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Hi...I have an old Sanyo DC6100K 4 Channel Stereo System (circa 1970's). Still works OK except the right rear speaker outlet has developed a loud crackling. Changing speakers does not help. The crackle volume is constant and is there whether 2 or 4 channels or discrete is selected, and only can be stopped if speaker is disconnected from right rear socket. I would appreciate any ideas on the possible cause please. Thanks.

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To the original poster I just inherited one of these machines. Afraid I cant be of much help with the speaker issue but mine was missing its turntable belt. Any chance you know of measurements or model or somewhere I could order a new one? Same question for the stylus?

Posted on Aug 31, 2014

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Posted on Jan 02, 2017

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Grubhead
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SOURCE: crackling

Possibly bad news I am sad to say. You might have lost the transistor in the right channel output Or if it is an IC that. The things on the heat-sink! However you might be lucky and it might be just either a bias resistor or a ceramic capacitor. The small components are cheap the bigger ones tend not to be. Resistors often look burnt, but apart from that is a case of replace and see.

Posted on May 31, 2009

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SOURCE: NAD 3020a crackle in right channel regardless of volume.

more than likely you have a bad transisitor on that side and the frequincey is distorted there's not much you can do except take it back if it's new or take it apart and check for the bad part but if you do that you had better know what your doing!! it may be just 12 volts but thru an amp it's a nasty shock

Posted on Jul 26, 2009

marcandreauc
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SOURCE: Behringer EP2500 amplifier channel crackling noise

Got asilimar problemwit a behringer europower pmh 3000.
my

The Right channel began to crack up and drizzle now it seems completely dead.
Changed the cables both of input and seapkers , still the problem stays the same. Any suggestion before brigning for a month at the repair shop? And get out with a 200-400$ bill ?

Posted on Jul 22, 2012

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My rear speakers won't work in my 2001 Malibu. Stock system and wires to speaker okay. fader set Correct. Could it be speakers are junk?


Get a known good speaker an hook it up in place of the old ones an see if it works , if it does the old one is no good . Now if it doesn't work the radio isn't set correctly or that channel of the radio is blown .

Oct 23, 2016 | 2001 Chevrolet Malibu

1 Answer

No volume on all left side speakers


Determining the Cause of the Problem Let's assume our system has a head unit, a crossover, a two channel amplifier and two door speakers with only the right speaker working (the left speaker is not working). If the door speakers are behind the door panels then we want to make sure the speaker is the problem before removing the panel. We'll work backwards starting with the amplifier and ending at the head unit. Testing for a Speaker Problem With the vehicle and the stereo turned off disconnect the speaker wires for both the left and right speakers at the amplifier. Now connect the left speaker to the right amplifier output (which we know works). Turn on the stereo system and make sure the balance is set to the middle position.If the speaker still doesn't work then the problem is somewhere between the amplifier and the speaker Testing for an Amplifier Problem Now we'll need to see if the amplifier channel is bad. Put the left speaker back on the left amplifier channel and the right speaker on the right amplifier channel. This returns the speaker wiring to its original configuration. Again, with the vehicle and stereo off unplug the RCA cables from the amplifier's input and switch them so the left cable is in the right input and vice versa. Turn on the stereo system. Testing for an RCA Cable Problem For any intermediate components between the amplifier and the head unit follow these steps for each one. We only have a crossover so we'll just do this once. Begin by testing the RCA cables between the intermediate component and the amplifier. Unplug both RCA cables from the intermediate component's output. Now plug the working channel's RCA cable into the non-working side of the crossover. In our case the working channel is the right so plug the right RCA cable from the amplifier into the left side of the crossover. Turn on the stereo system.
If the right channel continues to work then you know the problem is in the RCA cables between the amp and the crossover. esting for a Crossover or Equalizer Problem At the input of the intermediate component (in our case the crossover) flip the RCA cables around (left to right input and vice versa). Turn on the stereo system.
If the right channel continues to work and the left channel continues to not work then you know the problem is in the intermediate component. Replace or repair this component.
If the problem is now in the right speaker and the left speaker works then the problem lies before the crossover. Turn off the stereo system and return the RCA cables to their normal places.
Testing for a Head Unit or RCA Cable Problem Pull out the head unit from the dash so you can access the RCA cables. Unplug both RCA cables from the head unit. Do not disconnect any other wiring. Plug the right RCA cable into the left channel of the head unit. Turn on the stereo system.

Sep 29, 2016 | Cars & Trucks

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I need to know step by step how to hook up my entired system using my macki board. I have a Mackie 1604 Vlz, a power amp for mains, a power amp for subs, a crossover, a vocal effects processor, and a 16...


ok, first thing will be the effects processor. look for the "aux sends" output jacks near the bottom center of the rear panel. run a 1/4 inch instrument cable from "aux send" 3 out into the input on the vocal processor, and run another from aux 4, if the effects processor has 2 inputs. then, from the vocal processors output, run 1/4 inch cables back into the "stereo returns" on the mixer, (located on the rear panel on the bottom, extreme left) 2 outputs per input, since its making stereo effects. so, if you ran just send 3 into the processor, you should have a left and right return instrument cables into the mixer for "stereo return" 3 (left and right). if your processor has 2 imputs, and you are using both "aux send" 3 and 4, then you will have to have a pair of cables going to each "stereo return" for 3 & 4. -to apply effects to a microphone(s), you would adjust the individual aux send levels for each channel you want to have effects, and you would have to ensure that the master aux sends and returns are also turned up..

ok, the snake is simple, each xlr (3 prong mic) connector on the snake is labeled, so, just plug each xlr jack into the corresponding channel on the board, and plug the first 2 1/4 inch ends of the snake into the "C/R out balanced" outputs on the board, located on the rear panel, up and to the left a bit.

at the stage end of the snake, ues a 1/4 inch instrument cable to copnnect the first 2 1/4 inch jacks on the snake to the left and right inputs of the crossover. then, from the crossover, connect the sub power amp to the "low" stereo outputs of the crossover with instrument cables, and connect the main speakers amp to the "high" stereo outputs of the crossover with instrument cables. if its an adjustable corssover, you will want to have it crossed over somewhere about 80-120 hz to allow only the lowest frequencies to the subs.

now, from the amps to the speakers, we ane going to have to use heavier 12-14 gague SPEAKER CABLES, instead of light gague instrument cables. hook the subs up to the stereo speaker outs of the sub amp with speaker cables, and do the same for the main speakers.

Nov 25, 2010 | Mackie 1604 Vlz3 16 Channel Mixer

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I have 4 speaker wires, black green red white speaker left + speaker right + speaker left - speaker right - which cable goes where?


4 speaker wires, black, green, red, white ;speaker left +speaker right +speaker left -speaker right. First see what pair of speaker wires go to left the channel of the amplifier. One of each speaker must be connected to each amplifierĀ“s channel, no matter of colors of the wires. Two wires for each speaker to each channel of the amplifier (rear panel + and -). Then you will have 4 wires connected to 2 stereo channels of your amplifier. Two wires for each speaker.

Sep 17, 2010 | AudioSource Amp Four 2-Channel Amplifier

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Play back on Sanyo mr-929 reel-to-reel tape recorder is backwards


I also have an MR-929. The information that you need is in the 'Stereophonic 4 track stereo''. As stereo is only two tracks, there is another 2 tracks in addition to the one you are listening to. Wind the entire reel to the empty spool, and then play that. As you have to physically turn the reel over to do so, you should then hear the other tracks (or track, if recorded in mono).
I use my 929 to play my parents recording of my family from the late 60s, which were recorded on a valve (tube) Ferguson machine, which had a green "magic eye" level indicator, which as a child I found fascinating!

Howie

Mar 31, 2009 | Audio Players & Recorders

3 Answers

Radio on but no sound


i have a 1994 eagle vision, with the premium sound system (infinity) and yes you do have a amp in your car if you have that sound system and its in the trunk of your car to the left while looking at your trunk from the back of the car :) also if you tryed putting in diffrent speakers other then stock thats your problem you have to rewire new speakers cant use old wiring because it goes threw the stock amp and for some reason the stock amp only works with the stock speakers :P

Oct 01, 2008 | 1995 Eagle Vision

1 Answer

Installation


If you've got a standard 4 speaker system (2 front, 2 rear), your best option is to connect both left speakers to the left channel amp output and both right speakers to the right channel amp output. The only thing you lose is the ability to fade the speakers front to back.

Mar 04, 2008 | Legacy - American II: 2 Channel 1200W...

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Dell 5650 speaker wire adapter


As I understand it, this adapter is used ONLY to adapt a standard 2-channel stereo output to the 3, 1/8" plugs of the Dell 5650 5.1 system. These 3 plugs would normally plug into the front, rear, and center/sub outputs on a computer designed to output 5.1 channel sound.

To make this clear, what this means is that the output you get from your 2-channel stereo system, using this adapter with the Dell 5650 5.1 system, will NOT be full 5.1 surround sound...it will be 2-channel stereo signals intermixed so that it plays from the 5650 system through the Dell amplifiers and speakers...nothing more.

This cannot be over-emphasized. The adapter does NOT create true 5.1 sound from a 2-channel stereo output system.

If you are hoping to get true 5.1 output from a 2-channel stereo system, you will be disappointed.

All this adapter likely does is split/mix some of the 2-channel signal into the rear channel, and split/mix some of the SAME 2-channel signal into the center-sub channel, just so you will get some output from those speakers. There may be some low-pass filtering for the sub-woofer input.

It is almost certainly a very simple passive circuit consisting of resistors, capacitors, and possibly an audio transformer or two.

Look for circuit on Do-It-Yourself electronic sites and build it yourself...or you're almost certain to be ripped-off.

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You can download the installation manual from the link below: http://www.sony.co.id/support/product/xm-554zr?site=hp_en_ID_i It has the following diagram plus other hookup info... Please update the question & let us know if the information given was useful to you - Good Luck!

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How this reciever is set up is there are left and right A and left and right B Only one 8 ohm speaker should be attached per outlet. if you exceed that your driving the channel at a much lower resistance then the units designed for and the channel will burn up.. Oh it might last a short time but bet your last dollar it will burn up the channel if you over load it. Please dont forget to rate this.

Oct 15, 2006 | Pioneer VSX-454 Receiver

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