Common fault handling methods of digital TV set-top box

Lead: The emergence of IPTV set-top boxes has added a lot of free choices to our entertainment life. However, when failures inevitably occur, the following are common troubleshooting methods for digital TV set-top boxes.

1. There is no signal, snowflake or blue screen on the TV boot screen.

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Press the "Input Selection" or "Signal Source" button on the TV remote control, the standard definition set-top box will switch the signal to video mode or AV mode, and the high definition set-top box will switch the signal to HDMI mode.

2. The TV screen seems to get bigger or black.

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Turn off the power of the set-top box, pull out the smart card, wipe the chip, insert the smart card chip face down into the card slot, and reopen the set-top box.

A small yellow envelope appears on the TV screen.

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Press the "SMS" or "Info" button on the remote control of the set-top box, and the information content will appear, prompting the user to pay. You can delete the information after reading it.

The words "This program has not been purchased" appear on the TV screen.

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Explain that the user fee is due, please pay.

There are broadcast pictures, sounds and no images on TV.

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Press the TV/Radio button on the remote control of the set-top box.

6. TV has pictures but no sound.

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(1) Check whether the set-top box remote control or TV remote control is muted.

(2) Check whether the TV volume is 0.

The Solution of Expanding Unsignaled Digital TV Set-top Box

0 1 Check the power supply. If the power supply of the TV set-top box is not turned on, then the set-top box will definitely not display the picture, so it is still necessary to check whether the power supply is in a normal' electrified state'.

Check whether AV and HDMI signals are smooth. This problem is that the access source is not selected correctly, and IPTV set-top boxes often appear. The set-top box indicator is on, but there is no boot screen on the TV screen, and the TV screen is blue without any text prompts.

Check the lock button. In daily life, the digital TV set-top box has no signal because it is locked. Just check that the lock light is on.

04AV/TV settings are switched, and the power light and lock light on the digital TV set-top box are in a long state. At the same time, the picture displayed on the TV is snowflake and black screen, and the AV/TV mode is switched.

Whether to renew the fee, of course, there is another case where you have not paid the fee and need to pay it at the response department. If the above possibilities are ruled out, it is that the equipment is broken and needs after-sales maintenance.