PCB Build - Progress - Post your Pics here :-)

All information relating to the Alpha plus all the WIP threads etc.
User avatar
Icky
Site Admin
Site Admin
Posts: 4014
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: PCB Build - Progress - Post your Pics here :-)

Post by Icky »

Atarian Computing wrote: Sat Sep 08, 2018 3:07 pm Had a productive day. Missing the floppy cable and a 7402 and the Blitter (oh and the reset switch). Also need a RAM card. Other than that it's pretty much done. I haven't inspected my soldering. I can already see problems. I had soooo much flux goo that I had to clean it with IPA. So I'll go through everything carefully a couple of times. That was so much fun!
:coolpics:

Great work - my day set aside for soldering has not happened yet. Life gets in the way.
User avatar
exxos
Site Admin
Site Admin
Posts: 24265
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos »

:lolbig: :bravo:

Those big caps should probably be lay flat :)

I wouldn't bother with the blitter for now anyway :)
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Atarian Computing
Posts: 452
Joined: Tue Aug 22, 2017 4:27 am

Re: PCB Build - Progress - Post your Pics here :-)

Post by Atarian Computing »

exxos wrote: Sat Sep 08, 2018 4:12 pm :lolbig: :bravo:

Those big caps should probably be lay flat :)

I wouldn't bother with the blitter for now anyway :)
Oh, right. Didn't think of laying them down. Oh well.

7402 installed.

I found this. Will it work standalone and what do the jumpers do?
IMG_0288.jpg
IMG_0288.jpg (2.51 MiB) Viewed 5495 times
User avatar
exxos
Site Admin
Site Admin
Posts: 24265
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos »

Atarian Computing wrote: Sat Sep 08, 2018 6:45 pm I found this. Will it work standalone and what do the jumpers do?
I never used that type of stuff, probably best idea is to install it on a working stfm and play about with it..
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
Icky
Site Admin
Site Admin
Posts: 4014
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: PCB Build - Progress - Post your Pics here :-)

Post by Icky »

Almost there. Need to go round and do a bit of tidying up on my soldering (its been pretty rubbish to start with but getting better after hours of it) and check for any shorts.

Now waiting on a few more components to help with the build such as SIL sockets for the resistors and the long header pins to fit the Exxos Falcon Ram board.

Have been keenly watching all you others build yours and adapting according to suggestions etc.
  • MIDI Socket mod (see second pic) - cut the front pins off and soldered some pins through and soldered to the ground plate
  • Reset switch onto a header to fit the holes
  • Laying flat the large capacitors

IMG_3025.png
IMG_3025.png (2.38 MiB) Viewed 5437 times
IMG_3027.png
IMG_3027.png (490.75 KiB) Viewed 5437 times
User avatar
Icky
Site Admin
Site Admin
Posts: 4014
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: PCB Build - Progress - Post your Pics here :-)

Post by Icky »

I wonder who is going to breathe life into one of these boards first.

030-gene-wilder.jpg
030-gene-wilder.jpg (60.18 KiB) Viewed 5367 times

Atarian Computing and I have been discussing about how would we go about first turn on. Its that first flick of the switch that is the nervous moment.

Final checking of boards is key I was just looking over Atarian Computing's pictures and I noticed I put my YM2149F in the wrong way round. :oops:

Check, check and check again.

Unfortunately I am not going to be able to get back onto my board until Sunday.
User avatar
exxos
Site Admin
Site Admin
Posts: 24265
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos »

Icky wrote: Tue Sep 11, 2018 6:27 pm I wonder who is going to breathe life into one of these boards first.
Atarian Computing and I have been discussing about how would we go about first turn on. Its that first flick of the switch that is the nervous moment.
50:50 for a totally black or white screen :P

Plus 50% chance of some chip getting hot for no reason, and 50% chance someones bad soldering is to blame :P
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
PhilC
Moderator
Moderator
Posts: 6072
Joined: Fri Mar 23, 2018 8:22 pm

Re: PCB Build - Progress - Post your Pics here :-)

Post by PhilC »

Ah, don't worry about your sound chip, I soldered the rom socket the wrong way round :shock: Fortunately, the chip still fits in it

It won't be me first unfortunately, still got lots of small components to solder up.

Good luck guys, really looking forward to seeing what happens.
If it ain't broke, test it to Destruction.
Realloy
Posts: 8
Joined: Mon Jul 30, 2018 8:18 pm
Location: Sweden

Re: PCB Build - Progress - Post your Pics here :-)

Post by Realloy »

Almost done with mine some connectors and the develish resistors in RGB and some touch up and overlook of all the solderings
Upload.png
Upload.png (697.09 KiB) Viewed 5349 times
Upload2.png
Upload2.png (640.39 KiB) Viewed 5349 times
I solved the keyboard connector
;)
User avatar
exxos
Site Admin
Site Admin
Posts: 24265
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos »

Realloy wrote: Tue Sep 11, 2018 9:03 pm I solved the keyboard connector
:bravo:

Seems you guys are rocketing along with it all!

I'm going to send my board off to be assembled, see if I can catch up a bit as there are a few getting close to power up now...
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Post Reply

Return to “ALPHA DEVELOPMENT INFO”