Memory upgrade sony HB-f1xd ?

By jfs

Supporter (6)

jfs's picture

16-09-2010, 10:28

Hi everybody,

I'm a new owner of a Msx2 sony HB-F1XD with 64ko.

I want to know how to upgrade memory to 128ko or 256ko.

Thanks for your help!


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By RetroTechie

Paragon (1563)

RetroTechie's picture

16-09-2010, 13:27

Internally I assume? If service manual is correct, HB-F1XD has S1985 engine IC inside, meaning it should be pretty easy to upgrade to 512K (using either 4 pcs. 256Kx4 DRAMs, or a 512Kx8 SRAM). Sadly I don't know exact method for this model... Crying maybe someone else does?

Btw - welcome here, jfs! Running Naked in a Field of Flowers

By jfs

Supporter (6)

jfs's picture

16-09-2010, 13:51

Thank you Retrotechie.

By jfs

Supporter (6)

jfs's picture

17-09-2010, 12:20

Nobody else?

By Dhampird

Hero (589)

Dhampird's picture

17-09-2010, 20:05

Hello, probably this post :

could help to you to have only an overview of how to install an internal memory SRAM Into your sony HB-F1XD, the diagrams is for a HB-F9s, notice especially at the end of the post where you can see the installation diagram of AS6C4008 SRAM (Static SRAM 512K x8).


By LS120

Expert (105)

LS120's picture

12-12-2019, 06:42

did you get your HB-F1XD 512kb upgrade? if so i have the HB-F1 which is meant to be same with out FDD.. where did you connect the X5 to so you get 512kb.. all pics on the sight are dead links..

By daniel683104

Paragon (1260)

daniel683104's picture

22-12-2019, 23:01

look this video it explains how to do it