Friday, November 20, 2009

15pf and 1uf Capacitors added (C32, C33, C34, C41, C42)


1uf Capacitors C41 and C42 (top)


15pf Capacitors C32, C33 and 1uf Capacitor C34 (bottom)

C32, C33, C34, C41, C42

Minor reworking...

Per Art and Alex, I removed R35 with a hot air rework gun, and removed R62 as well which I had wedged in a 1206 and now have the 805 2.2k R35 resistor in it's place.  Hot Air rework stations aren't necessary to remove chips as a solder wick and even heating will often do the job, but the rework stations do spoil you and make life so much easier.  Looks like most of the kits are short these items:

1x 0.1uF - 399-1169-1-ND
1x 499ohm - P499CCT-ND

In case you missed the messages, Art will be shipping those out to the beta kit buyers.

Thursday, November 19, 2009

Labels added to posts

Since I may start posting other projects to this blog, I added labels to the posts to make things easier for people to find.  Since either my friends, family or the Motherboard project people may be viewing, and not care about all the other stuff going on, I figured it would be easier this way.  For all the Motherboard related posts, I've added the label MoBo.  You can view only the Motherboard posts by clicking the link below and you won't see anything else you may not care about: http://kb1mts.blogspot.com/search/label/MoBo  

If you look at anything else I may post, feel free and try not to get too bored :-)

Wednesday, November 18, 2009

Off until Friday...

That's all for today folks, next update won't be until probably Friday night.  I can tell I'm getting tired as the pictures are getting fuzzier as I go along, and I don't think it's my eyes ;-)

2.2k Resistors added (R23, R24, R29, R35, R36, R41, R42, R49, R50, R62)

Please note I was missing R62, so I replaced it with a 1206 for now (I already created a sheet in Excel to track the missing orphans :-) 

UPDATE: According to Alex and Art, R35 is not needed for people using a SoftRock with the motherboard. "R35/R36 will be omitted or installed, see assembly notes for details."
From Mike Collins:
"R35 and R36 are needed for the I2C pullups. Something 1K to 100K may work fine to get running.  Think the goal was to have someone start a assembly notes document.  Alex has some prelim stuff in the files section. I had some assembly note in a previous message on MOBO up and running.... Not sure why R35 and R36 would be mentioned other needing to be there."

2.2k Resistors (top)


2.2k Resistors (bottom)

R23, R24, R29, R35, R36, R41, R42, R49, R50, R62

0k Resistors added (R6, R10, R12, R30, R40, R47, R48)

NOTE: All zero ohm resistors to be installed. Omit R10, R12 if you are not using the POSWR bridge kit. Omit R40 if you are using the Preamp/Attenuator Kit. Omit R47, R48 if you are using an external uController instead of the onboard AT90USB162.


0k Resistors (top)


0k Resistors (bottom)

R6, R10, R12, R30, R40, R47, R48

10k Resistors added (R2, R3, R5, R7, R9, R18, R19, R20, R21, R22, R54)



10k Resistor (top)


10k Resistor (bottom)

R2, R3, R5, R7, R9, R18, R19, R20, R21, R22, R54

.1uf Capacitors added (C1, C2, C3, C4, C5, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C21, C27, C30, C35, C43, C44, C47, C48, C49, C50)

Well after playing Where's Waldo for an hour, I got all the .1uf SMD caps added.  I was short one, so I used a 1206 that I had (I can always remove it later with a hot air rework gun.) 

UPDATED 11/20: I noticed due to a bad spot in silk screen, I had put C35 into C36 thinking it was C35 so the image has been updated. C36 on the bottom should not be populated. Sorry for any inconvienience.


.1uf Caps placed (top)



.1uf Caps placed (bottom)


C1, C2, C3, C4, C5, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C21, C27, C30, C35, C43, C44, C47, C48, C49, C50

Tuesday, November 17, 2009

Motherboard 4.3.4 Beta Kit Arrived!

Just got my Motherboard 4.3.4 beta kit for the SoftRock 6.3 SDR. I can't wait to start assembling it! I'll post updates here as I go thru the project.



Stay tuned for the unboxing!