P35 Performance Series, Wiring Diagram

P35 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
	MIDRANGE
	TRANSDUCER
	351771-001
						ORN/BLK
HIGH-FREQUENCY		YEL/BLK		WHT/BLK	WHT	ORN
HIGH-FREQUENCY			YEL
TRANSDUCER
362819-001
						LOW-FREQUENCY
	RED					TRANSDUCERS
	RED					351770-001
	BLK
	RED					GRN/BLK
	BLK					GRN
	BLK
		CROSSOVER NETWORK
			351615-001

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

EXPLODED VIEW

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P35 Cabinet –

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	ITEM				ITEM
	NO.	DESCRIPTION	QTY.	PART NO.	NO.	DESCRIPTION	QTY.	PART NO
1.		Outer Carton (black)	1	361827-001	15.	Screw (tweeter faceplate, midrange)	8	908302-012
2.		Owner’s Manual	1	361821-001		PB, HXS, #6 x 3/4 ZNC
3.		End Pad	2	351608-001	16.	Screw (term cup/xover)	4	882-41110-12
4.		Bump-On Foot	4	330104-001		6 x 3/4, PAN, PH, PB, BLK ZINC, LCS
5.		Warranty Card	1	338322-001	17.	Screw (woofer) PB, HXS, #8 x 3/4 ZNC	8	903802-012
6.		Tweeter	1	362819-001	18.	Tweeter Hold-Down Bar	1	338059-001
7.		Tweeter Gasket	1	339527-001	19.	Crossover Network	1	351615-001
8.		Tweeter Faceplate	1	350129-001	20.	Trim Ring (midrange)	1	351769-001
9.		Woofer	2	351770-001	21.	Midrange	1	351771-001
10.		Trim Ring (woofer)	2	351772-001	22.	Grille Retainer (black mdl)	4	333249-001
11.		Grille	1	351613-001	23.	Logo (cabinet)	1	361872-001
12.		Port Tube	1	350065-001	24.	Flower Pot, Plastic	1	351939-001
13.		Terminal Cup	1	351317-001	25.	Shorting Straps (set)	1	CS06-6
14.		Screw (tweeter)	2	905402-010
		MS PHH H/L 6-19 x 5/8 ZNC

P35 specifications

The JBL P35 and P25 are part of JBL's esteemed lineup of professional audio products, celebrated for their cutting-edge technology and robust performance. Both models serve as ideal solutions for various audio applications, ranging from professional sound engineering to recreational usage, making them highly sought-after options in their respective categories.

The JBL P35 is designed for serious audio professionals who demand the highest fidelity in sound reproduction. It features a 3-way speaker design, which allows for precise audio rendering across multiple frequency ranges. This design includes a dedicated woofer, midrange, and tweeter, ensuring that bass notes are deep and resonant while highs are crisp and clear. One of its standout technologies is the proprietary JBL waveguide, which contributes to an expanded sweet spot and excellent stereo imaging, providing listeners with an immersive audio experience.

In contrast, the JBL P25 serves as a more compact, versatile alternative without compromising on sound quality. This 2-way speaker configuration employs a high-efficiency driver that delivers exceptional performance in smaller spaces. The P25 is particularly popular among mobile DJs and musicians for its lightweight design and easy portability. Its rugged build quality ensures durability, making it suitable for both studio and on-the-road uses.

Both the P35 and P25 utilize JBL's advanced transducer technology, which enhances acoustic clarity and accuracy. These models are engineered to handle high power levels, allowing them to integrate seamlessly into professional setups or home studios. Furthermore, their compatibility with various amplifiers offers a high degree of versatility, permitting audio professionals to tailor their setups to meet specific requirements.

Another critical characteristic of both models is their aesthetic appeal. The sleek design, coupled with JBL’s iconic branding, ensures that they not only perform excellently but also look professional in any setting. Users can expect reliable performance without compromise, making the P35 and P25 popular choices in live sound and studio applications alike.

In summary, whether a user opts for the JBL P35 or P25, they are guaranteed superior sound quality, durability, and a range of features designed to enhance any audio experience. Both models embody JBL’s commitment to innovation and excellence in the world of professional audio equipment.