Galaksija - Revision history

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-04-05T18:14:38Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 18:14, 5 April 2022
Line 120:		Line 120:
	and this is the picture:		and this is the picture:

	[[File:PanGalaksija component placing rev1.0 Preliminary.png]]		[[File:PanGalaksija component placing rev1.0 Preliminary.png\|1000px]]

	Next is finishing the components that have no, or incomplete 3D shapes, so we can create a 3D preview.		Next is finishing the components that have no, or incomplete 3D shapes, so we can create a 3D preview.

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-04-05T18:13:15Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 18:13, 5 April 2022
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	This is how the preliminary placement of the PanGalaksija PCB revision 1.0 looks like (note ~~thatches~~ placement is strictly preliminary, and can change a lot when the layout makes it necessary.		This is how the preliminary placement of the PanGalaksija PCB revision 1.0 looks like (note that this placement is strictly preliminary, and can change a lot when the layout makes it necessary.

	[[File:PanGalaksija-component placement rev 1.0.pdf]]		[[File:PanGalaksija-component placement rev 1.0.pdf]]

Mahjongg at 18:11, 5 April 2022

2022-04-05T18:11:20Z

← Older revision		Revision as of 18:11, 5 April 2022
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	\|Picture=Galaksija 1984.jpg		\|Picture=Galaksija 1984.jpg
	\|Omschrijving=An extremely simple "homecomputer" from former Yugoslavia		\|Omschrijving=An extremely simple "homecomputer" from former Yugoslavia
	\|Status=~~In progress~~		\|Status=Stalled
	\|Contact=Mahjongg		\|Contact=Mahjongg
	}}		}}

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-03-15T18:32:10Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 18:32, 15 March 2022
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	Next is finishing the components that have no, or incomplete 3D shapes, so we can create a 3D preview.		Next is finishing the components that have no, or incomplete 3D shapes, so we can create a 3D preview.

			== March 15, 2022 suspended working on PanGalaksija for now ==

			Now that a ZX-81 enthusiast has got the sd-card interface working for my ZX81+35 clone, I suspended work on my PanGalaksija in favour of working on a PSG board with 32K RAM and OTP ROM socket for a real ZX-81 (and for my ZX-81+38 clone) . I will resume to the PanGalaksija afterwards.

Mahjongg: /* Resume working on it in February 2022 */

2022-03-09T02:50:38Z

Resume working on it in February 2022

← Older revision		Revision as of 02:50, 9 March 2022
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	After a long time suffering from a strongly deteriorated health due to perhaps covid (But I don't remember having had covid) or perhaps from sitting inside all the time, my Asthma from which I always have suffered, but which was kept manageable with medication, got far worse to the extent that I got sick and could do almost nothing. Luckily in the Netherlands you will get an alimony from the state, and I got some pension money, so financially I could get just by for food and paying my rent.		After a long time suffering from a strongly deteriorated health due to perhaps covid (But I don't remember having had covid) or perhaps from sitting inside all the time, my Asthma from which I always have suffered, but which was kept manageable with medication, got far worse to the extent that I got sick and could do almost nothing. Luckily in the Netherlands you will get an alimony from the state, and I got some pension money, so financially I could get just by for food and paying my rent.
	Now I'm slowly getting better an I decided to find something to do, other than moderating a forum, and doing some freelance repair work at a games museum, so I would become clearer in my head.		Now I'm slowly getting better an I decided to find something to do, other than moderating a forum, and doing some freelance repair work at a games museum, so I would become clearer in my head.
	So I decided to pick up where I left in 2016, my ZX81+38 clone seems to be working, and continuing my rhococo development is a bit too much for now, so why not create my own take on the Galaksija, which I will baptise "~~new galaksija~~" to distinguish it from other versions, and to announce this will be a "english" version that will be more modern. I intend to make it as simple and cheap as possible.		So I decided to pick up where I left in 2016, my ZX81+38 clone seems to be working, and continuing my rhococo development is a bit too much for now, so why not create my own take on the Galaksija, which I will baptise "PanGalaksija" to distinguish it from other versions, and to announce this will be a "english" version that will be more modern. read Pan as "worldwide" as in Pandemic. I intend to make it as simple and cheap as possible.
	It will be based on the "CMOS Galaksija" so that it can work with modern Z80's, and I will use KiCad to design it. It will use a single dual sided PCB that is as small as is practical.		It will be based on the "CMOS Galaksija" so that it can work with modern Z80's, and I will use KiCad to design it. It will use a single dual sided PCB that is as small as is practical.
	It will be fed 5V through an USB connector, and will only output PAL composite video, not RF.		It will be fed 5V through an USB connector, and will only output PAL composite video, not RF.

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-03-09T02:45:08Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 02:45, 9 March 2022
Line 116:		Line 116:

	[[File:PanGalaksija-component placement rev 1.0.pdf]]		[[File:PanGalaksija-component placement rev 1.0.pdf]]


			and this is the picture:

			[[File:PanGalaksija component placing rev1.0 Preliminary.png]]

			Next is finishing the components that have no, or incomplete 3D shapes, so we can create a 3D preview.

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-03-09T02:36:10Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 02:36, 9 March 2022
Line 111:		Line 111:

	[[File:PanGalaksija schematic Keys rev1.0.png]]		[[File:PanGalaksija schematic Keys rev1.0.png]]


			This is how the preliminary placement of the PanGalaksija PCB revision 1.0 looks like (note thatches placement is strictly preliminary, and can change a lot when the layout makes it necessary.

			[[File:PanGalaksija-component placement rev 1.0.pdf]]

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-03-09T02:18:56Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 02:18, 9 March 2022
Line 105:		Line 105:

	This is the main section, the keyboard is on a separate sheet.		This is the main section, the keyboard is on a separate sheet.

	[[File:PanGalaksija schematic main rev1.0.png]]		[[File:PanGalaksija schematic main rev1.0.png]]

	This is the keyboard section of PanGalaksija rev 1.0		This is the keyboard section of PanGalaksija rev 1.0

	[[File:PanGalaksija schematic Keys rev1.0.png]]		[[File:PanGalaksija schematic Keys rev1.0.png]]

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-03-09T02:18:32Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 02:18, 9 March 2022
Line 106:		Line 106:
	This is the main section, the keyboard is on a separate sheet.		This is the main section, the keyboard is on a separate sheet.
	[[File:PanGalaksija schematic main rev1.0.png]]		[[File:PanGalaksija schematic main rev1.0.png]]

			This is the keyboard section of PanGalaksija rev 1.0
			[[File:PanGalaksija schematic Keys rev1.0.png]]

Mahjongg: /* March 9, schematic revision 1.0 finished, plus placement of components */

2022-03-09T02:15:28Z

March 9, schematic revision 1.0 finished, plus placement of components

← Older revision		Revision as of 02:15, 9 March 2022
Line 103:		Line 103:
	Today I finished the schematic of revision 1.0 of PanGalaksija, updated it to the PCB and placed all the components, also imported the earlier routing of the keyboard, including the diodes and pullups, now used a 9-pin resistor network for the pullups.		Today I finished the schematic of revision 1.0 of PanGalaksija, updated it to the PCB and placed all the components, also imported the earlier routing of the keyboard, including the diodes and pullups, now used a 9-pin resistor network for the pullups.
	You can see the full schematic in a .PDF here: [[File:PanGalaksija schematic rev1.0.pdf]]		You can see the full schematic in a .PDF here: [[File:PanGalaksija schematic rev1.0.pdf]]

			This is the main section, the keyboard is on a separate sheet.
			[[File:PanGalaksija schematic main rev1.0.png]]