Welcome, Guest. Please login or register.


Recent Posts

Pages: 1 [2] 3 4 5 6 7 8 9 10
11
Hardware / Re: Capacitors - wrong orientation?
« Last post by gflorez on 2020.September.16. 23:31:02 »
I think that Judge could be right.... and the schematic wrong.... if there is negative voltage at the left side, GND is positive.
12
Hardware / Re: RF signal only black&white
« Last post by Judge on 2020.September.16. 23:28:42 »
SzörG wrote here that he stabilized the vibration of the RF modulator image with the R202 and put the colors back on it by tuning the C43 ...
13
Hardware / Re: Capacitors - wrong orientation?
« Last post by Judge on 2020.September.16. 23:06:31 »
This is the same motherboard with the original capacitors ... The + seems to be pointing to the right...and so on all the EP motherboards I have seen

25469-0
14
Hardware / Re: Capacitors - wrong orientation?
« Last post by Wolfgang on 2020.September.16. 22:26:21 »
I don't think that the schematics are wrong.
In fact the capacitor in this  image

is strange. The - arrows point in the direction of the narrowing, opposite to the usual way. Since the visible right side of C9 seems to be metal, I would assume that this is the GND side.

To sum it up, I think
- the right side should be minus
- the arrow on the capacitor in the image above is wrong
- the capacitor in the image above is mounted correctly (+ left / - right)
- the silk screen on the pcb seems to be wrong

I am not an electronics expert, so please convince me that I am wrong.:)
15
Hardware / Re: Capacitors - wrong orientation?
« Last post by Judge on 2020.September.16. 22:16:29 »
Ok. So the way it is mounted originally is the right way - despite what the schematics say? :)

ZoZo wrote here on the forum about this long ago what is the reason ...:smt017
16
Hardware / Re: RF signal only black&white
« Last post by Wolfgang on 2020.September.16. 22:09:04 »
Just curious but did you replace anything to get RGB/scart or was that going for the start? :)
Scart worked right away.
17
Hardware / Re: RF signal only black&white
« Last post by John Fante on 2020.September.16. 20:48:22 »
Just curious but did you replace anything to get RGB/scart or was that going for the start? :)
18
Hardware / Re: Capacitors - wrong orientation?
« Last post by John Fante on 2020.September.16. 20:45:01 »
Despite appearances, this is good orientation...

(Attachment Link)

(Attachment Link)

Ok. So the way it is mounted originally is the right way - despite what the schematics say? :)
19
Programozás / Re: Különböző fajta Enterprise gépek programozása
« Last post by gflorez on 2020.September.16. 20:32:22 »
Igen, az Basic memóriacím elmozdulás. Egyszer régen javítottam egy programbetöltőt a Zozo segítségével.

Az áthelyezhető kódhasználat számomra a Enterprise egyik szépsége.

------

Yes, that Basic address displacement. Once, long ago, I fixed one program loader with the aid of Zozo.

Relocatable code use is for me one of the beauties of the Enterprise computer.

-----

Si, ese desplazamiento de direcciones del Basic. Una vez yo corregí un lanzador de un programa con la ayuda de Zozo.

El código relocalizable es para mi una de las bellezas del Enterprise.
20
Hardware / Re: Capacitors - wrong orientation?
« Last post by Judge on 2020.September.16. 19:26:05 »
Hmmm. Interesting. When I did my recap Ioriented my new C9 as it was on the board. + to the right. So I have the same layout as Wolfgang.

Here are the old. And here the new.

Not to hijack the thread but maybe this error is causing my noise. If it is an error, that is!

Despite appearances, this is good orientation...

25465-0

25467-1
Pages: 1 [2] 3 4 5 6 7 8 9 10