F4/FMPAC Light Combo Board project

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By storhemulen

Supporter (8)

storhemulen's picture

28-04-2016, 13:14

Also interested in a PCB. Sending an e-mail to Alexey.

By OX

Resident (33)

OX's picture

01-05-2016, 02:51

Excuse the newb question but what is "F4"? I am looking for an FM sound solution for my Sony HB-F9P and wonder if I need this.

By Grauw

Ascended (8516)

Grauw's picture

01-05-2016, 02:57

Talking strictly about “need”, all you need is an FM-PAC cartridge.

If you want to build it in, then this board is an option. The F4 register is meant for MSX2+ upgrades, but its presence will do no harm if you just want it for the FM.

By AlesteDX

Expert (65)

AlesteDX's picture

04-05-2016, 22:59

Ok, I got mine this morning. Two beautiful boards for mount on my F700.

Regards.

By Alexey

Guardian (2457)

Alexey's picture

05-05-2016, 19:48

Alexey wrote:

Parts list for the latest board:

- resistor 22 kOhm 0805 - 4
- resistor 2.2 kOhm 0805 - 5
- resistor 174 kOhm 0805 - 1
- resistor 100 Ohm 0805 - 2
- resistor 68 Ohm 0805 - 2
- resistor 1 kOhm 0805 - 1 (for port F4)
- resistor 4.7 kOhm 0805 - 1 (for port F4)
- resistor 10 kOhm 0805 - 1
- capacitor tantal/electrolythic 10 uF 16v - 1 (form factor A/B)
- capacitor tantal/electrolythic 1 uF 10v - 4 (form factor A/B)
- capacitor tantal/electrolythic 2.2 uF 10v - 2 (form factor A/B)
- capacitor tantal/electrolythic 47 uF 16v - 2 (form factor C/D)
- capacitor ceramic 100 nF 0805 - 3
- capacitor ceramic 300-500 pF 0805 - 2 (optional)
- diode 1N4148 SMD - 1 (for port F4)
- microchip 74LS30 SOP - 1
- microchip 74LS04 SOP - 1
- microchip 74LS30 SOP - 1 (for port F4)
- microchip 74LS125 SOP - 1 (for port F4)
- microchip 74LS74 SOP - 1 (for port F4)
- microchip 74LS02 SOP - 1 (for port F4)
- microchip YM2413 DIP18 - 1
- microchip LM4558 DIP8 or similar - 1
- microchip EPROM 27с128 or 27с256 or 27с512 PLCC32 - 1
- microchip CPU Z80 (Z84) DIP40 - 1
- sockets DIP40, DIP8, DIP18, PLCC32 - 1 each
- voltage regulator 78L05 - 2
- jumper pins 20 pin, straight, single row, 2.5mm - 2
- jumper pins (right angle) 3 pin, single row, 2.5mm - 2
- jumper pins (right angle) 2 pin, single row, 2.5mm - 2
- jumper, 2.5mm - 1 (optional)

Possible to use 74HC series chips instead of 74LS. When using 27c512, the OE signal must be connected to RD instead of CS1! When using 27c256 the jumper selects first or second 16kb part of ROM image.

One component is missing in the list, sorry:

- capacitor ceramic 22 pF 0805 - 2

By OX

Resident (33)

OX's picture

06-05-2016, 23:16

What is the price for a completely populated board and will it install ok on a Sony HB-F9P?

By Alexey

Guardian (2457)

Alexey's picture

06-05-2016, 23:22

Unfortunately my last shipment of YM2413 was completely broken. So I don't have the possibility to make new boards for at least a month. The board should work in any MSX computer, but space-wise I can't guarantee anything. On Yamaha MSXs the board is installed into a socket where Z80 used to be (and Z80 is installed on top of the board). On other machines the location of Z80 is different, so the installation may require a lot of soldering (40 wires + connections). I've never modded HB-F9P, so I can't really tell whether the board will fit nicely or a lot of wires will be required.

By Pablibiris

Paragon (1768)

Pablibiris's picture

07-05-2016, 12:59

Hi Alexey!
The component list is the same for my board? (1.3)
Thanks!

By Alexey

Guardian (2457)

Alexey's picture

07-05-2016, 23:00

Pablibiris wrote:

Hi Alexey!
The component list is the same for my board? (1.3)
Thanks!

Yes, this list is for version 1.3.

By Bastion Rebel

Resident (56)

Bastion Rebel's picture

08-05-2016, 08:32

Hello
a small error on your list
the resistance of 174k is not good
to be read and not 170k 174k
174 is the link to the resistance SMD 170000 ohms, so 174 !!

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