The big 4700 one? Could the ASCI socket be bad?
Also a little history of the machine, is that it was used constantly for many years by a DJ/midi music maker.
The big 4700 one? Could the ASCI socket be bad?
I'm not going to look at the ASCI till the floppy issue is solved, by capacitor I meant c68 you were talking about.
Alright, thank you. Sorry for all the questions. I'm still quite new to Atari side of things especially the diagnosing and way things work. I'm more Commodore 64.
One small anomaly I just noticed is this: On the STFM KIT DUAL TOS kit that is installed (with ube chip) The ube has not been connected to pin 16 of CPU, the bank select jumper is on bk2, but TS is bridged! Which according to your instructions, could mean the ube chip is damaged. I know this probably has nothing to do with the floppy. But I might unsolder the TS blob, and test the other TOS bank.
TS jumper is used to connect the UBE chip to the ROM A17 (bank select) so you remove the jumper link connector.. if both are fitted, then your shorting out the UBE output with the jumper link connector... I don't know how UBE chip will react without reset connected either.. you could be randomly switching between TOS versions causing in effect ROM corruption.Steve wrote: ↑Mon Sep 07, 2020 2:39 pm One small anomaly I just noticed is this: On the STFM KIT DUAL TOS kit that is installed (with ube chip) The ube has not been connected to pin 16 of CPU, the bank select jumper is on bk2, but TS is bridged! Which according to your instructions, could mean the ube chip is damaged. I know this probably has nothing to do with the floppy. But I might unsolder the TS blob, and test the other TOS bank.
Hi there. I bought that ToS upgrade from Exxos store, because there was no 1.04 chips, It's a dual TOS chip. I did not need anything to do with the UBE.Steve wrote: ↑Mon Sep 07, 2020 2:39 pmOne small anomaly I just noticed is this: On the STFM KIT DUAL TOS kit that is installed (with ube chip) The ube has not been connected to pin 16 of CPU, the bank select jumper is on bk2, but TS is bridged! Which according to your instructions, could mean the ube chip is damaged. I know this probably has nothing to do with the floppy. But I might unsolder the TS blob, and test the other TOS bank.
So you think i must have done something to the DMA chip? I can't believe I caused so much of an issue with just the soldering thing i messed up with.