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Sony STR-DE485 Support Question

Sony STR-DE485 Support Question

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Question posted by sanchezc on July 7th, 2022

Sp Off Occasionally And Quite Randomly Appears On The Display.

SP OFF occasionally and randomly appears on the display of Sny STR-DE485 FM Stereo Receiver. There are no headphones attached. I remedy it now by equally randomly turning receiver off, waiting, then on, then playing with the MODE function, until it (usually, so far, touch wood) works. But this isn't a great solution. Why does it happen and how do I fix? Thanks.

Requests for more information

Request from chamrousse08 on August 23rd, 2022 4:53 PM
I understand. All cables are connected. All components are properly turned on. Despite the fix suggested by the person who replied recently, on my receiver, the volume is appropriate. Muting is off. Headphones are not connected, and "PROTECT" does not flash. Sound just randomly stops, mid-song, mid-program, with no logical explanation. Nobody is within 50 feet of the receiver. Sound just stops. I remedy it as follows, but it seems a lame fix: turn off receiver, wait about 15 second, reach back to the panel rear right, jiggle 2-3 cables to be sure they are well connected (they always are), turn receiver on, and 9x out of 10 SP.OFF is removed and sound returns. But -- why? And how can we fix it permanently? Thanks.

Current Answers

Answer #1: Posted by SonuKumar on July 13th, 2022 7:31 AM
This answer was accepted by the poster of the original question.
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Related Sony STR-DE485 Manual Pages

Operating Instructions - Page 2

...receiver. - CAUTION You are cautioned that this manual could void your authority to Part 15 of cable entry as a bookcase or built-in cabinet. To prevent fire, do not cover the ventilation of Digital Theater Systems...interference by turning the equipment off and on the apparatus. This receiver incorporates Dolby* Digital and Pro Logic Surround and the DTS** Digital Surround System. * ...
Operating Instructions - Page 3

... 21 Changing the display 22 Enjoying Surround Sound Automatically decoding the input audio signal 23 Selecting a sound field 23 Using only the front speakers (2 Channel Stereo 25 Enjoying stereo sound in multi channel (Dolby Pro Logic II 25 Understanding the multi channel surround displays 26 Customizing sound fields 27 Receiving Broadcasts Storing FM stations automatically (AUTOBETICAL...
Operating Instructions - Page 4

... The instructions in the text, for models STR-DE585, STR-DE485E and STR-DE485. When the demonstration starts, the following message appears in the display: "NOW DEMONSTRATION MODE IF YOU FINISH DEMONSTRATION PLEASE PRESS POWER KEY WHILE THIS MESSAGE APPEARS IN THE DISPLAY THANK YOU" To cancel the demonstration Press ?/1 to turn the receiver off while the above message is being...
Operating Instructions - Page 6

... red. • When you get started • Turn off the power to all of the connections are completed. • Be sure to make connections firmly to avoid hum and noise. • When connecting an audio/video cord, be sure to match the color-coded pins to the appropriate jacks on the components: yellow...
Operating Instructions - Page 10

... VIDEO OUT DVD or LD player (etc.)* AUDIO OUT L R * Make either an optical or coaxial digital signal. We recommend making coaxial connections instead of a movie theater into your home. You can also connect an LD player with 96 kHz, 48 kHz, 44.1 kHz and 32 kHz sampling frequencies. To fully enjoy multi channel surround sound, five...
Operating Instructions - Page 11

... SURROUND WOOFER MULTI CH IN AUDIO OUT L R IN CD OUT IN AUDIO IN AUDIO IN AUDIO OUT AUDIO IN SUB MD/TAPE DVD/LD VIDEO 2 VIDEO 1 WOOFER AA F F L CENTER R SUB FRONT SURROUND WOOFER MULTI CH OUT DVD player, Multichannel decoder, etc. 11GB Alternatively, the multi channel input jacks can connect them directly to the receiver to enjoy the sound of the surround...
Operating Instructions - Page 12

... cord of your receiver has a voltage selector on the rear panel, check that the voltage selector is set the selector to the correct position before connecting the AC power cord to a wall outlet. 12GB Other hookups SPEAKERS IMPEDANCE USE 8 - 16Ω SURROUND R L CENTER FRONT R L R L R L Setting the voltage selector If your audio/ video components to...
Operating Instructions - Page 15

...surround speakers up to 4.5 meters (15 feet) closer (C) to the listening position. Performing initial setup operations Before using your system. However, the receiver lets you turn on the power. 1 Turn off the receiver...channel surround setup For the best possible surround sound, all of your system. Tip To check the audio output during settings (to set to VOL MIN. When placing surround ...
Operating Instructions - Page 18

... not possible to your listening position to enjoy surround sound. x Front speaker distance ( L R DIST. XX.X m (ft.)) Set the distance from a distance equal to the front speaker distance (A on page ...closer. x Center speaker distance ( C DIST. Tip The receiver allows you do not connect a sub woofer, select "NO". Multi channel surround setup (continued) x Sub woofer selection ( SW S.W. This...
Operating Instructions - Page 21

...; When the headphones are turned off. Note If 96 kHz digital signal is on, the tone and surround effects are connected, speaker output is decoding signals recorded in the display. 21GB PHONES Use to the DIGITAL COAXIAL input jacks. Select OPT IN ANALOG To Specify the digital audio signals input to mute the sound. When this...
Operating Instructions - Page 23

... You can enjoy surround sound simply by selecting one of the receiver's preprogrammed sound fields. This mode reproduces the sound characteristics of audio signal being input (Dolby Digital, DTS, or standard 2 channel stereo) and performs the proper decoding if necessary. However, if there are selected, "Digital Cinema Sound" indicator in the display. In a home theater, "Digital Cinema...
Operating Instructions - Page 24

... the sound field you will not be able to a movie theater. This mode is ideal for watching science-fiction or action movies with 2 channel audio signals is featured in the display. About Cinema Studio EX Cinema Studio EX consists of the following three elements. • Virtual Multi Dimension Creates 5 sets of virtual speakers surrounding the...
Operating Instructions - Page 25

... Logic II. appears in the display. For example, if you select "Micro Satellite Speaker" (page 16), internal sound processor will be applied again. • You can reproduce the stereo sound in stereo automatically, and the sound field is selected. This mode outputs the sound from the sub woofer when "2CH ST." Enjoying Surround Sound Tips • The receiver lets you apply...
Operating Instructions - Page 26

...you have made digital connections and that INPUT MODE is activated. Note "RDS" only appears for models of area code CEL, CEK only. 6 D.RANGE: Lights up when ...set to show how the receiver downmixes the source sound (based on the source sound. Understanding the multi channel surround displays qa qs 1 2 34 5 a DIGITAL PRO LOGIC DTS MPEG STEREO MONO RDS SW SP. The boxes around the...
Operating Instructions - Page 27

... Effect) channel and when the sound of the LFE channel signal is displayed. 3 Press MENU + or MENU - Enjoying Surround Sound 0 L F E : Lights up when the disc being reproduced. OFF: Lights up when headphones are stored in "Multi channel surround setup" starting from the SUB WOOFER jacks. Customizing sound fields By adjusting the surround parameters and the tone characteristics of...
Operating Instructions - Page 29

.... CLR." appears in the display and all sound fields are reset at once. 29GB Enjoying Surround Sound and TREBLE +/- "SF. Initial settings Parameter BASS TREB. Initial setting 0 dB 0 dB BASS (Bass) Lets you adjust the treble tone. You can adjust the tone for optimum sound. The setting is on, press ?/1 to adjust the tone. to turn off...
Operating Instructions - Page 31

...TUNING -. • If "STEREO" flashes in the display and the FM stereo reception is repeated in . 2 Press FM** or AM** to enjoy the stereo effect, but the sound will also scan all available ... receiver. Preset tuning After you have preset. The receiver will be preset. continued 31GB press TUNING - Tips • If you want . To return to low. Area code FM U, CA 100 kHz AU, SP...
Operating Instructions - Page 36

... receiver. The audio from a video tape or laser disc. The remaining time appears in 1 minute intervals. You can record the sound from any audio source onto a video tape while copying from that follow. 36GB See the operating instructions of the audio from the original medium, select the video source again. Using the Sleep Timer You can specify up to turn...
Operating Instructions - Page 39

To listen to preset stations. To assign the audio input for your digital components. MUTING Receiver Mutes the sound from the receiver. MAIN MENU Receiver Press this button repeatedly to select NIGHT MODE. Selects sound field mode. AV ?/1 TV/VCR/ Turns the audio and CD player/ video components on the TV screen. To watch DVD or laser disc. Selects AUTO...
Operating Instructions - Page 46

... deck/ DAT deck Turns the audio and video components on or off the receiver and STANDBY VCR/Satellite other Sony audio/video (Press AV tuner/ components ?/1 and CD player/ ?/1 at VCD player/ the same LD player/ time) DVD player/ MD deck/ DAT deck/ Tape deck 0-9 Receiver Use with "SHIFT" button to output test tone. SYSTEM Receiver/TV/ Turns off . LD...

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