Toshiba 37HL67 37 in. LCD HDTV Logo
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David Trent Posted on Dec 15, 2014
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Toshiba 37HL67 has a series of 3 blinking lights on power up. When TV turns on the screen will show up normally, but goes out shortly there after. Power down, smack the top, power on, comes on like it

I replaced the PCM board

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The Knight

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  • Toshiba Master 76,851 Answers
  • Posted on Dec 16, 2014
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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

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Usually Sony and LG Blinking Codes are the same. Here is what I have.
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