lp-2020a+ with no sound, no relay click, no nothing

leosep · 29th January 2013, 04:11 AM

Hi all, I got this lepai lp-2020a+ from ebay, at first it worked ok but now no audio comes out from speakers, cant hear that click of the relay, no pop when powered, i opened the amp and tested with speakers bypassing the relay, capacitors, etc, but no nothing. Tested with various power suplies. also with one that i use with a lp-2020 model. The blue light is on. I waited with the amp powered on for more than 1 hour and nothing. Dont know what else to do.

leosep · 29th January 2013, 01:22 PM

anyone?

Bone · 29th January 2013, 09:11 PM

Buy a new one.

Skiivari · 29th January 2013, 09:42 PM

Might be a dead chip.
I had to replace mine after apparently shorting the terminals (maybe)

AndrewT · 30th January 2013, 10:25 AM

Apply the correct DC voltage to the relay coil.
Does it operate?

leosep · 11:09 AM

Yes, nothing...no click from relay

AndrewT · 30th January 2013, 11:57 AM

Short out the IN to OUT pins of the relay.
Does the music pass through to output?

leosep · 30th January 2013, 11:58 AM

Yes i did that too with but no sound.

29th January 2013, 04:11 AM	#1
leosep diyAudio Member Join Date: Jan 2013	lp-2020a+ with no sound, no relay click, no nothing Hi all, I got this lepai lp-2020a+ from ebay, at first it worked ok but now no audio comes out from speakers, cant hear that click of the relay, no pop when powered, i opened the amp and tested with speakers bypassing the relay, capacitors, etc, but no nothing. Tested with various power suplies. also with one that i use with a lp-2020 model. The blue light is on. I waited with the amp powered on for more than 1 hour and nothing. Dont know what else to do.

30th January 2013, 11:07 AM	#6
leosep diyAudio Member Join Date: Jan 2013	Yes, nothing...no click from relay Last edited by leosep; 30th January 2013 at 11:09 AM.

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29th January 2013, 01:22 PM	#2
leosep diyAudio Member Join Date: Jan 2013	anyone?

29th January 2013, 09:11 PM	#3
Bone diyAudio Member Join Date: Jun 2004 Location: Dorset, UK	Buy a new one.

29th January 2013, 09:42 PM	#4
Skiivari diyAudio Member Join Date: Sep 2011	Might be a dead chip. I had to replace mine after apparently shorting the terminals (maybe)

30th January 2013, 10:25 AM	#5
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Apply the correct DC voltage to the relay coil. Does it operate?

30th January 2013, 11:57 AM	#7
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Short out the IN to OUT pins of the relay. Does the music pass through to output?

30th January 2013, 11:58 AM	#8
leosep diyAudio Member Join Date: Jan 2013	Yes i did that too with but no sound.