Audio Players & Recorders Logo

Related Topics:

j
john crown Posted on May 08, 2019
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

I have a Pyle PFMRA340BB Amplifier. Worked great for several months, but now Left channel is dead, whether BT or RCA input, the Left channel just pops and issues a dull roar.

Seems like the Left output amp died. Does anyone have circuit diagrams for the device. Or, who repairs.

1 Answer

Grubhead

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • RCA Master 5,755 Answers
  • Posted on May 09, 2019
 Grubhead
RCA Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Jan 21, 2009
Answers
5755
Questions
4
Helped
1662318
Points
11417

Stereo amplifies are just two mono ones joined together. So if you have a problem with the left you can always look at the right side if that is working good. As all the parts are the same and so are any voltage readings taken. A visual inspection is the first option, if something looks strange in the left channel compared to the right, then replace it with the same part you can see in the right. The only problem is when the amp uses one power amp for both channels. But in that case replace the thing.
Apart from that individual parts, such as the power supply, you can leave alone, as they would affect both channels.

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Feb 01, 2007

SOURCE: Output volume has dropped in right channel

dear sir,pls check the HT voltage fuse, LTsupplay also and out put stage,and volume controle,

Ad

Anonymous

  • 2 Answers
  • Posted on Jan 23, 2008

SOURCE: Left channel out

There are NO mechanical pots on the system. The "pots" for volume are a special bitsequence comparator, and the signal for the gain on the amp is a modulated matrix signal.

The most common problem for this kind of amps are the safety-thermal switch... They are normally located really close to the output for the speakers. Normally gray or black boxes (30x10x40mm). Flick your finger on them with volume at 9 o'clock...

If you can hear a click, and the sound appear again you've found the sollution.

NOTE! Hazardous currents are present inside the cabinet, mind your fingers, arms and other bodyparts.

Anonymous

  • 4 Answers
  • Posted on Feb 05, 2009

SOURCE: NAD C272 Amplifier: Intermittent left channel

My solution was actually indeed the output protection relay. What I did was to open up the relay and use contact cleaner and a very fine abrasive to clean the contact surfaces of the relay. After that, the problem was gone!

The way to diagnose this for me was to run the amplifier open until the problem recurred and to simply tap the relay's box. The sound came on immediately, and I was convinced.

Anonymous

  • 15935 Answers
  • Posted on Apr 09, 2009

SOURCE: My amplifier has one pair of rca inputs. radio only has 1 output

Subwoofer signals should be MONO - not stereo (hence the single Component out on the radio)
Only use one RCA to send signal to your amplifier.

If you use a Y splitter - the signal voltage will be cut in half - deteriorating the quality, and therefore amplifying "dirty" signal.

If you require further help, simply reply to this thread.

Thanks for using FixYa - a FixYa rating is appreciated for answering your Question.

Anonymous

  • 66 Answers
  • Posted on May 05, 2009

SOURCE: Marantz Pm-7200 left channel weak compared to the right

hmmm. Let's start by swapping the wires you are using for your speakers. Double check the wire connections first, then take the left and place iton the right and vice versa.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

How do I add a 2 channel amp to a Denon avr 2307ci

To add a 2-channel amplifier to your Denon AVR 2307ci receiver, you can follow these general steps:
1. Determine the amplifier connection type: Check the specifications of your 2-channel amplifier and identify the available input and output options. Common connection types include RCA (analog) and speaker wire (for binding posts or terminals).
2. Identify the pre-out connections on your Denon AVR: Locate the pre-out connections on the back of your Denon AVR 2307ci receiver. These are typically labeled as "Pre Out" or "Preamp Out" and may be color-coded. You will need to find the pre-out connections for the front left and right channels.
3. Connect the RCA cables: If your amplifier has RCA inputs, use RCA cables to connect the pre-out connections of the Denon AVR to the corresponding inputs on the amplifier. Connect the left channel pre-out on the Denon to the left channel input on the amplifier, and do the same for the right channel.
4. Connect the speaker wires: If your amplifier uses speaker wire connections, connect the front left and right speaker outputs of the Denon AVR to the corresponding inputs on the amplifier using speaker wire. Make sure to observe the proper polarity (positive and negative) when connecting the wires.
5. Configure the Denon AVR settings: Access the setup menu of the Denon AVR by using the remote control or the front panel display. Navigate to the audio settings or speaker configuration section. Look for an option to enable "Preamp Mode" or "Preamp Outputs." Enable this option to ensure that the front left and right channels are redirected to the pre-out connections.
6. Set the amplifier to the correct input: If your amplifier has multiple inputs, select the input that corresponds to the connection from the Denon AVR.
7. Adjust volume and settings: After completing the connections, you may need to adjust the volume levels on both the Denon AVR and the amplifier. Use the Denon AVR as the primary volume control and adjust the amplifier's volume accordingly.
It's important to consult the user manuals for both your Denon AVR 2307ci and the 2-channel amplifier to ensure proper setup and compatibility. If you're uncertain about any specific steps or settings, it's advisable to consult the manuals or reach out to Denon customer support for assistance.

This video MIGHT help a little
0helpful
1answer

What are the input wires on a audiovox amp777

The Audiovox AMP777 is a 4-channel power amplifier, and the input wires will depend on the audio source you are using. Typically, the amplifier will have RCA input jacks for left and right channels, and you would use RCA cables to connect the audio source to the amplifier. Some amplifiers also have a high-level input option, which would allow you to connect speaker wires directly to the amplifier's input terminals. However, it's always best to consult the user manual or contact Audiovox support for specific wiring instructions for your amplifier model.
0helpful
1answer

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.
0helpful
1answer

I have vestax 05pro2. Left channel works but out of one speaker. The turntable input is good. Im thinking Its either the channel fader, or the rca inputs for that side. Has anyone had this problem?

Hi,
Here's a solution to see if you have a problem with either your receiver or turntable.
The turntable has 2 RCA's one red for right channel, and one white or black for left channel, which plug into the back of the amplifier.

  • Unplug both RCA from rear of amplifier.
  • Plug in a cd or dvd player into those inputs on the amplifier, the sound will be lower but it will give you an indication if the amplifier is ok or not.
  • If you have sound on both channels left and right then the amplifier is good
  • If you still only have sound on left channel, then there is a problem with the right channel input on the amp.
  • If your amp, is good, unplug the cd /dvd player.
  • Put a record on and start playing the record
  • Plug the white or black RCA from the turntable into the rear of the amplifier marked left, you should have sound.
  • now unplug it from the left and plug in into the right red RCA socket, if you have sound the amplifier is working fine.
  • if there is no sound there may be a problem with the stylus cartridge on the turntable
  • now lets reverse the test
  • unplug both RCA from amp.
  • Plug the red RCA into the left socket on amplifier, if there is sound, turntable is working fine, if no sound there is a problem with either the stylus cartridge or that red RCA cable.
  • now unplug the red RCA from the left side and plug it into the right side socket
  • if there is no sound there may be a problem with the stylus cartridge or RCA cable.
I hope this helps

MobileJB
0helpful
1answer

Hi, my RCA CRC311 BT turns on my Sharp television, changes the channels, etc, but it won't switch to video mode, even when I hit input. It is an old TV, but I used it to watch videos, dvds and play games...

Unfortunately you will not be able to switch input.
I also have a Sharp, I have tried 5 different universal remotes. None will switch input. I guess that function is not provided properly.
Good luck!
0helpful
1answer

Protection red ligth comes on.

are you over-loading the input channels?the rca cable input can only take O watts or really low watts
0helpful
1answer

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 ?
0helpful
1answer

Protection light stays on no output

i have the same amp and have that same issue before. yes you are correct that if you take off the RCA cables on the input there will be no light. either you have plug the remote line on the 12v or a grounded sub. it should be 12v/remote/ground from the corner. good thing im just fixing my sub earlier. it is no problem if you have hooked the remote line on the 12v, it is the same supposed to be. to check if your amp is working, short the 12v/ and the remote line and play your stereo and see if your sub is working. by the way, what sub are you using? i just blew my sub and need a new one.
0helpful
1answer

MTX 502 2 chanel amp Pre amp problem?

Unless your amp is 1 (one) ohm stable then you may have fried it. When you attach a 2 ohm load across a bridged amp then you have effectivly placed each output channel on a 1 ohm load. Not a good thing in most cases. Try hooking up ONE speaker on one channel and one input to that one channel one at a time. Then switch the speaker/input to the other channel and see if you can get either or both channels to work independently. Needless to say you must turn the amp off before you make ANY change in the wiring.
0helpful
1answer

My amp is only pushing the left.

Swap the RCA inputs to see if the dead channel follows the RCA input.
Not finding what you are looking for?

221 views

Ask a Question

Usually answered in minutes!

Top RCA Audio Players & Recorders Experts

Cindy Wells

Level 3 Expert

6688 Answers

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Are you a RCA Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...