Piggyback RAM - TMM41464AP??

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By Colemu

Hero (535)

Colemu's picture

23-09-2012, 04:43

Well I put it back to how it was, tested all connections.

No more failures Big smile

My luck had to run out sooner or later eh Tongue

Leaving well alone now, don't fix what ain't broken!

By Colemu

Hero (535)

Colemu's picture

23-09-2012, 14:02

I'll see if I can get round to posting a video of the finished MSX2+(ish) computer in action.

Still working ok (fingers crossed). Passing memory tests every time....

Thanks again RT Big smile

BTW: We both thought you'd all appreciate a bit of drama at the end of the story...... Wink

By Colemu

Hero (535)

Colemu's picture

23-09-2012, 15:22

Although all tests pass, I am having trouble with MSX Music on my Phillips Music Module...

Games that used to play music are now silent:

FireHawk (in MSX Music mode)

MSX Audio seems fine..

Any ideas?

BTW: my Philips MM is equiped with Audio Bios v1.3

Update: Xevious now works, played with different cartridge slot! LOL!
Can't get Firehawk to work in MSX Audio mode though. It used to..

By Colemu

Hero (535)

Colemu's picture

23-09-2012, 17:08

Must be to do with the Module, the computer is fine.

Here is a short video:


By jltursan

Prophet (2619)

jltursan's picture

24-09-2012, 13:23

A nice work indeed, is there already a quick step guide summarizing the process?

By Colemu

Hero (535)

Colemu's picture

24-09-2012, 19:58

No, not at the moment.

If there was demand, I could put one together....

By japanretroCT

Master (131)

japanretroCT's picture

28-06-2019, 22:30

Hi colemu i have a HB-F1 i would want to expand memory...Do you have some schemathic of what you done to your computer?
Best regards.

By alexito

Paladin (752)

alexito's picture

30-06-2019, 20:46

Hi Colemu, could please re-post the old pictures from 2012 because the link is broke , very interesting mod I would like to try some day.


By LS120

Expert (105)

LS120's picture

28-07-2019, 06:40

i have a HB F1 im looking at doing the 512kb mod also looking at wanting to remove the Jap software is there a Rom immage to down load to replace it with? and what eeprom's are best/easy to get.


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