Search found 42 matches

by HappyLittleDiodes
Sun Jul 12, 2020 9:33 pm
Forum: Hardware
Topic: 16K Issue TWO --> Hard reset when loading games
Replies: 4
Views: 257

Re: 16K Issue TWO --> Hard reset when loading games

Hi Both Thank you for your detailed responses. Mark, the command returns the correct result for a 16K machine. The reason I checked the ULA is I know I damaged a pad when I desocketed it, so I totally removed it (good practice) to find that it works, and it also allowed me to properly repair the tra...
by HappyLittleDiodes
Sat Jul 11, 2020 10:35 pm
Forum: Hardware
Topic: 16K Issue TWO --> Hard reset when loading games
Replies: 4
Views: 257

16K Issue TWO --> Hard reset when loading games

Hi everyone Hoping you can help me solve an issue. I think it's a hardware issue but I'm not sure at this point. I've been refurbishing an issue two, jobs performed: Recap DCDC Mod (following Retroleum's instructions) New membrane Desocket and heatsink for ULA I know the ULA works as I tried it in a...
by HappyLittleDiodes
Tue Jun 16, 2020 10:40 pm
Forum: Programming
Topic: String handling
Replies: 0
Views: 169

String handling

Hi I have an example script I'm modifying, and I'd like find a faster way to achieve this... DEF FN m$(q$)=q$(2 TO )+q$(1) The purpose of the function is shift a line of space invaders along by one cell, moving the last back to the front of the line. It's just so slow the game really isn't much fun!
by HappyLittleDiodes
Fri May 29, 2020 12:35 am
Forum: Hardware
Topic: Spectrum 48k not booting to sinclair logo screen
Replies: 10
Views: 665

Re: Spectrum 48k not booting to sinclair logo screen

Any photos of the board and its chips?

Do the pixels move while it's on or is it frozen?
by HappyLittleDiodes
Sun May 17, 2020 9:04 pm
Forum: Hardware
Topic: Issue 3 - Recap + DCDC Mod
Replies: 0
Views: 247

Issue 3 - Recap + DCDC Mod

Recapping, Composite mod, cleaning up and DCDC Modding an Issue 3, while drinking coffee.
Please tell me if you see any mistakes or inaccurate information


by HappyLittleDiodes
Sat May 16, 2020 1:19 am
Forum: Hardware
Topic: Stuck with repair of Spectrum+
Replies: 76
Views: 5419

Re: Stuck with repair of Spectrum+

Your clip of the machine running with no RAM looks a lot like what I had here https://youtu.be/OYsv7Jaseu8?t=326 That came down to a broken trace under the RAM sockets. Have you checked continuity on all the lower RAM pins (Except Din and Dout) between the farthest left (IC13) and the farthest right...
by HappyLittleDiodes
Fri May 15, 2020 7:05 pm
Forum: Hardware
Topic: Another eBay gamble
Replies: 5
Views: 547

Re: Another eBay gamble

A small update for you. - I cleaned the case and keyboard - Did the initial tests, all OK - Plugged it in, heard the whine, OK - Checked voltages, 12V is 12.7V but generally OK, better than expected - Plugged it into my TV...... https://i.postimg.cc/bGdxsmxG/1.jpg https://i.postimg.cc/y3CcpBw9/2.jpg
by HappyLittleDiodes
Thu May 14, 2020 10:07 pm
Forum: Hardware
Topic: Another eBay gamble
Replies: 5
Views: 547

Re: Another eBay gamble

Honestly I don't think there's a whole lot to do as long as nothing too weird is happening with the electronics. I would love to restore the face plate, but what can I do except try to paint the areas that have flaked off? I wouldn't be able to match the colour and I don't know any methods to print...
by HappyLittleDiodes
Wed May 13, 2020 10:32 pm
Forum: Hardware
Topic: Another eBay gamble
Replies: 5
Views: 547

Re: Another eBay gamble

Honestly I don't think there's a whole lot to do as long as nothing too weird is happening with the electronics. I would love to restore the face plate, but what can I do except try to paint the areas that have flaked off? I wouldn't be able to match the colour and I don't know any methods to print ...
by HappyLittleDiodes
Wed May 13, 2020 7:13 pm
Forum: Hardware
Topic: Another eBay gamble
Replies: 5
Views: 547

Another eBay gamble

I think I got lucky with this one!
It looks in really good shape except for the face plate.
Haven't done any checks yet... just a first looksee :D