HP M1050Y - not powering up after power surge

Common Causes of Lightning Strikes

• Outdoor network cables or power cables are routed overhead.
• A switch is deployed outdoors but is not properly grounded.

Damages of Lightning Strikes

• If power cables of a switch are routed overhead in an outdoor environment, lightning strikes may burn the power supplies.
• If network cables of a switch are routed overhead in an outdoor environment, lightning strikes may burn interfaces of the switch.

When a switch undergoes lightning strikes, overvoltage is induced by lightning on network cables and transmitted to interior of the chassis. The surge protection measures, such as lightning rod and chassis grounding cannot prevent the damage. Therefore, surge protectors or surge protection circuits are recommended.

Surge Protector Use Precautions Take the following precautions to protect a switch from lightning:

• Ensure that the ground cable is connected to a ground bar or a ground point on the cabinet.
• Avoid routing cables overhead in an outdoor environment. Bury cables underground or route them in steel tubes.
• To protect network interfaces against lightning, use 8-line surge protectors (or Huawei certified 4-line surge protectors).
• When installing a network interface surge protector, connect the IN end to terminals and the OUT end to network interfaces of the switch.

If a fixed switch is installed in a network box, follow these instructions:

• Connect the ground cables of the switch and surge protectors to the ground bar in the network box.
• The maximum length of a ground cable cannot exceed 40 cm, and a length of smaller than 15 cm is recommended.
• If the network box is located outdoors and power cables are routed aerially over a long distance (more than 300 m) to the network box, it is recommended that you install a power supply surge protector in the network box. The decoupled power cable must be at least 3 m long

S2300 Switch Thunder link com

your tv is shot ,im sorry to say that but its burnt

There were 2 Switching power supply circuit inside the ATX PSU. There's a Standy PWM circuit whichSupply +5V to the PWM IC of the Main PWM. Stand by pwm still working or insufficient voltage, lower than +5V. This is the reason you still have Green light. Check or replaced small filter capacitor around 100 MFD 16V, open resistor or shorted diode that was nearest of the PWM IC..
Watch out for charge voltage on big capacitors.

Rleo

No reset for that processsor.. ALL Surge protectors are not guaranted for lightning strikes. Does she know if lightning hit the line that services her home?

If your receiver was connected to any power source and that power source was not a surge protector strip there may be damage to the receiver as lighting travels. Another thing to consider is the fact that many people will put their equipment on surge protectors but the cable is still connected to the TV etc...This is just another avenue for the lightning to get into the home and blow up your system. I always disconnect any cable from my computer and TV. The power source from the wall is also unplugged when there is a storm just to be sure. Surge protectors are limited in their use as well. I don't believe they can take too many lightning hits. It is best to change them out.

u might need to change Lightning/Power Surge Suppressor the comes inside of ur motor connected between the black and white cables of the power input of ur motor

Due to the power surge, it is highly possible that the monitor was given a boot by your computer on it's way out.

This will short out a very small transistor inside the monitor on the video board and in turn, then monitor cannot see that there is a signal so goes to sleep.

If you get brave enough to venture inside the screen, then check near the cable input. The transistors are only around 3mm and have 3 legs (two one side and one in the middle on the other).

If you find anything like that burnt (get a magnifying glass) then replacing the board is the easiest option. Just don't be tempted to wipe the board before you look at everything very closely, you may wipe away the tiny bit of evidence you are looking for.

Hope it helps =)

got the same issue

hp pavilion 1723