Primus PC350

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

Note: A Phillips screwdriver and “Torx” bit screwdriver T20 size are required to service this product.

EXPLODED VIEW

ITEM

 

 

 

ITEM

 

 

 

NO. DESCRIPTION

QTY.

PART NO.

NO. DESCRIPTION

QTY.

PART NO.

1.

PC350 CABINET BE/BK/CH

1

NOT FOR SALE

14.

5-1/4" TRIM RING, RIGHT

1

213-050-05145-0VAE

2.

GRILLE CUP

8

327-010-00624-E

15.

TWEETER W/FACEPLATE

1

23DA20AX-DT01-E

3.

ACOUSTIC DAMPING FILLER

1

NOT FOR SALE

16.

INFINITY LOGO

1

316-ABS-05218-0VAE

4.

ACOUSTIC DAMPING FILLER

1

NOT FOR SALE

17.

FRONT GRILLE (SILVER)

1

244-050-05229-0VAE

5.

CROSSOVER NETWORK

1

013-7500-05283-E

 

FRONT GRILLE (BLACK)

1

244-050-05229-0BAE

6.

SCREW, NETWORK

4

352-HM04018D497-E

18.

RUBBER FOOT PAD

4

373-000-00124-E

7.

TERMINAL CUP

1

317-ABS-00165-E

19.

OWNER’S MANUAL

1

406-000-05514-E

8.

SCREW, TERMINAL CUP

4

352-GM03520D850-E

20.

WARRANTY CARD

1

405-000-00312-E

9.

5-1/4" WOOFER

2

13PR80BZD-HW03-E

21.

TOP/BOTTOM STYROFOAM SET

1

431-000-05962-E

10.

SCREW, WOOFER/MIDRANGE

16

352-FM04014D602-E

22.

PC350 OUTER CARTON FOR BE

1

400-000-07230-E

11.

5-1/4" TRIM RING, LEFT

1

213-050-05144-0VAE

 

PC350 OUTER CARTON FOR BK

1

400-000-07232-E

12.

SCREW, TWEETER/TRIM RING

18

352-DM04525D597-E

 

PC350 OUTER CARTON FOR CH

1

400-000-07231-E

13.

3" MIDRANGE

2

32PR60AZL-HW02-E

 

 

 

 

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Harman-Kardon owner manual Primus PC350, Exploded View, Infinity Loudspeaker Troubleshooting/Repair Tips
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PC350 specifications

The Harman-Kardon PC350 represents a harmonious blend of design, functionality, and audio excellence, making it a notable option for those seeking premium audio solutions for their computer systems. This speaker system is engineered to deliver superior sound performance while maintaining a sleek, modern aesthetic that complements any workspace.

One of the standout features of the Harman-Kardon PC350 is its exceptional sound quality. The system is equipped with a powerful bass driver and precise tweeters, which work together to produce rich, immersive audio. Whether you are gaming, watching movies, or listening to music, the clarity and depth of sound provided by the PC350 enhance every auditory experience. The speakers are designed to handle a full range of frequencies, ensuring that both the highs and lows are effectively represented, making it ideal for a multimedia experience.

In terms of connectivity, the Harman-Kardon PC350 offers versatility and convenience. The system typically includes USB and audio jack inputs, allowing for easy integration with various devices, including laptops and desktops. This plug-and-play functionality ensures that users can quickly set up their audio systems with minimal hassle.

Another notable characteristic of the PC350 is its focus on user-friendly control. The compact remote control provides seamless access to volume adjustments and sound modes, facilitating an effortless way to tailor the audio output to personal preferences or ambient conditions. This level of interactivity is particularly advantageous during intense gaming sessions or when transitioning from work to leisure.

The design of the Harman-Kardon PC350 is equally impressive. Its sleek and stylish appearance is characterized by a minimalist approach, making it an attractive addition to any modern workspace. The combination of high-quality materials and elegant design choices ensures that these speakers do not just perform well; they also look good doing it.

Moreover, the PC350 incorporates advanced technologies aimed at enhancing audio fidelity. Features such as advanced audio processing work to eliminate distortions and provide a polished listening experience. This focus on quality ensures that users enjoy a consistent sound profile, which is crucial for both casual listeners and audio enthusiasts alike.

In conclusion, the Harman-Kardon PC350 is a premium speaker system that excels in sound quality, connectivity, user-friendliness, and design. With its cutting-edge technologies and stylish appearance, it is an ideal choice for anyone looking to elevate their computer audio experience, ensuring every note, dialogue, and sound effect is delivered with impeccable clarity and power. Whether for work or play, the PC350 is engineered to impress.
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