Question about Sony CFD-646 Boombox

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Sony CFD-646 I cannot get sound out of both speakers, despite repeated attempts to press the stereo/mono button. But it was playing stereo just the other day and nothing happened in between to affect the speakers.

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Are you interested in selling your sony cfd 646? I'm looking for spare parts! contact me at :lizzymariascott@att.net

Posted on Apr 06, 2009

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Maybe the audio amplifier IC are bad

Posted on Oct 01, 2008

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1 Answer

I want to set the receiver to surround sound. The indicator only shows two speakers I want it to show five


What is the source of your sound? By default, receiver will use only those channels that are used in the input signal - if you play CD in stereto, it will use only 2 front speakers. If you play DVD with 5.1 audio, it will use all 5 speakers (+ subwoofer if you have one).

However you can use one of the bulitin "sound field program" modes to mix the 2 channel stereo music to all speakers. On front panel, press "PROGRAM < >" buttons to select the one you like. Or on remote control, repeately press MOVIE, MUSIC or STEREO buttons. You can check your manual for description of each sound field program.

Oct 11, 2014 | Yamaha RX-V661 Receiver

3 Answers

Sound very poor


there could be a few issues. It could be the speakers themselves. I believe this tv has an audio out. I would hook it up to a stereo and see if it that improves it. It could also be something internal like the amplifier. You have a couple options but I would just use a stereo for sound. If you still need more assistance let me know. Please take a moment to accept and rate my solution accordingly.
Thanks,
Lee

Oct 18, 2008 | Philips 42MF130A 42 in. Plasma EDTV

1 Answer

No stereo sound


first this needs to know if set has internal left and right speakers

Aug 31, 2012 | byD sign Televison & Video

1 Answer

I have a L46FHD37 lcd tv how can i reset it


The Sound menu lets you adjust audio output. To access the Sound menu, press MENU on the remote, and then select Sound from the Main Menu. The following audio items can be adjusted:
Equalizer The five-band graphic equalizer lets you adjust the audio frequency settings. You can select one of the five-band Equalizer Presets or create your own personal preset.
Sound Preset Allows you to choose a specific Sound Preset. Press the right arrow to cycle through the options: Standard, Movie, Voice, Music and Personal.
Frequency Range Displays the different graphic equalizer bands set for each Sound Preset option. Choose a band and make adjustments. When you make adjustments, the Sound Preset option automatically changes to Personal. Press the left or right arrow button to select the frequency (100Hz, 300Hz, 1KHz, 3KHz, 10KHz) you want to adjust. Then use the up or down arrow button to adjust the level. When you're done adjusting the levels, press the MENU button to exit.
To view the frequency range of another Sound Preset option, press the right or left arrow until no band is selected and Frequency Range is highlighted. Then press the up arrow to highlight Sound Preset.
Sound Type Controls the way the sound comes through your speakers. The options available vary according to the input selected.
Mono (available for regular TV viewing only) Plays the sound in mono only. Use this setting when receiving broadcasts with weak stereo signals.
Stereo Splits the incoming stereo audio signal into left and right channels. Most TV programs and recorded materials have stereo audio. The word Stereo appears in the channel banner when you tune to a program that is broadcast in stereo.
Sound Mode Provides special processing through your speakers (depending on the setting you chose as your Sound Type). The available sound modes are:
Off Does not give any special sound processing.
SRS WOW Gives a surround effect with more bass. (available for models L42FHD37, L46FHD37, and L46FHD35) SRS TurSurround XT (available for models L42FHD38, L46FHD38, L52FHD38, and
L40FHD380) Dynamic Bass Improves bass output. Displays a choice list of available settings you can adjust: Off and On.
Balance Press the right or left arrow buttons to adjust how much audio is sent to the left and right speakers.
Auto Volume Level Reduces the annoying blasts in volume during commercial breaks, and also amplifies softer sounds in program material. Eliminates the need to constantly adjust the volume.
Internal Speakers Turn on or off the internal speakers. If you have a device connected to the AUDIO OUTPUT jacks on the back of the TV and you want to control the sound by the device instead, uncheck the box.
If you would like for me to send you the user manual, please send me an email to LBrown18062@hotmail.com. Put "RCA L46" as the subject and I will send it to you.

Mar 30, 2012 | RCA L46FHD2X48 46 in HDTV TV

1 Answer

How do i change the AM radio to FM?


Hello
Press RADIO BAND.AUTO PRESET until the band you want appears in the display (direct power on). Each time you press this button, the indication changes as "FM" --> "AM". Hold down TUNE + or --, until the frequency digit begins to change in the display. The player automatically scans the radio frequencies and stops when it finds a clear station. If you can't tuned in a station, press the button repeatedly to change the frequency step by step. If FM broadcast is noisy, press "MODE" until "Mono" appears on the display and the radio will play in monatural without any noise. Only strong FM signals can be decoded to stereo. OK.

Oct 22, 2011 | Sony CFD-S300 Radio/Cassette/CD Boombox

2 Answers

How do you auto preset radio stations?


Hello
[1] Press RADIO BAND.AUTO PRESET until the band you want appears on the display [direct power ON]. Each time you press the button the indication changes as follows. "FM" => "AM"
[2] Hold down TUNE+ or --ve until the frequency digits begin to change in the display.
The player automatically scans the radio frequencies and stops when it finda a clear station. If you can't tune in a station, press the button repeatedly to change the frequency step by step.
If FM band is noisy, press the MODE repeteadly until "MONO" appears in the display and the radio will play it monatural. If FM radio signal at your area is very weak, this type of noise may occur. OK.

Sep 28, 2011 | Sony CFD-S350 Radio/Cassette/CD Boombox

3 Answers

Can't change from MONO to AUTO mode


Hello
Can't make sound from mono to auto is your problem I thinks and posts this solution.
Hit the "Menu" button and surf through, come to "Sound Adjust" window.
The settings allow you to change and adjust sound in your TV. There are Bass, Treble and Balance control to adjust to your individual taste.
To adjust them
1. Press Menu button.
2. Press UP or DOWN button to select the desired item.
3. Press => or 4. Press EXIT button when finished.
When adjusting the parameter of "Balance" control, always set it to mid position to get stereo sound from both speakers. If it is set to any extreme end, there will be no output from the speaker of that side, and will hear as mono.
If you press "0" [Zero] button, you can reset the sound settings to it Factory settings.
To select 'Streo mode;
1. Press "Menu" button.
2. Press UP or DOWN button to select MTS [Multi-channel Telivision Sound].
3. Press => or [The ON AIR arrowtells you if a broadcast is in stereo AND/OR contains the SAP.
Press "Exit" button when finished.

Keep the TV in stereo mode to get the best sound quality. The sound will work in stereo

mode even if a certain broadcast is in mono sound only.

Choose the mono setting to reduce excessive noise on a certain channel or broadcast.
Selecting SAP will allow you to hear an alternative soundtrack, if one is available.

Apr 01, 2011 | JVC AV32F476 32" TV

1 Answer

How do I get my rca truflat tv to get out of mono?


Hello
Press the MTS on the remote control handset to select STEREO, MONO or SAP. All the options will be available only when the current TV channel is broadcasting that option. Channels will not always carry programes, that have all MTS options. If "STEREO" appears on the screen when you select a channel means stereo sound is available with current programme. You can hear sound from both speakers. If broadcast is not strong and clear, stereo sound will not be available. Press "MTS" button to change it to "Mono". This will eliminate the noise. If "MONO" appears on the screen when you select a channel, stereo effect will not be availabe, even though you have set it to stereo. If "SAP" appears when you select a channel 'Second Audio Programe' [SAP] broadcasting is available for that programme. Press the "MTS" button to 'SAP' and you can hear that programe in different language or some other kind of audio.

Oct 28, 2010 | RCA TruFlat 27F520T 27" TV

1 Answer

Display for radio stuck in '7 SAFE' mode


This sounds like a Phillips Car Stereo:

To get the code in:
1. Turn the stereo off.
2. Turn off the ignition
3. Turn the ignition back on (dash warning lights on)
4. Hold and keep down the AS button on the stereo.
5. Turn the stereo on.
6. Release the AS button after 4 dashes appear on the display
7. Now enter code (if code = 7009. Press preset button 1 seven times, button
2 once
3 once
4 nine times
If you go past you can go round again by pressing the
preset button repeatedly
8. Once all 4 numbers are correct hold down AS again until you hear a beep (2 - 5 seconds)
9. The stereo after beeping will scan to program channels
You have 10 attempts to get the code in. However some models will not give you the number of attempts remaining!

Time delays work as follows:

Attempt 1. 10 seconds
Attemp 2. 30 seconds.
Attempt 3. 10 minutes.
Attempt 4. 20 minutes
Attempt 5. 40 minutes
Attempt 6. 80 minutes
Attempt 7 160 minutes
Attempt 8 320 minutes
Attempt 9. 640 minutes (yes that is 10 hours 40 minutes!!)

Vitally important thing to remember, the countdown timer works only when the radio is switched on. ANY interruption in the power will reset the timer!

So, be prepared for a VERY long wait to be able to enter the code!
Oh, and if it has reached 10 attempts, then it needs a dealer unlock.

May 09, 2009 | Car Audio & Video

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