Smoke coming out from my Aleph.... Please HELP! - Page 3

lscangus · 6th July 2006, 12:00 PM

I tried that already. changing R51 and R1 ro 100k Ohm, and i got a voltage of about 13 volt across it...

Angus

EUVL · 6th July 2006, 03:27 PM

Angus,

You should change R3/R53 from 10k to 100k, and measure R1/R51 (which were 390 ohm, and you should keep them as that) to 4V while trimming VR101.

Patrick

lscangus · 6th July 2006, 04:14 PM

oh... i did the wrong thing.. will i damage the components?

i will try again tonight

Angus

Keith Marrison · 15th July 2006, 04:26 PM

Patrick,you have advised Angus to change R3/R53 to 100k,,do these need changing back to 10k after checking the front end and reconnecting the power mosfets.
Thanks,Keith

Babowana · 15th July 2006, 05:09 PM

Quote:

Originally posted by Keith Marrison

need changing back to 10k

Yes if the trouble shooting is successful with R3/R53 of the temporary 100K.

Keith Marrison · 18th July 2006, 07:42 PM

Thanks Bobowana.
Keith

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Another Aleph-X coming up!	Edwin Dorre	Pass Labs	126	21st August 2008 01:50 PM
T-amp up in smoke	jwb009	Class D	21	4th April 2006 06:50 AM
bringing up aleph 3, no smoke, but no sound	cowanrg	Pass Labs	24	20th May 2004 11:29 PM
New Aleph 5 coming up!!	bbakota2000	Pass Labs	20	18th April 2004 02:05 PM
Up in smoke...	PhaseShift	Solid State	2	3rd September 2002 05:03 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

6th July 2006, 12:00 PM	#21
lscangus diyAudio Member Join Date: Oct 2005	I tried that already. changing R51 and R1 ro 100k Ohm, and i got a voltage of about 13 volt across it... Angus

6th July 2006, 03:27 PM	#22
EUVL diyAudio Member Join Date: Oct 2003	Angus, You should change R3/R53 from 10k to 100k, and measure R1/R51 (which were 390 ohm, and you should keep them as that) to 4V while trimming VR101. Patrick

6th July 2006, 04:14 PM	#23
lscangus diyAudio Member Join Date: Oct 2005	oh... i did the wrong thing.. will i damage the components? i will try again tonight Angus

15th July 2006, 04:26 PM	#24
Keith Marrison diyAudio Member Join Date: Jul 2004 Location: Gainsborough; lincolnshire	Patrick,you have advised Angus to change R3/R53 to 100k,,do these need changing back to 10k after checking the front end and reconnecting the power mosfets. Thanks,Keith

18th July 2006, 07:42 PM	#26
Keith Marrison diyAudio Member Join Date: Jul 2004 Location: Gainsborough; lincolnshire	Thanks Bobowana. Keith

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)