Jensen Car Stereo System JHD1120 User Manual

JHD1120  
AM/FM/WB/AUX-IN Heavy Duty Radio  
Installation and Operation Manual  
Guide d’installation et d’opération  
AS/PS  
DN  
UP  
PTY  
INFO  
MENU  
ENTER  
AM 1  
FM 2  
SAT 3  
iPod DISC  
WB M P3  
ST PS TITLE AR TISTCH. NA MECA T MEN U  
LD COMPOSERR PT IN TRDM ALARMSLEEP  
T
F
40W x 4  
JHD1120  
 
JHD1120  
INTRODUCTION  
System Features  
Content List  
Features of the Jensen JHD1120 mobile audio system include:  
Jensen Heavy Duty Radio  
Hardware Kit  
15AMP Fuse  
Installation Manual  
Quick reference Guide  
10 Character Alpha-Numeric Segmented LCD  
AM/FM US/EURO Tuner with 30 Presets (12 AM, 18 FM)  
RBDS (Radio Broadcast Data Service) with PTY Search  
Weatherband Tuner  
Mute  
Pre-set Equalizer - 5 settings (Flat, Rock, Pop, Classical, User)  
Electronic Bass, Treble, Balance and Fader Controls  
Output Power 40W x 4  
HARDWARE KIT CONTENTS  
Clock 12/24 Hour Selectable  
IR Wireless Remote Control Ready (sold separately)  
2-Wire Power with Non-Volatile Memory and Clock/Time Support  
Auxiliary Audio Input (Front 3.5mm Stereo Jack)  
FLANGE NUTS  
MOUNTING STRAP  
DIN SLEEVE  
REMOVAL TOOL  
MOUNTING BUSHING  
MOUNTING SCREW  
1
 
JHD1120  
SAFETY INFORMATION  
When Driving  
Keep the volume level Iow enough to be aware of the road and traffic conditions.  
When Washing Your Vehicle  
Do not expose the product to water or excessive moisture. Moisture can cause electrical  
shorts, fire or other damage.  
When Parked  
Parking in direct sunlight can produce very high temperatures inside your vehicle. Give the  
interior a chance to cool down before starting playback.  
Use the Proper Power Supply  
This product is designed to operate with a 12 volt DC negative ground battery system.  
WARNING:  
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS  
EQUIPMENT TO RAIN OR MOISTURE.  
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK AND ANNOYING  
INTERFERENCE, USE ONLY THE RECOMMENDED ACCESSORIES.  
2
 
JHD1120  
INSTALLATION  
This unit is designed for installation in vehicle cabs with an existing 1-DIN radio opening. In  
many cases, a special installation kit will be required to mount the radio to the dashboard. See  
the dealer where the radio was purchased for kit availability. Always check the kit application  
before purchasing to make sure the kit works with your vehicle.  
problem is corrected. Once proper operation is achieved, turn the accessory switch off  
and proceed with final mounting of the chassis.  
7. Carefully slide the radio into the mounting sleeve making sure it is right-side-up until it is  
fully seated and the spring clips lock it into place.  
8. Attach one end of the  
Before You Begin  
perforated support strap  
Dashboard  
1. Disconnect Battery  
(supplied) to the screw  
Before you begin, always disconnect the battery negative terminal.  
2. Remove Transport Screws  
stud on the rear of the  
chassis using the hex nut  
provided. Fasten the  
other end of the  
perforated strap to a  
secure part of the  
dashboard either above  
or below the radio using  
the screw and plain  
washer provided. Bend  
the strap, as necessary,  
to position it. Some  
Support Strap  
Screw Stud  
Plain Washer  
Important Notes  
Screw (5 x 25mm)  
Before final installation, test the wiring connections to make sure the unit is connected  
properly and the system works.  
Use only the parts included with the unit to ensure proper installation. The use of  
unauthorized parts can cause malfunctions.  
Consult with your nearest dealer if installation requires the drilling of holes or other  
modifications to your vehicle.  
Install the unit where it does not interfere with driving and cannot injure passengers during  
a sudden or emergency stop.  
If the installation angle exceeds 30º from horizontal, the unit might not give optimum  
performance.  
Avoid installing the unit where it will be subject to high temperatures from direct sunlight,  
hot air, or from a heater, or subject to excessive dust, dirt or vibration.  
Rubber Bushing  
Hex Nut (5mm)  
vehicle installations  
provide cavity for rear  
support. In these applications, place the rubber bushing over the screw stud and insert  
the radio.  
CAUTION: The perforated rear support strap or rear rubber mounting bushing must  
be used in the installation of the radio. Installation without either may result in  
damage to the radio or the mounting surface and void the manufacturer’s warranty.  
9. Test radio operation by referring to the operating instructions for the unit.  
DIN Front Mount  
1. Slide the mounting sleeve off of the chas-  
sis if it has not already been removed. If it  
is locked into position, use the removal  
keys (supplied) to disengage it. The  
removal keys are depicted in “Removing  
the Unit” on page 3.  
2. Check the dashboard opening size by  
sliding the mounting sleeve into it. If the  
opening is not large enough, carefully cut  
or file as necessary until the sleeve easily  
slides into the opening. Do not force the  
sleeve into the opening or cause it to bend  
or bow. Check that there will be sufficient  
Dashboard  
Bend Tabs  
Screw Stud  
182  
Removing the Unit  
To remove the radio after  
Sleeve  
53  
installation, remove the plastic end  
caps, insert the removal keys  
straight back until they click, and  
then pull the radio out. If removal  
keys are inserted at an angle, they  
will not lock properly to release the  
unit.  
Removal Key  
Reconnect Battery  
space behind the dashboard for the radio chassis.  
3. Locate the series of bend tabs along the top, bottom and sides of the mounting sleeve.  
With the sleeve fully inserted into the dashboard opening, bend as many of the tabs  
outward as necessary to firmly secure the sleeve to the dashboard.  
When wiring is complete, reconnect  
the battery negative terminal.  
Removal Key  
4. Place the radio in front of the dashboard opening so the wiring can be brought through the  
mounting sleeve.  
5. Follow the wiring diagram carefully and make certain all connections are secure and  
insulated with crimp connectors or electrical tape to ensure proper operation.  
6. After completing the wiring connections, turn the unit on to confirm operation (vehicle  
accessory switch must be on). If the unit does not operate, recheck all wiring until the  
3
 
JHD1120  
WIRING  
4
 
JHD1120  
BASIC OPERATION  
Mute  
21  
19  
18  
14  
Press the MUTE button (17) to mute the audio output. Press MUTE again to restore the audio  
output to the previous level.  
Mode  
AS/PS  
3
DN  
UP  
Press the MODE button (4) to select a different mode of operation, as indicated on the display  
panel. Available modes include the following: Tuner (AM/FM) > Auxiliary. Tuner is the default  
source when a prior source is no longer available.  
1
PTY  
INFO  
16  
MENU  
ENTER  
12  
AM 1  
FM 2  
iPod DISC  
WB M P3  
ST PS TITLE AR TISTCH. NA MECA T MEN U  
LD COMPOSERR PT IN TRDM ALARMSLEEP  
T
F
SAT  
3
20  
Reset  
40W x 4  
JHD1120  
The reset button should be activated for the following reasons:  
initial installation of the unit when all wiring is completed  
function buttons do not operate  
error symbol on the display  
11 17  
8
6
2
4
15  
7
9
10  
13  
5
Use a ball point pen or thin metal object to press the RESET button (20). This may be  
necessary should the unit display an error code.  
Power On/Off  
Audio Menu  
Press the rotary encoder POWER button (1) to turn the unit on or off. The unit will resume at  
Press the AUDIO button (3) to access the audio menu. You can navigate through the audio  
menu items by pressing the AUDIO button repeatedly. Once the desired menu item appears  
on the display, adjust that option by turning the rotary encoder (1) within 5 seconds. The unit  
will automatically exit the audio menu after five seconds of inactivity. The following menu items  
can be adjusted.  
the last mode selected (Tuner, Auxiliary, etc.).  
POWER  
Bass Level  
Use the rotary encoder (1) to adjust the Bass level range from “-7” to “+7”.  
Treble Level  
Use the rotary encoder (1) to adjust the Treble level range from “-7” to “+7”.  
Balance  
Adjusting Balance controls the relative level between the left and right speakers in each pair.  
Use the rotary encoder (1) to adjust the Balance between the left and right speakers from “L  
12” to “R12”.  
Fader  
Volume Control  
Adjusting Fade controls the relative level between the front and rear speaker pairs. Use the  
rotary encoder (1) to adjust the Fader between the rear and front speakers from “R12” to “F12”.  
To increase the volume, turn the rotary encoder (1) to the right. To decrease the volume, turn  
the rotary encoder to the left.  
The maximum volume setting is 40.  
5
 
JHD1120  
System Menu  
1. Press and hold the PTY/MENU button (2) for more than 2 seconds to enter the system  
menu. The first menu item, “KEYBEEP”, will appear on the display.  
2. Press the TUNE/SEEK |<< / >>| (18, 19) button repeatedly to navigate the system menu.  
3. Press the INFO/ENTER button (16) to select the desired item.  
4. Press the INFO/ENTER button again to adjust the selected menu item.  
The following items can be adjusted:  
KEYBEEP (Clk (click) / Bep (beep) / Off): Turn the audible beep On/Off (heard when  
functions/buttons are selected).  
LCDLITE (1-10): Adjust LCD brightness.  
TUNING (USA / EURO): Set frequency spacing for various regions.  
P-- CLOCK (1-10 / Off)  
CLK FMT (12Hour / 24Hour): Select 12 or 24 hour display mode.  
CLK (HH : MM): Set clock.  
Press the INFO/ENTER button (16) to view the clock set screen.  
Press the INFO/ENTER button to move to the next digit.  
Press the TUNE/SEEK |<< / >>| (18, 19) buttons to adjust the selected digit.  
PREONLY (On / Off): Turn preset-only tuning on/off.  
BAT ALRM (Off / On): When ON, radio will alert when vehicle battery voltage is below  
10.8 VDC.  
BAT OFF (Off / On): When ON, radio will automatically turn off when vehicle battery  
voltage is below 10.8 VDC.  
RESET ALL <ENTER>: Press the INFO/ENTER button (16) to return the EEPROM to  
factory default set up values.  
Equalizer  
Press the EQ/LOUD button (11) to choose one of the following pre-defined bass and treble  
curves: USER > FLAT > ROCK > CLAS(SICAL) > POP.  
Loudness  
Press and hold the EQ/LOUD button (11) to toggle loudness on/off. When listening to music at  
low volumes, this feature will boost the bass and treble ranges to compensate for the  
characteristics of human hearing.  
Auxiliary Input  
To access an auxiliary device:  
1. Connect the portable audio player to the AUX IN on the front panel (17).  
2. Press the MODE button (4) to select “Auxiliary” mode.  
3. Press MODE again to cancel “Auxiliary” mode and go to the next mode.  
Liquid Crystal Display (LCD)  
The current frequency and activated functions are shown on the LCD panel (21).  
NOTE: LCD panels may take longer to respond when subjected to cold temperatures for  
an extended period of time. In addition, the visibility of the characters on the LCD may  
decrease slightly. The LCD display will return to normal when the temperature increases  
to a normal range.  
6
 
JHD1120  
Setting the Clock  
To set the clock to display the current time, turn the vehicle ignition on and turn the radio on.  
Enter the system menu and adjust the clock by selecting the “CLK” menu item.  
Press the INFO/ENTER button (16) to view the clock set screen.  
Press the TUNE/SEEK |<< / >>| (18, 19) buttons to adjust the selected digit.  
Press the INFO/ENTER button to move to the next digit.  
Press the TUNE/SEEK |<< / >>| (18, 19) buttons to adjust the selected digit.  
When no adjustment is made for five seconds, the time will become set and normal operation  
will resume.  
Display Modes  
Press the T/F button (12) to switch between LCD clock display and source display.  
7
 
JHD1120  
TUNER OPERATION  
Automatically Store / Preset Scan (AS/PS)  
Automatically Store  
21  
19  
18  
14  
Select an AM or FM band. Press and hold the AS/PS button (14) for more than 2 seconds to  
automatically select 18 strong stations (12 for AM). “FM STORE” or “AM STORE” appears on  
the screen and the new stations replace any stations already stored.  
AS/PS  
3
DN  
UP  
Preset Scan  
1
PTY  
INFO  
Select a band. Press AS/PS (14) to scan stations stored in the current band. The unit will  
pause for 5 seconds at each preset station. Press AS/PS again to stop scanning when the  
desired station is reached.  
16  
MENU  
ENTER  
12  
AM 1  
FM 2  
iPod DISC  
WB M P3  
ST PS TITLE AR TISTCH. NA MECA T MEN U  
LD COMPOSERR PT IN TRDM ALARMSLEEP  
T
F
SAT  
3
20  
40W x 4  
JHD1120  
RBDS Operation  
This unit is equipped to display RBDS (Radio Broadcast Data Service) information when  
broadcast by the radio station.  
11 17  
8
6
2
4
15  
7
9
10  
13  
5
NOTE: Radio stations broadcasting RBDS may not be available in your listening area.  
Select a Band  
In FM radio mode, press the PTY/MENU button (2) to list the following Program Type (PTY)  
options: ANY / News / Information / Sports / Talk / Rock / Classic Rock / Adult Hits / Soft Rock /  
Top 40 / Country / Oldies / Soft / Nostalgia / Jazz / Classical / Rhythm and Blues / Soft Rhythm  
& Blues / Foreign Language / Religious Music / Religious Talk / Personality / Public / College /  
Weather / Emergency Test / ALARM! ALARM!  
Press the BAND/WB button (15) to change between three FM bands and two AM bands.  
Press and hold the BAND/WB button to access the Weatherband (WB).  
Manual Tuning  
Press the TUNE/SEEK >>| or |<< buttons (19, 18) to seek stations up/down step by step.  
To search for stations in a PTY category:  
Auto Seek Tuning  
Press and hold the TUNE/SEEK >>| or |<< buttons (19, 18) to automatically seek the next or  
previous strong station.  
1. Press the PTY/MENU button (2) to view the current PTY category.  
2. Press the TUNE/SEEK >>| or |<< buttons (19, 18) to move through the list of available  
categories and select the program type you wish to search.  
3. After selecting the desired PTY, press the PTY/MENU button (2) to search the band for  
broadcasts of this type. “PTY Search” is displayed while the tuner is searching.  
NOTE: Seek tuning is not available for weather band channels. Use the up or down  
tuning buttons to manually select any of the seven available weather band channels.  
NOTE: Performing a PTY search on “ANY” will Seek Tune and stop on any station  
broadcasting RBDS, regardless of the program type.  
Preset Stations  
Six numbered preset buttons store and recall stations for each band.  
Store a Station  
Select a band (if needed), then select a station. Press and hold a preset button (5-10) for two  
seconds. The preset number will appear on the LCD.  
Recall a Station  
Select a band (if needed). Press a preset button (5-10) to select the corresponding stored  
station.  
NOTE: Preset buttons are pre-assigned frequencies in weather band mode.  
8
 
JHD1120  
Weather Band Operation  
What is the NOAA Weather Radio/Weatheradio Canada?  
NOAA (National Oceanic and Atmospheric Administration) is a nationwide system that  
broadcasts local weather emergency information 24 hours a day via the National Weather  
Service (NWS) network. 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. A similar system is available in Canada under the Weatheradio  
Canada service administered by Environment Canada.  
Tuning to Weatherband  
Press and hold the BAND/WB button (15) to access the Weatherband. The indication "WB"  
will appear on the display panel, along with the current number and channel indication: "WB-1",  
“WB-2", "WB-3", "WB-4", "WB-5", "WB-6" or "WB-7". The seven frequencies are shown in the  
following table:  
Table 1: WB Frequencies  
Frequency (MHz)  
Preset  
162.400  
162.425  
162.450  
162.475  
162.500  
162.525  
162.550  
2
4
5
3
6
-
1
The above table also shows which preset button will access the frequency. Note that one  
frequency cannot be accessed using a preset button. The frequency can only be reached  
using the tuning controls.  
Use the TUNE/SEEK >>| or |<< buttons (19, 18) or the preset buttons to tune to each of the  
seven channels until you find the weatherband station broadcasting in your area.  
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 standard 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 where you are located, there is a possibility you will receive only a very weak  
signal or none at all. Also, similar to AM and FM signals, weatherband signals are subject to  
surrounding conditions, weather, obstructions of the signal by hills or mountains, etc.  
9
 
JHD1120  
CARE AND MAINTENANCE  
TROUBLESHOOTING  
Keep the product dry. If it does get wet, wipe it dry immediately. Liquids might contain  
minerals that can corrode the electronic circuits.  
Symptom  
Cause  
Solution  
Keep the product away from dust and dirt, which can cause premature wear of parts.  
Handle the product gently and carefully. Dropping it can damage circuit boards and  
cases, and can cause the product to work improperly.  
Wipe the product with a dampened cloth occasionally to keep it looking new. Do not use  
harsh chemicals, cleaning solvents, or strong detergents to clean the product.  
Use and store the product only in normal temperature environments. High temperature  
can shorten the life of electronic devices, damage batteries, and distort or melt plastic  
parts.  
No power  
The vehicle’s accessory  
switch is not on  
If the power supply is properly  
connected to the vehicle’s acces-  
sory terminal, switch the ignition  
key to “ACC” or “Run”  
The fuse is blown  
Replace the fuse  
No sound  
Volume is too low or system Adjust volume to audible level  
is muted  
Wiring is not properly con-  
nected  
Check wiring connections  
Ignition  
The most common source of noise in reception is the ignition system. This is a result of the  
radio being placed close to the ignition system (engine). This type of noise can be easily  
detected because it will vary in intensity of pitch with the speed of the engine.  
The operation keys do  
not work  
The built-in microcomputer  
is not operating properly  
due to noise  
Press the RESET button  
Usually, the ignition noise can be suppressed considerably by using a radio suppression type  
high voltage ignition wire and suppressor resistor in the ignition system. (Most vehicles employ  
this wire and resistor but it may be necessary to check them for correct operation.) Another  
method of suppression is the use of additional noise suppressors. These can be obtained from  
most professional mobile electronics retailers.  
Cannot tune to radio sta- The antenna cable is not  
Check antenna cable  
tion, auto-seek does not  
work  
connected  
The signals are too weak  
Select a station manually  
Interference  
Radio reception in a moving environment is very different from reception in a stationary  
environment (home). It is very important to understand the difference.  
AM reception will deteriorate when passing under a bridge or when passing under high voltage  
lines. Although AM is subject to environmental noise, it has the ability to received at great  
distance. This is because broadcasting signals follow the curvature of the earth and are  
reflected back by the upper atmosphere.  
10  
 
JHD1120  
SPECIFICATIONS  
FM Radio  
Frequency Coverage (USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 107.9 MHz  
Frequency Coverage (Europe) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 108 MHz  
Sensitivity (S/N=30dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2µV  
Image Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >45 dB  
Stereo Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25 dB  
AM/MW  
Frequency Range (USA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530-1710 kHz  
Frequency Range (Europe). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522-1620 kHz  
Sensitivity (S/N=20dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 dB  
General  
Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC 12 Volts  
Grounding System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Negative Ground  
Speaker Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8 ohms per channel  
Tone Controls:  
Bass (at 100 Hz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : ±10 dB  
Treble (at 10 kHz). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : ±10dB  
Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40W x 4  
Idle/Standby Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA  
Current Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Ampere (max.)  
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 (W) x 175 (D) x 50 (H)  
11  
 
ASA Electronics Corporation  
©2010 ASA Electronics Corporation  
v.121509  
 

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