H4G - Mongrel SMT Edition

Related information and WIP etc
troed
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Re: H4G - Mongrel SMT Edition

Post by troed »

Icky wrote: Sun May 31, 2020 7:31 pm @exxos and I have been discussing removing the MFP DIL and leaving just the PLCC socket in to make things easier.
Besides exxos having a bunch in a bag, what does the supply look like for those PLCC MFPs?

/Troed
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exxos
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Re: H4G - Mongrel SMT Edition

Post by exxos »

troed wrote: Sun May 31, 2020 9:39 pm Besides exxos having a bunch in a bag, what does the supply look like for those PLCC MFPs?
Currently no problems in obtaining them.
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.
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Icky
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Re: H4G - Mongrel SMT Edition

Post by Icky »

:logo: - PLCC MFP from Socket to SMT

In the true spirit of SMT and as the chips a readily available we have replaced the PLCC MFP as SMT instead of a socket.

Before:

Screenshot 2020-05-31 at 19.23.10.png
Screenshot 2020-05-31 at 19.23.10.png (449.94 KiB) Viewed 5463 times

After:

Screenshot 2020-06-02 at 08.32.40.png
Screenshot 2020-06-02 at 08.32.40.png (632.28 KiB) Viewed 5463 times
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exxos
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Re: H4G - Mongrel SMT Edition

Post by exxos »

Only the before image isn't exactly the right one ;)
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.
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Icky
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Re: H4G - Mongrel SMT Edition

Post by Icky »

:logo: - Keyboard Connector RX Pull-Down / Pull-Up Jumper

We had a suggestion from @DoG

[/quote]
DoG wrote: Fri May 29, 2020 10:16 am Just a suggestion...

Can we do a pull up instead of a pull down on Rx on the keyboard connector so if you forget to plug it in, you don't have to hear the clicking? Drives me crazy every time I forget to connect the keyboard.

In H4 schematics it is R35 (10K ohm) tied to GND.
@exxos suggested we could do a solder jumper so here is our first user suggested improvement on the H4G.

Screenshot 2020-06-02 at 08.50.44.png
Screenshot 2020-06-02 at 08.50.44.png (370.06 KiB) Viewed 5451 times
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Re: H4G - Mongrel SMT Edition

Post by Icky »

exxos wrote: Tue Jun 02, 2020 8:46 am Only the before image isn't exactly the right one ;)
Well a sort of in-between image ;) Was to lazy to go back and find the H4F version image.
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Re: H4G - Mongrel SMT Edition

Post by Icky »

:logo: - New Feature - DreamBlaster S2 MIDI Synth Header

We have been doing some tests and we are able to provide a DreamBlaster S2 MIDI Synth board header on the H4G so that you can play MIDI straight out to your monitor. There are 10R resistors so you can tap into the audio L/R lines and break them from the monitor sound line just like the YM 10Rs.

Screenshot 2020-06-02 at 13.43.01.png
Screenshot 2020-06-02 at 13.43.01.png (684.55 KiB) Viewed 5429 times

Video of testing the S2 Synth card on the H4F. It also works with games with MIDI too.

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PhilC
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Re: H4G - Mongrel SMT Edition

Post by PhilC »

Idea = brilliant , choice of music = not so good.

Where can one aquire one of these S2 boards?
If it ain't broke, test it to Destruction.
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exxos
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Re: H4G - Mongrel SMT Edition

Post by exxos »

PhilC wrote: Tue Jun 02, 2020 2:26 pm Idea = brilliant , choice of music = not so good.
I requested bomb Jack and Frankie goes to Hollywood ;)
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.
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DoG
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Re: H4G - Mongrel SMT Edition

Post by DoG »

Icky wrote: Tue Jun 02, 2020 2:20 pm... DreamBlaster S2 MIDI Synth Header.

We have been doing some tests and we are able to provide a DreamBlaster S2 MIDI Synth board header...
Great. Will the X2 also work/fit? Maybe move down the MFP a bit and xtal might need moving?
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