GB for DC coupled B1 buffer with shunt PSUs - Page 95

Salas · 26th September 2009, 02:32 PM

Quote:

Originally Posted by DaveM

I guess that is another note to add to the assmebly guide is that the pot is mounted to the bottom of the board, not the top.

Are you sure? Crt and the others never mentioned. This is a functional mistake if so and I have to ask him to revise it along the silk screen additions. Grufti uses a pot too. Is it reversed? BillyK connects the LSPD normally? Need input from all proto builders on this.

P.S. Here are the pads and the routing, as well as a typical 27mm Alps blue.

Salas · 26th September 2009, 03:26 PM

And the actual boards. (Doh!)

Ed LaFontaine · 26th September 2009, 04:31 PM

I've just added my interest to this effort on the Gxxgle list.

Have completed a quick read of the thread. What a ride you have been on!

Congratulations for your patience and persistence.

Looking forward to $ending the money.

kp93300 · 26th September 2009, 04:57 PM

I just place my name in the WIKI for the group buy.
Could not find the above info
Thanks for the great work
kp93300

Tea-Bag · 26th September 2009, 05:44 PM

Quote:

Originally Posted by Salas

Are you sure? Crt and the others never mentioned. This is a functional mistake if so and I have to ask him to revise it along the silk screen additions. Grufti uses a pot too. Is it reversed? BillyK connects the LSPD normally? Need input from all proto builders on this.

P.S. Here are the pads and the routing, as well as a typical 27mm Alps blue.

Salas,
I may not be thinking this through, but I assume that the pot just may face the other direction. A 180 degree shift on the board. Doesn't that solve the problem?

Salas · 26th September 2009, 05:50 PM

Yes it does if he thought about an extention rod, since that ties with the front face DCB1 blah blah also. Our front is his back?

Don't know what he had in mind though. He just said, ''tested with a pot, no problemo''.

grufti · 26th September 2009, 05:57 PM

I wasn't sure what was intended with the pot and simply connected it the way it seemed to make sense from looking at the traces on the pcb.

Salas · 26th September 2009, 05:58 PM

OK we found a logical explanation. The board goes near the back for close wiring to IN/OUT and the pot looks with its shaft towards the board's inside. So when the front of the box faces it, the legends read correct. That is why he left an open corridor. OK, Indiana, errr, Tea - Bag, deciphered that.

Tell me now why no chatter on Omron 12V too?

Salas · 26th September 2009, 06:12 PM

Quote:

Originally Posted by Tea-Bag

Salas,
I may not be thinking this through, but I assume that the pot just may face the other direction. A 180 degree shift on the board. Doesn't that solve the problem?

Just got email:

halo

-about Pot. i have checked. compare to Fred design
nothing wrong (just rotate 180 degree my version, and you get a same pinout) ???
-for LED position, i have fix it. i hope you like it (see attachment)
just tell me if something wrong.

Regards
La Ode

Salas · 26th September 2009, 06:13 PM

Forwarding to Tea-Bag

26th September 2009, 04:31 PM	#943
Ed LaFontaine ...truth seeker... diyAudio Member Join Date: Feb 2004 Location: where the Appalachians rise from the Blue Grass	I've just added my interest to this effort on the Gxxgle list. Have completed a quick read of the thread. What a ride you have been on! Congratulations for your patience and persistence. Looking forward to $ending the money. __________________ ...call me Ed...Special Ed... EnABL kit http://www.diyaudio.com/forums/swap-meet/119852-enabl-kit.html DCB1 parts http://www.diyaudio.com/forums/swap-...ml#post2361098

26th September 2009, 04:57 PM	#944
kp93300 diyAudio Member Join Date: Mar 2007	how to pay , when to pay , how much to pay I just place my name in the WIKI for the group buy. Could not find the above info Thanks for the great work kp93300

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26th September 2009, 05:50 PM	#946
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Yes it does if he thought about an extention rod, since that ties with the front face DCB1 blah blah also. Our front is his back? Don't know what he had in mind though. He just said, ''tested with a pot, no problemo''.

26th September 2009, 05:57 PM	#947
grufti wombat diyAudio Member Join Date: Jun 2004 Location: Hillside	I wasn't sure what was intended with the pot and simply connected it the way it seemed to make sense from looking at the traces on the pcb.

26th September 2009, 06:13 PM	#950
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Forwarding to Tea-Bag