Floppy Disk Question Follow Up

[PCR]

DaffyD® wrote:
| "PCR" <pcrrcp@netzero.net> wrote in message
| news:uQqKAIjVIHA.4448@TK2MSFTNGP03.phx.gbl...

....snip
|> |> OK. Anyhow, I couldn't quite fit in it last time I tried! That
|> |> was an interesting thought Myers posted in your other thread...
|> |>
|> |> .....Quote...........
|> |> The power supply cable carries two voltages,12 volts for the drive
|> |> motor and 5 volts for the electronics. If it is connected in
|> |> reverse, the 12 volt
|> |> line is applied to the electronics, which may cause permanent
|> |> damage. I suggest you try a known good floppy drive, making sure
|> |> to connect the cable correctly.
|> |> .....EOQ.............
|> |>
|> |> I hope nothing like that has been going on with your power
|> |> connector! It's hard to describe the power socket on this SONY
|> |> MPF920-Z floppy drive in my hand. There seems to be a deep
|> |> plastic slot under the 4 metal prongs. One side of the slot
|> |> actually doesn't touch its wall. I guess it depends on the shape
|> |> of the plug whether it will fit just one way-- but I can't see
|> |> that! Good luck!
|> |>
|>
|> | I have a couple of these molex connectors and they all look the way
|> | you
|> | described yours. By the way, I've narrowed the problem down to the
|> | power supply. I totally disconnected the floppy cable, powered on
|> | the computer, and the problem still occurred. It's got to be a
|> | voltage problem. I even tried reinstalling the PS--no luck. And
|> | there's only one way you can connect the PS to the motherboard so I
|> | didn't make a mistake there. Unfortunately, it's too late to return
|> | the PS to the computer store.
|>
|> Uhuh! Could be the floppies are somehow sensitive to the increased
|> power, (I'm guessing). Can you go back to the removed one, or was
|> that dead? I hope the floppies haven't fried now!
|>

....snip
| the old power supply was fried which is why i put in a new one. the
| old
| floppy drive and the new one appear to be fine except for the high
| rpm. at this point, i think that only a person who is had this
| problem and fixed it can help me .

Agreed. Good luck, DaffyD®. Keep us informed. You may need to connect
one of the floppy drives to another computer to see whether it is fried
going by Myers's post. OK, bye.


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
Should things get worse after this,
PCR
pcrrcp@netzero.net

 

[DaffyD®]

"PCR" <pcrrcp@netzero.net> wrote in message
news:epSYwPwVIHA.748@TK2MSFTNGP04.phx.gbl...
> DaffyD® wrote:
> | "PCR" <pcrrcp@netzero.net> wrote in message
> | news:uQqKAIjVIHA.4448@TK2MSFTNGP03.phx.gbl...
>
> ...snip
> |> |> OK. Anyhow, I couldn't quite fit in it last time I tried! That
> |> |> was an interesting thought Myers posted in your other thread...
> |> |>
> |> |> .....Quote...........
> |> |> The power supply cable carries two voltages,12 volts for the drive
> |> |> motor and 5 volts for the electronics. If it is connected in
> |> |> reverse, the 12 volt
> |> |> line is applied to the electronics, which may cause permanent
> |> |> damage. I suggest you try a known good floppy drive, making sure
> |> |> to connect the cable correctly.
> |> |> .....EOQ.............
> |> |>
> |> |> I hope nothing like that has been going on with your power
> |> |> connector! It's hard to describe the power socket on this SONY
> |> |> MPF920-Z floppy drive in my hand. There seems to be a deep
> |> |> plastic slot under the 4 metal prongs. One side of the slot
> |> |> actually doesn't touch its wall. I guess it depends on the shape
> |> |> of the plug whether it will fit just one way-- but I can't see
> |> |> that! Good luck!
> |> |>
> |>
> |> | I have a couple of these molex connectors and they all look the way
> |> | you
> |> | described yours. By the way, I've narrowed the problem down to the
> |> | power supply. I totally disconnected the floppy cable, powered on
> |> | the computer, and the problem still occurred. It's got to be a
> |> | voltage problem. I even tried reinstalling the PS--no luck. And
> |> | there's only one way you can connect the PS to the motherboard so I
> |> | didn't make a mistake there. Unfortunately, it's too late to return
> |> | the PS to the computer store.
> |>
> |> Uhuh! Could be the floppies are somehow sensitive to the increased
> |> power, (I'm guessing). Can you go back to the removed one, or was
> |> that dead? I hope the floppies haven't fried now!
> |>
>
> ...snip
> | the old power supply was fried which is why i put in a new one. the
> | old
> | floppy drive and the new one appear to be fine except for the high
> | rpm. at this point, i think that only a person who is had this
> | problem and fixed it can help me .
>
> Agreed. Good luck, DaffyD®. Keep us informed. You may need to connect
> one of the floppy drives to another computer to see whether it is fried
> going by Myers's post. OK, bye.
>
>
> --
> Thanks or Good Luck,
> There may be humor in this post, and,
> Naturally, you will not sue,
> Should things get worse after this,
> PCR
> pcrrcp@netzero.net
>
>Yeah, I read his post and it gave me info I hadn't known before. If the
floppy was fried and not working it would at least be something to go on.

 

[DaffyD®]

"Buffalo" <Eric@nada.com.invalid> wrote in message
news:dcydnZaXmaSh5hbanZ2dnUVZ_vOlnZ2d@comcast.com...
> DaffyD® wrote:
> > "Gary S. Terhune" <none> wrote in message
> > news:%23KVlP0jVIHA.5348@TK2MSFTNGP03.phx.gbl...
> >> Please don't feed the trolls. Or have you adopted one of them?
> >>
> >> --
> >> Gary S. Terhune
> >> MS-MVP Shell/User
> >> www.grystmill.com
> >>
> >> "PCR" <pcrrcp@netzero.net> wrote in message
> >> news:ejbhBVjVIHA.4696@TK2MSFTNGP05.phx.gbl...
> >>> thanatoid wrote:
> >
> >> what and who is a troll?
>
> The 'who' is thanatoid which, by the way, is an adj meaning :
> 1. Resembling death.
> 2. Mortal deadly.
>
> Thanks for the info and the definition. That guy is a whack job.
--
{ : [|]=( DaffyD®

If I knew where I was I'd be there now.

 

[DaffyD®]

"PCR" <pcrrcp@netzero.net> wrote in message
news:e7mc8FwVIHA.1132@TK2MSFTNGP06.phx.gbl...
> Gary S. Terhune wrote:
> | Please don't feed the trolls. Or have you adopted one of them?
>
> I'm not convinced thanatoid is 99.99% a troll. I think he still can be
> exorcised with hot coals & a prayer!
>
>
> | --
> | Gary S. Terhune
> | MS-MVP Shell/User
> | www.grystmill.com
> |
> | "PCR" <pcrrcp@netzero.net> wrote in message
> | news:ejbhBVjVIHA.4696@TK2MSFTNGP05.phx.gbl...
> |> thanatoid wrote:
>
> --
> Thanks or Good Luck,
> There may be humor in this post, and,
> Naturally, you will not sue,
> Should things get worse after this,
> PCR
> pcrrcp@netzero.net
>
> And I thought that guy was calling me a troll. Maybe he was. My brain
hurts again and I go lie down now.

 

[DaffyD®]

"w_tom" <w_tom1@usa.net> wrote in message
news:ad6a702e-d415-4c2e-97aa-7eacf380c35e@v67g2000hse.googlegroups.com...
On Jan 12, 11:59 pm, "DaffyD®" <daf...@woohoo.com> wrote:
> I totally disconnected the floppy cable, powered on the computer, and the
> problem still occurred. It's got to be a voltage supply roblem. I even
> tried reinstalling the power supply--no luck. ... I know it would help if
> I had a multimeter, and it would be a greater help if I knew how to use
> one.

First, if your floppy disk problem was created by a power supply,
well, what from a power supply would cause your 'always on' problem?
Nothing really. A controller orders a floppy to power on. But your
floppy powers on each when not connected to that controller. Actually
controller talks to a transistor to power the floppy on. But that
transistor (apparently) is always on (shorted) whether ordered on or
off.

When I would repair floppy drive electronics, I would now know the
small location to study and repair. Obviously you are not going to do
that. Your floppy drive is defective and must be replaced. No way
around that apparent conclusion.

Second, the multimeter is so complex that only Kmart shoppers would
buy one for a trivial $20. A significantly useful tool that requires
complex training. Dial (select) what you want to measure, touch
probes to conductors (wires), then read a number. Now you are an
expert multimeter user. Meter is that complex. If you cannot use a
multimeter, then never consider an Ipod. Ipods are far more complex
also require people with Kmart abilities.

Third, the meter measuring two voltages to the floopy drive might
have provided some useful information. Probably not. Extremely
doubtful. Meter readings would not have solved anything since your
test with cable removed says the failure is the power on circuitry
inside floppy disk..

Fourth, a defecttive power supply can still boot a computer. The
better informed technician uses a meter and two minute procedure to
confirm that replaced power supply is working properly. Just another
in a long list of solutions provided by the meter - which are not
needed for this 'simple' failure. Simple: as in why were so many
replies necessary? Well, others fix things using wild speculation
which explains so much wasted labor. Neither you nor I are going to
unsolder and replace the defective semiconductor circuit. Replace the
floppy drive.

w_tom, I've mentioned in prior posts that I did replace the floppy drive but
had the same problem with the old and the new ones. So that solution has
been eliminated. However, I do enjoy your writing style in your responses
and the information they contain. I guess I need to start shopping at Kmart.

I'm also seeking advice outside of this newsgroup and will report back if
anyone else can solve the problem.
--
{ : [|]=( DaffyD®

If I knew where I was I'd be there now.

 

[DaffyD®]

"Buffalo" <Eric@nada.com.invalid> wrote in message
news:ksWdnVFia_8_FhbanZ2dnUVZ_hWdnZ2d@comcast.com...
> w_tom wrote:
> > On Jan 12, 11:59 pm, "DaffyD®" <daf...@woohoo.com> wrote:
> >> I totally disconnected the floppy cable, powered on the computer,
> >> and the problem still occurred. It's got to be a voltage supply
> >> roblem. I even tried reinstalling the power supply--no luck. ... I
> >> know it would help if I had a multimeter, and it would be a greater
> >> help if I knew how to use one.
> >
> > First, if your floppy disk problem was created by a power supply,
> > well, what from a power supply would cause your 'always on' problem?
> > Nothing really. A controller orders a floppy to power on. But your
> > floppy powers on each when not connected to that controller. Actually
> > controller talks to a transistor to power the floppy on. But that
> > transistor (apparently) is always on (shorted) whether ordered on or
> > off.
> >
> > When I would repair floppy drive electronics, I would now know the
> > small location to study and repair. Obviously you are not going to do
> > that. Your floppy drive is defective and must be replaced. No way
> > around that apparent conclusion.
> >
> > Second, the multimeter is so complex that only Kmart shoppers would
> > buy one for a trivial $20. A significantly useful tool that requires
> > complex training. Dial (select) what you want to measure, touch
> > probes to conductors (wires), then read a number. Now you are an
> > expert multimeter user. Meter is that complex. If you cannot use a
> > multimeter, then never consider an Ipod. Ipods are far more complex
> > also require people with Kmart abilities.
> >
> > Third, the meter measuring two voltages to the floopy drive might
> > have provided some useful information. Probably not. Extremely
> > doubtful. Meter readings would not have solved anything since your
> > test with cable removed says the failure is the power on circuitry
> > inside floppy disk..
> >
> > Fourth, a defecttive power supply can still boot a computer. The
> > better informed technician uses a meter and two minute procedure to
> > confirm that replaced power supply is working properly. Just another
> > in a long list of solutions provided by the meter - which are not
> > needed for this 'simple' failure. Simple: as in why were so many
> > replies necessary? Well, others fix things using wild speculation
> > which explains so much wasted labor. Neither you nor I are going to
> > unsolder and replace the defective semiconductor circuit. Replace the
> > floppy drive.
>
> Actually, he did replace the drive. This is a long thread and it is easy
to
> miss what he did and did not do.
> I believe that he: (not in any particular order after he replaced the PSU)
> 1) replaced the ribbon cable
> 2) reversed the ribbon cable at either end and at both ends
> 3) checked to see if his FDD Controller was listed (Safe Mode only showed
> one)
> 4) rechecked his PS connection to the MB
> 5) rechecked his power supply connection to the FDD (not sure if it is
> possible to reverse that connection)
> 6) replaced the FDD with a 'new' one
> 7) removed the ribbon cable from the new FDD and still had the problem
>
> Would a reversed polarity on the power supply to the FDD cause the above?
>
> Are you referring to the power connector to the FDD?

 

[DaffyD®]

"glee" <glee29@spamindspring.com> wrote in message
news:uCEB52sVIHA.4696@TK2MSFTNGP05.phx.gbl...
> "w_tom" <w_tom1@usa.net> wrote in message
> news:ad6a702e-d415-4c2e-97aa-7eacf380c35e@v67g2000hse.googlegroups.com...
> >On Jan 12, 11:59 pm, "DaffyD®" <daf...@woohoo.com> wrote:
> >> I totally disconnected the floppy cable, powered on the computer, and
the
> >> problem still occurred. It's got to be a voltage supply roblem. I even
> >> tried reinstalling the power supply--no luck. ... I know it would help
if
> >> I had a multimeter, and it would be a greater help if I knew how to use
> >> one.
> >
> > First, if your floppy disk problem was created by a power supply,
> >well, what from a power supply would cause your 'always on' problem?
> >Nothing really. A controller orders a floppy to power on. But your
> >floppy powers on each when not connected to that controller. Actually
> >controller talks to a transistor to power the floppy on. But that
> >transistor (apparently) is always on (shorted) whether ordered on or
> >off.
> >
> > When I would repair floppy drive electronics, I would now know the
> >small location to study and repair. Obviously you are not going to do
> >that. Your floppy drive is defective and must be replaced. No way
> >around that apparent conclusion.
> >
> > Second, the multimeter is so complex that only Kmart shoppers would
> >buy one for a trivial $20. A significantly useful tool that requires
> >complex training. Dial (select) what you want to measure, touch
> >probes to conductors (wires), then read a number. Now you are an
> >expert multimeter user. Meter is that complex. If you cannot use a
> >multimeter, then never consider an Ipod. Ipods are far more complex
> >also require people with Kmart abilities.
> >
> > Third, the meter measuring two voltages to the floopy drive might
> >have provided some useful information. Probably not. Extremely
> >doubtful. Meter readings would not have solved anything since your
> >test with cable removed says the failure is the power on circuitry
> >inside floppy disk..
> >
> > Fourth, a defecttive power supply can still boot a computer. The
> >better informed technician uses a meter and two minute procedure to
> >confirm that replaced power supply is working properly. Just another
> >in a long list of solutions provided by the meter - which are not
> >needed for this 'simple' failure. Simple: as in why were so many
> >replies necessary? Well, others fix things using wild speculation
> >which explains so much wasted labor. Neither you nor I are going to
> >unsolder and replace the defective semiconductor circuit. Replace the
> >floppy drive.
>
> That solution was already tried earlier in the thread, and the user stated
the
> problem still exists with a new floppy drive. There was also an earlier
thread by
> ther same user on this subject, where it was originally suggested.
>
> The suggestions in this thread are not based on "wild speculation" despite
how you
> may perceive it. I do look forward to your next reply, as to why the
problem
> remains even with a new drive, and with the data cable disconnected.
> --
> Glen Ventura, MS MVP Shell/User, A+
> http://dts-l.net/
> http://dts-l.net/goodpost.htm
>
Glen, my hat's off to you for being able to continually flow thru the eye of
the needle with this thread.

 

[DaffyD®]

"PCR" <pcrrcp@netzero.net> wrote in message
news:O09SVKwVIHA.1208@TK2MSFTNGP03.phx.gbl...
> DaffyD® wrote:
> | "PCR" <pcrrcp@netzero.net> wrote in message
> | news:ejbhBVjVIHA.4696@TK2MSFTNGP05.phx.gbl...
>
> ...snip
> |pcr, thanks for your support of me in your reply to whatever that jerk
> | wrote. i've blocked his posts and i scrolled past the text you
> | replied to in your post so i have no idea what junk he was spewing.
>
> I'm going to hunt him down for an exorcism with prayer & hot coals. Soon
> you may remove him from your kill-file for being cured or for the
> redundancy of it.
>
> | --
> | { : [|]=( DaffyD®
> |
> | If I knew where I was I'd be there now.
>
> --
> Thanks or Good Luck,
> There may be humor in this post, and,
> Naturally, you will not sue,
> Should things get worse after this,
> PCR
> pcrrcp@netzero.net
>
> he's cured? how much salt did it take?

 

[Buffalo]

DaffyD® wrote:
> "Buffalo" <Eric@nada.com.invalid> wrote in message
> >
>> Actually, he did replace the drive. This is a long thread and it is
>> easy to miss what he did and did not do.
>> I believe that he: (not in any particular order after he replaced
>> the PSU) 1) replaced the ribbon cable
>> 2) reversed the ribbon cable at either end and at both ends
>> 3) checked to see if his FDD Controller was listed (Safe Mode only
>> showed one)
>> 4) rechecked his PS connection to the MB
>> 5) rechecked his power supply connection to the FDD (not sure if it
>> is possible to reverse that connection)
>> 6) replaced the FDD with a 'new' one
>> 7) removed the ribbon cable from the new FDD and still had the
>> problem
>>
>> Would a reversed polarity on the power supply to the FDD cause the
>> above?
>>
>> Are you referring to the power connector to the FDD?

Yes.
I was just thinking that perhaps the polarity on the power connector to the
FDD was reversed due to faulty assembly of the PSU.
Stranger things have happened.
PS: I really don't have a clue if that would cause your problem, but I am
out of other ideas.

 

[Buffalo]

DaffyD® wrote:
> "PCR" <pcrrcp@netzero.net> wrote in message
> news:e7mc8FwVIHA.1132@TK2MSFTNGP06.phx.gbl...
>> Gary S. Terhune wrote:
>>> Please don't feed the trolls. Or have you adopted one of them?
>>
>> I'm not convinced thanatoid is 99.99% a troll. I think he still can
>> be exorcised with hot coals & a prayer!
>>
>>
>>> --
>>> Gary S. Terhune
>>> MS-MVP Shell/User
>>> www.grystmill.com
>>>
>>> "PCR" <pcrrcp@netzero.net> wrote in message
>>> news:ejbhBVjVIHA.4696@TK2MSFTNGP05.phx.gbl...
>>>> thanatoid wrote:
>>
>> --
>> Thanks or Good Luck,
>> There may be humor in this post, and,
>> Naturally, you will not sue,
>> Should things get worse after this,
>> PCR
>> pcrrcp@netzero.net
>>
>> And I thought that guy was calling me a troll. Maybe he was. My brain
> hurts again and I go lie down now.

That 'guy' (meaning Gary S. Terhune) you thought was calling you a troll is
one of the sharpest in the Win98 NG.
Have a cold beer and relax because you have a couple of the best answering
you.

 

[w_tom]

On Jan 14, 11:19 am, "Buffalo" <E...@nada.com.invalid> wrote:
> Would a reversed polarity on the power supply to the FDD cause the above?

Reverse polarity connector means 5 and 12 volts are reversed. 5
volts circuits would fry internally without any external indication.

One example of how wires (by color and voltage) are routed into
connector:
http://www.hardwarebook.info/5.25"_Power

Pin one on cable connector must match pin one on pc board
connector. Pin one is indicated by some indentation or mark. PC
board may also have a pin one indication and markings for voltages.

On example of wires for another disk drive connector:
http://www.hardwarebook.info/3.5"_Power

However if connectors were reversed, same would be damaging other
peripherals such as hard drive and CD-Rom.

Moving on to more absurd possibilities. Are power cable extenders
that are defective being used? Was power cord removed from wall
receptacle before making any cable changes? What static electric
discharge protection was performed? Where any side mounting screws
so long as to contact electronics? Anything making contact with disk
drive electronics when mounted in chassis?

Based upon what was posted, each disk drive has an internal
failure. Why do multiple drives have same failure? Quite possible
is that multiple drives from same source were provided defective. If
anything else (like system power supply) created this failure, then
other peripherals also should be damaged. Nothing from the data cable
should have caused damage.

 

[thanatoid]

"Buffalo" <Eric@nada.com.invalid> wrote in
news:7eednfKB-s7PhxHanZ2dnUVZ_j6dnZ2d@comcast.com:

> DaffyD® wrote:
>> "Buffalo" <Eric@nada.com.invalid> wrote in message
>> >
>>> Actually, he did replace the drive. This is a long thread
>>> and it is easy to miss what he did and did not do.
>>> I believe that he: (not in any particular order after he
>>> replaced the PSU) 1) replaced the ribbon cable
>>> 2) reversed the ribbon cable at either end and at both
>>> ends 3) checked to see if his FDD Controller was listed
>>> (Safe Mode only showed one)
>>> 4) rechecked his PS connection to the MB
>>> 5) rechecked his power supply connection to the FDD (not
>>> sure if it is possible to reverse that connection)
>>> 6) replaced the FDD with a 'new' one
>>> 7) removed the ribbon cable from the new FDD and still
>>> had the problem
>>>
>>> Would a reversed polarity on the power supply to the FDD
>>> cause the above?
>>>
>>> Are you referring to the power connector to the FDD?
>
> Yes.
> I was just thinking that perhaps the polarity on the power
> connector to the FDD was reversed due to faulty assembly of
> the PSU. Stranger things have happened.
> PS: I really don't have a clue if that would cause your
> problem, but I am out of other ideas.

How about this one:
You are being TROLLED. All that remains to be seen is for how
much longer.


--
Better a cruel truth than a comfortable delusion.
Edward Abbey (1927 - 1989)

 

[thanatoid]

w_tom <w_tom1@usa.net> wrote in
news:a3da76eb-0256-4634-bcd1-c7a11f976d22@m34g2000hsf.googlegr
oups.com:

> On Jan 14, 11:19 am, "Buffalo" <E...@nada.com.invalid>
> wrote:
>> Would a reversed polarity on the power supply to the FDD
>> cause the above?
>
> Reverse polarity connector means 5 and 12 volts are
> reversed. 5
> volts circuits would fry internally without any external
> indication.
>
> One example of how wires (by color and voltage) are
> routed into
> connector:
> http://www.hardwarebook.info/5.25"_Power
>
> Pin one on cable connector must match pin one on pc board
> connector. Pin one is indicated by some indentation or
> mark. PC board may also have a pin one indication and
> markings for voltages.
>
> On example of wires for another disk drive connector:
> http://www.hardwarebook.info/3.5"_Power
>
> However if connectors were reversed, same would be
> damaging other
> peripherals such as hard drive and CD-Rom.
>
> Moving on to more absurd possibilities. Are power cable
> extenders
> that are defective being used? Was power cord removed from
> wall receptacle before making any cable changes? What
> static electric discharge protection was performed? Where
> any side mounting screws so long as to contact electronics?
> Anything making contact with disk drive electronics when
> mounted in chassis?
>
> Based upon what was posted, each disk drive has an
> internal
> failure. Why do multiple drives have same failure? Quite
> possible is that multiple drives from same source were
> provided defective. If anything else (like system power
> supply) created this failure, then other peripherals also
> should be damaged. Nothing from the data cable should have
> caused damage.

You are missing an essential point. This is a fictitious system
with a fictitious problem. Therefore, nothing will EVER work,
until the troll decides he's bored and will announce his system
has miraculously started behaving like a normal computer.


--
Better a cruel truth than a comfortable delusion.
Edward Abbey (1927 - 1989)

 

[Buffalo]

w_tom wrote:
> On Jan 14, 11:19 am, "Buffalo" <E...@nada.com.invalid> wrote:
>> Would a reversed polarity on the power supply to the FDD cause the
>> above?
>
> Reverse polarity connector means 5 and 12 volts are reversed. 5
> volts circuits would fry internally without any external indication.

I just meant that the polarity was reversed in the connector, + & - , not
the voltage.

 

[Buffalo]

thanatoid wrote:
>>"Buffalo" <Eric@nada.com.invalid> >>
>> Actually, he did replace the drive. This is a long thread
>> and it is easy to miss what he did and did not do.
>> I believe that he: (not in any particular order after he
>> replaced the PSU) 1) replaced the ribbon cable
>> 2) reversed the ribbon cable at either end and at both ends
>> 3) checked to see if his FDD Controller was listed (Safe
>> Mode only showed one)
>> 4) rechecked his PS connection to the MB
>> 5) rechecked his power supply connection to the FDD (not
>> sure if it is possible to reverse that connection)
>> 6) replaced the FDD with a 'new' one
>> 7) removed the ribbon cable from the new FDD and still had
>> the problem
>>
>> Would a reversed polarity on the power supply to the FDD
>> cause the above?
>
> Right, and *I* am the whack job.
>
> 1.
> Anyone who has /any/ serious computer experience has found out
> over time that /sometimes/ things happen that have NO LOGICAL
> EXPLANATION.
>
> 2.
> OTOH, anybody who would go on for weeks about components which
> would cost him a total of about $20 to replace,
[cut]

The OP did replace the FDD and the ribbon cable.
He did not replace the new PSU.
PS:Life can be either what others make it for you OR what you make it for
yourself.
Not stated properly, but I think it is appropiate.

 

[w_tom]

On Jan 14, 10:02 pm, thanatoid <wait...@the.exit.invalid> wrote:
> You are missing an essential point. This is a fictitious system
> with a fictitious problem. Therefore, nothing will EVER work,
> until the troll decides he's bored and will announce his system
> has miraculously started behaving like a normal computer.

War games.

 

[w_tom]

On Jan 14, 10:16 pm, "Buffalo" <E...@nada.com.invalid> wrote:
> I just meant that the polarity was reversed in the connector, + & - , not
> the voltage.

Connectors are wires so that voltages are on outside two pins and
grounds are center two. Reversing any power connector will not create
a polarity reversal.

BTW, important for multi-voltage devices that may be 'hot-
popped' (intentionally or accidentally). If both voltages connect
without grounds, then electronic damage can result. Better designs
locate a ground connector so that ground is always first to make and
last to break. That applies to power cables and to computer cards.
But the PC standard does not do that because cables are not intended
to be changed with power applied to the box.

 

[thanatoid]

"Buffalo" <Eric@nada.com.invalid> wrote in
news:g7-dnXgqBoFwuhHanZ2dnUVZ_o-mnZ2d@comcast.com:

> thanatoid wrote:
>>>"Buffalo" <Eric@nada.com.invalid> >>
>>> Actually, he did replace the drive. This is a long thread
>>> and it is easy to miss what he did and did not do.
>>> I believe that he: (not in any particular order after he
>>> replaced the PSU) 1) replaced the ribbon cable
>>> 2) reversed the ribbon cable at either end and at both
>>> ends 3) checked to see if his FDD Controller was listed
>>> (Safe Mode only showed one)
>>> 4) rechecked his PS connection to the MB
>>> 5) rechecked his power supply connection to the FDD (not
>>> sure if it is possible to reverse that connection)
>>> 6) replaced the FDD with a 'new' one
>>> 7) removed the ribbon cable from the new FDD and still
>>> had the problem
>>>
>>> Would a reversed polarity on the power supply to the FDD
>>> cause the above?
>>
>> Right, and *I* am the whack job.
>>
>> 1.
>> Anyone who has /any/ serious computer experience has found
>> out over time that /sometimes/ things happen that have NO
>> LOGICAL EXPLANATION.
>>
>> 2.
>> OTOH, anybody who would go on for weeks about components
>> which would cost him a total of about $20 to replace,
> [cut]
>
> The OP did replace the FDD and the ribbon cable.
> He did not replace the new PSU.
> PS:Life can be either what others make it for you OR what
> you make it for yourself.
> Not stated properly, but I think it is appropiate.

Close enough. I know better than ANYBODY that I should have
never been born. As for killing time and annoying (occasionally
helping) people on the Usenet, well, there used to be the town
square, then the mall, and now there's this. Not my fault. I
think the computer is second only to television in its inherent
evil.

I get the /vague/ feeling you may be a kind soul who wishes s/he
could help me, but trust me, it's not worth it, as well as
impossible. We'll ALL be better off when I'm gone.

And if my "vague feeling" was way off, just chalk it up to the
fact I'm crazy.


--
Any mental activity is easy if it need not be subjected to
reality.

 

[PCR]

DaffyD® wrote:
| "PCR" <pcrrcp@netzero.net> wrote in message
| news:O09SVKwVIHA.1208@TK2MSFTNGP03.phx.gbl...
|> DaffyD® wrote:
|> | "PCR" <pcrrcp@netzero.net> wrote in message
|> | news:ejbhBVjVIHA.4696@TK2MSFTNGP05.phx.gbl...
|>
|> ...snip
|> |pcr, thanks for your support of me in your reply to whatever that
|> | jerk wrote. i've blocked his posts and i scrolled past the text you
|> | replied to in your post so i have no idea what junk he was spewing.
|>
|> I'm going to hunt him down for an exorcism with prayer & hot coals.
|> Soon you may remove him from your kill-file for being cured or for
|> the redundancy of it.
|>
|> | --
|> | { : [|]=( DaffyD®
|> |
|> | If I knew where I was I'd be there now.

....snip
| he's cured? how much salt did it take?

Not yet! I haven't found him yet! After I have applied prayer & he has
swallowed the hot coals, for one reason or another you may remove him
from your kill-file-- but wait until I say!


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
Should things get worse after this,
PCR
pcrrcp@netzero.net

 

[PCR]

DaffyD® wrote:
| "PCR" <pcrrcp@netzero.net> wrote in message
| news:epSYwPwVIHA.748@TK2MSFTNGP04.phx.gbl...
|> DaffyD® wrote:
|> | "PCR" <pcrrcp@netzero.net> wrote in message
|> | news:uQqKAIjVIHA.4448@TK2MSFTNGP03.phx.gbl...
|>
|> ...snip
|> |> |> OK. Anyhow, I couldn't quite fit in it last time I tried! That
|> |> |> was an interesting thought Myers posted in your other thread...
|> |> |>
|> |> |> .....Quote...........
|> |> |> The power supply cable carries two voltages,12 volts for the
|> |> |> drive motor and 5 volts for the electronics. If it is
|> |> |> connected in reverse, the 12 volt
|> |> |> line is applied to the electronics, which may cause permanent
|> |> |> damage. I suggest you try a known good floppy drive, making
|> |> |> sure to connect the cable correctly.
|> |> |> .....EOQ.............
|> |> |>
|> |> |> I hope nothing like that has been going on with your power
|> |> |> connector! It's hard to describe the power socket on this SONY
|> |> |> MPF920-Z floppy drive in my hand. There seems to be a deep
|> |> |> plastic slot under the 4 metal prongs. One side of the slot
|> |> |> actually doesn't touch its wall. I guess it depends on the
|> |> |> shape of the plug whether it will fit just one way-- but I
|> |> |> can't see that! Good luck!
|> |> |>
|> |>
|> |> | I have a couple of these molex connectors and they all look the
|> |> | way you
|> |> | described yours. By the way, I've narrowed the problem down to
|> |> | the power supply. I totally disconnected the floppy cable,
|> |> | powered on the computer, and the problem still occurred. It's
|> |> | got to be a voltage problem. I even tried reinstalling the
|> |> | PS--no luck. And there's only one way you can connect the PS to
|> |> | the motherboard so I didn't make a mistake there.
|> |> | Unfortunately, it's too late to return the PS to the computer
|> |> | store.
|> |>
|> |> Uhuh! Could be the floppies are somehow sensitive to the increased
|> |> power, (I'm guessing). Can you go back to the removed one, or was
|> |> that dead? I hope the floppies haven't fried now!
|> |>
|>
|> ...snip
|> | the old power supply was fried which is why i put in a new one. the
|> | old
|> | floppy drive and the new one appear to be fine except for the high
|> | rpm. at this point, i think that only a person who is had this
|> | problem and fixed it can help me .
|>
|> Agreed. Good luck, DaffyD®. Keep us informed. You may need to connect
|> one of the floppy drives to another computer to see whether it is
|> fried going by Myers's post. OK, bye.

....snip
| Yeah, I read his post and it gave me info I hadn't known before. If
| the
| floppy was fried and not working it would at least be something to go
| on.

Now, I've found a photo...!...
http://www.pcguide.com/byop/byop_PowertoFloppyDrive.htm
Power to Floppy Drive

The socket at the drive looks a lot like the one I've got in my hands--
four metal pins over a plastic bottom. I can't open my box to see my
floppy power cable. If yours looks like the one in this photo, I guess
the answer is all here. The top has a single raised plastic rectangle.
The bottom has 5/so jutting plastic barbs, looks like.

Here's another one showing what it may look like at the motherboard...
http://www.playtool.com/pages/psuconnectors/connectors.html
All about the various PC power supply cables and connectors


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
Should things get worse after this,
PCR
pcrrcp@netzero.net