Talk:ProDev DDT - Revision history

Roughana: /* Other */

2023-07-25T14:00:34Z

Other

← Older revision		Revision as of 07:00, 25 July 2023
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	===Other===		===Other===
	Q1 2N3904 Transistor (Not needed for IIgs version)		Q1 2N3904 Transistor (Not needed for IIgs version)<BR>
	DDT1 DM74S287N		DDT1 DM74S287N<BR>
	DDT2 DM74S571N		DDT2 DM74S571N<BR>

	==Questions==		==Questions==
	Is there a build instructions somewhere? The technical folder includes photo of a required wire... This should be called out elsewhere somehow because I had no idea it was necessary from looking at the main wiki page.		Is there a build instructions somewhere? The technical folder includes photo of a required wire... This should be called out elsewhere somehow because I had no idea it was necessary from looking at the main wiki page.

Roughana at 14:00, 25 July 2023

2023-07-25T14:00:07Z

← Older revision		Revision as of 07:00, 25 July 2023
Line 23:		Line 23:
	===Other===		===Other===
	Q1 2N3904 Transistor (Not needed for IIgs version)		Q1 2N3904 Transistor (Not needed for IIgs version)
			DDT1 DM74S287N
			DDT2 DM74S571N

	==Questions==		==Questions==
	~~Please provide the markings for the DDT1 and DDT2 chips~~.		Is there a build instructions somewhere? The technical folder includes photo of a required wire... This should be called out elsewhere somehow because I had no idea it was necessary from looking at the main wiki page.
	~~My (non-RM) kit came with DM74S571N & DM74S287N and~~ I ~~am not sure which goes where~~.

Roughana at 11:58, 22 July 2023

2023-07-22T11:58:32Z

@@ Line 1: / Line 1: @@
 Please post your support questions here and ReActiveMicro or someone from the Community will be glad to assist you!
 ==Parts list and locations==
@@ Line 18: / Line 23: @@
 ===Other===
 Q1 2N3904 Transistor (Not needed for IIgs version)
 ==Questions==
-) I received a larger green capacitor with markings 2A104J but I have no idea where it should go as I don't see this in the photo. Is this really part of the kit? If so, where does it go?<br />
+Please provide the markings for the DDT1 and DDT2 chips.
-) Please confirm where these capacitors should be located as the photo is not clear:<br />
+My (non-RM) kit came with DM74S571N & DM74S287N and I am not sure which goes where.

Roughana at 11:10, 12 November 2022

2022-11-12T11:10:26Z

← Older revision		Revision as of 04:10, 12 November 2022
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	===Other===		===Other===
	Q1 2N3904 Transistor		Q1 2N3904 Transistor (Not needed for IIgs version)

	==Questions==		==Questions==
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	<br />		<br />
	Hope this helps!<br />		Hope this helps!<br />

			<hr>
			I have since been provided with the parts list and schematic for my kit. It is an older one. The kit is for the IIgs version and this does not include the transistor.

RMHenry: /* Questions */

2022-10-03T19:34:18Z

Questions

← Older revision		Revision as of 12:34, 3 October 2022
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	3) Thanks. I'll pick one up locally.<br />		3) Thanks. I'll pick one up locally.<br />
	4) Thanks. I wasn't sure and tried to suck excess solder off between the pins and lifted the mask. I'll reflow and test for continuity.<br />		4) Thanks. I wasn't sure and tried to suck excess solder off between the pins and lifted the mask. I'll reflow and test for continuity.<br />


			<hr>
			>Henry from RM:<br />
			1 - >Is there an equivalent part that this could be used instead of?<br />
			The part technically isn't required for the board to work. It's only for power filtering. Almost any bypass cap can be used. I'd recommend the more common .1uF in case you don't have them.
			1 - >at which location?<br />
			Here is a pic of the top silk layer with all the location markings and values. However a bypass cap will always be connected to an ICs power and ground pins. If that's not the case, then it's some other kind of cap.
			<gallery class="left" widths=450px heights=250px>
			File:2022-10-03_-_ProDEV_DDT_-_Silk_Layer.png
			</gallery>

			>I am not clear on what component should be used in these locations. Is the 10 5v green bulb cap 10uF ? is the *7501 brown bulb uF ?<br />
			Yes the 10 5v green bulb cap sounds to be 10uF. I'd need to see a pic to be 100% sure, but the "10" sounds like a 10uF marking. Sorry to report, I have no idea what the brown bulb would be. I would need to see a pic of it to be sure. Perhaps once you build the board there will be one spot leftover and by process of elimination you will find the location.<br />
			<br />
			Hope this helps!<br />

Roughana at 01:32, 2 October 2022

2022-10-02T01:32:07Z

← Older revision		Revision as of 18:32, 1 October 2022
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	All other R positions: Brown Black Orange 10k x7<br />		All other R positions: Brown Black Orange 10k x7<br />

	==Other=		===Other===
	Q1 2N3904 Transistor		Q1 2N3904 Transistor

Line 36:		Line 36:
	Hope this helps!<br />		Hope this helps!<br />

			<hr>
	1) This is likely an older kit. The writing on the PCB is not as complete WRT component values as the picture on the wiki. Is there an equivalent part that this could be used instead of? at which location?		1) This is likely an older kit. The writing on the PCB is not as complete WRT component values as the picture on the wiki. Is there an equivalent part that this could be used instead of? at which location?<br />
	2) I know where the locations are, I am not clear on what component should be used in these locations. Is the 10 5v green bulb cap 10uF ? is the *7501 brown bulb uF ?		2) I know where the locations are, I am not clear on what component should be used in these locations. Is the 10 5v green bulb cap 10uF ? is the *7501 brown bulb uF ?<br />
	3) Thanks. I'll pick one up locally.		3) Thanks. I'll pick one up locally.<br />
	4) Thanks. I wasn't sure and tried to suck excess solder off between the pins and lifted the mask. I'll reflow and test for continuity.		4) Thanks. I wasn't sure and tried to suck excess solder off between the pins and lifted the mask. I'll reflow and test for continuity.<br />

Roughana at 01:31, 2 October 2022

2022-10-02T01:31:00Z

← Older revision		Revision as of 18:31, 1 October 2022
Line 15:		Line 15:
	R9 Brown Black Red 1k<br />		R9 Brown Black Red 1k<br />
	All other R positions: Brown Black Orange 10k x7<br />		All other R positions: Brown Black Orange 10k x7<br />

			==Other=
			Q1 2N3904 Transistor

	==Questions==		==Questions==
Line 32:		Line 35:
	4 - The LS109, and correct. It looks like Pin15-16 are connected.<br />		4 - The LS109, and correct. It looks like Pin15-16 are connected.<br />
	Hope this helps!<br />		Hope this helps!<br />


			1) This is likely an older kit. The writing on the PCB is not as complete WRT component values as the picture on the wiki. Is there an equivalent part that this could be used instead of? at which location?
			2) I know where the locations are, I am not clear on what component should be used in these locations. Is the 10 5v green bulb cap 10uF ? is the *7501 brown bulb uF ?
			3) Thanks. I'll pick one up locally.
			4) Thanks. I wasn't sure and tried to suck excess solder off between the pins and lifted the mask. I'll reflow and test for continuity.

RMHenry: /* Questions */

2022-09-24T20:30:19Z

Questions

← Older revision		Revision as of 13:30, 24 September 2022
Line 25:		Line 25:


			<hr>
	>Henry from RM:<br />		>Henry from RM:<br />
	1 - 2A104J would be a 104 / .1uf / 100nf cap. Checking my kits I don't see any parts like that. I wonder if this is from an older kit?<br />		1 - 2A104J would be a 104 / .1uf / 100nf cap. Checking my kits I don't see any parts like that. I wonder if this is from an older kit?<br />

RMHenry: /* Questions */

2022-09-24T20:30:08Z

Questions

← Older revision		Revision as of 13:30, 24 September 2022
Line 23:		Line 23:
	3) The photo shows transistor, but I did not receive one in my kit. What is the part number of this?<br />		3) The photo shows transistor, but I did not receive one in my kit. What is the part number of this?<br />
	4) WRT the socket at B1. Is the top left pin, connected to second pin by a trace on the back of the board?<br />		4) WRT the socket at B1. Is the top left pin, connected to second pin by a trace on the back of the board?<br />


	>Henry from RM:<br />		>Henry from RM:<br />

RMHenry: /* Questions */

2022-09-24T20:29:52Z

Questions

← Older revision		Revision as of 13:29, 24 September 2022
Line 24:		Line 24:
	4) WRT the socket at B1. Is the top left pin, connected to second pin by a trace on the back of the board?<br />		4) WRT the socket at B1. Is the top left pin, connected to second pin by a trace on the back of the board?<br />

	>Henry from RM:		>Henry from RM:<br />
	1 - 2A104J would be a 104 / .1uf / 100nf cap. Checking my kits I don't see any parts like that. I wonder if this is from an older kit?<br />		1 - 2A104J would be a 104 / .1uf / 100nf cap. Checking my kits I don't see any parts like that. I wonder if this is from an older kit?<br />
	2 - C1 bottom left corner of the PCB, below LS09, 10uF. C14 is top right, above DDT2, 1uF.<br />		2 - C1 bottom left corner of the PCB, below LS09, 10uF. C14 is top right, above DDT2, 1uF.<br />