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Author Topic: Dim Drive Light  (Read 8071 times)

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Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #44 from previous page: May 19, 2010, 03:56:09 PM »
Okay, how do these voltages sound:

Pin 1 (+5 volts): 5.16 volts
Pin 3 (+12 volts): 12.19 volts
Pin 5: (-12 volts): -11.97 volts

All of these voltages sound good except Pin 5 seems a bit low.

No humming either! Before I must have shorted the pins against the ground container shield. Hmm.. sounds like a great way to mess up my psu. I know a little more than before as I have been reading up.
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Offline save2600

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Re: Dim Drive Light
« Reply #45 on: May 19, 2010, 04:20:17 PM »
Those values are all good. Nothing wrong with the -12 line, well within spec. Oh, okay... I thought a while back you said the PS was humming - that's why I freaked out and said to not plug into the Miggy  :)  

You should be all set. Amperage is another value you can check for if you ever suspect something funky - but I bet your PS is fine. Good luck!
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Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #46 on: May 19, 2010, 04:26:46 PM »
I did say it was humming, but that turned out to be because of the way I was testing it (laying probes against pins instead of on top of I think I made contact with the grounded shield.) I guess I'll just have to open up the amiga and snoop around in there. I'll do some continuity checks. That audible buzzer is a really nice thing to have. My multimeter doesn't do amperage so I can't check that.
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Boy: I\'m scared...
 
Man: Hah! What have you got to be afraid of? I\'m the one that\'s going to be coming back alone!
 

Offline ElPolloDiabl

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Re: Dim Drive Light
« Reply #47 on: May 19, 2010, 04:56:37 PM »
It sounds like something is taking a lot of power. Perhaps your floppy drive is clogged with dust. Otherwise a component could be on the way out.
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Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #48 on: May 19, 2010, 05:53:40 PM »
By the way, I can't fry a circuit or something with the continuity check can I? It uses a marginal amount of voltage but still, I want to be careful. Because well checking around some resistors, I heard the continuity buzzer (buzzes when there is continuity or a lack of resistance) go off and then slowly die out. I have some compressed air. I'll try that in the disk drive.

EDIT: Nope no dust in the floppy drive
« Last Edit: May 19, 2010, 05:57:38 PM by Super TWiT »
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Man: Hah! What have you got to be afraid of? I\'m the one that\'s going to be coming back alone!
 

Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #49 on: May 19, 2010, 06:25:26 PM »
I can't test the cables too much, because I found out my test probes are too large to fit in the pin holes:angry: I guess I'll go down to radioshack and see if they can help me....
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Once there was a man and a boy in the woods.
 
Boy: I\'m scared...
 
Man: Hah! What have you got to be afraid of? I\'m the one that\'s going to be coming back alone!
 

Offline save2600

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Re: Dim Drive Light
« Reply #50 on: May 19, 2010, 06:36:42 PM »
You never test for continuity with the power on to the device. Voltage yes, continuity no.
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Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #51 on: May 19, 2010, 06:58:28 PM »
Yeah, I know. I have the amiga unplugged. I just wondered if the voltage used for the continuity check could damage anything. You can't test anything resistance related with power going to the circuit.
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Once there was a man and a boy in the woods.
 
Boy: I\'m scared...
 
Man: Hah! What have you got to be afraid of? I\'m the one that\'s going to be coming back alone!
 

Offline save2600

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Re: Dim Drive Light
« Reply #52 on: May 19, 2010, 07:10:22 PM »
Quote from: Super TWiT;559586
Yeah, I know. I have the amiga unplugged. I just wondered if the voltage used for the continuity check could damage anything. You can't test anything resistance related with power going to the circuit.

Ahh, I see. Your hunch is correct - the minute electricity coming from the leads of a DMM isn't going to hurt a TTL or CMOS circuit. Only really sensitive alien technology, like those from abductee's implants, will it might hurt.  lol
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Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #53 on: May 20, 2010, 03:33:40 PM »
I can't seem to find any smaller test probes. The ends of them are just too big to fit in the pin slots. Do they sell smaller ones?

EDIT: Can I use electrical tape and tape like needles or something to the ends of the probes?
« Last Edit: May 20, 2010, 04:16:08 PM by Super TWiT »
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Once there was a man and a boy in the woods.
 
Boy: I\'m scared...
 
Man: Hah! What have you got to be afraid of? I\'m the one that\'s going to be coming back alone!
 

Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #54 on: May 21, 2010, 02:57:52 AM »
Well, I tested my floppy power cable and no shorts as confirmed by a continuity test. After that, I thought maybe the cables were just loose before so I should try plugging everything back in before checking anything else. Now, the drive light is on the second I power on the machine, and it stays on. I get to a workbench disk request screen, but when I put the disk in the screen stays white, the drive led remains on, and the floppy drive does not spin up. I know the cables aren't backwards because they are keyed, and I took pictures before unplugging them so I could observe polarity. The pictures match too. Do I have a bum drive or cable?
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Once there was a man and a boy in the woods.
 
Boy: I\'m scared...
 
Man: Hah! What have you got to be afraid of? I\'m the one that\'s going to be coming back alone!
 

Offline ElPolloDiabl

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Re: Dim Drive Light
« Reply #55 on: May 21, 2010, 03:55:22 AM »
It sounds like the floppy drive motor. You'll need a new floppy drive.
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Offline Super TWiTTopic starter

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Re: Dim Drive Light
« Reply #56 on: May 21, 2010, 07:08:02 PM »
Great news everybody! The drive isn't dead, the data cable was just loose on the motherboard. And no more dim drive light! Thanks everybody for helping me out. I learned a lot.
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Once there was a man and a boy in the woods.
 
Boy: I\'m scared...
 
Man: Hah! What have you got to be afraid of? I\'m the one that\'s going to be coming back alone!
 

Offline save2600

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Re: Dim Drive Light
« Reply #57 on: May 21, 2010, 07:09:18 PM »
Quote from: Super TWiT;559992
Great news everybody! The drive isn't dead, the data cable was just loose on the motherboard. And no more dim drive light! Thanks everybody for helping me out. I learned a lot.

Congrats, you are now a certified electronics technician! :lol:   j/k
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Offline tone007

Re: Dim Drive Light
« Reply #58 on: May 22, 2010, 01:01:53 AM »
Glad to hear nothing got fried along the way, there were a couple of scares!
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