Infinity owner manual C255ES Infinity Classia, Service Notes, Exploded View, Wiring Diagram

C255ES Infinity Classia™

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 level 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 burned, “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
LOW-FREQUENCY	Blue +
TRANSDUCER
130W33801	Black –
HIGH-FREQUENCY	White +
TRANSDUCER
025D38501	Black –
CROSSOVER
	NETWORK
FL-13335-01S
HIGH-FREQUENCY	Yellow +
TRANSDUCER
025D38501	Black –
LOW-FREQUENCY	Green +
TRANSDUCER
130W33801	Black –

EXPLODED VIEW			31
	30		32
	14		27
			15
			1
			2
			3
29	28		4
	12
			5
	13	10
	11
		9
		8
		7	6

ITEM	PART NO.	DESCRIPTION	QTY.
1	Not for Sale	Label	1
2	FL-13335-01S	Crossover network w/	1
		terminal cup, binding posts
3	SP-13335-01	Wall-mount bracket	4
4	130W33801	5-1/4" Woofer	2
5	RN-13333-01	Trim ring, woofer	2
6	NT-13335-01	Front grille	2
7	SB-13335-01	Base, wedge	1
8	FR-25385-02	Faceplate, tweeter	2
9	CR-13333-01	Grille cup	8
10	Not for Sale	C255ES cabinet	1
11	Not for Sale	Label	1
12	AL-13333-02	Infinity logo	2
13	MY-0436-01	Switch plate	1
14	025D38501	1" Tweeter	2
15	Not for Sale	Label	1
16	Not for Sale	Plastic bag	1
17	Visit www.infinitysystems.com	Owner’s manual	1
18	Not for Sale	Plastic bag	1
19	SB-13335-01	Base, wedge	1
20	PO-13335-01	Top & bottom foam (set)	1
21	Not for Sale	Plastic bag	1
22	Not for Sale	Cloth bag	1
23	C255ESBK or C255ESCH	C255ES	1
24	BO-13335-01	C255ESBK outer carton	1
	BO-13335-01A	C255ESCH outer carton	1
25	WC-CS50-01	Warranty card	1
26	Not for Sale	Label	1
27	CS06-6	Shorting straps	1
		(right/left pair)
28	SR-1504-24A	Screw, switch, faceplate	4

SERVICE NOTES

A Phillips screwdriver and 3mm Allen wrench (hex key) are required to service this product.

29	SR-1504-24	Screw, woofer,	16
		tweeter, trim ring
30	SR-0535-10	Screw, tweeter	2
31	SR-1404-20	Screw, wall bracket	8
32	SR-1435-18A	Screw, terminal cup	4