Question about Mitsumi (D359M3 SILVER) Internal Floppy Drive

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I need to know the voltage of Mutsumi D359M3D floppy and where?

I need the connection points to the Power Source?

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Looking from the back of the connector (from where the wires are inserted) it reads from left to right as 12V yellow, then both blacks, then 5V red. Do not know if the blacks are isolated grounds. The wires tend to fall out so never pull wiring.

Posted on Jun 30, 2009

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The power cable connector to the drive has 1 red (5v DC), 1 yellow (12v DC) and 2 black (common center or negative) wires feeding the required voltages from the main power supply source. The power connector will only go on one way. I hope this helps.

Posted on Apr 09, 2009

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Older unit probably late 80s or 90s worked good until recently. will not turn on.


Really need to know what equipment you're having trouble with. Provide make and model and info on power source (battery, DC power supply...)
In general though, if you can sample your input voltage near the unit with it still plugged in (use pointed probes or skin back wire insulation) and see what the voltage is with the unit turned on. If it drops when you turn it on, look for a bad connection in the line going to the source.

Mar 24, 2015 | Boating

1 Answer

The stand by button is flashing and wont turn on


1. take out from supply ,by take out power cord from outlet
2 reconnect power suplly and switch on,manually if needed, and then do hard reset,as is written in factory manual ( turn back to factory settings)
3 if that not help ,disconnect last connected device,or all and try again
4 check one more time power line voltage on outlet, , voltage selector on back plate on device, and for test purpose only connect ur AV Receiver plug directlly to outlet,without any extension cords with other outlets or devices on them ,as that can be source of problem ,too.(power,or voltage drop bellow point that is needed for this power drawing device to be switched on)
5 also disconnect for test purpose dig coax,and or antenna inputs..best is to disconnect all,and connect in directlly to power line outlet,and then to try hard reset to factory settings.

Sep 11, 2012 | Pioneer VSX-D912 Receiver

1 Answer

Can't save radio stations, have to tune the radio everytime I turn the car on. It doesnt work if you hold the numbers down. Can you help?


A common error wiring an after-market car stereo is where to connect the BATTERY and ACCESSORY wires. Under most conditions, these two wires do NOT get connected to the same point. The BATTERY wire connects to, well, the 12 volt positive terminal of the battery (or any 12 + volt source that is ALWAYS powered). This allows the radio clock to keep time and maintain the radio station presets when the vehicle is off / key is removed.

The ACCESSORY wire is connected to a point in the vehicle's electrical system that has 12 volts + whenever the ignition key is turned to the Run or Acessory position. When the key is NOT in these positions, the point should go from 12 volts + to 0. This change tells the radio to turn on or off, depending on the key position. The radio will power down when the key is removed, so you do not need to manually shut the radio off. This can save the battery if the radio volume was very low. The ONLY time you would accept both of these wires to be connected to the same point is when they are BOTH connected to the 12 volt + terminal of a battery (or wire that is always powered). If you wire this way, you will have to tune the power on and off each time you want to listen to the radio.

Check you manual for color or lable of these two wires, and place them as needed for the desired operation 1) Both on a constant 12 volt + source, or 2) BATT to a constant 12 volt + source and ACC to switched 12 volt + source.

I hope this helps. Please rate my reply with "4 thumbs up" if it did. Thanks!

Usually, purchase of a wiring harness designed specifically for your vehicle model and stereo solves this problem - as the required voltages and signals - including speakers - are made up and it is simply a "plug and play" operation. Newer cars will often require a "magic box" if you will, that uses some data signals in the car to turn on and off voltages for the stereo. Not installing the "magic box" will prevent much of the radio from working and can cause the loss of chimes, etc.

If your vehicle doesn't require the magic box

Aug 01, 2011 | Panasonic Car radio CD CQ-C1110GN CD...

1 Answer

No power to fuel pump. replaced relay still nothing


You need to trace the power source, and not only the relay. Check the voltage of cable/contact points of relay while your turn on ignition. If you don't have a voltage tester, you can use the bulb to verify the presence of power.

Nov 03, 2010 | 1997 Acura RL

1 Answer

Not working no lights coming on front panel ,i striped it put new paddles in it , plumbed it in turned it on nothing was working before striping it


When everything does'nt work the problem is usually esier to solve..it implies a faulty power source.

The fault may lie internal or external to machine. To rule out external machine fault try to use some other appliance on the same plug point if it works we know the probles lies within the machine.

If the problem lies within the machine, unplug power source and open the machine.determine where the power cable terminates within the machine. We are now going to check for breakages in the powe cable (that connect the machine to power source) You will require a multimeter. With the multimeter placed on continuity mode check for continuity between the plug point and internal terminating point, you need to perform the continuity test for both live and neutral in unplugged mode.

Next if the fault is ruled out in the cable the fault most certainly lies in the SMPS to check this we need to take a few precautions and carefully observe the power input and output points on the washing machines SMPS (Switch Mode PowerSupply) older machines use a transformer but it all boils down to correctly determining the input and output terminals.

Now with the multimeter in Volt meter mode(AC), carfully power the machine through AC Mains, ensure that the ground and machine are not damp (wet) without having physical contact with the machine you need to test the voltage across the input terminals (this should read around 110 to 220 (AC)Volts depending on the standards of your country) then check the voltage off the input terminals this should read between 20 and 80 Volts DC.

In most cases with your typical problem mentioned you will fail to receive an output voltage at this stage and can conclude that the SMPS is faulty.

If the SMPS is faulty you'd simply have to change it , in some cases though these have detachable fuses which blow off. In the lastter case you can try a fuse rep[placement.
This should solve your problem.

Jul 09, 2009 | Washing Machines

1 Answer

My whirlpool electric dryer will not heat up.


there are a few things to check out,< the outlet to unit needs to be tested for voltage on both sides, the power cord needs to be checked with a multi meter on ohm selection from end to end, the connection from power cord to power point,"junction", needs to be checked," looking at it you can tell if there is damage". If you find that everything is ok on power end then element is most likely problem. the power test is important because with 220 power source it is split into 110 for timer and motor and 110 for element operation, " if one side doesn't have voltage then it will not operate.

Apr 26, 2009 | Whirlpool Dryers

1 Answer

There is a white cable fixed to the drive that appears to have


The 7 pin connector is for the media card readers and needs to be plugged into a USB header on your motherboard. Not all motherboards have this header, so consult your motherboard manual. You may have to connect it in place of front USB connectors on your PC case.

The card reader will work without a separate power connection. The power connection is for the floppy drive only, and IS required for the drive to work. You should be able to find the appropriate connector on your power supply.

Nov 20, 2008 | BYTECC (BT144) External Floppy Drive

3 Answers

Won't turn off or on automatically


You must have the yellow and the red wires tied together on a constant voltage source.

Only the yellow wire should be on a constant voltage source.

The red wire should only get voltage when the ignition is turned on or in the acc. position.

You need to rewire the red wire on the radio.

Let me know if it helps.

Jun 07, 2008 | Kenwood KDC-MP4028 CD Player

1 Answer

Driver for an external compaq floppy drive


Am not familiar with the model but Compaq would be your best source...support and downloads....if not, and you will need to poke around.....there is an absolutely phenomenal free driver site in Russia that has (personal opinion) virtually every driver ever made in every version. All free. You can also try the add/remove hardware auto detect and point it to Microsoft...you might get lucky. The only other solution is to query the internet with your model number and the words driver behind it. Hope this helps....Tango.

Jan 24, 2008 | Computers & Internet

1 Answer

Wiring diagram


Red: voltage source controlled by the ignition key Yellow: constant voltage source Black: ground Blue: power antenna activation wire (if equipped) Blue/white: amplifier activation wire (if equipped)

Jun 06, 2007 | Alpine TDA-7563 Cassette Player

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