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Hisense tv model 40H4030F won't turn on after cable lightning strike

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Brad Brown

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Lightning ruins everything electronic, even things you cant see. It is best to replace the whole unit. You could find the part that is bad and replace it but then there will be something else and it is a rabbit hole. By the time you are done, you will have spent more time and money than you would have just buying the whole set.

Posted on Jul 10, 2020

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When and How Should a Surge Protector Be Used on a Fixed Switch?


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

Dec 08, 2016 | Office Equipment & Supplies

2 Answers

Will a nearby lightning strike cause a power board failure?


It could happen yes it would depend where the strike entered the TV. Not all lighting strikes hit on the electrical lines, on a TV they can come through the cable, as well as a antenna if you have one hooked up.

May 10, 2014 | Samsung UN32EH4003F

1 Answer

Altec Lansing ACS45.2-Lightning strike


There is a good chance with a lightening strike that damaged so much of your equipment that this device was also affected. power to the device doesn't necessarily mean that other components were not damaged.... you can elimanate speaker damage by hooking the speakers up to another device to check them.

Robert

Sep 15, 2008 | Dell PART NUMBER KIT SPEAKER MM ACS45...

2 Answers

Lightning strike


Yep - I'd say it took out the tuner at least. time for a repair center or the round file...

Aug 14, 2008 | Toshiba 27AF45 27" TV

2 Answers

Lightning strike came in via cable not power.


Your tv is going to need internal repairs. I recommend using our premium service to help walk you through these repairs. Or contact a local repair service.

To avoid this in the future I recommend an inline surge protector or a "green" switch.

An inline surge protector makes sure that all power to your tv comes through at the same level and does not spike or fall. It has a battery backup as well.

A green switch is a way of rewiring your home or your entertainment center to allow you to disconnect all power to your entertainment center when you are away, when a storm is coming, or when you are simply not using the system. A remot control can restore the power.

The average home entertainment center has one of the highest drains on electricity in the average home for appliances that are not in use. that is what makes the green switch appealing.

CH

Jul 30, 2008 | Televison & Video

2 Answers

19 in blue screen only sound works great


un plug the tv for 3 minutes to reset it, then plug it back in. if this dont fix it, please get back with me and tell me if you had any power outtages or surges. some times lightning strikes can burn out the tuner when it strikes the cable line.

Oct 19, 2007 | Westinghouse LTV-19W3 19 in. LCD...

3 Answers

Lightning Strike?


Assuming this line is across the screen horizontally (side to side), this means the vertical deflection circuitry is dead. In late model sets, there is a Integrated circuit package which drives the vertical yoke coils. Possible defects: the I.C. itself, bad solder connections where it solders to the board, missing voltage source to this I.C. (often around +24 volts), or a bad electrolytic capacitor in the associated circuitry. This latter often results in a non-linear picture, or less than full deflection condition, rather than a thin line only. It is possible lightning caused this problem, (I've seen some rather illogical damage from lightning ) perhaps it produced enough of a surge to pop the I.C. or a fusible resistor in that voltage source noted above.

Jul 03, 2007 | GE 24GP653 24" TV

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