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Kodak80 H4F build
Posted: 11 May 2025 04:54
by kodak80
Not sure how quickly this will happen, if at all... but 5x H4F PCBs arrived today. I don't have components. :roll:
:logo: :cheer: :logo: :cheer: :logo:
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Re: Kodak80 H4F build
Posted: 11 May 2025 09:03
by PhilC
I see lots and lots of soldering in your future :lol:
Re: Kodak80 H4F build
Posted: 12 May 2025 00:57
by atari030
I'll put the kettle on. Look forward to seeing this one kick off.
Re: Kodak80 H4F build
Posted: 25 May 2025 06:31
by kodak80
Spent time building an H4F board up as I had most of the components. Still need some components to get it to a power up state.
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Re: Kodak80 H4F build
Posted: 25 May 2025 11:34
by exxos
:bravo:
Re: Kodak80 H4F build
Posted: 26 May 2025 21:45
by kodak80
The remaining components have arrived now. Will try and get them onto the board this week.
Re: Kodak80 H4F build
Posted: 27 May 2025 21:31
by kodak80
Board now built and powered on. No magic smoke :)
Screen output flickers and black screen showing... :(
If I change the video adapter (plugged in) between mono and colour output, I see the desktop green colour as a thin horizontal line when switching from colour to mono so it looks like there is something there just not showing.
Will need to check things in more detail on the weekend if I get time.
Re: Kodak80 H4F build
Posted: 27 May 2025 21:39
by exxos
missing jumpers on the DAC area ?
Re: Kodak80 H4F build
Posted: 29 May 2025 13:24
by kodak80
exxos wrote: 27 May 2025 21:39
missing jumpers on the DAC area ?
Jumpers were installed before testing. Here is the photo of where they are.
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I need to check for shorts on the smd chips.
Re: Kodak80 H4F build
Posted: 29 May 2025 13:43
by exxos
That's supposed to be a 10nF cap ?
IMG_1026.jpeg