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Philips FWM197/05 issues amplifier issues

2 yr old unit was working fine, now no volume. Checked all obvious causes, so possibly amplifier burnout? Repairable?

Posted by Anonymous on

3 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: rca jacks input

you need the speciall conector becous its a little problem your conections

Posted on Jul 04, 2007

professio101
  • 158 Answers

SOURCE: X5 AMPLIFIER WORKING ON ONE CHANNELONLY IS IT

The cost effective solution is to replace. Repair cost vs. replace cost =

Posted on Jul 10, 2009

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Hi there, I have just replaced faulty rca's on my


Possible internal damage on the unit, please replace back with the old unit to confirm if the connection pins and wiring are working. If so you need to check with a new unit.

Aug 02, 2013 | Technics Audio Players & Recorders

1 Answer

My MTX Jack Hammer JH300 Amplifier is warming up... A red led indicates that the amplifier is warming up.I checked the conections and everything seems to be ok, I've a 10" Jack Hammer JH 4510 Sub...


Check the speaker connections from the amp to the box and inside the box to the sub. Its possible these came loose from vibration. Also gently push in on the sub. It should move freely and feel spongy. If it drags or is stiff the sub may be bad. Use an Ohm meter and test the sub. There is an Ohm rating on the sub (usually 4) and it should be close to that. Also check the audio in. Maybe the amp/sub combo is fine but there is no sound going in. Use an MP3 player with a 3.5MM to 2M RCA cable as an input. Start with the volume all the way down and SLOWLY raise the MP3 volume.
Please Rate!

Apr 28, 2011 | MTX JackHammer JH300 Car Audio Amplifier

2 Answers

Checked both speakers..no matter which i connect to right output speaker terminal.get static.speakers r fine. system is ten years old.


Right output transistor is fried, replace . Take old ones (both left and right) to radio shack for new replacements.Replace BOTH

Dec 07, 2009 | Adcom GFA-5300 2-Channel Amplifier

1 Answer

Amplifier Issues


HERE is the manual for your amplifier.
It is listed as being 4ohm STEREO stable Bridged.
Meaning the lowest impedence possible on (2) bridged channels is 4 ohms.
If you have a Dual Voicecoil Subwoofer, chances are - it is wired in parallel - resulting in a 2 ohm load.
This low resistance causes rapid heat buildup, and is causing your amplifier to go into protect mode.
There are many reasons the amplifier is doing it NOW as opposed to the prior vehicle...
If you alternator is not giving your amplifier 14V, it must work harder to produce the same amount of power. WORK = HEAT!
If the head unit is not the same, the signal voltage also has an effect. If the voltage is lower, the amplifier has to work harder to keep up at the same "volume" setting.
In any case, you are over-driving the amplifier, and it is shutting down with its thermal protection circuit.
Either lower the gain on the amplifier, or purchas a mono channel amplifier made to drive subwoofers.
Your Subwoofer is craving power, and you're giving it 60W !!

Thank you for using FiXyA - A FiXyA rating is appreciated.
If you have more questions or need clarification - let me know!

Jan 21, 2009 | JVC AM FM CD DET FACE CAR STEREO

1 Answer

Carver Sound Problems


your going to need this place to download the remedy's for your system http://www.euras.com/repair_tips_1/CARVER/AV505/AV505_CARVER.htm

if it is not working then there is another serious problem , and it could be the amp IC or the volume IC but tests will need to be done to determine what is causing the failure , but it does sound like amp IC as a suspect since the rear were not even working , did the volume seem different when turning it up or down before the center quit or after the center quit?

Nov 02, 2008 | Audio Players & Recorders

2 Answers

Nad c372 Remote Control


Hello Robert,

If the standby/protection indicator on the amplifier blinks when you specifically press the volume +/- key, it obviously indicates that the unit is receiving the remote's command.
Try the following while pressing the volume key on the remote:
1.- Put your ear as close as possible to the volume control knob and listen for the sound
of a motor spinning, if you hear it, the volume control assembly needs repair. If you
hear no sound, proceed to next step.
2.- Gently rotate the volume control knob on the amplifier unit (it might be stuck and
needs a "little help").

If none of the above applies, the unit needs to be opened and troubleshooted. I've seen many instances where the volume control motor was not properly connected to the board or the assembly was put back incorrectly (specially in units that have been opened to be refurbished). I've heard NAD has a limited warranty for refurbished items. It might be wise for you to check before sending the unit for repair at your expense or trying to tackle the problem yourself. Hope this helps.

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Dec 26, 2007 | NAD C372 Amplifier

1 Answer

Poping in speakers


Same issue with my AVR-589...2-15 minutes after sound is playing (via TV or DVD). I checked all wires and speakers. Even reconfigured to audio only (analog) coming in, same issue. Put my old Denon receiver in and the problem disappears...possible overheating issue with this new unit?

Dec 22, 2007 | Denon AVR-3806 Receiver

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