Question about Lenovo G550-29583AU Notebook

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When i switch on my laptop, i see that ll the 4 LEDs are glowing initially, but the LED that seems to have the DISC image next to it goes low after a while and nothing seems to happen after that. At no point in time, i see anything on the Screen, Is this a Hard Disc failure?

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In this cae, it might be, but to make sure, pls turn off laptop. Remove cables and battery then press and hold power button for 8 secs. Reinsert cables and battery then turn on pc. If same happens, that is a hard disc failure. Consult lenovo for possible repair...

Posted on Aug 08, 2010

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8560 printer shut itself down and will not true back on


The following lists the chain of events that occur when you turn on a printer. You can follow this list as one means of determining if the printer is operating correctly. The exact chain of events depends upon the last power down condition and where the printer has last determined the printhead is positioned, this is stored in non-volatile RAM. The Checklist is the primary reference for troubleshooting power-up problems.

1. Power cord is plugged in and the power switch is turned on:

2. Power supply senses AC line voltage conditions (110 VAC or 220 VAC)

and enables DC voltages. If an overload occurs, the printer turns off the high voltage DC supplies, causing a "blink" effect on the Control Panel LEDs.

3. BIST test flashes the PE LED very briefly at a fast rate until the end of the

next test.

4. The Boot loader performs CPU initialization and RAM test. It then sends

the boot loader version to the serial port.

5. Power-On Self Test (POST) initializes the Control Panel. The Control

Panel LED turns red, green, orange, and then off. The Control Panel LCD then goes black and then clear. The POST version displays on the LCD

and waits two seconds. During this time the operator can press the Back

button to bypass the remaining POST test.

6. Low level Power-On Self Test (POST) diagnostics are performed. The

Control Panel displays status messages as each sub-test is performed.

This test takes about 8 seconds. All LEDs are off during the test.

If POST diagnostics pass, the Control Panel displays the Xerox logo and turns on the green LED.

If the test detects an error, the error message displays on the LCD and the printer flashes the LEDs with a repeating error code pattern.

7. The VxWorks operating system is initialized and engine code is started.

This takes about 15 seconds. The Xerox logo is displayed.

8. Print Engine Self Test (PEST) diagnostics are then performed. These test

the heaters, clutches, motors and solenoids. As each clutch is tested, you hear clicking with four high tones as each motor is tested. This test takes about 30 seconds.

9. The printer now runs the mechanical initialization. The exact sequence
depends on the initial position of the printhead and wiper assembly.

Feb 28, 2014 | Xerox Phaser 8560MFP Laser Printer

1 Answer

8560 shut down and will not turn back on


The following lists the chain of events that occur when you turn on a printer.

You can follow this list as one means of determining if the printer is operating correctly. The exact chain of events depends upon the last power down condition and where the printer has last determined the printhead is positioned, this is stored in non-volatile RAM.


1. Power cord is plugged in and the power switch is turned on:

2. Power supply senses AC line voltage conditions (110 VAC or 220 VAC)

and enables DC voltages. If an overload occurs, the printer turns off the high voltage DC supplies, causing a "blink" effect on the Control Panel LEDs.

3. BIST test flashes the PE LED very briefly at a fast rate until the end of the

next test.

4. The Boot loader performs CPU initialization and RAM test. It then sends

the boot loader version to the serial port.

5. Power-On Self Test (POST) initializes the Control Panel. The Control

Panel LED turns red, green, orange, and then off. The Control Panel LCD then goes black and then clear. The POST version displays on the LCD and waits two seconds.

During this time the operator can press the Back button to bypass the remaining POST test.




6. Low level Power-On Self Test (POST) diagnostics are performed. The



Control Panel displays status messages as each sub-test is performed. This test takes about 8 seconds. All LEDs are off during the test. If POST diagnostics pass, the Control Panel displays the Xerox logo and turns on the green LED.

If the test detects an error, the error message displays on the LCD and the printer flashes the LEDs with a repeating error code pattern.

7. The VxWorks operating system is initialized and engine code is started.

This takes about 15 seconds. The Xerox logo is displayed.

8. Print Engine Self Test (PEST) diagnostics are then performed. These test

the heaters, clutches, motors and solenoids. As each clutch is tested, you hear clicking with four high tones as each motor is tested. This test takes about 30 seconds.




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1 Answer

After initialing two red leds on control pannel glows


Need to clarify on what was seen as the LED glow, it can be that the power supply is coming ON but the processor refuses to switch on.Need to check on the processor and controller section.

Nov 30, 2011 | Office Equipment & Supplies

1 Answer

Reset counter


By the way, what is the make and model of your printer?

  1. Resetting the Drum Page Counter
    • 1 reset-counter-dell-laser-printer-1.1-800x800.jpg Toggle switch in back of the printer. Shut off the printer.
    • 2 reset-counter-dell-laser-printer-1.2-800x800.jpg Front door opened Hold down the "Continue" button while opening the front door. Then turn on the printer.
    • 3 reset-counter-dell-laser-printer-1.3-800x800.jpg Error LED lit Keep the Continue button held down until only the "Error LED" is on then release the button. Close the door.
    • 4 reset-counter-dell-laser-printer-1.4-800x800.jpg Top 3 LEDs lit. The Continue button, Ready/Data, Toner Low, and Load Paper LEDs should all be lit up.
    • 5 reset-counter-dell-laser-printer-1.5-800x800.jpg Toner low LED lit. Press "Cancel" a few times to cycle through the LEDs until just the "Toner Low LED" is lit.
    • 6 Press and hold the "Continue" button until the LEDs cycle through and release only when the LED stops at Toner Low.
    • 7 Turn the printer off and back on.

I hope you find it very helpful. Best regards.

Aug 16, 2011 | Office Equipment & Supplies

3 Answers

When i turn on my hp the screen stays blank and there is no pic screen seems dead the lock a button is also flashing is this normal


hi,

nope this is not normal. I have a article included below from hp. read this and you will understand the problem and also some ways on how to fix it. The blinking lights is a code on where the system fail or what component that fails.

Hope this helps you.
Don't forget to rate me OK!
Thanks for using Fixya!

regards,
John

HP Black screen error codes

Support details

This document pertains to HP Notebook PCs with the HP Unified Extensible Firmware Interface (UEFI) beginning in late-2008.
On startup, you may see a blank screen. If the diagnostic utilities detect a specific problem with hardware components, the fan turns on, but the screen remains blank. To help identify the cause of the problem, various LED lights on the keyboard blink a series of codes.
The diagnostic utilities use the LEDs near the Num Lock or Caps Lock keys to blink a series of error codes. At the end of the series the blinking stops. The pattern of blinks will occur any time you attempt to start the computer until the error is resolved.

Battery power LED blinks

The Battery power LED indicates the condition of the power supply. When starting the computer, or when the computer is in operation, use the chart to identify the power condition.

Battery low charge or failure
Battery power LED blinking Battery Insufficient charge on the battery

LEDs near Caps Lock and Number Lock keys blink when starting notebook
The LED lights near the Caps Lock and Num Lock keys will blink if an error is detected during the start up process. The LEDs will blink a number of times in a sequence and then stop. The number of blinks in the sequence indicates what component caused an error when it was being tested during start up.

If the LEDs stop blinking and the computer does not start, you can press the power button again to repeat the tests. Count the number of blinks, and use the chart to identify the error condition.
Knowing the number of blinks is helpful when you contact an HP support agent for technical help.
Caps Lock/Num Lock LED Component Tested Error Condition

LEDs blink 1 time CPU CPU not functional
LEDs blink 2 times BIOS BIOS corruption failure
LEDs blink 3 times Memory Module error not functional
LEDs blink 4 times Graphics Graphics controller not functional
LEDs blink 5 times System board General system board failure
LEDs blink 6 times BIOS BIOS authentication failure

Error code explanations
The sections below provide some common explanations for each error code listed in the table above.

AC Adapter not connected or battery low charge
When the computer is on battery power only and the AC adapter is disconnected, if the Battery Power and Caps Lock / Number Lock LEDs do not glow, there is either a very low change or no charge in the battery. Connect the AC power adapter, verify that the battery power LED glows, allow the battery to charge for 15 - 30 minutes and then attempt to start the computer. If it starts, run the battery test and calibrate the battery. If it does not start, if possible, connect a replacement battery to verify that the battery is the problem.

If the computer does not start after charging the battery, remove the battery and connect the AC power supply. Verify that the battery power LED glows, and then attempt to start the computer. If the LED still does not glow, either the AC adapter has failed, or there is a bad connection between the adapter and the system board. If possible, connect a different AC power adapter to verify that the adapter is the problem, or contact HP for support which may require a service event.
showhide
Insufficient charge on the battery
If the battery light LED (which looks like a lightning bolt ) flashes, the battery has insufficient charge to start the computer. To resolve this error, try the following solutions.

*
Connect the notebook PC to AC power and attempt to start the computer again.
o
Check the AC adapter to confirm that all of the plugs are securely seated.
o
Determine if the power LED on the AC adapter is lit (if available) to verify that the computer is receiving AC power from the wall outlet.
*
If the computer operates on AC power correctly, charge the battery for thirty minutes to one hour and then restart the computer.
NOTE: Charging the battery for this length of time is called "trickle charging". Trickle charging is a continuous constant-current charge at a low rate, which recharges the battery slowly when it is in a deep discharge state. Deep discharge occurs when a battery is left unused for extended periods of time.

The computer processor (Blink code 1) has stopped functioning properly. Contact HP for assistance.

BIOS corruption failure
If a BIOS corruption error occurs (Blink code 2), you may not even notice the blink codes, because as soon as the computer recognizes the error, it restarts, attempts to recover the BIOS, and then restarts again. You may notice an extra-long startup process as a result, and a message indicating that the BIOS has been recovered may display on startup. If this occurs, update the BIOS on the computer. For more information, refer to the HP Notebook PCs - Locate and Install Updated BIOS, Drivers, and Software .

Module error not functional
If you experience a memory failure (Blink code 3), follow the guide in the table below.
If Using Original Memory If New Memory Is Added
Reseat the memory.

If reseating the memory does not resolve the problem, try replacing the memory with new memory. Reseat the memory.

If you continue to experience this error code after reseating the memory, the problem may be with the memory itself. Take the new memory out of the computer, put the original memory back into the computer, and then retest it.

If you do not feel comfortable reseating the memory yourself, take the computer to a computer retailer and ask them to reseat it for you.
NOTE: Some memory module errors may allow the computer to start but will then cause the computer to restart and display a blinking error code.

Graphics controller not functional
If you experience a graphics controller failure (Blink code 4), contact HP for assistance.

General system board failure
A general system board failure (Blink code 5) is the failure of a component not covered by the other LED error codes. Contact HP for assistance.

BIOS authentication failure
The BIOS authentication error (Blink code 6) is extremely rare. It is the result of a discrepancy between the BIOS and the hardware that is installed on the computer. This error occurs when the BIOS cannot authenticate signatures from the hardware on the system. The purpose of the BIOS authentication is to be sure that no one has tampered with the BIOS on the computer.
If a BIOS authentication failure occurs, the computer automatically performs a BIOS recovery. If the computer does not automatically recover the BIOS, manually perform a BIOS recovery. To manually perform a BIOS recovery, press all four arrow keys at the same time to cause the BIOS to go to the EFI partition to find and recover the current BIOS.

Jan 17, 2011 | HP Compaq nc6220 Notebook

1 Answer

My motherboard have four leds in red light, d0 dled2,dled3 and don`t start up


Hi ntamayo,

Here is the description of what the four leds indicate:

d9c5d26.gifSystem Power ON-The D-LED will hang here if the processor is damaged or not installed properly.

1d08ad7.gifEarly Chipset Initialization


14ff182.gifMemory Detection Test
- Testing onboard memory size. The D-LED will hang if the memory module is damaged or not installed properly

1719312.gifDecompressing BIOS image to RAM for fast booting

1cab634.gifInitializing Keyboard Controller

3b994fe.gifTesting VGA BIOS
- This will start writing VGA sign-on message to the screen

2b36bf2.gifProcessor Initialization
- This will show information regarding the processor (like brand name, system bus, etc...)

f53faac.gifTesting RTC (Real Time Clock)

9ec1db5.gifInitializing Video Interface
- This will start detecting CPU clock, checking type of video onboard. Then, detect and initialize the video adapter

4f7c881.gifBIOS Sign On
- This will start showing information about logo, processor brand name, etc

6a25253.gifTesting Base and Extended Memory
- Testing base memory from 240K to 640K and extended memory above 1MB using various patterns

1bef2e1.gifAssign Resources to all ISA

e664b69.gifInitializing Hard Drive Controller
- This will initialize IDE drive and controller

c3b6c58.gifInitializing Floppy Drive Controller
- This will initializing Floppy Drive and controller

3afd28f.gifBoot Attempt
- This will set low stack and boot via INT 19h

24b95b0.gifOperating System Booting

When your motherboard is stuck on any of these signals, that's a clue that something is wrong with that particular device on the board. Replace it and try again.

Good Luck

And don't forget to leave a rating,

Thanks

Mark



Sep 16, 2009 | MSI MB INTEL E7520|E7520 Master-S2M RTL...

2 Answers

1720 Dell Laser printer Photoconductor Problem


I finally figured it out (with Dell Tech Support's help)! When you replace the drum, you MUST reset the counter as well. All you have to do is:

1) Turn off the power using the switch on the back of the printer. Open the front door of the printer.

2) Hold Continue button down, power on the printer, and continue to holding Continue down until the LEDs begin to flash. When the LEDs start to flash, release Continue button. The LEDs will continue flashing until only Error LED will be lit.

3) Close the front door. Continue, Ready/Data, Toner Low and Load Paper LEDs should be lit.

4) Wait till the printer completes the POST process. POST is complete when fan noise and rollers stops. After POST wait for 5 seconds

5) Press Cancel button 4 times slowly until the Toner Low LED is lit. This is the procedure resetting the counter.

6) Press and hold Continue until all LEDs begin to cycle in sequence, then release Continue. Now only the Toner Low LED will be lit.

7) Cycle the power of the printer (turn it off and then back on).

GOOD LUCK, EVERYONE!!!

Mar 12, 2009 | Dell 1700n Laser Printer

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