Infinity Portable Speaker ERS 610 User Manual

ERS 610  
Infinity Loudspeaker Troubleshooting/Repair Tips  
Most customers prefer to do simple loudspeaker repairs themselves. By following the steps below, a majority of loudspeakers can be returned to  
their original factory performance with minimum effort. Choose the example that best describes the problem you are experiencing.  
Problem 1: No sound or distorted sound from one loudspeaker in a pair (or set)  
Connect the dead/distorting loudspeaker to a different amplifier channel (one that had a functioning loudspeaker connected to it). If it functions  
normally, the problem is not loudspeaker-related. If the loudspeaker still makes no sound or sounds distorted, a wire may have become loose  
or disconnected, the network (also known as a crossover) may be defective, the drivers (woofer, tweeter, etc.) may be defective or, in very rare  
cases, all may be defective.  
Refer to the wiring diagram and exploded view below. The network is a small circuit board found on the inside of the terminal cup, or mounted to  
an inside wall of the enclosure. It sends low-frequency sounds to the woofer, high-frequency sounds to the tweeter and, if applicable, mid-frequency  
sounds to the midrange driver. Make sure all wires are secure and connected. Look for components on the network that look burnt, bulged,”  
or abnormal. If everything looks normal, connect the network to the drivers from another matching loudspeaker. MAKE SURE you attach the  
correct wires to each driver – mid- and low-frequency sounds can damage the tweeter! If there is still no sound or distorted sound, the network  
is defective. If there is clean undistorted sound, the drivers are defective.  
Problem 2: No sound or distorted sound from one or more (but not all) drivers in an enclosure  
Remove the problem driver(s) from the enclosure and make sure all wires are secure and connected. If they are, proceed with the following test:  
Woofer or midrange driver – Connect the driver’s + and – input terminals directly to the loudspeaker wires from your receiver/amplifier and play  
some music at a reasonable volume. If the driver now sounds normal (produces a clean, undistorted sound), the network is most likely defective.  
Tweeter – Replace the tweeter with a functioning tweeter from another loudspeaker. If the tweeter now functions normally (produces clean,  
undistorted sound), the original tweeter is defective. If the replacement tweeter also sounds distorted or produces no sound, the network is  
most likely defective.  
Problem 3: Loudspeakers distort, rattle or pop at higher volumes  
This is usually NOT a loudspeaker problem. Common causes are too much power (playing the loudspeakers too loud and causing them to distort),  
an amplifier with not enough power (the amplifier can’t produce the required volume without distorting), excessive equalization (turning the tone  
controls too far clockwise, and/or engaging the loudness/bass boost button on your receiver) or some combination of the above. If only one  
loudspeaker is exhibiting the problem, and you’re confident that it’s not caused by too little power/too much power/excessive equalization, see  
solutions for Problems 1 and 2.  
WIRING DIAGRAM  
EXPLODED VIEW  
ITEM  
PART NO.  
DESCRIPTION  
QTY.  
1
1
1
NT-20356-01  
PC-20356-E  
SR-1404-68  
FR-20356-02PT  
SEE NETWORK  
GRILLE  
LOW-FREQUENCY  
2
3
4
5
PAINT MASK  
1
TRANSDUCER  
150820 00101  
Green+  
Black–  
SCREW, DOG  
4
2
FRONT BAFFLE FRAME  
SWITCHES  
1
Green+  
Black–  
2
(TWEETER-LEVEL,  
BOUNDARY COMPENSATION)  
WOOFER, FLAT PANEL  
MIDRANGE, 3"  
3
6
150820 00101  
080M30004  
1
2
1
4
4
Blue+  
Black–  
7
MIDRANGE  
8
REAR ENCLOSURE  
DOG  
4
TRANSDUCERS  
080M30004  
9
SP-20356-02  
SP-20356-01  
FL-20356-02S  
10  
11  
CAP, DOG  
Blue+  
Black—  
CROSSOVER NETWORK  
W/SWITCHES  
1
1
1
1
1
2
1
5
12  
13  
14  
15  
16  
17  
025D35904  
TWEETER 1"  
Green+  
Black—  
HIGH-FREQUENCY  
HO-20356-01  
CUTOUT TEMPLATE  
WARRANTY CARD, 5 YEAR, JBL  
OWNERS MANUAL  
STYROFOAM, RIGHT/LEFT  
OUTER CARTON  
TRANSDUCER  
025D35904  
6
PO-20356-01  
Blue  
Red  
Black  
Green  
12  
BO-20356-01  
7
NETWORK  
SWITCHES  
11  
Green  
8
Red  
Black  
SERVICE NOTES  
Access to the drivers and crossover network is accomplished by removing the four  
black screws holding the rear enclosure to the front baffle. When  
the baffle, with components, is lifted from the enclosure, connecting wires may be taut  
from the drivers and switches to the network, which is mounted on the inside of the  
rear baffle. You will need to unplug two switch molex connectors on the network board  
for full access to the components. Take care to plug these connectors back in before  
the ERS610 is reassembled.  
CROSSOVER  
NETWORK  
FL-20356-02S  
9
10  
ERS610 ROUGH-IN FRAME PART NO. IW10RRIF  
 

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