Connecting a 3.5" drive
ZXNet echo conference «real.speccy»
Such a problem: I have a “yellow” Scorpio, therefore only
two_ drives are supported (and you need two 5.25" and one 3.5"). I made a power switch between the 3rd and the 5th - everything is ok on the 5th, but the 3rd doesn’t want to write
(WRITE PROTECT), even if you completely turn off the power from the 5th (signal loop in the
drive).
I removed the WPRT signal from the 5th cable: on the 3rd everything became ok, and
on the 5th, of course, Now you can even write to a “sealed” disk (and disc detection in commanders does not work).
Has anyone encountered such a problem?
deadie.horrorsoft.cpu [6912] [hrwI] [ampack] i speccy
WK> Such a problem: I have a “yellow” Scorpio, therefore only _two_ drives are supported
WK> (and you need two 5.25" and one 3.5"). I made a power switch
WK> between the 3rd and the 5th - everything is OK on the 5th, but the 3rd does not want to write
WK> (WRITE PROTECT), even if the power supply from the 5th is completely turned off
WK> (signal loop in the drive).
WK>
WK> I removed the WPRT signal from the 5th cable: on the 3rd it became everything is okay, and
WK> on 5, of course, now you can even write to a “sealed” disk (and
WK> disk detection in commanders does not work).
WK>
WK> Has anyone encountered such a problem?
What nonsense are you doing, uncle. Wouldn’t it be easier to install one microcircuit
and calmly use all 3 (4) drives at once, rather than mutilate the computer?
Pokedova Waldemar
25 Oct 02 (and it was then 04:41)
Waldemar Krigen in his letter to All wrote:
WK> Great, All!
WK> Such trouble: I have a “yellow” Scorpio, therefore only _two_ drives are supported
WK> (and you need two 5.25" and one 3.5"). I made
WK> a power switch between the 3rd and the 5th - on the 5th everything is ok, but
WK> the 3rd doesn’t want to write (WRITE PROTECT), even if from the 5th
WK> you turn off the power completely (the signal loop is in the drive).
WK> I removed the WPRT signal from the 5th cable: on the 3rd everything became ok, and
WK> on 5, of course, now you can even write to a “sealed” disk
WK> (and disk detection in commanders does not work).
WK> Has anyone encountered such a problem?
I also have a yellow scorpion! You wrote it in a complicated way, so listen to how it was for me
I worked for a long time in the 2x5'25 + 1x3'5 configuration. The button worked as follows:
pressed-drive A 5'25 (select 'A' signal is supplied to 5'25)
pressed-drive A 3'5 (select 'A' signal is supplied to 3'5)
plus, the power from the drive that was unnecessary at the moment was turned off!
all this worked for about 3 years until the board was modified to support 4 drives!
you only need one microcircuit (like ID7) and several wires!
The omnipresent Daniil...
If you parallelized two drives and only poweredswitch, then in my opinion this is
incorrect! Switch with drive sampling signals!
Once on Sunday October 27, 2002 at 23:45:34 Daniil Bayanov and Waldemar
Krigen discussed Connecting a 3.5" drive.
and I decided to chime in...
WK>> Such a problem: I have a “yellow” Scorpio, therefore they are supported
WK>> only _two_ drives (and you need two 5.25" and one 3.5"). I made
WK>> a power switch between the 3rd and the 5th - everything is okay on the 5th, but the
WK>> 3rd doesn’t want to write (WRITE PROTECT), even if from the 5th
WK>> you turn off the power completely (the signal loop is in drive).
WK>> I removed the WPRT signal from the 5's cable: on the 3rd everything was ok, but
WK>> on the 5th, of course, now you can even write to a “sealed” disk
WK>> (and the disk detectors in commanders do not work).
WK>> Has anyone encountered such a problem?
DB> I worked in the configuration for a long time 2x5'25 + 1x3'5. The button worked as follows:
DB> pressed - drive A 5'25 (the select 'A' signal is supplied to 5'25)
DB> pressed - drive A 3'5 (the select 'A' signal is supplied to 3'5)
In order to change the default drives without problems, you need to use the
P2K switch independent fixation, it must be soldered into the gap
of the cable from the computer to the disk drives, pins 10 and 12.
┌──────────────────── ─────┬──────────────── 10
│ │ Cable to drives
│ ┌────────────┬──────────────────────── 12
│ │ │ │
│ │ │ │
▀ ▀ ▀ ▀
\ \
\═════════════════\
│ │
│ │
│ │
10 12
Loop from the computer
DB> plus power from unnecessary in at the moment the drive was turned off!
Everything works fine for me even without turning off the power!
DB> all this worked for about 3 years until I modified the board to support 4
DB> drives!
DB> you only need one microcircuit (like ID7) and a few wires!
It’s better to install a screw :)
All the best, Waldemar!
With best wishes *** Sergey *** !
Waldemar Krigen and All talked about the topic of Connecting a 3.5" drive, I intervened:
WK> Great, All!
WK> Such a problem: I have a “yellow” Scorpio, therefore only _two_ drives are supported
WK> (and you need two 5.25" and one 3.5"). I made
WK> a power switch between the three and the five - on the 5th everything is OK, but
WK> the 3rd does not want to write (WRITE PROTECT), even if you completely remove the
WK> power from the 5th (signal loop in the drive).
WK> I removed the WPRT signal from the 5th cable: on the 3rd everything became ok, and
WK> on 5, of course, now you can even write to a “sealed” disk
WK> (and disk detection in commanders does not work).
WK> Has anyone encountered such a problem?
this is a problem of crooked hands and zero knowledge, when you turn off the power supply, the
signal bus on the beta interface with the flop that is turned off goes to 0, and with
this
I’m surprised how it even works for you. Don’t touch Pitalovo, manipulate the
select signal.
With respect, Maxony.
Fri 25 Okt 2002 at 04:41:11 Waldemar Krigen -> All on the topic Connecting 3.5"
drive
WK> Such a problem: I have a “yellow” Scorpio, therefore
""""""""
In this case it does not matter.
WK>
WK> only _two_ drives are supported (and you need two 5.25" and one 3.5") I made
WK> a power switch between the 3rd and the 5th - on the 5th all
WK> is ok, but the 3rd one does not want to write (WRITE PROTECT), even if the
WK> 5 is completely turned off the power supply (the signal loop is in drive).
There is no need to switch the power supply. It should be on both drives.
WK> I removed the WPRT signal from the 5's cable: on the 3rd drive everything
WK> was OK, but on the 5th drive, of course, now you can write even to a
WK> "sealed" disk (and disk detection in
WK> does not work). commanders).
WK> Has anyone encountered this problem?
This problem is quite common. I solved it in a different way. I have two
disk drives 3 and 5. I connected them as A and B through a switch. That is, in one position A - 3, B - 5, in the other position it is the most
convenient.
Since this topic affects many, I will try in the near future. disassemble
your computer and make an article with a diagram for such a connection.
Sincerely, AlexanderKushnikov aka Sander.
VK> what nonsense are you doing, uncle. Wouldn't it be easier
VK> to install one microcircuit and calmly use all 3(4)
VK> drives at once, than to disfigure the computer?
It's better to install the screw right away. This is Scorpio.
WK>>> Has anyone encountered such a problem?
VK>> what kind of nonsense are you doing, uncle. Wouldn't it be easier
VK>> to install one microcircuit and calmly use all 3(4)
VK>> drives at once, rather than disfigure the computer?