JBL PC 600 Center Performance Series

JBL PC 600 Center Performance Series

JBL 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

5400

EXPLODED VIEW
		1	2		CABINET
		1	2	(NOT FOR SALE)
	20
					3
					4
					5
					6
	21					7
	21
	20				8
	19				8
	19
					9
					10
					11
				12
							00542
		16
	18	17
		17
			15
				14		13
				14
ITEM				ITEM
NO.	DESCRIPTION	QTY.	PART NO.	NO.	DESCRIPTION	QTY.	PART NO.
1.	SCREW, .25-20 x .75, MS, BHXS, BLK	2	902301-012	16.	WOOFER GASKET	2	335657-001
2.	MOUNTING BRACKET, WALL	2	336774-001	17.	SCREW, #6x.75 PPHD, PB, BLK	4	63563
3.	TWEETER GASKET	1	336613-001	18.	NETWORK	1	336773-001
4.	SCREW, 6-32 x .38, MS, PPH, ZINC	2	900302-006	19.	GASKET, TERMINAL CUP	1	351317-001
5.	TWEETER	1	335663-001	20.	SCREW, #6x.75, PB, HXS, BLK	6	908301-012
6.	TWEETER FACEPLATE	1	335695-001	21.	TERMINAL CUP	1	336616-001
7.	SCREW. 6x.75, PB, HXS, ZINC	4	908302-012	22.	OWNERS MANUAL	1	336608-001
8.	GRILLE CUP	4	333249-001	23.	SURVEY CARD	1	331384-001
9.	MIDRANGE GASKET	1	335656-001	24.	PAD, END TOP & BOTTOM	2	336632-001
10.	MIDRANGE DRIVER	1	336327-001	25.	CARTON, KIT	1	337058-001
11.	SCREW, 6x.75, PB, HXS, ZINX	4	908302-012	26.	CARTON, MASTER	1	336631-001
12.	JBL LOGO	1	335470-002	27.	BUMPER	4	301821-001
13.	GRILLE	1	336629-001	28.	WRENCH, ALLEN	1	336600-001
14.	SCREW, #8x1, PB, HXS, ZINC	8	903802-016	29.	WARRANTY CARD	1	331994-001
15.	WOOFER	2	335899-001

Note: A Phillips screwdriver and Allen wrench (hex key) 7/64" and 5/32" sizes are required to service this product

PC 600 specifications

The JBL PC 600 is a versatile and high-performance audio speaker designed for both casual listeners and audiophiles. With a robust build and innovative features, this model is engineered to offer an unmatched listening experience across various media formats.

One of the most prominent features of the JBL PC 600 is its impressive sound clarity. Utilizing advanced transducer technology, it provides crystal-clear high frequencies and well-defined mids, while bass response remains deep and rich. This ensures that whether you’re listening to music, watching movies, or gaming, every sound detail is accurately reproduced.

The design of the JBL PC 600 is not only aesthetically appealing but also functional. It features a sleek and modern look that fits seamlessly into any home or office setup. The speaker is available in various color options, allowing users to choose one that complements their space. Its compact size makes it easy to position on desktops, shelves, or entertainment centers without taking up too much space.

In terms of connectivity, JBL has equipped the PC 600 with versatile options. It includes Bluetooth capabilities, enabling wireless streaming from smartphones, tablets, and other devices. The speaker also supports wired connections through auxiliary inputs, giving users flexibility in how they connect their audio sources. Additionally, the unit includes a USB port for quick access to digital audio files.

One of the standout technologies in the JBL PC 600 is its integration with immersive sound technologies. The speaker is designed to enhance surround sound experiences, making it a great option for home theater setups. With Dolby Audio support, users can enjoy an immersive soundstage that transports them right into the action.

Durability is another key attribute of the JBL PC 600. The speaker is constructed with high-quality materials designed to withstand regular use while maintaining superior sound performance. JBL also offers an extended warranty, giving users added peace of mind regarding their purchase.

Overall, the JBL PC 600 combines exceptional sound quality, modern aesthetics, and versatile connectivity options, making it an excellent choice for anyone looking to elevate their audio experience. Whether used in a professional environment or for personal enjoyment, the JBL PC 600 stands out as a reliable and high-quality speaker that meets a variety of audio needs.