Dumping/reverse engineering MSX models thread

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Por sdsnatcher73

Prophet (2363)

Imagen del sdsnatcher73

13-12-2020, 19:37

Okay the ROM is there, maybe an issue with the ROM itself or the surrounding logic. Also the cap next to the VDP is leaking...

Por sdsnatcher73

Prophet (2363)

Imagen del sdsnatcher73

13-12-2020, 19:42

Guess I will have to take it to Omega for repairs.

Por Gradius2

Hero (626)

Imagen del Gradius2

19-12-2020, 23:51

sdsnatcher73 wrote:

I purchased a Japanese HC-7, I will dump the ROMs as soon as it arrives.

Sent an e-mail for ya.

Por theNestruo

Champion (323)

Imagen del theNestruo

29-12-2020, 20:05

I have an Spanish HC-7E. I can confirm the BIOS is the same as the HC-7GB BIOS that can be found online:

C: ... >fc /b hc7ebios.rom hc7gbbios.rom
Comparing files hc7ebios.rom and HC7GBBIOS.ROM
FC: no differences encountered

Por mars2000you

Enlighted (6019)

Imagen del mars2000you

29-12-2020, 20:47

Thanks! Wiki updated Smile

Por msxholder

Champion (393)

Imagen del msxholder

29-12-2020, 22:27

The capacitor is NOT leaking they glued an isolator on top, the "HBI interface is resting on it".
Your Hb T600 has some modifications the second drive connector is added.
The ram is expanded to 256 kB
It lacks the correction board.

Por Manuel

Ascended (18256)

Imagen del Manuel

30-12-2020, 00:31

What is the 'correction board'?

Por Meits

Scribe (6463)

Imagen del Meits

30-12-2020, 00:46

old glue on old caps can look suspicious Smile

Por sdsnatcher73

Prophet (2363)

Imagen del sdsnatcher73

23-01-2021, 06:12

I have this HBP-F1C (not yet unpacked). It comes with the disk so I can dump it, the Wiki says a ROM dump is also needed. That would require the ROM to be removed and dumped from a programming tool, right? Or can it be read via the MSX?

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