Question about Panasonic SA-HE90 Receiver

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Surround sound system is not producing sound through the subwoofe

Panasonic Model SBWA310 - subwoofer is not producing sound.

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Several things could cause this, to make sure the sub woofer is working at all disconnect the cable from the back of the receiver. You should hear some sort of output from the subwoofer when you handle the plug. IF so replace the plud and go into your settings menu (press the A and B button at the same time) and go through the speaker set up. It may be that the receiver has not retained the memory that there is a sub woofer connected.

I hope this helps.

Posted on Feb 27, 2009

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I have a vsx44 pioneer and i plug my subwoofer do not work my sub has 2 wires and i have an adapter to plug at the receiver


Is the adapter on the back of the receiver a yellow one (like a tv's red/white/yellow)? And the sub itself is a 2 wire (red/black)? If the subwoofer is just a speaker with no electronics and you answered yes to the first two questions then continue reading...

Problem: New receivers suck and are made for subwoofers that are self powered. The subwoofer input on the receiver only puts out a low signal. The subwoofer itself will amplify the the signal.

Solution: Find a receiver that supports the older subwoofers or do like I did... buy a used 3D surround system for around $10 on eBay, if you don't have one laying around. Be sure to find one that shows a picture of the back so you can verify that it has the 2 wire inputs and supports a subwoofer. Once you have it, connect a cable from the receivers subwoofer output into the surround systems input. It will be only one wire so plug it into the left (white) input on the surround box. You can also use a splitter to get both left/right inputs.

This will enable your subwoofer to be used again and will also give you alot more control over it. Turning off the surround sound box will allow you to keep the bass off when needed. You will also gain individual volume control over your subwoofer this way. I hope this helps!

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Subwoofer not working.... JVC surround sound system 778V Subwoofer Part Number SP-PW37-SUB I hear a hum coming from unit so there's power going to it. I hear weak bass thumps with volume turned all the way...


A connectivity check could provide the solution, notice any wrong wire connections on device or any other devices requiring interconnection. The woofer would perform properly when the connections that provide current for woofing are approapiate

important notes
1. Trace the connection from Recorder or sound output to the woofer device
2. The wiring connections should be sound and video ouput into sound and video output into woofer.
3. The connections if any problems would be located at the stereo recorder or device producing the spund and video. Check the connections of wires on the recorder device ensuring rewiriing
4. finally, adjust the equalisers if any the buttoms could have been disbled by master switch hindering full blaster boost sound.

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Maybe the surround processor is having a bad day... My kenwood would do similar and a reset was necessary to correct. Have you tried resetting the system? On my Sony STR DE 597 this is accomplished by powering off. Then while holding the 2 channel button down (front face plate) power on. A reset message is displayed. Your model may be similar but check your manual or download the PDF of the manual from Sony's support website. Hope this helps

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My Panassonic SA-XR50 Receiver is not producing surround sound from either of the Optical imputs from the TV or DVDR Both outputs are stereo L and R + subwoofer How do I rectify this What settings should I...


First enable the surround sound mode for the selected input and verify that the media playing is recorded in some mode of surround sound.
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the difference is the "same speaker connections"
the front and rear will connect the same but the subwoofer is amplified by the HT75 , and the HE75 does not have an internal amp for the subwoofer speaker , only a "pre output"(has to be amplified)

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The surround processing portion of the unit has a problem. In either stereo or direct mode, the digital procesing is bypassed. This could be just the surround processing IC, but that IC may not be available as a separate part. I would suggest that you bring this unit to an authorized Onkyo service center for an estimate.

Dan

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How do i connect my subwoofer to my tv


Have you tried connecting an AV cable from yoursuboofer to your TV?
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Is your subwoofer apart of a surround sound system or is a separate unit?

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Hey Tad, I have the same problem and perhaps a solution. I just moved to the other SW "pre-out" and it seems to be working..the green light is on . Whatever works i guess.

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The easiest solution to use your subwoofer is to buy an amp for it. Any old stereo receiver from a garage sale will probably do just fine.
  1. Connect the mono RCA subwoofer output from your Sony with a 1xRCA-to-2xRCA splitter to both the left and right input of the cheap reciever's tape or aux input
  2. connect both speaker outputs of the cheap reciever to the speaker input on your subwoofer. make sure both black (-) outputs on the reciever connect to the black input on the sub, and the red outputs (+) on the reciever are both connected to the red input on the subwoofer.
  3. make sure the cheap receiver's volume is all the way down. turn your Sony up to about the loudest you'll listen to it. turn up the subwoofer amp until it's loud enough to sound good.
  4. leave the subwoofer amp alone, the Sony volume will all you ever need to touch from now on.

You can even now turn off your subwoofer / adjust the volume easily now!

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