JBL S310II, S38II, S312II S26II manual Troubleshooting

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T R O U B L E S H O O T I N G

If there is no sound from any of the speakers:

Check that receiver/ amplifier is on and that a source is playing.

Review proper operation of your receiver/amplifier.

If there is no sound coming from one speaker:

Check the “Balance” control on your receiver/amplifier.

Check all wires and connections between receiver/amplifier and speakers.

Make sure no wires are touching other wires or terminals and creating a short circuit.

Make sure all wires are connected. Make sure none of the speaker wires are frayed, cut or punctured.

In Dolby* Digital or DTS® mode, make sure that the receiver/processor is configured so that the speaker in question is enabled.

Turn off all electronics and switch the speaker in question with one of the other speakers that is working correctly. Turn everything back on, and determine whether the problem is in the same place, i.e., the speaker that was working previously now has no sound and the speaker that was not working now sounds fine; or whether it has moved,

i.e., the speaker that was

your system for use with

not working still has no

digital “.1” surround

sound and the speaker that

formats.

was working is still fine. If

 

the problem is in the same

If there is no sound from

place, the source of the

the surround speakers:

problem is most likely with

• Check all wires and

your receiver or

amplifier,

connections between

and you should consult the

receiver/amplifier and

owner’s manual for that

speakers. Make sure all

product for further

wires are connected.

information. If the problem

Make sure none of the

has followed the speaker,

speaker wires are frayed,

consult your dealer for

cut or punctured.

further assistance or,

• Review proper operation

if that is not possible,

of your receiver/amplifier

visit our Web site at

and its surround sound

www.jbl.com for further

features.

information.

• Make sure the movie or

 

 

 

 

TV show you are watching

If the system plays at low

is recorded in a surround

volumes but shuts off as

sound mode. If it is not,

volume is increased:

check to see if your

• Check all wires and

receiver/amplifier has

other surround modes you

connections between

may use.

receiver/amplifier

• In Dolby Digital or DTS

and speakers.

mode, make sure your

• Make sure all wires are

receiver/processor is

connected. Make sure

configured so that the

none of the speaker

surround speakers are

wires are frayed, cut or

enabled.

punctured.

• Review the operation of

• If more than one pair of

your DVD player and the

main speakers is being

jacket of your DVD to make

used, check the minimum

sure that the DVD features

impedance requirements

the desired Dolby Digital or

of your receiver/amplifier.

DTS mode, and that you

 

 

have properly selected

If there is no (or low) bass

that mode using both the

DVD player’s menu and the

output:

DVD disc’s menu.

• Make sure the polarities

 

(+ and –) of the left and

 

right “Speaker Inputs” are

 

connected properly.

 

• Consider adding a

 

powered subwoofer to

 

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Contents S310II, S312II A N K Y O U F O R C H O O S I N G J B L Model S38II E a K E R P L a C E M E N TConnection Tips E a K E R C O N N E C T I O N STroubleshooting Specification S S310 S312 Description Amplifier PowerNominal Impedance Sensitivity 2.83V/1mM E S H O M E N E R ’ S G U I D E

S310II, S312II S26II, S38II specifications

The JBL S312II, S26II, S38II, and S310II speakers are part of JBL's renowned S series, designed to offer high-quality audio performance for home theater setups and music enthusiasts alike. These speakers combine cutting-edge technology, aesthetic design, and robust construction to deliver an immersive auditory experience.

The JBL S312II is known for its powerful performance and deep bass response. Equipped with dual 12-inch low-frequency drivers, this model ensures that low-end frequencies are articulated with clarity and impact, making it suitable for action movies and bass-heavy music. The speaker features JBL’s proprietary technologies, such as the Bi-Radial Horn, which enhances the dispersion of high frequencies, ensuring that sound remains clear and detailed, even in larger spaces.

The S26II, a compact bookshelf speaker, is ideal for smaller rooms or as part of a surround sound system. It incorporates a 6.5-inch low-frequency driver paired with a 1-inch tweeter, providing a well-balanced sound profile. The design includes a rear-firing bass port, optimizing bass response while maintaining a captivating overall sound stage. The speaker’s stylish and modern appearance allows it to blend seamlessly into various room decors.

The S38II serves as a versatile solution, bridging the gap between larger floor-standing speakers and smaller bookshelf models. This speaker features dual 8-inch woofers and a 1-inch tweeter, delivering powerful audio reproduction that fills rooms with rich sound. Its dual port design enhances low-frequency performance, while the sophisticated crossover network ensures seamless transitions between drivers.

Lastly, the S310II completes the lineup with a compact and efficient design, making it perfect for home theater or stereo setups in small spaces. It uses a dual 10-inch driver configuration alongside a 1-inch tweeter, providing impressive bass performance despite its smaller footprint. The S310II is engineered for easy placement within any room, allowing for versatile sound positioning without compromising on quality.

All models in the JBL S series highlight the brand’s commitment to audio excellence. With features like adjustable feet for stability, high-quality cabinetry to minimize resonance, and compatibility with various audio systems, these speakers are designed for those who seek premium sound without the need for excessively large speakers. With their combination of advanced technology and user-friendly designs, the JBL S312II, S26II, S38II, and S310II speakers offer options for every audiophile looking to enhance their listening experience.