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Need help fore a VIZIO TV Model # VO47L FHDTV30A that does not power up.

My wife was watching TV and she heard a loud popping noise. She said that it sounded like a firecracker. Approximately 1 minute later the TV stopped working. With the TV power off the orange VIZIO light is no longer illuminated. When the TV power is turned on no relays turn on. I opened the back panel to look at the power supply P/N DPS-280LP A. There is no visual damage to the capacitors, fets or any other components. The fuse is good. There is no DCV at the 5V, 12V and 24V pins on the connector. I tried to measure with the connectors installed and uninstalled. I could not find a replacement power supply but shop Jimmy has a power supply repair kit with transistors, capacitors and ICs. Is this a legitimate fix or should I check other PCBs and what should I look for?

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  • Vizio Master
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You have power supply failure

Posted on Dec 11, 2016

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Posted on Jan 02, 2017

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I have a 47' Vizio lcd flat screen tv. So I turned it on and heard a loud pop noise. Now the tv will not turn on and no power seems to be getting to the tv. I believes its the mothboard mothboard.


That loud pop was a surface mounted "cap" capacitor blowing up. Look for a burnt spot on the circuit boards inside the TV cabinet, it will be very small so look carefully. They are called "Caps" for a reason.

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I have a Vizio p50hdm while watching heard a pop noise and tv went out cant turn back on.I replaced main board and power board and still doesn't come on any Ideas?


The power amplifier chip (which goes "pop" when it goes bad) may be located on the board where the IR sensor is. Sometimes (but not always) you can make the TV come on by holding the power button in _until_ the TV comes on. But that usually only works when the chip is "going" bad. If you heard the pop, it's probably shot. Also, check for a fuse on _any_ of the boards, and possibly a main fuse at the back of the TV.

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Vizio vo47L 47" LCD. No


0ne of 3 has failed:
(in order of probability):

1. Backlight inverter
2. Power Supply
3. Backlight

More specifically on #1 and #2 - capacitors either bulging, leaking, or exploded.

Please seek the expertise of an experienced TV repair technician - as they contain potentially lethal voltages that must be properly discharged before work can begin.

Thanks!@#$

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2 Answers

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Hello, This is a problem with the power supply board, the pop you heard was a capacitor (it exploded). If you do not have a background in electronics, please have a qualified TV Technician repair the TV set. There are no user repairable parts in the unit. In any event the power supply board needs to be repaired. Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

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1 Answer

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If you have a Sony DLP, then the loud pop you heard is your lamp.  The lamps last approx. 4K-6K viewing hours.  Read your manual for replacement part number to reorder and very simple to replace yourself.

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Call for warranty service! This can be a power supply failure.

Jerry G.

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power supply.Definately will need to be replaced. Im actually looking for one to replace myself.TV repairs charge 1200 to repair.

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