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I have fisher stereo amplifier ca271 i no audio from left channel intermittingly finally it pop the main fuse i suspect darligton pair output amplifier is at fault my problem live in ajax ontario canada where can i get replacement parts

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5 Suggested Answers

  • 21 Answers

SOURCE: Onkyo TX-28 Receiver Output Problem

You may be confusing +/- power supply rail fuses with left and right speaker fuses.

Posted on Sep 03, 2007

SOURCE: Reads PROTECT on the display of my Onkyo TX-SV525 ???

HOWDY,         NOW YOU COULD TRY THIS ONE: POWER THE RECEIVER UP , THEN PUSH&HOLD !THE VIDEO 1 BUTTON, THEN TURN THE PIECE IN THE OFF (STANDBY MODE ) ,IT WILL SAY "CLEAR SO IT SHOULD BE BACK TO IT,S ORIGINAL FACTORY SPECIFICATION,S.

SUCCES !                              AMSTERDAMCOWBOY-HOLLAND-NOW FLORIDA! 4-EVER

Posted on Oct 23, 2007

  • 4234 Answers

SOURCE: Blown Channel on an amplifier

Look for low valued resistors that may look ok, but be open. Check the emitter resistors (.22 or .47 ohms). Check the transistors in the driver circuit as well.
Dan

Posted on Jun 06, 2008

marsrover
  • 682 Answers

SOURCE: Loss of volume on left channel

please repeat speaker setting from your manual and confirm that left channel is ok.-invert left channel plug with right channel plug if the problem moves from left to right you will have the problem in your speaker or its cable-if not the problem in your receiver itself.
you can apply contact cleaner in volume control and move it forward and backward and test.

Posted on Jul 06, 2008

dunnbiker
  • 8546 Answers

SOURCE: no audio output

Were you playing it very loudly when it died?

The manual is here for reference...

http://www.docs.sony.com/reflib/docget.asp?manualid=11654&template_id=1&region_id=1&DL=',600,560,10,10,'Manuals'

It discusses troubleshooting this problem on page 50.

When you turn the receiver ON does you hear a light click in about 5 seconds? That would be the protection circuitry turning OFF to allow the amplifiers to function. The delay is to allow the circuitry to stabilize before it sends any output to the speakers. If you don't hear a click the unit is Protecting the speakers due to malfunction somewhere.

If no click and no apparent messages try turning the speakers OFF using the Speakers button directly below the Power button (1/0). This will eliminate or point to external shorts as the cause.


Does the unit click after 5 seconds of Power ON with the speakers OFF? Isolate your shorted speaker or wire problem.


Still no sound at the speakers when you turn them ON?

We need to establish if there is any programming flowing through the receiver.

A quick basic check would be to tune an FM station, if you have a tape deck attached, place it in Record or Record/Pause mode so it can display the input signal levels. You should see the record meters fluctuating with the level of the program selected. If you don’t have a tape deck, run an RCA cable pair from the audio output for a tape deck to an analog audio input on your TV. Select that input on the TV and you should hear the FM station, or anything the receiver is configured to play. If it's silent then there is no audio signal circulating in the receiver to get out to the amplifiers.

If you hear the program on the TV but not through any attached speakers, then the amplifiers are all disabled for some reason.

If there is no audio flowing through the receiver the problem could be a switch in the wrong position, source not selected, muting on or a multitude of other things.

Let me know how this turns out.

Posted on Apr 03, 2009

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1 Answer

What can be connected to te audio output jacks on the back of this set?


You didn't include make and model TV; so only generalized answers are possible.

Typical RCA phono jacks like those shown in the blue box of the stereo amplifier below:

25998201-ac5bgneb45fvu53muoueauti-3-0.jpg will accept cables to connect to other audio devices. The audio RCA jacks are color coded RED (right) and WHITE (left) for low level stereo signals. Some have YELLOW jacks for Standard Definition video, ORANGE jacks for AC3 Digital audio and newer amps have HDMI jacks.

Connect the TV's audio OUTPUT jacks and a stereo pair of unused audio INPUT jacks on the amplifier with cables that have ends that match each. Turn on the stereo & TV and select the input on the amplifier that matches the stereo pair of inputs you used to connect to the TV. Adjust the volume to hear the audio over your stereo system's speakers.

Use the HDMI or AC3 sources for superior audio - including 5.1 (or better) Dobly Digital when possible. Otherwise, a standard 2 channel stereo program will be heard.

I hope this helps & good luck!

Dec 08, 2015 | Televison & Video

1 Answer

CDJ1000mk2 No Audio Output on Left Channel


Check the left channel speaker for damage. If it is Ok, the audio output circuit to left channel should be troubleshooted. Seek any technicians' support.

Jun 12, 2012 | Audio Players & Recorders

1 Answer

I want to get a mono audio output from the TV audio sockets to combine the L&R channels to a magnetic loop amplifier. At present I only use the R channel) I want to keep the main sound as-is so that...


I assume you are taking an output from either the "Phono" or "Cinch" sockets on the TV.
There are leads available that combine left and right channels to one output. All you do is buy a Phone lead with the correct plugs on it. The lead will be a stereo lead. Cut the cable and join the screen/braided outer wired together. Connect the TV stereo inners together and you have a mono output. The TV has a buffer to ensure no damage is done to the sockets. If you want you can use a pair of 10k resistors in a "Y" configuration but as it is not a balanced amplifier input, it really doesn't matter.
Just use one of the plugs for your Induction Amplifier and you will get a mono signal on your loop that contains all of the audio information.
Hope that helps.

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Hi I have a mackie sr series 24.4.2.b bus miximg console in for repair,most of it is working except that the right channel output is misssing on on sub outputs 1 and 5 and 3 and 7,i do not think its...


Remember that the subs are each MONO outputs. They do not have stereo outs. They can be used as pairs like 1-2 for stereo and those should PAN with the pan control at each channel assigned to a sub.

For mono's, the left channel is the one used.

Refer to the signal flow diagram for the Mackie mixers to analyze this. It probably is on page 28 of your manual.

For the subs, you can pan AT THE CHANNELS ASSIGNED between for instance sub1 and sub2. Note these work together as odds and evens.

Jul 14, 2010 | Mackie 1604 Vlz3 16 Channel Mixer

1 Answer

I just bought a 98 concorde lxi and no sound coming out of the speakers, radio comes on and shows channels just no sounds


Hello georgouseyes,

The problem could be in the output from your receiver to the amp or in the amp itself.

First check to see if the amp powers up. If it doesn't, check the main power fuse (usually located under the hood near the battery). Also check the power and ground connections on both ends.

If the main fuse checks OK, check both onboard fuses. There's 2 35A fuses on the far right.

If the amp powers up OK and the onboard fuses are not defective, it's possibly the output from your receiver or line output converter. Replace the RCA cables with a known good pair. If there's still no sound, I'd suspect that the amp itself is defective.

Hope this helps.

Oct 17, 2009 | Infinity 475A Car Audio Amplifier

1 Answer

The left channel of my stereo goes out sometimes


The most common cause of this is corrosion on the output speaker relay contacts. A simple test can confirm this: When the channel drops out, try turning up the volume. If the channel kicks in again, the relay contacts are the likely problem. The higher volume generates a higher voltage which essentially "jumps the gap" and restores contact.

Keep us posted.

Da n

Apr 26, 2009 | Kenwood Audio Players & Recorders

1 Answer

Left channel main and remote dead no sound output


That would be the most likely part to fail. Verify that the voltages to the pins are the same for the one that works and the one that does not. If the voltages are the same for both, the IC is defective. If the voltages differ, look for low valued resistors that are in series with the IC power leads and check them. These resistors act like fuses,

Keep us posted.

Dan

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3 Answers

How to connect bose 901 speakers to 5.1 setup?


The solution is simple and cheaper than you think.

The analog 5.1, 6.1, 7.1 outputs on your receiver should be active even with digital inputs that you want to hear. Your receiver turns everything it processes into analog output just before the speakers anyway so there's no loss of access to multichannel sound this way.

What I did was to buy a separate amp for the 901's and feed the Front L&R analog audio out to the EQ which is directly in front of the amp. The Active EQ is only for the 901's which don't have woofers or tweeters so Bose flattened out its final response electronically with some serious boosting at both ends. Having it in line with any other speakers would feed them a grossly over-compensated signal.

Your receiver will drive the rest of the speakers.

This is the cheapest way to have your 901's and hear them, too. Since the 901's are really efficient you don't have to buy a big amp that would heat the room. I'm using a separate Carver amp with 2x100w for mine.

Sep 09, 2008 | Bose 901 VI Main / Stereo Speaker

1 Answer

Hook up pioneer stereo amplifier model SA-1270


for audio system always you have left and right channels.
get the output (left&right) from tuner---go to equalizer input left&right.---from equalizer output go to amplifier inputs.and certainly from amplifier output to speaker.

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