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Alienkid H5 C1 build

Share your building progress here!
tomster
Posts: 36
Joined: 17 Apr 2020 08:34

Re: Alienkid H5 C1 build

Post by tomster »

A bit late to the game but here's some good advice on desoldering through hole ICs:



I removed the cartridge port of my donor board last week, took some time but the result was pretty OK with a desoldering station and hot air gun. Remember that the hot air gun might not heat up unless removed from the station.

I'll start my own H5C1 thread once I have some more parts and spare time.

Cheers
Tom
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alienkidmj12
Posts: 284
Joined: 22 Aug 2017 13:39

Re: Alienkid H5 C1 build

Post by alienkidmj12 »

Confirmed that trudie is indeed a tos decoder i won't need any of this unless i need to accelerate something, which i do plan on in the future.
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exxos
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Posts: 28211
Joined: 16 Aug 2017 23:19
Location: UK

Re: Alienkid H5 C1 build

Post by exxos »

alienkidmj12 wrote: 09 Aug 2021 15:20 Confirmed that trudie is indeed a tos decoder
https://www.exxosforum.co.uk/forum/viewt ... 730#p54885
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alienkidmj12
Posts: 284
Joined: 22 Aug 2017 13:39

Re: Alienkid H5 C1 build

Post by alienkidmj12 »

exxos wrote: 09 Aug 2021 15:26
alienkidmj12 wrote: 09 Aug 2021 15:20 Confirmed that trudie is indeed a tos decoder
https://www.exxosforum.co.uk/forum/viewt ... 730#p54885
where does the brown wire goto ?
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Icky
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Re: Alienkid H5 C1 build

Post by Icky »

@alienkidmj12 - the brown wire in the pictures referenced is the HDINT line which goes to the ACSI pin 10. The best place to pick it up from is one of the ACSI headers.

See photo:

IMG_6050 (2).png
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alienkidmj12
Posts: 284
Joined: 22 Aug 2017 13:39

Re: Alienkid H5 C1 build

Post by alienkidmj12 »

is this what i need for the time chip ?

https://www.ebay.co.uk/itm/184357068400 ... SwiYJfBau2
https://www.ebay.co.uk/itm/274540209152 ... SwOTZfjVhX

thanks

dave
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DoG
Posts: 1291
Joined: 07 Apr 2018 12:26

Re: Alienkid H5 C1 build

Post by DoG »

Yes

You will also need:
32,768KHz crystal (2x6mm or something similar)
smt coin cell holder CR1220
CR1220 battery
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alienkidmj12
Posts: 284
Joined: 22 Aug 2017 13:39

Re: Alienkid H5 C1 build

Post by alienkidmj12 »

DoG wrote: 12 Aug 2021 23:49
Yes

You will also need:
32,768KHz crystal (2x6mm or something similar)
smt coin cell holder CR1220
CR1220 battery
Thanks
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alienkidmj12
Posts: 284
Joined: 22 Aug 2017 13:39

Re: Alienkid H5 C1 build

Post by alienkidmj12 »

Current state

DSC_1777.JPG
DSC_1778.JPG

Cart port and ext drive connector fitted. Some extra pins fitted for dma.

Still awaiting midi ports, mc68b50 ic, mfp 68901 ic.

Dave
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DoG
Posts: 1291
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Re: Alienkid H5 C1 build

Post by DoG »

Don't forget that you need to bridge the two middle holes underneath the right 3.3V BUS socket. The socket is covering it at the moment so I suggest to do it from the bottom side with a small wire or solder blob.

Just in case you forgot before you power it up for the first time. ;)
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