Question about Epson LX-300+ II Matrix Printer

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While switch on only LEDS glow and no head movement ..and head firing sound is coming and no initilazing

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Possible failure of the main board but all what you can do is to see that the heads are in place with the mechanism .
Remvvoe printer, uninstall and then reinstall , connect printer to be detected , now take a test. If not you have a harware issue to be checked out.

Posted on Sep 03, 2010

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My fireplace fan will not come on. There is a glow switch that started blinking and now the fan does not work. It will get hot but no fan movement.


Happen to me once. To high of current going into fan . You burnt the motor . It's a high risk for a fire. Look at your circuit board see what size of amps is that plug-in
. Any hardware store what size of fan you need.
Bill

Oct 11, 2016 | Heating & Cooling

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

My compaq prescario CQ45 is not booting up. When I press the power on button, the LEDs are glowing. I could also hear a brief sound as if the fan is operating. After 4 to 5 seconds, the fan also stops...


There are a few reasons/causes of this.
The most common cause is the modem going faulty. Remove the modem and it may come back to life as it can't finish POST.
The Bios has an error, remove the Cmos battery and let the board discharge for 1/4 hour, re fit it and it may POST.
The uProcessor may need re seating and have a bad contact on a pin. Re seat the uProcessor and clean off old heatsink compound installing new.

Maybe as they are the most common I have come across, you may fall into one of them, I hope, otherwise it is a dead motherboard I'm sorry to suggest. Even if the RAM is faulty, it should attempt to POST.

Jan 02, 2011 | Compaq Presario Notebook

1 Answer

3 beep sound


If a PC suddenly fails to boot properly, you should perform a hard reset as the first action. Performing the hard reset will correct many problems. If the computer still does not start properly, select your symptom from the list below to guide you to the recommended corrective actions.
  1. Disconnect all peripheral devices and remove all USB devices and SD media cards. You want to test the computer not the accessories!
  2. Disconnect the AC power adapter, remove the battery, and then press and hold the power button for at least 15 seconds to drain all residual power and restore default startup settings.
  3. Reconnect the AC power adapter (but do not insert the battery), Press the Power button, Look for glowing LEDs near caps lock and num lock keys, and Listen for sounds of a fan or other moving parts turning.
  4. If the computer does not start, the LED lights do not glow, and the display is black, you can perform one or more of the following actions to resolve the no power issue.
    • Verify the computer is receiving power from the AC adapter . Verify that the AC adapter is not damaged and is connected correctly to a working wall outlet plug. Verify AC power is connected to the system board by examining the AC adapter, wiring, and pin connection for damage. The keyboard LEDs will glow when AC power is connected to the system board. Damaged components, like the AC adapter or the pin in the power connector, may require an HP-certified repair.
    • Use a different AC power adapter . If you have access to a different AC adapter or power pack that is designed for the computer, connect it to the notebook and try to start the computer. If you own or have access to more than one notebook, verify that you are using the adapter which belongs to the notebook. CAUTION: Using a power adapter that does not meet the power requirements or has the wrong type of connector may damage the computer. On newer notebook models, connecting the wrong adapter to the notebook may cause the power LED lights to blink but not power the computer.
    • Remove the battery and boot on AC power only . A discharged or defective battery may prevent the AC adapter from supplying enough power to start the computer. To verify that power from the AC adapter is available for PC; remove the battery, connect AC power adapter, and press power button. If available, try using a different AC adapter, that is rated for the PC, and repeat this test.
    • Remove the AC adapter and boot on battery power only . A defective AC adapter may not charge the battery and prevent the computer from booting on battery power only. To verify battery power available for the PC; connect AC power adapter, allow battery to charge for 30 minutes or more, disconnect the power adapter and press power button. If available, try using a fully charged battery, of the same type, from another computer and repeat this test.
      • If LEDS do not glow and the fan or hard drive do not spin, battery may need to be replaced.
      • If tests of both the battery and the AC adapter fail, there may be a problem with system board requiring service by HP.
      • If LEDs glow and PC boots, the AC adapter may need to be replaced.
      • If LEDs glow, but PC does not boot go to LEDs glow, fan is heard, but display is black or blank section.

Nov 21, 2010 | HP Compaq d530c PC Desktop

1 Answer

Heater won't ignite even after replacing ingniter. seems to aspirate ok


Hi, was the ignitor that you replaced of the hot surface type/ glow type, or the ignitor module box? I will say of the glow type and see.When the inducer motor comes on, you will have a pressure switch that must close for the ignitor to come into play first. This switch will be located in the circuit after the inducer motor. Some have a reset, but most do not. You can use a jumper wire to bypass this switch, one side to the other, and if it fires up the switch is faulty.Sounds to me this is you're problem. Please try and take this step as it is only 24 volts and very easy to check.If you find this to be the problem, do not leave the jumper on as this is a safety device. You will need to get one at a appliance parts house or heating and air parts house.If the ignitor glows, the switch will be good. You will need to go to the main gas valve to see if you are getting voltage to the pilot coil after the ignitor glows.You will see on the valve MV/PV and C.If you have no volt meter, you can feel, listen for a click, the pilot coil energizing. Check at the burners to see if you have a flame roll out switch that is resetable. This may have tripped. If you have a board with led lights, look for a chart on the inner panel, and it will lead you to a place to start looking, according to how many flashes, blinking Leds you have going on.Try and do these checks for me to solve this problem. If you can't find the problem, send me more information on the brand, model and age of this unit so we can sovle this together. Plese let me know. Sincerely,
Shastalaker7

Dec 11, 2009 | Cars & Trucks

1 Answer

Carrier Heater less than 5 years old--shutdown


sounds like the igniter is not glowing to start the flame let me know if this helps

Jan 11, 2009 | Carrier 38CKC036 Air Conditioner

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