Author Topic: Amstrad 464 Plus  (Read 296 times)

0 Members and 1 Guest are viewing this topic.

Offline jm8343

  • CPC464
  • **
  • Posts: 5
  • Country: gb
  • Liked: 2
  • Likes Given: 0
Amstrad 464 Plus
« on: 17:18, 15 September 20 »
Hi Guys,


Looking for some advice on this old Amstrad 464 Plus.
I have taken it from our attic after many years to see if it works.
Honestly I don't remember much about it other than it just stopped working one day and was put away.
I would like to try get it working again so have removed the cover for a quick look and pic attached.
What you see is as much as it does and I am far from having any kind of tech knowledge so looking for advice on what the problem is and parts required and where to buy them.
I am thinking the problem is something to do with the 40464 and zener diode next to it because of the photos.
Thank you for any advice you might have to offer not looking to send for repair would like to try it myself.



https://i.postimg.cc/RFJMs6ff/20200822-155931.jpg

https://i.postimg.cc/65fBmN7H/20200822-165314.jpg

https://i.postimg.cc/nLgxDF5L/20200822-170829.jpg
« Last Edit: 17:25, 15 September 20 by jm8343 »

Offline gerald

  • Supporter
  • 6128 Plus
  • *
  • Posts: 1.497
  • Liked: 1036
  • Likes Given: 257
Re: Amstrad 464 Plus
« Reply #1 on: 18:10, 15 September 20 »
https://i.postimg.cc/RFJMs6ff/20200822-155931.jpg
On this picture, you can see the typical screen of the dead RAM.
You just need a pair of KM41464 or equivalent (and socket).



Offline jm8343

  • CPC464
  • **
  • Posts: 5
  • Country: gb
  • Liked: 2
  • Likes Given: 0
Re: Amstrad 464 Plus
« Reply #2 on: 18:57, 15 September 20 »
Thanks I will see if I can find them and start at that point.

Offline eto

  • CPC464
  • **
  • Posts: 6
  • Country: de
  • Liked: 4
  • Likes Given: 3
Re: Amstrad 464 Plus
« Reply #3 on: 12:19, 16 September 20 »

Does it beep when you press "DEL"?

Offline Bryce

  • The Hardware Guy.
  • Supporter
  • 6128 Plus
  • *
  • Posts: 11.728
  • Country: wf
  • It's not broken, it just hasn't been fixed yet.
    • index.php?action=treasury
  • Liked: 4219
  • Likes Given: 444
Re: Amstrad 464 Plus
« Reply #4 on: 12:59, 16 September 20 »
Does it beep when you press "DEL"?

It's definitely not going to beep when it's showing that screen, BASIC hasn't loaded.

Bryce.

Offline jm8343

  • CPC464
  • **
  • Posts: 5
  • Country: gb
  • Liked: 2
  • Likes Given: 0
Re: Amstrad 464 Plus
« Reply #5 on: 02:54, 18 September 20 »
No bleeps nothing only thing that looked out of place to me was that black stuff near the chip and that diode.
One leg of the diode near the black looks like it is burned out of the solder.
Nothing crazy happened with the machine just one day it did not load any games and it was put away.
I have not done anything to it yet and it was never opened before me taking the cover off.
Looking around the internet not much about where to buy components other than china.
I am sure it will awaken memories if I can get it working but not right now.  :doh:


Thanks again

Offline Bryce

  • The Hardware Guy.
  • Supporter
  • 6128 Plus
  • *
  • Posts: 11.728
  • Country: wf
  • It's not broken, it just hasn't been fixed yet.
    • index.php?action=treasury
  • Liked: 4219
  • Likes Given: 444
Re: Amstrad 464 Plus
« Reply #6 on: 13:17, 20 September 20 »
The black gunk doesn't look like a problem and the diode looks fine too. It's most likely just bad RAM.

Bryce.

Offline jm8343

  • CPC464
  • **
  • Posts: 5
  • Country: gb
  • Liked: 2
  • Likes Given: 0
Re: Amstrad 464 Plus
« Reply #7 on: 18:44, 20 September 20 »
Thanks Bryce I will update if I can find the ram thanks all!

Offline Skunkfish

  • Supporter
  • 6128 Plus
  • *
  • Posts: 547
  • Country: gb
  • Editor of Colour Personal Computing
    • CPCSTORE.CO.UK - Dedicated to the Amstrad CPC
  • Liked: 401
  • Likes Given: 1015
Re: Amstrad 464 Plus
« Reply #8 on: 19:07, 20 September 20 »
I've never used this site but they seem to have them in stock:
https://www.retroleum.co.uk/128-chips
An expanding array of hardware available at www.cpcstore.co.uk (and issue 3 of CPC Fanzine!)

Offline Bryce

  • The Hardware Guy.
  • Supporter
  • 6128 Plus
  • *
  • Posts: 11.728
  • Country: wf
  • It's not broken, it just hasn't been fixed yet.
    • index.php?action=treasury
  • Liked: 4219
  • Likes Given: 444
Re: Amstrad 464 Plus
« Reply #9 on: Yesterday at 00:20 »
I've never used this site but they seem to have them in stock:
https://www.retroleum.co.uk/128-chips

For 2.45 each plus postage! He can keep them, you can get them for a lot less, even without resorting to China:  https://www.ebay.de/itm/4x-D41464C-10-RAM-Amstrad-CPC-6128-PLUS-AMIGA-ZX-Spectrum-2A-2B-3/233656921718

Bryce.