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Pioneer sx 780

When turned on dial lights up but get no sound from any speaker- how should I proceed? thank you

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  • supapowauppa Feb 22, 2008

    someone i told at a car stereo shop mentioned the audio fuse, or whatever, might be blown. because i mentioned it was hooked up, had power, but no sound was coming from the speakers. not sure how to go about fixing that, but if anyone knows i'd appreciate being told! i dont want to have to return my cd player, i got it for a good price and its PIONEER! XD

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This model has a audio relay at the speakers output. When you turn the unit on there's a short delay and then the audio output switches on. It happened exactly the same with my unit. The problem is that this relay is not "closing" properly so there´s no audio coming to the speaker rear pannel conectors. You´ll find this relay inside the receiver, exactly behind the power switch. It's a clear rectangular plastic box with coils and contacts inside, make sure these contacts close after turning the unit on. You may need to take away the clear plastic box in order to have access to these contacts. Clean them and the mechanism with proper electronic fluid. Make sure these contacts are moving and the springs are ok. Hope this helps. Regards, Andy.

Posted on Dec 02, 2009

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Posted on Jan 02, 2017

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How do I hook up a powered subwoofer to a pioneer sx-316?


Many subwoofers accept both line level (RCA jacks) and amplified inputs (+ and - speaker terminals). The Pioneer SX-316 does not offer line level output, only amplified outputs via the PURPLE + and - speaker terminals. This means that in order to use any subwoofer with an SX-316, the sub woofer will need to accept a + and - speaker wire connections for input Your manual speaker connections are on page 11 of the manual which can be found here: http://www.manualslib.com/manual/260358/Pioneer-Sx-316-S.html#manual

Starting at the rear of the SX-316; run a speaker wire from the PURPLE + and - terminal (SUBWOOFER) to the + and - speaker input terminals on the subwoofer. See your subwoofer manual or experiment (at your own risk) with connecting the speaker wire from the SX-316 to the subwoofer's + and - LEFT only, RIGHT only or BOTH left and right speaker inputs. Do not connect wires from the SX-316 to the speaker OUTPUT terminals of your subwoofer.

Finally, adjust any variable low pass filter knob or setting on the subwoofer to the lowest frequency that your main speakers are capable of producing. If you're not sure what that value is, try setting the subwoofer to 100Hz and judge how it blends with the main speakers. If it seems a little too bass heavy and thick then reduce the setting to 80Hz. On the other hand, if the sound seems to be slightly thin and lacking weight, try increasing the setting to 120Hz. By careful listening and a bit of patience you will be able to get the sound to seem balanced and well blended.

Good luck!

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for
1976 pioneer sx 1250 receiverhas no sound from receiver to speakers

check the integrity of speaker systems,

check the receiver internal components, pay close attention to the

capacitors, possibly have dried up or swollen (age)


Check for continuity to the speaker outputs.


These may take some time, but I hope you will make it.

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A TV is just a glorified night-light, not a sound source - get its related audio from the Cable Box, ditto the highest quality

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HOOK IT UP FROM A DVD PLAYER OR BLU RAY,,, WITH EITHER COMPONENT OR A OPTICAL CABLE ,,MAKE SURE YOU HAVE ALL OF IT TURNED ON ON THE RECIER SETUP

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