2. Turn off the power of the set-top box when wiring.

1. On the front panel, there are red standby lights and green signal lock lights. After the set-top box is installed in the user's home, the green signal light on the front panel will always be on under normal conditions, indicating that the signal has been locked. If there is no green light on the front panel after searching for the program in the user's home, it means that the set-top box has not received a valid signal at this time. Similarly, when the technician detects the user's terminal signal and the set-top box is normal, if the green light of the set-top box is always off during the search, it means that the signal quality of this user's home is too poor for the set-top box to receive.

2. The operation key 1 * * on the front panel has seven keys: Up, Down, Left, Right and Menu, Exit and OK. These key values cooperate to operate the set-top box.

3. Smart card slot is used to insert smart cards. Users should avoid inserting smart cards repeatedly when using the set-top box, which may damage the contact point between the smart card bracket and the smart card chip of the set-top box.

4. The backplane has six ports: signal input, signal loop output, RCA interface, S terminal, SPDIF terminal and RS-232.

When connecting RCA connectors, the main common problems on TV are:

5. The RCA port of the TV set is loose because it is not used for a long time, which leads to the damage of the connector after forcibly inserting the audio-visual shower head.

6. There are two sets of RCA interfaces on the back of high-end TV. When installing, it is easy to insert the connector into the signal output port of the TV by mistake. Some TV sets are marked with text descriptions, such as: input and output; But some TV sets don't have this kind of text description, so look at the label on it. Two common representations are as follows: signal input port means signal output port. So please connect to the signal input correctly.

Related instructions:

7. The S terminal can only be used for video output, so it is necessary to connect the audio cable separately.

8. The S-end cable is not suitable to be placed in the package of the set-top box, and users need to buy it themselves.

9. After connecting the TV to the S terminal, adjust the TV to the S video state instead of the AV state.

Related instructions:

10 and SPDIF ports can only be used for audio output, so you need to connect a video cable.

1 1 and SPDIF ports can be used together with the S terminal to achieve better audio and video effects.

The connecting cable of 12 and SPDIF is not suitable for the packaging of set-top boxes, and users need to buy it themselves.

13. First plug the power cord of the set-top box into the power board, then press the power switch of the set-top box to turn on the digital tube on the front panel. When the word "good" is displayed, it means that the set-top box can work normally. Switch the TV to Video /AV mode.

14. When the set-top box is turned on, first the LOAD appears, then the LED of 10, 0 keeps turning, and finally the word GOOD appears. If the LED of the set-top box stays on the word LOAD or 10, but the word GOOD does not appear, it can basically be judged that the LOADER main program of the set-top box has been destroyed. 、

15. If the word GOOD appears on the set-top box LED, theoretically, a boot screen will appear on the TV. However, if the TV is still in a black screen state after pressing the menu button on the remote control, it may be that the TV has not switched to the "video /AV" mode.

16. If the TV mode is normal, there may be something wrong with the TV's video interface: it is inserted incorrectly or damaged.