Squeezebox 3 modding - Page 2

Clipper · 8th June 2006, 09:10 AM

http://forums.slimdevices.com/showth...&highlight=14v

See Post #3

The 14V line powers the DAC and OpAmp and is derived from a switcher. Red Wine Audio hack into the 14V line and use an external battery feed. I think Bolder re-route things to get a cleaner feed to the DAC internally. Maybe from the headphone amp 3.3v?

If you remove the OpAmp you won't need to worry about it's supply.

waltona · 8th June 2006, 09:18 AM

From what I can understand the 3.3V supply is derived from the external switcher and is then regulated for the headphone out.

The 14V is from an internal switcher, which is then multiplied to feed to display, then reg'd down to power DAC
the final regs are linear.

How about multiplying the nice regulated external linear 5v supply and using that for the DAC?

Al

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
Wtb: Squeezebox 2	rhysh	Swap Meet	5	19th February 2009 02:29 PM
FS: Squeezebox 2 (wired)	loddie	Swap Meet	0	8th January 2008 03:22 AM
Squeezebox 3 UK (EU?)	jimbo1968	Group Buys	4	4th November 2006 10:05 AM
Squeezebox 3	I_Forgot	Digital Source	0	3rd January 2006 03:16 PM
Modding Slimdevices Squeezebox	Adrian	Digital Source	1	12th October 2004 09:44 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

8th June 2006, 09:10 AM	#11
Clipper diyAudio Member Join Date: Jun 2006	http://forums.slimdevices.com/showth...&highlight=14v See Post #3 The 14V line powers the DAC and OpAmp and is derived from a switcher. Red Wine Audio hack into the 14V line and use an external battery feed. I think Bolder re-route things to get a cleaner feed to the DAC internally. Maybe from the headphone amp 3.3v? If you remove the OpAmp you won't need to worry about it's supply.

8th June 2006, 09:18 AM	#12
waltona diyAudio Member Join Date: Apr 2005 Location: Up North	From what I can understand the 3.3V supply is derived from the external switcher and is then regulated for the headphone out. The 14V is from an internal switcher, which is then multiplied to feed to display, then reg'd down to power DAC the final regs are linear. How about multiplying the nice regulated external linear 5v supply and using that for the DAC? Al

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