H4G - Mongrel SMT Edition

[troed]

@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

[exxos]

Besides exxos having a bunch in a bag, what does the supply look like for those PLCC MFPs?

Currently no problems in obtaining them.

[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

After:

Screenshot 2020-06-02 at 08.32.40.png

[exxos]

Only the before image isn't exactly the right one ;)

[Icky]

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

We had a suggestion from @DoG

[/quote]

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

[Icky]

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.

[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

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

[PhilC]

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

Where can one aquire one of these S2 boards?

[exxos]

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

I requested bomb Jack and Frankie goes to Hollywood ;)

[DoG]

... 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?