Question about Seagate FreeAgent Pro - 500GB, 7200 RPM, USB 2.0, eSATA, External 500 GB Hard Drive

1 Answer

Dead Freeagent 500GB Drive...

I unplugged/plugged-in my 1 year old Freeagent drive and it no longer turns on. I check voltage on the connector (12+dc), but the "drive-on" light won't come on. I can't find a switch, circuit breaker or fuse. Any suggestions? Thanks, ****

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  • gcanime Sep 29, 2008

    my Seagate FreeAgent Pro - 500GB stopped working. it doesnt power up. it was working fine yesterday and today it doesnt even open.

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I don't know which drives they use in Freeagent, or even how you open the case (don't remember seeing any screws on mine), but Seagate drives (baraccuda especially) are known to have a weakness with the diode between 12V and Ground.

If it seems like it's shorting, (put a meter across the power input before you bother opening it - if it's reading about 1 Ohm, this may be your issue) might be worth opening the case and checking for a small square surface-mount diode marked BUX C??? (? being a variable number). If it's shorted, then clip it out for a quick-and-dirty backup of your data & bin the drive, or fix with a suitable replacement diode (SMD 1N4004 has been suggested).

Posted on Sep 08, 2008

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1 Answer

Input voltage?


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her are some power Adapters listed on amazon. Also, look on the bottom to see what polarity it is (also by mosue over the picture of the adapter in the bottom link (to zoom in)

Amazon com Pwr Extra Long 6 5Ft Cord AC Adapter Charger for Seagate Hdd...


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Apr 28, 2016 | Seagate FreeAgent Pro - 500GB, 7200 RPM,...

1 Answer

My toshiba 1 Tb automatic backup portable drive won't power up


First you will need to check the AC adapter if there is DC power available. Use a DC voltmeter and put the black lead on the outer ring and red lead on the center pin of the connector that plugs into the external drive, Plug the AC adapter in the wall and see if you have voltage on the meter. Should be roughly 12 VDC. If you do not have voltage then the circuit board inside the external case is failed, if no voltage then replace the AC adapter. As a last resort out can disassemble the case and use the hard drive as an internal one.

Jun 03, 2014 | Computers & Internet

1 Answer

Computer wont start 2


First post,

http://www.fixya.com/support/t17361088-computer_wont_turn

Plus I have read all the other posts up to this one.

The difficult thing to do, when trying to guide someone over the internet I have found; is Communication.

Whose fault is it when miscommunication develops?
No one's.

We have to simply strive to get our points across.
Both the person with the problem, and the person providing the solution.

With all due respect sir, you are not understanding; and your solution providers do not seem to be picking up on this.

Shall we begin again, fresh?

This is going to be long. You may have to walk away, then come back, and read it again. I need your patience. I can tell you are intelligent.

The reason it will be so long, is;
A) I have to explain what EACH, and every cable is.
B) I have to explain basic precautions.
C) I have to try to put us both on the same 'playing field'.

This is what I do Mateo, and I love it.

Moving on..........

1) That P4 power cable you are referring to, is a 4-pin ATX +12 Volt power cable.
It provides power for the Processor.
Yes sir. NEEDS to be plugged in.

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

2) The other cable you reference to, is a SATA power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#sata

15 contact pins.
In comparison to a SATA data cable, it's connector is the larger of the two.
A SATA data cable connector has 7-pins,

http://en.wikipedia.org/wiki/File:SATA_ports.jpg

This particular SATA data cable's connector, has a 90 degree bent elbow.
This style of bent elbow connector, is used to plug into the back of a Harddrive, or optical drive. (CD/DVD drive)

NOT always the case, though. A straight connector style can be used. A straight connector end is used to plug into the motherboard.
Also note the L-shaped opening.
A SATA power cable connector, also has this L-shaped opening.

You will also see these types of power cables,

http://www.playtool.com/pages/psuconnectors/connectors.html#peripheral

4-pin Peripheral power cable.
Commonly known as a 'Molex' power cable. This is erroneous.
Molex was just the first company to make THAT connector.

Name stuck.
Kind of like calling an open-end adjustable wrench, a 'Crescent Wrench'

Those P1, P2, P3, P4, P5, etc, designations you see on the cable's connectors?

FORGET ABOUT THEM.
Doesn't mean squat to a tree.

WHAT, the power cables ARE, does.
Look at the connectors is how you find out.

Moving on............

I just saw you do something that could fry your computer out.
Power plugged into the computer, computer on, and your little hands IN the computer.

This = NO

The computer is Unplugged from power, BEFORE working on it.
ALSO,.....Anti-Static Procedures are followed.

Anti-Static Procedures:
Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.

RELIEVE your body of Static, BEFORE reaching inside your UNPLUGGED from power computer.

{Not 'shouting'. I am emphasizing}

Computer ON a table, computer Unplugged from power, computer case open;
TOUCH an unpainted surface, of the metal frame of the open computer case.

This action will relieve your body of Static.

IF, you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

Don't follow Anti-Static Procedures, and you can use your motherboard for a Frisbee.

(WHOA! Look at that THING go! ............whoops, sorry dog!)

You can also use the Processor for a neck trinket, and the Ram Memory for Christmas decorations.

Computer on, and unplug that 4-pin ATX +12 Volt power cable?

Good way to get a voltage spike, and fry stuff out.

Moving on.................

Primer;
1) If ALL of those LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor (CPU) can use 51 to 130 Watts of power.
Just depends on what Processor it is.

Point?
If you haven't caused a voltage spike, and fried stuff, and IF you have been following Anti-Static Precautions; just replace the Power Supply.

THAT, is your problem.

How do I know?
See what happens, when you plug the 4-pin ATX +12 Volt power cable in?
Power supply turns off.

That power cable is for the Processor. The hardware component that uses the most power.

Means your Power Supply has a weak voltage power rail.

Enough power to light those simpy LED's, and spin fans; but NOT enough power to turn the Processor on.

When diagnosing a desktop computer, the FIRST thing to check is the Power Supply.

MUST be known that it is good, BEFORE going on.

Before thinking about rushing out, and buying a replacement Power Supply, is there a working computer you can BORROW the Power Supply from?

Has to have the same case shape, and needed power cables.
Probably better have at least 250 Watts also.

Your Power Supply is an ATX form factor.

Size, and case shape of Power Supply, is;
Approximately 6 inches Wide.
Approx. 5 and 1/2 inches Long.
Approx. 3 and 1/2 inches Tall.

Plus the needed power cables. Look at your Power Supply now, and compare.

No?
Not feasible for you?

Got $5 to $12 bucks you can let go of?
Then purchase a multimeter.
Auto parts stores have them, but more expensive.
I have seen them on checkout aisle racks, in major discount stores.

(Big Lots, wally world, Kmart, etc)

Then I will step by step you through using the multimeter, and checking each voltage power rail.

Shock?
Your Power Supply (SMPS) is a Converter.
Converts the high AC electricity, in your home, or business; into
3 LOW DC Voltages.

(US = 120 Volts AC, Japan = 100 Volts AC, UK = 240 Volts AC, Australia = 240 Volts AC)

The 3 low DC voltages are;
A) 3.3 Volts
B) 5 Volts
C) 12 Volts

In comparison two D cell flashlight batteries produce 3 Volts DC.

ALL Orange wires are 3.3 Volts
ALL Red wires are 5 Volts
ALL Yellow wires are 12 Volts.

ALL Black wires are Ground wires.

This is a DC circuit.
The power wires listed above are Positive.
The Black wires are Negative.

I would like you to test the low DC voltages I stated,
OR,
Use a KNOWN to be good, Compatible power supply for a test unit.

This way you are not spending bucks for a Power Supply, and find out it MAY not be the problem; and be hatin' on me. lol!

Awaiting your reply,
Regards,
joecoolvette

http://en.wikipedia.org/wiki/Computer_power_supply#Wiring_diagrams

http://en.wikipedia.org/wiki/Computer_power_supply#Connectors

(ATX12V is a 4-pin ATX +12 Volt power cable)

Mar 27, 2013 | Computers & Internet

1 Answer

No lights high or low beam


First, check the fuse. There is one under the dash, and maybe one under the hood. If that is okay, unplug the connector to one of the headlights and check for voltage there (inside the connector). Should be in the 12-14 dc volt range. If nothing is there, its probably the light switch.

May 02, 2011 | 1992 Dodge Ram 250

1 Answer

A 37 inch insignia tv won't turn on after i plug my laptop for some music.then after unplugging my laptop it won't turn on.please give me best possible answer.( tv is about 2 years old)


This is the basic guide that can be applied to most LCD flat panel TV.

First, try unplugging it from the outlet for about an hour to see if the TV will reset itself since the minute the TV is plugged into the wall, the power supply and processor will be running 24/7 and the EPROM can get corrupted by spikes and surges. Try using good quality surge suppressor to see if it will help if it happen often.
Look for burnt brown hot spots on the circuit boards, capacitors with leaking/bulging top or seals. Loose wires and connectors. Blown fuses.
Notes: We are dealing with high voltage that can kill you! so if you are not sure what you are doing, please have it fixed by the pro that has proper tools and safety equipment. Try to use GFI outlet and isolation transformer when work around the TV set and DO NOT DEFEAT THE GROUND PIN OF THE OUTLET/POWER CORD.

1)The power supply module (There are 4 regulated output voltages:- Standby 5vdc, switched 5vdc, 12~16vdc, and 24vdc).

The power supply converts the 120/230vac 50/60Hz into DC, then the high frequency (50~100kHz) switching circuits convert it back to AC but at high frequency which allows the power supply to use smaller and much lighter weight transformers (Ferrite core instead of heavy iron core), then this high frequency AC voltage is fed to the rectifier Diodes to get the DC output and filtered by DC filter capacitors that must have low ESR (Equivalent Series Resistance), if general purpose electrolytic caps are use, they will fail within a year or less due to high ESR.

The power supply has Standby 5vdc (5VSB, this is a MUST have before anything else will work, when this voltage is not present, there will be no any indicator light on the front panel) which is always on the minute the TV is plugged into the AC outlet, so it is on 24/7 and that is why the power supply will fail even though you may use the a TV not very often. It will see all the voltage spikes and surges 24/7.
This 5vdc is used to power the Processor and the Infrared remote receiver module which will be waiting for the command from the remote control or from the power switch, when the Power on command is received, the Processor will send the turn on signal (3.3~5vdc) to the power supply module (PSON pin) to the switch on the main 5vdc for the rest of the logic and Tuner circuits, 12~16vdc for the sound amplifiers (mostly Class D amplifier for efficiency and small size) and for the T-CON board (interface board between the LCD panel and the Logic board), and 24vdc for the Back lights inverter board (if there is no 24vdc then no back light).
Common failures:
Blown main AC fuse due to shorted out Diodes, transistors.
Bad capacitors leaking or bulging tops:
Shorted Diodes, transistors in the DC output side.

Jan 31, 2011 | Insignia NS-LCD37 37 in. LCD TV

1 Answer

No blue power light and doesnt turn all the way on no starting beep gateway gt5220


I would suspect a bad power supply. Before doing anything make sure power is actually getting to the computer. Check the power cord with a volt meter. You should have around 115 volts. If all is well you need to see if the power supply is putting out the correct voltage. Open the PC up and set the multimeter to DC voltage.
  1. Turn off the PC, but do not unplug it. Open the system unit. Set the multimeter to read DC volts in the next range higher than 12 volts. Locate a power connector similar to the hard drive (or CD-ROM drive connector that is unused) and turn on the PC.
  2. You can also unplug a drive connector and use it. Turn on the PC and insert the BLACK probe into the power connector on one of the BLACK wires. Touch the RED probe to the YELLOW wire on the power connector.
  3. The multimeter reading should be +12 volts. Now touch the RED probe to the RED wire and the reading should be +5 volts. If no readings or different readings occurred, you’ll have to replace the power supply. If the readings were correct, you should check the P8 or P9 connectors at the motherboard. These connectors may also be named P4 and P5. To check these connectors, perform the following:
    • Insert the BLACK probe into P8 at one of the BLACK wires. Insert the RED probe into the P8 connector at the RED wire. The reading on the multimeter should be +5 volts.
    • Check the power going to the motherboard connections by inserting the RED probe into P8 at the YELLOW wire and you should get +12 volts. Leave the BLACK wire touching the BLACK wire at the P8 connector. Check the BLUE wire and the reading should be a -12 volts.
    • Now move the BLACK probe to the BLACK wire on the P9 connector. Test the WHITE wire by inserting the RED probe and the reading should be -5 volts. Check the RED wires on the P9 connector and you should get +5 volts on each red wire. You won’t get exactly 5 or 12 volts, but the readings will be very close, such as 5.02 volts.
    • If the Power Supply is a couple of volts off in either direction, such as when the RED wire should be reading -5 volts but it reads -8 volts, or if there are no readings, replace the power supply. Curtorsey: IT Professionals

Mar 09, 2010 | Gateway GT5220 PC Desktop

1 Answer

Error message 993, what is this?


that is a fuser drive error on printers. it is the part that fixes the ink to the paper.
i have a check for you but is not an easy fix.
if fuser drive is gone will cost approx £12 to replace.

Fuser Drive and Contact Cam System Service Check
Error Code 993: Indicates the cam sensor has not been activated.
The sensor activates when the fuser drive motor turns the cam disk.
If the fuser drive motor does not turn on, or the drive parts are not
operating, go to A.
If the fuser drive motor turns and appears to be operating properly,
and the cam is turning, go to B.
If the fuser drive motor turns and appears to be operating properly,
and the cam is not turning, go to C.

A The fuser drive system is not operating properly.
FRU Action
1 Fuser Assembly
Fuser Drive Motor
Fuser Motor/Paper
Feed Motor Carriage
Unit Motor Cable
Engine Board
Check the fuser assembly internal drive gears
for binding, or broken or worn teeth. If a
problem exists, repair or replace the fuser
assembly.
Remove the fuser drive motor from the stay
assembly, leaving the motor cable connected
to the motor. Turn the printer on, but do not
allow the motor to touch other areas of the
printer. Verify the motor turns during POR. If it
does, the problem is most likely in the motor
mounting stay assembly. Go to step 2.
Check the motor for shorts between the case
and each motor winding. If a short is found,
replace the motor.
Note: Damage to the engine board may result
from a shorted motor.
Check the motor for open windings. If found,
replace the motor.
Check continuity of the fuser motor/paper feed
motor/carriage unit motor cable.
• If incorrect, replace the cable.
• If correct, replace the engine board.
2 Motor Mounting Stay
Assembly
(Fuser Drive Parts)
Check the fuser drive gears, gears C3-1, C3-
2, the clutch spring, motor drive gear, gear C2
and C4 for signs of chipped gear teeth, worn
parts, or improper operation. If problems are
found, repair as necessary.
Check the cam gears and solenoid for proper
operation and signs of broken or worn gear
teeth or damaged parts. If found, repair or
replace the motor mounting stay assembly.

B The fuser drive system is operating properly and the cam disk is
turning.
FRU Action
1 Cam Sensor (PH16)
Engine Board (M4)
SN Cable
Be sure the cam sensor is mounted correctly
and locked into place.
Check the following voltages on the cam
sensor:
Pin # Signal Voltage Voltage
Voltage Disc in Disc Out
1 (Orange) +5 V dc +5 V dc +5 V dc
2 (Brown) -CCSENS +5 V dc 0 V dc
3 (Green) GND 0 V dc 0 V dc
Note: The voltage on pin 2 should vary, as the
cam turns from approximately 0 V to +5 V dc.
• If the voltage on Pin 1 is incorrect, check
the cable. If incorrect, replace the cable.
• If the cable is good, replace the following
FRU's in the order shown:
1.Cam sensor
2.Engine board
3.SN cable

C The fuser drive system is operating properly and the cam disk is
not turning.
FRU Action
1 ContactCam
Solenoid
CRF Cable
Engine Board
Check the solenoid for proper operation,
making sure it picks during POR cycle.
Disconnect the solenoid and check the
resistance on the solenoid cable. It should
measure approximately 65 ohms. If incorrect,
replace the solenoid.
Check the voltages on the solenoid cable
connector.
Check the following voltages on the contact
cam solenoid cable connector:
Pin # Signal Voltage Voltage
Voltage Static Picked
1 (Red) +24 V dc +24 V dc +24 V dc
2 (Black) -SL2ON +24 V dc 0 V - +24 V dc
Note: All voltages are approximate.
If the voltage on Pin 1 is incorrect, check
continuity of the CRF cable to the cam
solenoid.
• If incorrect, replace the cable.
• If correct, replace the engine board.
2 Motor Mounting Stay
Assembly
Check the clutch spring, clutch boss, clutch
disk and gear C4 for signs of wear, broken
teeth or binds. Repair or replace the motor
mounting stay assembly if a problem is found.

Normaly the fuser is not turning - check the cleaner pad is not jammed in too tight. Then replace the fuser drive block 12G1348.

Feb 25, 2009 | Ricoh Aficio GX3050N Printer

1 Answer

Gx3050n error code 993 what is this?


that is a fuser drive error on printers. it is the part that fixes the ink to the paper.
i have a check for you but is not an easy fix.
if fuser drive is gone will cost approx £12 to replace.

Fuser Drive and Contact Cam System Service Check
Error Code 993: Indicates the cam sensor has not been activated.
The sensor activates when the fuser drive motor turns the cam disk.
If the fuser drive motor does not turn on, or the drive parts are not
operating, go to A.
If the fuser drive motor turns and appears to be operating properly,
and the cam is turning, go to B.
If the fuser drive motor turns and appears to be operating properly,
and the cam is not turning, go to C.

A The fuser drive system is not operating properly.
FRU Action
1 Fuser Assembly
Fuser Drive Motor
Fuser Motor/Paper
Feed Motor Carriage
Unit Motor Cable
Engine Board
Check the fuser assembly internal drive gears
for binding, or broken or worn teeth. If a
problem exists, repair or replace the fuser
assembly.
Remove the fuser drive motor from the stay
assembly, leaving the motor cable connected
to the motor. Turn the printer on, but do not
allow the motor to touch other areas of the
printer. Verify the motor turns during POR. If it
does, the problem is most likely in the motor
mounting stay assembly. Go to step 2.
Check the motor for shorts between the case
and each motor winding. If a short is found,
replace the motor.
Note: Damage to the engine board may result
from a shorted motor.
Check the motor for open windings. If found,
replace the motor.
Check continuity of the fuser motor/paper feed
motor/carriage unit motor cable.
• If incorrect, replace the cable.
• If correct, replace the engine board.
2 Motor Mounting Stay
Assembly
(Fuser Drive Parts)
Check the fuser drive gears, gears C3-1, C3-
2, the clutch spring, motor drive gear, gear C2
and C4 for signs of chipped gear teeth, worn
parts, or improper operation. If problems are
found, repair as necessary.
Check the cam gears and solenoid for proper
operation and signs of broken or worn gear
teeth or damaged parts. If found, repair or
replace the motor mounting stay assembly.

B The fuser drive system is operating properly and the cam disk is
turning.
FRU Action
1 Cam Sensor (PH16)
Engine Board (M4)
SN Cable
Be sure the cam sensor is mounted correctly
and locked into place.
Check the following voltages on the cam
sensor:
Pin # Signal Voltage Voltage
Voltage Disc in Disc Out
1 (Orange) +5 V dc +5 V dc +5 V dc
2 (Brown) -CCSENS +5 V dc 0 V dc
3 (Green) GND 0 V dc 0 V dc
Note: The voltage on pin 2 should vary, as the
cam turns from approximately 0 V to +5 V dc.
• If the voltage on Pin 1 is incorrect, check
the cable. If incorrect, replace the cable.
• If the cable is good, replace the following
FRU's in the order shown:
1.Cam sensor
2.Engine board
3.SN cable

C The fuser drive system is operating properly and the cam disk is
not turning.
FRU Action
1 ContactCam
Solenoid
CRF Cable
Engine Board
Check the solenoid for proper operation,
making sure it picks during POR cycle.
Disconnect the solenoid and check the
resistance on the solenoid cable. It should
measure approximately 65 ohms. If incorrect,
replace the solenoid.
Check the voltages on the solenoid cable
connector.
Check the following voltages on the contact
cam solenoid cable connector:
Pin # Signal Voltage Voltage
Voltage Static Picked
1 (Red) +24 V dc +24 V dc +24 V dc
2 (Black) -SL2ON +24 V dc 0 V - +24 V dc
Note: All voltages are approximate.
If the voltage on Pin 1 is incorrect, check
continuity of the CRF cable to the cam
solenoid.
• If incorrect, replace the cable.
• If correct, replace the engine board.
2 Motor Mounting Stay
Assembly
Check the clutch spring, clutch boss, clutch
disk and gear C4 for signs of wear, broken
teeth or binds. Repair or replace the motor
mounting stay assembly if a problem is found.

Normaly the fuser is not turning - check the cleaner pad is not jammed in too tight. Then replace the fuser drive block 12G1348.


Feb 25, 2009 | Ricoh Aficio CL1000N Printer

2 Answers

2003 honda gl 1800 goldwing


1. CHECK THE MAIN FUSEAND FI INGN FUSE IF OK THEN GO TO 2.
2. MAKE SURE ENGINE STOP SWITCH IS NOT ON.
3.MAKE SURE THAT FI RELAY IS CLOSING. TURN ON KEY SWITCH AND THE FI LIGHT SHOULD COME ON. THEN CHECK TO SEE IF 12VOLTS IS AT RED/WHITE WIRE COMING FROM RELAY ( RELAY IS UNDER THE SEAT)
NOW IF THIS SO YOU SHOULD HAVE SPARK AT THE PLUGS. IF NOT SOMETHING IS SHORTING THE ENGINE CONTROL MODULE. MAKE SURE THE BIKE IS IN NEUTRAL
AND THE IGNITION PULSE GENERATOR IS GOOD

Feb 12, 2009 | 2003 Honda GL 1800 Gold Wing

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