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TV Answerman
TV Answerman, Technician
Category: TV
Satisfied Customers: 10788
Experience:  Licensed to work on all aircraft and shipboard electronic systems including radar displays
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I can turn the TV on, but it says No signal. Check the external

Customer Question

I can turn the TV on, but it says "No signal. Check the external input or select another input using the INPUT button." Across the top it says "HDMI 1" and "Player 1 (BD Player)". It does not then respond to the INPUT button or to almost any other button. It does respond to the FAVORITES button, but then doesn't do anything there. The TV is a Sony BRAVIA Z Series KDL-52Z5100 52-Inch 1080p 240Hz LCD HDTV.
Submitted: 6 years ago.
Category: TV
Expert:  Marnatz2285B replied 6 years ago.

Hello, I am here to assist with your Sony TV issue,

Many issues can be resolved by performing a hard reset of your tv, this will set the unit back to factory defaults.


Here is the Sony tutorial:



I hope you find this information useful if so please accept my answer.

Customer: replied 6 years ago.
This was not helpful, because the tutorial was not helpful. It instructed me to reset the TV by pressing the "Reset" button on the remote, but there is no "Reset" button on the remote for my TV. I think that the tutorial was for older models of Sony TVs.
Expert:  TV Answerman replied 6 years ago.
Hello Alexa,

Let's try this first.

Turn on the TV. While holding down on the remote control, press POWER on the TV. (The TV will turn itself off, then back on again.) Release .
WARNING: The reset will clear all of your customized settings including the Parental Lock setting.

Let me know if this corrects it or not.


Customer: replied 6 years ago.
The answers that I received were not helpful. For one thing, they focused on how to reset the TV, but it turned out that the problem was with the remote. I didn't know when I asked the question that the problem was with the remote but, looking back, there were reasons that should have tipped off a savvy person, namely that the TV was almost completely unresponsive to commands from the remote. Now that I have diagnosed and fixed the problem myself, I am not really interested in getting more answers from the same person or from a different person. BotXXXXX XXXXXne is that I am not inclined to accept the answers given or to give you more opportunities to try again. Thank you!
Expert:  TV Answerman replied 6 years ago.
Well, when your TV says HDMI1 and no signal, I was assuming you had something hooked up to HDMI1. I guess I was wrong.

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