Recent posts

#21

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Technical support - Hardware related / Re: CPC 464 doesn’t boot, show...

Last post by hatman72 - Yesterday at 11:20

Hi, I am no expert but had recently a similar problem. What really helped me to debug the 464 was the cartridge you see in the pic. I got it off Ebay

I have an M4 card, so installed the diagnostics ROM on that. Unfortunately it doesn't boot from that either   

#22

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Technical support - Hardware related / Re: CPC 464 doesn’t boot, show...

Last post by salvogendut - Yesterday at 09:42

Hi, I am no expert but had recently a similar problem. What really helped me to debug the 464 was the cartridge you see in the pic. I got it off Ebay

#23

Games / Re: Alien Escape

Last post by XeNoMoRPH - 23:08, 12 July 25

Memory bug is fixed, on the last DSK versión.

I wonder who did this fix  .
Thumbs up for Jörn!

@XeNoMoRPH Works like a charm now.
Out of couriosity,  which mode do you prefer?

Stefan

Mode 0 😁

#24

Amstrad CPC hardware / Re: cpc464 voltage provided by...

Last post by eto - 21:43, 12 July 25

Besides the things explained make sure your bench power supply really delivers the 5V at 1A. 

Or test with another 5V supply if you have one. 

I had exactly the same symptoms and it finally turned out that the bench power supply was malfunctioning and could no longer deliver 5V at 1A. 

It showed 5V and it showed the 0.9A - but there was only 4V I could measure. I tried a lot until I tried a different PSU and voila - 5V again.

#25

Games / Re: Converted GX4000 .cpr - Th...

Last post by iXien - 20:14, 12 July 25

I'd like to request (whenever / if possible) -

A.M.C. Astro Marine Corps
(although it's split into 2 parts, so I guess that's why it hasn't been done yet and makes it awkward - but it's one of my and many others fav Amstrad games)

Simulador Profesional De Tenis
(I came across this recently, and honestly I think it's the best tennis game on the Amstrad. Would time in nicely with Wimbledon on at present!)

Jax The Dog
(Recent homebrew game, my little boy likes playing this game)


Thanks!

Hi @Xyphoe , nice to see you here. Look above, AMC has been patched some weeks ago

#26

Games / Re: Converted GX4000 .cpr - Th...

Last post by Xyphoe - 20:10, 12 July 25

I'd like to request (whenever / if possible) -

A.M.C. Astro Marine Corps 
(although it's split into 2 parts, so I guess that's why it hasn't been done yet and makes it awkward - but it's one of my and many others fav Amstrad games)

Simulador Profesional De Tenis 
(I came across this recently, and honestly I think it's the best tennis game on the Amstrad. Would time in nicely with Wimbledon on at present!)

Jax The Dog
(Recent homebrew game, my little boy likes playing this game)


Thanks!

#27

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Technical support - Hardware related / Re: CPC 464 doesn’t boot, show...

Last post by hatman72 - 19:56, 12 July 25

Hi Hatman72,
      that's not a classic RAM failure. I'd suggest you start by cleaning the pins and reseating all socketed chips and see if it helps.
What's your level of electronics knowledge and do you own any test equipment?

Bryce.

Thanks Bryce. I've had both socketed chips (GA and CPU) out. I know the CPU is ok but my other (working) Amstrad has a 40010 GA so I can't easily test that. 

I own a multimeter and a cheap oscilloscope (which allowed me to check there's activity on all the RAM chips, but I'd consider my electronics knowledge to be fairly basic.

#28

Amstrad CPC hardware / Re: cpc464 voltage provided by...

Last post by Bryce - 19:44, 12 July 25

Hi deadmeat,
    I'd suggest you give the power socket and power switch a good clean. The voltage drop is probably happening in one of those.

Bryce.

#29

Technical support - Hardware related / Re: CPC 464 doesn’t boot, show...

Last post by Bryce - 19:42, 12 July 25

Hi Hatman72,
      that's not a classic RAM failure. I'd suggest you start by cleaning the pins and reseating all socketed chips and see if it helps.
What's your level of electronics knowledge and do you own any test equipment?

Bryce.

#30

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Technical support - Hardware related / CPC 464 doesn’t boot, shows bl...

Last post by hatman72 - 19:33, 12 July 25

Hi everyone, I'm hoping that someone can suggest what might be wrong with this early 464 with a 40007 Gate Array. 

When I start it always ends up at this screen with alternating blocks of 128 characters in light blue and purple. There is no beep if I press delete. There seems to be lots of activity on the board and no chips seem to be getting excessively warm. The problem is that since only the CPU and GA are socketed I don't want to start desoldering chips at random as I do not have a desoldering gun. 

The computer came to me this way and has been stored in a loft. I have no idea whether it was working when it was put there.