Power amp fault-any suggestions please?

phatmatt · 21st November 2009, 10:41 AM

Hi all, this is my first post on this forum. I have been given a SoundLab SP6 stereo power amp but it has a fault. One of the channel outputs sounds fine but the other channel is barely audible-any suggestions as to what might be the fault?
Many thanks

jaycee · 21st November 2009, 01:16 PM

Could be anything from a faulty pot to blown output fuse. You'd need to open it up and do some testing.

phatmatt · 21st November 2009, 06:07 PM

Checked fuses by the capacitors and checked for burnt areas on pcb upperside but i am no expert here. Probably a job for a pro. Trouble is electronic engineers in Hereford are as rare as hens teeth. Thanks anyway

nigelwright7557 · 21st November 2009, 10:05 PM

Quote:

Originally Posted by phatmatt

Checked fuses by the capacitors and checked for burnt areas on pcb upperside but i am no expert here. Probably a job for a pro. Trouble is electronic engineers in Hereford are as rare as hens teeth. Thanks anyway

It really needs an audio tech to look at it as they will have the circuit diagrams and have experience of fault finding. Is risking death really worth it for a few quid ?

percival007 · 21st November 2009, 11:04 PM

One on ebay pretty cheap

SoundLAB Professional SP6 2 Channel Power Amplifier on eBay (end time 23-Nov-09 00:54:43 GMT)

Maybe worth a purchase, fix yours with the help of the working one, then have two or re-sell!!

phatmatt · 22nd November 2009, 02:43 PM

Quote:

Originally Posted by nigelwright7557

It really needs an audio tech to look at it as they will have the circuit diagrams and have experience of fault finding. Is risking death really worth it for a few quid ?

Thanks but your definately right-needs a pro who knows what to look for

21st November 2009, 10:41 AM	#1
phatmatt diyAudio Member Join Date: Nov 2009	Power amp fault-any suggestions please? Hi all, this is my first post on this forum. I have been given a SoundLab SP6 stereo power amp but it has a fault. One of the channel outputs sounds fine but the other channel is barely audible-any suggestions as to what might be the fault? Many thanks

21st November 2009, 11:04 PM	#5
percival007 diyAudio Member Join Date: Sep 2007	One on ebay pretty cheap SoundLAB Professional SP6 2 Channel Power Amplifier on eBay (end time 23-Nov-09 00:54:43 GMT) Maybe worth a purchase, fix yours with the help of the working one, then have two or re-sell!! __________________ "An AudioPhool and Proud of it!!"

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21st November 2009, 01:16 PM	#2
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	Could be anything from a faulty pot to blown output fuse. You'd need to open it up and do some testing.

21st November 2009, 06:07 PM	#3
phatmatt diyAudio Member Join Date: Nov 2009	Checked fuses by the capacitors and checked for burnt areas on pcb upperside but i am no expert here. Probably a job for a pro. Trouble is electronic engineers in Hereford are as rare as hens teeth. Thanks anyway

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