Megaspectrum
ZXNet echo conference «hardware.zx»
Hello fan
Yes, to the right (when viewed from above). from the left there is a cable to the controller
engine. There is a power cable lying around in the case (it comes from the power supply - visible in the photo) -
There is no connector at the end. I carefully examined the drive, there are no traces of soldering anywhere,
The top board was not removed - the paint on the bolts is intact. Of the possible options
only this X5 remains.
There are no inscriptions on the board, I've screwed everything up.
P.S. I tried to ring according to your diagram the correspondence to the contacts on the connector
controller and x5 - it doesn't match.
P.P.S - I'll try to upload photos tomorrow.
Hello, spleen
So, we managed to clean the megaspectrum and start it up. There really is some tricky one there
video output, only managed to get a B/W image on the palcoder. Not on the keyboard
Half the buttons worked, it turned out the contacts were rotten. Tomorrow I will buy VG93, I will
look what's wrong with the controller.
Now about the disk drive. Apparently, power is supplied to connector X5,
five-contact. 1-5 and 2-4 are parallelized. Does anyone know where 5, 12 and
earth?
Hello, spleen
The cable from the controller is connected to the right (as shown in the photo) connector of the top board
?????????7
In short, take pictures of the flop guide - top, back and bottom.
Hello, spleen
spl> Yes, to the right (when viewed from above).
Amen :)
I messed up a little with the pinout, because the paths are somehow wonderfully scattered across the layers
. Here's what we really have http://sblive.narod.ru/ZX-Spectrum/Other/OLDTEAC.gif -
power bus on the right connector (if you look with the door towards you). On six right
The pins (or rather the holes) finally have nothing.
Hello fan
fan> Amen :)
fan>
fan> I messed up a little with the pinout, because the tracks are somehow wonderfully layered
fan> are scattered. Here's what it really is
fan> http://sblive.narod.ru/ZX-Spectrum/Other/OLDTEAC.gif - power buses
fan> on the right connector (if you look with the door towards you). On six right
fan> pins (or rather holes) finally have nothing.
It doesn't seem like it, by the way...
Catch the photos. Connector X5 is visible.
File: DSCN1294.JPG http://zx.pk.ru/attachment.php?attachmentid=3154
File: DSCN1295.JPG http://zx.pk.ru/attachment.php?attachmentid=3155
File: DSCN1296.JPG http://zx.pk.ru/attachment.php?attachmentid=3156
Hello, spleen
Hmmm: Radical differences in pinout. Although I (had) a TEAC flop guide
(board left) torn from AGATE.
X5 looks more like test point taps than a power connector. Not
important...
In short, look at the power paths from the mikrukh, you will get +5 and GND and see
thick tracks going to the stepper controller connector, you get +12. They
it seems they just come from the X5 (whatever it is ;)).
Hello fan
fan> Hmm: Radical differences in pinout. Although I (had) a flop guide
fan> TEAC (board left) torn from AGATE.
fan> X5 looks more like test point taps than a power connector.
fan> Doesn't matter...
fan>
fan> In short, look at the power paths from the mikrukh, you will get +5 and GND and
fan> look at the thick tracks going to the stepper controller connector
fan> you will get +12. They seem to just come from the X5 (whatever it is ;)).
In short, I connected the drive, supplied power to the X5 and everything worked. VG93 bought and
put it all in a bunch. TR-DOS on megaspec - 5.01.
Now another problem is how to transfer data to this flop. Tried
format a 40-track floppy disk on Pro and transfer data - on ESN
disk drive - not read - tr0sec9.
For the life of me, I don’t remember how I endured it in ’92. Perhaps you need to first
format a 40-track floppy disk on the EU drive using DCU, then onto it
write on a normal flop.... But DCU is not available on 40-track floppy disks...
Apparently you will have to make a cable to connect the second floppy drive.
Hello, spleen
Format to tyrdos on the EU drive, write to Profi.
Hello fan
fan> Try to type 40 in Tyr Dosa and then format it. For reading
fan> after reboot, be sure to fill in 40 .
How to do this?
Hello fan
fan> Format to tyrdos on the EU drive, write to Pro.
And by default it formats it to 80 tracks and the entire disk is in bad condition. Not such a pro
reads.
Hello, spleen
Try typing 40 in Tyr Dosa and then formatting it. To read after
It is obligatory to fill the reboot with 40 .
Hello fan
I'm late with comments %)
Hello, spleen
The question is not understood %) We go to tyrdos, poke eroglephs 40, poke enter, we get
O.K. . That's all. Now the flop guide should be recognized and do everything correctly.
Hello fan
fan> I'm late with comments %)
It still didn’t help - I’ll have to make a trail for the second flop.