Newcomer arriving soon...

[HigashiJun]

BTW, can somebody more proficient than me in Atari TT confirm that chips U8, U15 and U20 are also concerned when bit 15 is faulty ?

Thanks.

[HigashiJun]

Since I have finished my work earlier today, I had time to look into the faulty bit issue on my ST-RAM board.

The culprit was pin 25 (I/04, related to bit 15) of U8 ram chip.

And here's the result after a quick re-flow:

1.JPG (429.7 KiB) Viewed 41 times

2.JPG (460.73 KiB) Viewed 41 times

3.JPG (581.08 KiB) Viewed 41 times

I have now a fully upgraded ATARI TT030 (bar the TRAMs...).

[exxos]

[stephen_usher]

[JezC]

Great result!

[HigashiJun]

This mod is definitely worth it, for next to nothing you can achieve a great upgrade for the TT.

[JezC]

This mod is definitely worth it, for next to nothing you can achieve a great upgrade for the TT.

I'll have to look into it - but first I need to fit English TOS 3.06 and replace the failing internal SCSI HDD.

I might also need to invest in better SMT soldering facilities!

[HigashiJun]

I'll have to look into it - but first I need to fit English TOS 3.06 and replace the failing internal SCSI HDD.

I might also need to invest in better SMT soldering facilities!

Let us know how it goes.

[rubber_jonnie]

Nice work