUN- (11a) or TUN+ (11b) momentarily to tune the frequency one step higher or lower.
Press and hold TUN+ or TUN- for more than one second to tune continuously in the selected
direction until the button is released.
Press WB (14) to directly access the weather band mode from any other function mode.
What is the NOAA Weather Radio?
This is a nationwide system that broadcasts local weather emergency information 24 hours a day. The
U.S. network has more than 530 stations covering the 50 states as well as the adjacent costal waters,
Puerto Rico, the U.S. Virgin Islands and the U.S. Pacific Territories. Each local area has its own
transmitting station and there are a total of seven broadcasting frequencies used: 162.400MHz (CH1),
162.425MHz (CH2), 162.450MHz (CH3), 162.475MHz (CH4), 162.500MHz (CH5), 162.525MHz
(CH6) and 162.550MHz (CH7).
12. Seek Tuning
Press SEEK- (12a) or SEEK+ (12b) momentarily to automatically tune the frequency down or up
to the next strong station.
How many stations can I expect to receive?
Radio and Weather Band Operation
10
Since the broadcasts are local weather and information, the transmission power is usually very low
(much less than AM or FM stations) so you will usually receive only one station unless you are on the
edge of two or more broadcast signals. The most you will receive will be two or three, and that is rare.
14
Is it possible I won't receive any stations?
Depending on location, it’s possible you will receive a very weak signal or none at all. Also, similar to
AM and FM signals, weather band signals are subject to surrounding conditions, weather, obstructions
of the signal by hills or mountains, etc. If no NOAA signals are found/received, the “NO SIG” icon will
flash in the display and the tuner will scan all seven NOAA frequencies every 30 seconds.
JENSEN
MUTE
JENSEN
AM/FM
DISP
WB
AUX
How will I know I am tuned to the weather band?
TIMER
HEAVY DUTY
TUN
AM
AUDIO
MENU
NOAA Weather Alert
TUN
AM/FM/WB RECEIVER
SEEK
SEEK
JHD910
13
The Weather Alert function can be turned “on” or “off” by the Audio/Menu key, as described on page
three. When “ON” (default), the Weather Alert icon appears in the display and the weather tuner
remains active, even when the radio is turned off (as long as the power is still applied to the radio). If a
weather alert is issued, the radio will turn on and play the announcement. for 60 seconds, then turn
back off and revert to weather alert monitor mode.
AU
The Weather Alert function adds an additional level of user safety by automatically switching from the
current function mode to weather band mode for a minimum of 60 seconds if a NOAA warning tone
(1050 Hz) is received/detected. If no additional warning tone is received for 60 seconds, the unit will
switch back to the last known function mode.
11b
VOL-
CH2
When you select the weather band, the “WB” icon will appear on the display panel, along with the
current channel indication. Press TUN+ or TUN- to tune to each of the seven channels until you find
the weather band station broadcasting in your area.
11a
VOL+
12a
IN
If the Weather Alert function is set to “OFF”, no Weather Alert icon appears in the display. The radio
will not respond to any weather alerts when it is off and will not automatically switch to the weather
band if an alert is issued.
12b
Note: If the unit is programmed for European operation, the WB function will be disabled.
JHD910
Specifications
Troubleshooting
Problem
Cause
General
Power Supply Requirements . . . . . . . . . . . . . . . . . . . . . . . . . DC 12 Volts, Negative Ground
Chassis Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.6 (W) x 47.5 (D) x 86 (H)
Loading Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -8 ohms per channel
Tone Controls . . . . . . . . . . . . . . . . . . . Bass (at 100 Hz), ±10 dB; Treble (at 10 kHz), ±10 dB
Current Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 Ampere (max)
Corrective Action
No power.
Vehicle ignition switch is not
on.
The 3A fuse is blown.
Replace the 3A fuse.
No reception
Volume turned down too low.
Adjust volume until sound is heard.
If the power supply is connected to
the vehicle accessory circuits but
the engine is not moving, switch the
ignition key to “ACC”.
FM Tuner
Tuning range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87.5-108.0
FM mono sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5uV
Stereo separation @ 1 kHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25dB
Wiring not connected properly. Check wiring connections.
Radio does not work
Antenna cable not connected.
Volume too high or too
low when the radio is
turned on
Preset volume is set incorrectly Use the Menu adjustment (page
three) to change preset volume to
desired level
Insert antenna cable firmly.
LCD display is dark and Radio too hot
difficult to read
Turn radio off and allow to cool
down
No WB function
Programmed to “European”
Program to “USA” (setup menu)
Weather alert does not
function
Weather alert programmed to
“off”
Program to “on” (setup menu)
AM Tuner
Tuning range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .522-1710
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <30uV
Weather Band
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1uV
Note: Proper care and cleaning is essential to optimal operation. The JHD910 may be
cleaned with mild detergent/water mixture and a soft cloth to remove grease and grime.
Do not pressure wash directly on the radio.
Amplifier
Total system power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Watts Maximum
Signal to Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >70dB
Specifications subject to change without notice.
Note: The manufacturer is not responsible for any radio or TV interference caused by
unauthorized modifications to this equipment. Such modifications could void the
User’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation.
www.asaelectronics.com
© 2006 ASA Electronics Corporation
v.082506

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