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Pa speaker cuts out

Behringer b 300 pa speaker cuts out after short period of operation, perhaps minute or two. Clearly not overloaded by input / volume settings. System essentially new with very little use / movement but out of warranty.

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  • jerry8jb Nov 05, 2008

    Hi I have the same problem. Was intermittent for 6 month, now like rmay's...cuts after 2-5minutes. The clipping lead remains green, the on line red led extinghuish after a pop noise. When cycling the power swith the online red led comes back. The switch on and regain sound...



    Thanks.

    Jerry Briand

    jerrybriand@sympatico.ca

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Just change ic 7815 and ic 7915. D.Donnon

Posted on Jun 07, 2009

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Phonic max 860


Check your speaker wiring, looks like you have a short somewhere and the amp is going Thermal. Use a tester, if the cables into the amp read below 4 ohms you are in overload. Blessings...

Aug 15, 2014 | Phonic Audio Players & Recorders

1 Answer

What does F61 mean


Hi Georgina,


F61 is an error code(protect error code in other brand) for panasonic home theater system. This will trigger if the unit gone to overload to avoid further damaged to other parts. This code is quite technical if your not handy with electronics. However I will say to you the common caused of this error code.


1. Output IC - this is the most common caused of the error code. Once shorts happened to this IC, it will trigger the error code. Exposure to high volume and/or running in the long time will caused this IC to shorts and produce an overload.


2. Shorted Speaker - if one of your speakers shorts, error code will appear also. This may isolate by disconnecting the speaker to the set and play the unit *****. If the symptom still there the fault came from the unit itself.


3. Shorted Inputs - inputs connector is also prone to shorts due to frequent bending and pulling. To isolate this from fault, disconnect all the inputs connected to the unit like the aux input, antenna, mic, etc.


4. Faulty power supply - once gone to out-of-regulation condition, the error code will appear to protect the most expensive parts from further damaged. Bad solder joints in this section is also to consider.


5. Faulty Fan and its circuitry - F61 will appear only after a minute of operation not upon powering on the unit. Check the fan if working or not...


I would advice you to send the unit to your local Panasonic service center and leave the expert isolate the symptoms.


Also, check if your unit is under warranty period, avail it because the manufacturer will fix it forfree.


Hope I helped you.

Good luck and have a great day!



Jdvillanueva

Jan 10, 2012 | Technics Audio Players & Recorders

1 Answer

I have a Behringer PMP 6000 powered mixer. Channels 4 & 5 yellow overload light is constantly lit. No sound from either channel (just a faint hum when volume slider approaches max level...


There are NO "yellow" overload LED's period. The clip or overload RED LED's are just above the PFL buttons for selecting a solo channel. There are "yellow" signal received lights (level set) up near the trim controls. In normal operation these will light when signal is received. Here is schematic for the PMP5000 which is really identical for the 6000.
http://elektrotanya.com/behringer_europower-p0569_hca2400_sps1000_dpx_pmp-1280s_5000_sch.pdf/download.html This has part of the DSP and PS and the PA circuits.
Scroll down to "get manual" and click on it to download. Ignore other download links on the page.
Try turning off the Phantom power if it might be on... If that stops the hum, something is the matter with the bypasses feeding Phantom power to those channels... Possible problem might be shorting of one of the coupling caps at the preamp input. The PMH5000 drawings are more accurate at the input circuits. You will note that the level set LED's are the yellows, and the clip/PFL LED's are the red ones. I suspect that RF bypass caps such as C110 or C121 (example typical for channel one) might be shorted. This makes noise on the Phantom power line unbalanced and will get into the channel where one of these caps is shorted. Do a test: Plug a shorting jack that shorts the tip to the sleeve intot he inssert for the channel. With the LOW CUT button up, observe is the level set LED for that channel dims or goes out. If it does, then I supect you have a shorted RF bypass cap at the input..The next test involves driving a KNOWN balanced signal into the XLR jack and using a TRS in tthe inout 1/4 inch, test the levels with an oscilloscope to verify the hot and the return have equal amplitudes. I they don't, congratualtions you have to tear the main board out... lots of knobs and screws to access the inout circuits and verifuy the cause... it could ALSO be a bad transistor in the inout pair, etc...

Sep 24, 2011 | Behringer PMP6000 VP1520 PA Package

1 Answer

I have a Eupoport EPA 900 system. Recently I started getting a consistent, low pitch and fairly loud hum out of both speakers. The hum adjusts with the volume, and I have tested it with various working...


Is the hum there with NO input cables connected? If not, you have bad cabling. Make sure you use only XLR to XLR mic cables and not the junky ones with a 1/4 inch plug that are for Karaoke machines. These devices usually use switching power supplies and do not have the power supply originating hum of older equipment. If the volume control adjusts the hum, then the hum originates previous to the control which is either in the preamps or the external inputs.

Aug 25, 2011 | Behringer Europort EPA900 Ultra compact...

1 Answer

Hi my panasonic sa vk90d is giving me an f61 problem when i turn it on


Hi,
F61 is an error code(protect error code in other brand) for panasonic home theater system. This will trigger if the unit gone to overload to avoid further damaged to other parts. This code is quite technical if your not handy with electronics. However I will say to you the common caused of this error code.
1. Output IC - this is the most common caused of the error code. Once shorts happened to this IC, it will trigger the error code. Exposure to high volume and/or running in the long time will caused this IC to shorts and produce an overload.
2. Shorted Speaker - if one of your speakers shorts, error code will appear also. This may isolate by disconnecting the speaker to the set and play the unit naked. If the symptom still there the fault came from the unit itself.
3. Shorted Inputs - inputs connector is also prone to shorts due to frequent bending and pulling. To isolate this from fault, disconnect all the inputs connected to the unit like the aux input, antenna, mic, etc.
4. Faulty power supply - once gone to out-of-regulation condition, the error code will appear to protect the most expensive parts from further damaged. Bad solder joints in this section is also to consider.
5. Faulty Fan and its circuitry - F61 will appear only after a minute of operation not upon powering on the unit. Check the fan if working or not...
I would advice you to send the unit to your local Panasonic service center and leave the expert isolate the symptoms.
Also, check if your unit is under warranty period, avail it because the manufacturer will fix it for free.
Let me know if you need further assistance.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

May 12, 2011 | Audio Players & Recorders

1 Answer

NAD 3020 amplifier cuts out on one channel as the volume increases with an audible click When the volume is reduced to zero, after a short time sound is available again on the faulty channel but cuts...


Swap the speakers to see if it correlates.

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

Apr 23, 2011 | Audio Players & Recorders

1 Answer

What if went in safety mode, safety mode is froze in screen. Won't do anything


"Safety" mode - literally? I don't see that anywhere in the manual.

Page 13

Speaker Connection Precautions

(North American and Taiwan models) You can connect speakers with an impedance of between 6 and 16 ohms. If you use speakers with a lower impedance, and use the amplifier at high volume levels for a long period of time, the built-in amp protection circuit may be activated.

Page 66

The STANDBY indicator flashes red


The protection circuit has been activated. Remove the power cord from the wall outlet immediately.

Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and set the volume to maximum. If the AV receiver stays on, set the volume to minimum, disconnect the power cord, and reconnect your speakers and input sources. If the AV receiver turns off when you set the volume to maximum, disconnect the power cord, and contact your Onkyo dealer.

Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Apr 04, 2011 | Onkyo TX-SR608 Receiver

1 Answer

Behringer pmp4000; not getting much volume from system 2 speakers going through main 1 out both L R A/B switch is to the top main L R tried guitar computer in channels 9/10 via rca still minimal...


You would get about 200 Watts RMS per side using 8 ohm speakers. "Not much volume" is very relative. With the two 12 inch speakers you should be able to fill a 600 to 1000 sq ft room nocely.

Mar 05, 2011 | Behringer PMP4000/B212XL Mains & Monitors...

2 Answers

I have been using two Peavey Pro 15 Mk ii 300 Watt Passive 15" Speakers with two additional speakers on the output side and i notice one of the peavey speakes wasnt working! i then realised i had the...


Passive speakers with 1/4 inch jacks do not define either as input as they are wired in parallel...

Assuming the speakers you added were each no less than 8 ohms this should NOT have overloaded your amp.If you have no sound you have probably blown your amp some way.

Note some amps can be blown if they are on and EITHER side of the speaker cable touches a ground. If the amp is running and a 1/4 inch plug is pulled, it shorts and can blow the amp.

Jan 17, 2011 | Peavey PR15 400w PA Speakers

1 Answer

My reciever plays then cuts out


They don't overload from missing speakers. I'm curious, what buggered the one speaker?

Examine all of your speaker wires carefully to be sure no unintended contact is made between them and anything else.

Is "overload" being displayed?

“OVERLOAD” starts flashing on the display.

Speakers are overloaded because of high volume.

1. Press STANDBY/ON on the front panel to turn off the receiver.
2. Stop the playback source.
3. Turn on the receiver again, and adjust the volume.
----------------
Speakers are overloaded because of short circuit of speaker terminals.

Press STANDBY/ON on the front panel, then check the speaker wiring.

If “OVERLOAD” does not disappear after turning on the receiver again, unplug the AC power cord, then plug it back in again.
If speaker wiring is not short-circuited, contact your dealer.

Mar 31, 2010 | JVC RX-6042 Receiver

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