Shouldyouencounteraproblemwithyour system,dotheJtbllowing:

1 Make sure the power cord and speaker cords are connected correctly and firmly.

2Find your problem in the troubleshooting checklist below and take the indicated corrective action.

If the problem persists after doing all oi" the

above, consult your nearest Sony dealer.

When the I/(_ indicator flashes

hmnediately unplug the power cord and check the following items

•Are the system control cables connected correctly'?

•Are the + and speaker cords short circuited?

•Is the voltage selector set to the correct voltage?

Check the voltage for your region, then make sure the voltage selector is set correctly

•Are you using the supplied speakers?

•Is anything blocking the ventilation holes on the rear of the systenf?

After checking the above items and fixing any problems, plug in the power cord again and turn on the system. If the I/(_) indicator still flashes, or if the cause of the problem cannot be Jtbund even after checking all the above items, consult your nearest Sony dealer.

General

The display starts flashing as soon as you plug in the power cord even though you have not turned on the system (see step 6 of

"Hooking up the system" (page 8)).

•Pless DISPLAY twice while the system is off

The demonstration disappears

"- -:- -" appears in the display.

•A powe! 1:allure occmTed Set the clock (page 11) and timel settings (pages 27 and 28) again

The clock setting/radio presetting/timer is canceled.

•Redo the lbllowing:

"Setting the clock" (page 11) "Presetting radio stations" (page 16)

"Falling asleep to music" and "Waking up to

music"

(page 27)

"Timel

recording radio programs" (page 28)

There is no

sound.

•Turn VOLL'ME clockwise (or press VOLUME + on the remote)

•Make sure the hea@hones are nm connected to the PHONES jack

•Check the speaker connections (page 9)

•Thee is no audio output during Timer Recording

There is no microphone sound.

•Turn VOLL_IE (or press VOLLTME +, lepeatedly on the remote) or MIC LEVEL to

adjust tile microphone volmne.

•Make sure the microphone is connected to the MIC jack correctly

There is severe hum or noise.

•Move tile system away fiom the source of noise

•Connect the system to a diffelent wall outlet

•Install a noise filter (commercially available) to the power cord

The timer cannot he set.

•Set the clock again (page 11)

The timer does not function.

•Check the timer setting and set the CO1Tecttime (pages 27 and 28)

•Cancel the Sleep Timel flmction (page 27)

•You cannot select the Play Timer and Timer

Recording sinmltaneously

36s8

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Sony MHC-GN880, MHC-GN660, MHC-GN770/GX9000, MHC-GN990 manual 36s8, When the I/ indicator flashes, General
Page 35 Page 37

MHC-GN770/GX9000, MHC-GN990, MHC-GN660, MHC-GN880 specifications

The Sony MHC series, which includes the MHC-GN880, MHC-GN660, MHC-GN990, and MHC-GN770/GX9000 models, represents a powerful lineup of high-fidelity audio systems that cater to music lovers and party enthusiasts alike. Each model is designed to deliver exceptional sound quality, advanced features, and versatile connectivity options, making them perfect for various audio needs.

The MHC-GN880 is a standout in the lineup, featuring a massive output power that ensures an impressive sound experience. Equipped with Sony’s unique Mega Bass technology, it enhances low-frequency sounds without distortion, allowing users to feel the depth of their favorite tracks. The model includes Bluetooth connectivity, enabling seamless streaming from smartphones and tablets. Additionally, it boasts a fun DJ effects feature that adds excitement to any gathering.

The MHC-GN660, while slightly more compact, doesn't skimp on performance. It also incorporates Mega Bass technology and supports Bluetooth for wireless streaming. One of its defining features is the built-in CD player, allowing users to enjoy their physical music collections. The user-friendly interface, combined with a sound pressure horn speaker design, delivers clear and powerful audio that is perfect for both casual listening and lively parties.

Moving to the MHC-GN990, this model takes things up a notch with multi-color LED lighting that synchronizes with the beat of the music, creating an immersive party atmosphere. It also supports High-Resolution Audio, ensuring that every track sounds as close to the original recording as possible. The MHC-GN990 includes a range of connectivity options, from USB playback to HDMI ARC output, making it an ideal centerpiece for a home entertainment system.

Lastly, the MHC-GN770/GX9000 combines the best features of its predecessors with additional enhancements. This model is equipped with a powerful amplifier and dual subwoofers for deep bass response, making it suitable for various music genres. It also features karaoke functionalities, allowing users to connect microphones and enjoy singing along with their favorite tracks. With its stylish design and robust sound output, the MHC-GN770/GX9000 is perfect for entertaining guests or setting the mood for a relaxing evening at home.

Collectively, these models from Sony’s MHC series showcase the brand's commitment to providing high-quality audio experiences, blending technology and performance to meet the diverse needs of modern audio enthusiasts. Whether for parties, home entertainment, or simple music enjoyment, the MHC series offers a powerful and rewarding solution.
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