Search found 228 matches

by dessony
Wed Jul 03, 2019 7:13 am
Forum: Hardware
Topic: ZX EPROM Programmer Port
Replies: 6
Views: 351

Re: ZX EPROM Programmer Port

Does this device use an 8255 IC?

DesSony
by dessony
Tue Jun 04, 2019 9:33 pm
Forum: Hardware
Topic: TS2068's schematic
Replies: 4
Views: 419

Re: TS2068's schematic

To Paul, You are most welcomed!

To jdfan1000(David), No, I got a free file from my local public library. Go ahead, putting that file to the archive.org!

Cheers, :D

DesSony
by dessony
Tue Jun 04, 2019 5:01 am
Forum: Hardware
Topic: TS2068's schematic
Replies: 4
Views: 419

TS2068's schematic

Hello everybody,

I decided to upload a Sinclair ZX Spectrum's American cousin's (TS2068) schematic here.
CC-19_Timex _Sinclair 2068.pdf
Computerfact 19
(3.43 MiB) Downloaded 55 times
Enjoy this one! :-D :lol:

Cheers,

DesSony
by dessony
Wed Apr 17, 2019 2:41 am
Forum: Hardware
Topic: Zx81 from death to life??
Replies: 17
Views: 1107

Re: Zx81 from death to life??

RS232, You gave your ZX81 a complicated and hard life. :o WOW! Keep it simple, s______ by gutting a RF modulator's innard. And put a very cute little circuit board inside the metal box. See a topic here: 1024MAK/DesSony Video Transistor Buffer Amplifier Board, https://www.sinclairzxworld.com/viewtop...
by dessony
Thu Apr 11, 2019 11:22 pm
Forum: Hardware
Topic: Winky board II by G.Russell - Electronics
Replies: 3
Views: 973

Re: Winky board II by G.Russell - Electronics

Sorry for a little delay, however here is it! :D
Winky Board II.zip
(3.9 MiB) Downloaded 40 times
Cheers
DesSony
by dessony
Thu Apr 11, 2019 4:14 pm
Forum: Hardware
Topic: NOOO.. My just arrived TS 1500 is flakey!
Replies: 10
Views: 1045

Re: NOOO.. My just arrived TS 1500 is flakey!

Hello diskman,

I am also a American. How does your TS1500's voltages read? There are soldered 8 DRAMs inside the TS1500. These DRAMs demand GROUND, +5 VDC, -5 VDC and also +12 VDC. If not, then check these electrolytic capacitors.

Have a nice day.

Cheers,
DesSony
by dessony
Sat Apr 06, 2019 7:06 am
Forum: Hardware
Topic: http://web.mac.com/lord_philip
Replies: 8
Views: 5874

Re: http://web.mac.com/lord_philip

I still have that device with its clear plastic box, its assembly instruction paper and its loading/saving instruction sheet.

Cheers,
DesSony
by dessony
Sat Mar 30, 2019 3:51 am
Forum: Welcome Area
Topic: Hello from Greece
Replies: 3
Views: 492

Re: Hello from Greece

Welcome to this ZX80, ZX81, TS1000, TS1500, ZX Spectrum, TS2068, Jupiter ACE and more antique computers forum!

Cheers,
DesSony
by dessony
Mon Mar 25, 2019 4:13 am
Forum: Hardware
Topic: ZX81 - White Screen No Cursor
Replies: 22
Views: 1601

Re: ZX81 - White Screen No Cursor

Check for a potential "missing" jumper around LK1. :?: I clearly understand that your motherboard has its 1k (2) RAM chips. Thank you for the picture of your board.

Regards,
DesSony
by dessony
Fri Mar 08, 2019 8:40 am
Forum: Sinclair Misc
Topic: RC2014 Forum!
Replies: 6
Views: 850

Re: RC2014 Forum!

DSC00366.JPG
Front of the board
DSC00364.JPG
Back of the board

Spencer Owen designed this Enhanced Z80 board.

Cheers,
DesSony