Jensen Car Stereo System JHD905 User Manual

JHD905  
Owner’s Manual  
JENSEN  
MUTE  
AM/FM  
DISP  
WB  
AUX  
TIMER  
JENSEN HEAVY DUTY  
VOL+  
AUDIO  
MENU  
TUN  
TUN  
+
FM  
VOL-  
SEEK  
+
SEEK  
AM/FM/WB RECEIVER  
JHD905  
1
5
2
3
4
6
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Expand Contents

JHD905  
Package Contents  
JHD905 Radio  
Radio Mounting Bracket  
Three (3) 10-16 x 3/4” Stainless Steel PPH Screws  
Three (3) 10-32 x 5/8” Stainless Steel PPH Screws  
Three (3) 10-32 Stainless Steel Hex Nuts  
Three (3) #10 Stainless Steel Washers  
Four (4) M4 x .7 x 8MM Stainless Steel Hex Screws with Captivated Washers  
Wiring Harness  
Auxiliary Input Patch Cord  
Owner’s Manual  
Owner’s Manual  
JHD905  
JHD905 Radio  
Thank You!  
Thank you for choosing  
a
Jensen product. We hope you will find the instructions in this owner’s  
If you take few minutes to look through it, you’ll learn how to use all  
the features of your new Jensen receiver for maximum enjoyment.  
manual clear and easy to follow  
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a
System Features  
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2
4
Installation  
Wiring  
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6
Basic Operation.  
Tuner Operation  
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7
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9
Weather Band Operation  
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10  
11  
12  
JHD905  
Troubleshooting  
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Specifications  
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Owner’s Manual  
JENSEN  
Features  
Features of the Jensen JHD905 mobile audio system include:  
Waterproof  
JENSEN  
uV and Corrosion Resistant  
Electronic US/Euro AM/FM Tuner  
30 Programmable Presets (12 AM, 18 FM)  
MUTE  
DISP  
AM/FM  
AUX  
WB  
TIMER  
Non-Volatile Memory for User Settings and Preset Memories  
7-Channel NOAA Weather Band  
Weather Alert  
MUTE  
DISP  
AM/FM  
AUX  
WB  
JENSEN HEAVY DUTY  
TIMER  
VOL+  
AUDIO  
MENU  
TUN  
TUN  
+
FM  
Auxiliary Audio Input  
VOL-  
JENSEN HEAVY DUTY  
2-Channel Amplified Audio Output  
Backlit Controls with Selectable Illumination Color  
Daylight Readable Display  
SEEK  
SEEK  
+
VOL+  
AM/FM/WB RECEIVER  
JHD905  
Clock with 30-day Backup Power  
Work Timer  
1
2
3
4
5
6
N
I
X
U
A
Audible Beep Confirmation Tone  
AUDIO  
MENU  
TUN  
TUN  
+
2
VOL-  
SEEK  
SEEK  
+
AM/FM/WB RECEIVER  
JHD905  
1
5
2
3
4
6
Radio  
Mounting Bracket  
N
I
X
U
A
Self-Tapping  
Screws (3)  
Washers  
Machine Screws  
with Nuts (3)  
Auxiliary Input  
Patch Cord  
M4 Machine  
Screws (4)  
Wiring Harness  
3
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JHD905  
Installation  
Mounting the Bracket  
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.  
Mounting Stack  
Mounting machine screw  
Bracket metal  
Vehicle mounting surface  
Washer  
Nut  
Self-Tapping  
Screws  
(Hole size 7/32")  
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.  
CAUTION! Do not over tighten the 4 mounting screws. Hand tighten only.  
Regular  
Mounting  
Overhead  
Mounting  
4
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JHD905  
Wiring  
The wiring diagram depicts all the wiring connections required for proper operation of the unit.  
Antenna Connector  
(Black Wire)  
9-Pin Connector  
(Male)  
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.  
3A Fuse  
+
Speaker  
Left  
(White)  
Accessory  
(Red)  
Left Speaker -  
(White/Black)  
Ground  
(Black)  
+
Speaker  
Right  
(Gray)  
Right  
Speaker  
(Gray/Black)  
-
5
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JHD905  
Basic Operation  
1. Power  
Press the power button (1) momentarily to turn the unit on or off. This button is also used to access the  
software version number. To briefly display the software version on the LCD, press and hold the power  
button for more than five seconds.  
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.  
3. Display  
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).  
4. Liquid Crystal Display  
The Liquid Crystal Display (LCD) panel (4) displays the frequency, time and activated functions.  
Basic Operation  
5a  
2
4
3
6
1
JENSEN  
7a  
MUTE  
DISP  
AM/FM  
AUX  
WB  
TIMER  
JENSEN HEAVY DUTY  
8a  
VOL+  
TIMER  
AUDIO  
MENU  
AM  
TUN  
TUN  
+
9
8b  
VOL-  
SEEK  
+
SEEK  
7b  
AM/FM/WB RECEIVER  
JHD905  
1
2
3
4
5
6
5b  
6
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JHD905  
5. Auxiliary Input Function  
To connect a portable audio device (MP3 player, iPOD, etc.) to the JHD905, connect the headphone or  
line level output of the device to the 1/8" auxiliary input jack of the JHD905 (5b) using the audio patch  
cord (included). Press AUX (5a) to select auxiliary input mode.  
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.  
7. Volume  
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.  
8. Setting the Clock  
To set the clock to display the current time, press the DISP button (3) 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.  
9. Audio and Menu Adjustment  
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.  
Menu Adjustment  
Press the AUDIO/MENU button (9) 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+ (7a) or  
VOL- (7b) to adjust that 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:  
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.  
7
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JHD905  
Tuner Operation  
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: If the unit is programmed for European operation, the sequence will be MW1, MW2,  
FM1, FM2 and FM3.  
11. Manual Tuning  
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.  
12. Seek Tuning  
Press SEEK- (12a) or SEEK+ (12b) momentarily to automatically tune the frequency down or up to  
the next strong station.  
Radio and Weather Band Operation  
10  
14  
JENSEN  
MUTE  
DISP  
AM/FM  
AUX  
WB  
TIMER  
JENSEN HEAVY DUTY  
11a  
11b  
VOL+  
AUDIO  
MENU  
AM  
TUN  
TUN  
+
VOL-  
CH2  
SEEK  
+
SEEK  
AM/FM/WB RECEIVER  
JHD905  
1
5
2
3
4
6
12a  
12b  
13  
8
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JHD905  
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) and 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 and then press a preset button. The unit will automatically tune to the  
corresponding stored station.  
NOTE: Preset buttons recall channels 1-6 on weather band and cannot be set by the user.  
Weather Band Operation  
14. Accessing the Weather Band  
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).  
How many stations can I expect to receive?  
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.  
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.  
How will I know I am tuned to the weather band?  
When you select the weather band, the “WB” icon will appear on the display panel, along with the current  
channel indication. Press TUN+ (11b) or TUN- (11a) to tune to each of the seven channels until you find the  
weather band station broadcasting in your area.  
NOAA Weather Alert  
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.  
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.  
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.  
NOTE: If the unit is programmed for European operation, the WB function will be disabled.  
9
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JHD905  
Troubleshooting  
Problem  
Cause  
Corrective Action  
No power.  
Vehicle ignition switch is not on If the power supply is connected to  
the vehicle accessory circuits but  
the engine is not moving, switch the  
ignition key to “ACC”  
The 3A fuse is blown  
Replace the 3A fuse  
No reception  
Volume turned down too low  
Adjust volume until sound is heard  
Wiring not connected properly Check wiring connections  
Antenna cable not connected Insert antenna cable firmly  
Radio does not work  
Volume too high or too Preset volume is set incorrectly Use the Menu adjustment (page 7)  
low when the radio is  
turned on  
to change preset volume to desired  
level  
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 Weather alert programmed to Program to “on” (setup menu)  
function “off”  
NOTE: Proper care and cleaning is essential to optimal operation. The JHD905 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.  
10  
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JHD905  
Specifications  
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)  
FM Tuner  
Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5-108.0  
FM Mono Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5uV  
Stereo Separation @ 1 kHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25dB  
AM Tuner  
Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522-1710  
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <30uV  
Weather Band  
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1uV  
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.  
© 2007 ASA Electronics Corporation  
v.071807  
11  
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