Question about Xerox XG-71D 17" Flat Panel LCD Monitor

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Xerox LCD Monitor Won't Power On - PSU Tests OK

Hi, I read the other posts pertaining to this type of problem and eliminated the possibility of the power supply being the culprit here. I get no power on light on the monitor - nothing. Previously worked, then I moved and now nothing. I'm not aware of it being damaged in the move. Any other suggestions?

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  • Anonymous Mar 06, 2008

    I have the same issue. I get a flashing green power light, but the screen stays black. Don't want to pay $100 to get it fixed, but if it is the power supply, any guess on how much that is?

  • dub1969 Mar 18, 2008

    I have the same problem. The power suppy is like $35 on ebay.

  • Anonymous Apr 20, 2008

    I have the same problem but when you unplug the digital cable not the analog one. The analog by it self works.

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I have a flashing light.I am going to replace the PS and I will repost

Posted on Mar 18, 2008

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No power on


Start barebones and work your way up.
Unhook everything except the Power Supply, MB, CPU/with fan, Monitor, Power SW, and Keyboard (eg...no mouse, no hardrive, no cd-dvd....). If no post or no power it might be a bad power supply, MB, CPU, etc.....process of elimination.

Possible "DOA"

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BN97-02472C issue It doesn't seem to be a power problem. I read about the capacitor problem with many of the Samsungs out there but I don't have the relay clicking like most people with cap issues....


Hi,
Unfortunately capacitors have been projected as a cure to all possible problems in an LCD tv by some you tube experts. The actual problem may lie in the power board or the main board. An expert is needed to check and find the actual culprit.

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Toshiba P105, backlight dont turn on in my lap


If the LCD, inverter etc works in anothe laptop but not in the original laptop then it looks like a motherboard problem, possibly the power supply to the inverter.

Oct 11, 2009 | Toshiba Satellite P105-S921 Laptop PC...

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CPU NOT DETECTING ERROR CODE FF


If you are having trouble booting the system and getting a screen try the following multi-step procedure. Power off your system first before completing any of the following tips.
1) Check CMOS clear jumper JP1 (JBAT1 on some systems). Set for CLEAR for 5 seconds, then move back.
2) Check CPU host clock jumpers (if any) are properly set. Note: does not control memory bus.
3) Check your power supply. Should be 110/115v for North America.
4) Unplug all data cables for IDE and FDD from the motherboard.
5) Unplug all power supply cables attaching to your IDE and FDD drives.
6) Remove all cards and devices EXCEPT for video, RAM, CPU, CPU heatsink/FAN.
7) Move memory into a different bank, if available.
8)Unplug the CPU and reattach.
9) Ensure your CPU heatsink/FAN is attached properly to the CPU.
10) If you use a variable RPM fan ensure its set for full speed.
11) Retest.
12) If 1-11 do not help power off and test the motherboard outside the computer case to eliminate a case/motherboard power short.
13) Retest. If the board now works check for case problems. If the system still is not working continue…
14) You may have a possible hardware problem. Any device in the system may be a possible culprit. Use process of elimination to determine the cause. Swap out as many components as possible starting with RAM, CPU, POWER SUPPLY, VIDEO CARD (if present) and/or MOTHERBOARD.

Jul 30, 2009 | Mercury P4VM800M7 Motherboard

1 Answer

Dell gx270 mother board power supply proseccer fan automatic running but power switch is not work how i find plz help me


For non-BIOS issues:

If you did not try to update BIOS before the problem started then try these troubleshooting steps.

1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button (this discharges any residual power in the capacitors).

2. Open the case and reseat the graphics card, hard drive, and RAM.

3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

4. Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set the Cmos jumper back to normal position, power up the PC.

5. Unplug and replug all the power supply cables.

6. Check the powersupply function. Either by a powersupply voltage checker (20-25 dollars at local PC shop), get the supply tested at a PC shop (usually a free service), put the powersupply in a different pc, or try a different powersupply in the problem computer.

If the Powersupply checks out ok, then you will have to do a process of elimination to find out what part or parts are the culprit of the No-Boot.

Start by pulling all the ram sticks if you have not already. This is the easiest components to check and usually a culprit.

Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

If it is not the RAM, you have to continue removing items such as sound cards, un-plugging hard drives and optical drives, other PCI cards. Do this one at a time until you find the culprit. If a POST screen, meaning you can see Anything from the PC brand name to Motherboard brand name appearing on the screen. The PC may not boot to windows, but it Does post at this point, and with that the problem is resolved. If windows does not load, then you have a new problem. Best dealt with asking a new question.

Good luck!
Brian

Jul 06, 2009 | Dell Computers & Internet

1 Answer

Dell 4400 won't power up Flea light works


For non-BIOS issues:

If you did not try to update BIOS before the problem started then try these troubleshooting steps.

1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button (this discharges any residual power in the capacitors).

2. Open the case and reseat the graphics card, hard drive, and RAM.

3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

4. Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set the Cmos jumper back to normal position, power up the PC.

5. Unplug and replug all the power supply cables.

6. Check the powersupply function. Either by a powersupply voltage checker (20-25 dollars at local PC shop), get the supply tested at a PC shop (usually a free service), put the powersupply in a different pc, or try a different powersupply in the problem computer.

If the Powersupply checks out ok, then you will have to do a process of elimination to find out what part or parts are the culprit of the No-Boot.

Start by pulling all the ram sticks if you have not already. This is the easiest components to check and usually a culprit.

Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

If it is not the RAM, you have to continue removing items such as sound cards, un-plugging hard drives and optical drives, other PCI cards. Do this one at a time until you find the culprit. If a POST screen, meaning you can see Anything from the PC brand name to Motherboard brand name appearing on the screen. The PC may not boot to windows, but it Does post at this point, and with that the problem is resolved. If windows does not load, then you have a new problem. Best dealt with asking a new question.

Good luck!
Brian

Jun 28, 2009 | Dell Dimension 4400 Power Supply ** FREE...

1 Answer

I have a HP M 7160 that will not turn on. There


For non-BIOS issues:

If you did not try to update BIOS before the problem started then try these troubleshooting steps.

1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button (this discharges any residual power in the capacitors).

2. Open the case and reseat the graphics card, hard drive, and RAM.

3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

4. Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set the Cmos jumper back to normal position, power up the PC.

5. Unplug and replug all the power supply cables.

6. Check the powersupply function. Either by a powersupply voltage checker (20-25 dollars at local PC shop), get the supply tested at a PC shop (usually a free service), put the powersupply in a different pc, or try a different powersupply in the problem computer.

If the Powersupply checks out ok, then you will have to do a process of elimination to find out what part or parts are the culprit of the No-Boot.

Start by pulling all the ram sticks if you have not already. This is the easiest components to check and usually a culprit.

Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

If it is not the RAM, you have to continue removing items such as sound cards, un-plugging hard drives and optical drives, other PCI cards. Do this one at a time until you find the culprit. If a POST screen, meaning you can see Anything from the PC brand name to Motherboard brand name appearing on the screen. The PC may not boot to windows, but it Does post at this point, and with that the problem is resolved. If windows does not load, then you have a new problem. Best dealt with asking a new question.

Good luck!
Brian

Jun 20, 2009 | Bestec (ATX100-5) (ATX1005B) Power Supply

2 Answers

Desk top emachine powers on


You state that thre are no beeps coming from the PC upon boot. If you remove the memory entirely and reboot, you should get a series of BIOS post tones. If you do not get these, I would first test your power supply to make sure it is working properly. If it is, you most likely have a failed hardware component: either motherboard or processor. If you get no post tones without memory loaded and with a known good power supply, the motherboard will be your problem child.

If you DO get post tones with a known good power supply, try replacing memory 1 stick at a time (if you have more than 1). If 1 works, you have your culprit. If neither work, then you most likely have a bad processor.

Process of elimination...sucks sometimes :-(

Jun 18, 2009 | E-Machines eMachines Desktop PC

1 Answer

How to replace Power Supply in Toshiba 44NHM84 44" TV


Since this is a DLP type set, there is a lamp and ballast involved. When the set shuts down, are there any indicator lights on the front? If so, check the owner's manual for an explanation of their meaning. Typically, the lamp can cause this or the ballast. If either of those are the problem, usually the lights on the front panel will indicate it.

Keep us posted.
Dan

Sep 21, 2008 | Toshiba 44NHM84 44" TV

1 Answer

Thanks for reply, addl questions..


Hi again Tgeek,

Appreciate the postback.

In reply to your first query, yes especially those with 3-wire connection since they are variable RPM (depending on a heat sensor that dictates to what RPM the fan motor should rotate). If the PC is a couple of years, then cleaning and lubrication wouldn't do any harm but would maintain if not improve overall efficiency. Additionally, you have eliminated the possibility that the fan is the cause of the "screeching" sound.

Should problem persist (with the fan problem eliminated), then the only possibility left is as you suspected the SMPS (switch mode power supply). The SMPS operates on a frequency above the threshold of the human hearing. In some instances due to full load or no load conditions, the frequency changes (though they are supposed to remain stable). It is very possible for the freq to go down to a level that would be audible. Intermittent operation is not unheard of with PSUs and often the culprit are capacitors. However, often PSUs are no longer repaired but simply replaced.

Would appreciate another postback for any developments (or even the lack of it).

Cheers.

Mar 24, 2008 | Computers & Internet

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