Infiniti Speaker Beta C250 User Manual

Beta C250  
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.  
Beta C250 Cabinet – Not for Sale  
3
11  
7
10  
WIRING DIAGRAM  
EXPLODED VIEW  
8
HIGH-FREQUENCY  
TRANSDUCER  
2
12  
+
351572-001  
1
11  
4
+
GRN  
GRN/BLK  
+RED  
BLK  
+
LOW-FREQUENCY  
TRANSDUCERS (2)  
351503-001  
GRN  
GRN/BLK  
CROSSOVER  
NETWORK  
351680-001  
13  
6
9
5
ITEM  
NO.  
ITEM  
NO.  
DESCRIPTION  
QTY.  
PART NO.  
DESCRIPTION  
QTY.  
PART NO.  
1. Woofer, BT130JWS  
2. Tweeter  
3. Crossover Network  
4. Faceplate, Black (for BK)  
Faceplate, Gray (for BE & CH)  
5. Assy, Grille, Black (for BK)  
Assy, Grille, Gray (for BE & CH)  
6. Gasket, Faceplate  
7. Terminal Cup w/Binding Posts  
8. Cup, Grille (Black for BK)  
Cup, Grille (Gray for BE & CH)  
9. Screw (faceplate)  
2
1
1
1
1
1
1
1
1
4
4
8
351503-001  
351572-001  
351680-001  
351672-001  
351672-002  
352009-003  
352009-004  
351943-001  
338567-001  
333249-001  
333249-003  
903802-016  
10. Screw (terminal cup)  
4
61867  
PB, OVHDPH, #6 x .75”  
11. Screw (woofer/network)  
#8 x .75”, PB, PPH, BLK  
12. Screw (tweeter mounting)  
MS, PPH, H/L, 6-19 x .375”  
13. Logo, Gold/Silver Infinity  
14. Carton-BetaC250BK  
Carton-BetaC250BE  
Carton-BetaC250CH  
15. End Pad, Sides  
16. Foot, Bump-on, 3M SJ5744 (set)  
17. Owner’s Manual  
18. 5-Year Warranty Card, Infinity  
12  
2
63563  
905401-006  
1
1
1
1
2
1
1
1
351617-001  
352133-001  
352133-002  
352133-003  
352134-001  
330104-001  
352036-001  
335841-003  
PB, HXS, #8 x 1” BLK  
BLACK ONLY #8 x 1” 10HD 5/32 DR  
8
72216  
 

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