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Re: ACORN A5000 inbound
Posted: 28 Nov 2023 10:48
by HigashiJun
Some little progress:
On of the 74HCT245T buffers is now fitted.
- HCT.JPG (289.5 KiB) Viewed 1218 times
The other one has to wait, due to 2 or 3 tracks not having continuity.
The RTC is also soldered and has one track fixed (blurry pic):
- RTC.JPG (234.7 KiB) Viewed 1218 times
And to finish today's post, some new tracks repaired:
- Tracks.JPG (289.5 KiB) Viewed 1218 times
That's all for today.
Re: ACORN A5000 inbound
Posted: 28 Nov 2023 10:58
by rubber_jonnie
Lovely work I have to say, well done.
Re: ACORN A5000 inbound
Posted: 28 Nov 2023 11:26
by HigashiJun
@rubber_jonnie
Thanks, but it's not over yet.
I keep my fingers crossed and I hope the machine will live again.
:crossed1:
Re: ACORN A5000 inbound
Posted: 28 Nov 2023 11:54
by rubber_jonnie
HigashiJun wrote: 28 Nov 2023 11:26
@rubber_jonnie
Thanks, but it's not over yet.
I keep my fingers crossed and I hope the machine will live again.
:crossed1:
With you in spirit :)
Re: ACORN A5000 inbound
Posted: 28 Nov 2023 12:21
by HigashiJun
:cheers:
Re: ACORN A5000 inbound
Posted: 29 Nov 2023 10:47
by HigashiJun
Small update today.
- Battery.JPG (213.76 KiB) Viewed 1168 times
Via repaired with an eyelet and pins fitted for future battery connection.
- Holder.JPG (344.7 KiB) Viewed 1168 times
The battery will be placed in this holder.
- Monitor.JPG (226.6 KiB) Viewed 1168 times
And for fun, I powered on the A5000 (without battery, and track repairs still pending) and was greeted by this nice screen, with a cursor only.
At least, there's a sign of life...
:D
Re: ACORN A5000 inbound
Posted: 29 Nov 2023 11:30
by rubber_jonnie
Did you try booting with Del held down? Should reset the cmos and boot up to Risc OS from ROM.
Re: ACORN A5000 inbound
Posted: 29 Nov 2023 11:39
by HigashiJun
Yes, but nothing happened.
The cursor appeared after another key was pressed ('R' or 'T')...
It was just a try and I didn't care too much... Some jumpers may be incorrectly set, and some tracks are still left for repair.
Re: ACORN A5000 inbound
Posted: 29 Nov 2023 11:40
by stephen_usher
To reset the CMOS it's hold down R and power-on on most Archs.
Re: ACORN A5000 inbound
Posted: 29 Nov 2023 14:34
by rubber_jonnie
stephen_usher wrote: 29 Nov 2023 11:40
To reset the CMOS it's hold down R and power-on on most Archs.
From what I can see, R or Del should do the reset, and it 'should' work, but I think the next step would be to get the floppy drive connected up to see what, if any, the blink codes are.