Which button on the TV remote expands the screen

Automatic search

When the button for scanning has already been pressed, a button will appear on the screen with the ability to select the type of scan. Depending on the receiver model, the names of the menu items may differ slightly from each other. For example, looking at how to tune channels on the Openbox satellite tuner, the menu will ask you to do “Blind search”, “Auto scan” and “Manual search”.
Automatic scanning is convenient because there is no need to enter the transponder settings, the system will independently select all the transponders that the satellite dish receives.

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Setting up the receiver

It is best to start the process of getting to know the menu of the purchased tuner by reading the operating instructions.

The first thing to do. this is to check if the signal is received from the required satellite.

Third. you need to set a correspondence between each satellite and DiSEqC ports. To do this, during installation, you need to record which head is connected to which of the DiSEqC outputs. Then, in the tuner menu, set the switch in the order of connecting the heads to the ports.

If this was not done when installing the satellite dish, then you need to carry out this setting by the selection method, alternately selecting the corresponding satellites to the ports.

This is the basic setting that should be done before tuning channels on the satellite tuner.

Connecting to a TV

You can connect the tuner to any of the TVs; for this, a number of special inputs are located on the rear panel of the receiver:

  • antenna cable input;
  • tulips;
  • scart or HDMI connector.

How to connect is selected either by the capabilities of the TV (it all depends on its model), or by the desired playback quality.

The HDMI connection is considered the best, the image quality will be at the highest level. Further, based on this criterion, there is a connection using a scart connector, followed by tulips. And in the very last place in terms of quality is the antenna output.

If the search did not return any results

It happens that the channel search did not give a result, the antenna cannot reproduce it and shows a black screen with the correct settings. The most common problem is that the antenna itself is poorly tuned. It is worth checking, and it is better, of course, to involve specialists in this field who can help at any stage of the process of installing and configuring a satellite dish and tuner.

You can also independently check the availability of the tuned channel according to DVB-S or DVB-S2, MPEG-2 or MPEG-4 standards.

You can also double-check the settings for the selected channel, maybe outdated information about the satellite, transponder and its speed was initially found. Thus, many users are faced with the problem of how to tune the Inter channel on a satellite tuner, because such a large media group is constantly developing, growing and changing. And in parallel with these processes, he changes satellites for broadcast. This happened recently, and now you can watch Inter on two satellites. Astra 4A or Sirius 5 with transponder settings:

  • Frequency. 12399 MHz;
  • Polarization. V;
  • Speed ​​- 27500;
  • FEC. ¾;
  • Standard / Modulation. DVB-S / QPSK.

Today, the process of how to tune the Inter channel on a satellite tuner can only be carried out in this way, and in no other way.

Required tools

To start installing the antenna at hand, you must have:

  • Extension socket.
  • Rotary hammer for making holes for fixing the bracket to the surface using dowels or anchors. You can also use a drill for this purpose.
  • Drill bits for drills or hammer drills.
  • Two wrenches, diameter 10 and 13 mm.
  • Phillips screwdriver.
  • Hammer.
  • Insulating tape. Plastic ties can be used instead.

How to tune channels on a satellite tuner yourself?

In today’s developed community, not a single person can refuse to watch television. News, entertainment shows, educational programs. without this, an ordinary person is unlikely to be able to spend his day. And of course, in order to get the most out of watching TV, people choose high-quality means for broadcasting TV channels. The satellite tuner is considered the most reliable and popular equipment for this. But if it’s not a problem to buy it, then how to tune channels on a satellite tuner? All information on this issue is presented below.

Connecting the antenna to the tuner

F-connectors should be screwed onto the ends of the cable from the satellite dish; they are needed for direct connection to the tuner. And on the tuner itself there is a connector called LBN IN, designed for this connection. This connector must be connected to the connector, screwed on. Before you tune the channels on the satellite tuner yourself, we remind you that the tuner must be completely disconnected from the electrical network during the connection process.

What’s in the box for satellite TV?

Everyone can buy a set for installing satellite television today. The standard and most optimal kit will cost from 50 to 80. Usually the kit includes the following list:

  • A tuner, or receiver, is also called a receiver. This is the most expensive part in the installation kit, and you need to choose it very carefully, since the quality of the video broadcast depends on it. It is better to choose the broadcast in the mpeg4 format, but mpeg2 will work too. How to install it, and how to independently tune satellite channels on the tuner, will be described below.
  • Antenna. Needed in order to receive a signal. Can be from 70 centimeters to 1.2 meters in diameter.
  • Head, or converter. There may be several of them at once, but models with three heads are more common. Each of them receives from one satellite.
  • Multifeed. This is the name of the special head mount. The standard set includes 2 of them.
  • Dissek. It switches converters.
  • TV cable. Must have a resistance of 75 ohms and a length of 3 to 5 meters, with a small margin.
  • F-connectors. Designed to connect the parts of the kit. For a satellite dish with three converters, 8 such plugs are provided.
  • Antenna bracket and dowels (anchors).
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Before you independently tune the channels on the satellite dish tuner, you should figure out how to properly install and tune the antenna itself.

Buttons on the TV remote control labels

In this article, we will introduce you to the purpose of the buttons of television remote controls using the example of one of the models.

Description of standard buttons

Any remote control can be visually divided into several parts, a set of buttons in each of them is aimed at adjusting related functions. These buttons represent a specific action or function on the remote.

In the designation area A, which, as a rule, is located at the top, above the digital designations, there is a control panel for various devices. In addition, there can be quick access to the main menu, viewing information about the channel and the broadcast program, displaying subtitles, parental control, selecting and changing the signal source. Some models only have an on / off button in this area.

REFERENCE. Also, with its help, you can enter and exit standby mode.

The example shown shows the following values:

  • button in the upper left corner. on / off;
  • TV / RAD. switch from TV to radio and vice versa;
  • INPUT. change the input signal source;
  • SETTINGS. go to the main parameters;
  • Q.MENU. instant access to the menu;
  • INFO. viewing information about a program or movie / series;
  • SUBTITLE. on / off playback of subtitles.

Zone B contains numbers for changing channels and controlling settings, navigating through channels (switching in order) and menu items, and adjusting the volume. In addition, in different models next to them there may be buttons for switching to the previously viewed channel, search, displaying the program guide, access to the list of favorite channels, enabling / disabling 3D mode and sound, timer, page-by-page scrolling of lists, home (to return to the main menu) and the menu itself (if it is not in zone A).

REFERENCE! On some devices, the number 0 also acts as a space when entering information.

The presented device contains:

  • number buttons;
  • ordinal transition between channels;
  • sound adjustment;
  • GUIDE. TV guide;
  • Q.VIEW. return to the last viewed channel;
  • FAV. selected TV channels;
  • 3D. enable / disable 3D mode;
  • MUTE. on / off sound.

In area C there can be elements of transition from one menu item to another. Some models do not have such a zone, and all the buttons necessary for this are located in other zones. With their help, you can work on teletext, confirm the input of information, return to the previous menu level and close the control panel.

  • RECENT. showing previous actions;
  • Smart. go to the main menu;
  • LIVE MENU. lists that differ depending on the model;
  • TEXT. teletext;
  • navigation buttons;
  • OK. confirmation;
  • BACK. go to the previous level;
  • EXIT. exit from the menu;
  • AD. on / off sound descriptions;
  • REC. work on video recording.

And finally, zone D. It is used to play, pause, rewind and stop the video. In addition, it has colored buttons for additional menu functions.

Setting up the universal remote control to control devices

To switch between them, use zone A. Using the remote control, you can control your TV, DVD-players and TV-tuners, stereos and audio receivers, as well as a TV-set-top box, for this you just need to press the buttons with the corresponding values. However, the factory settings do not always meet the requirements of the devices, therefore, additional adjustment may be required using the manufacturer’s code, in manual or automatic mode.

Here’s an example of adjusting the TV mode, but the same steps are valid for both DVD and audio.

With the TV turned on, hold down the TV button for a while, then release it as the LED lights up. In ten seconds, enter the digital code from the directory supplied with your device. In case of an error, the LED will blink three times, if entered correctly, it will go out. To check if the code works, try increasing the volume, if this happens, try other buttons. If some of them do not work, repeat the same sequence of steps, but with different code.


The TV is equipped with a typical set of interfaces. Briefly the functionality of the interfaces is described here, in detail. in the manual. The input can be named by choosing from the list of presets or by entering your own, you can also mark the input as unused.

Image settings

Standard settings. Contrast, Brightness, Color, Sharpness. are supplemented by the Color balance list (three color temperature profiles) and the Color Management (usually no visible effect), xvColour (gamut control), Noise reduction (video noise suppression) and 3D-COMB filter functions (elimination of color artifacts in the case of a composite signal). In case of NTSC signal, hue adjustment is available (Bitmap background).

Only with a VGA connection, you can correct the color balance by adjusting the intensity of red and blue colors, and their displacement, as well as select the profile of the gamma curve (4 values).

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Turning on Eco Mode activates the light sensor on the front panel. in bright ambient light conditions, the TV will increase the brightness of the picture automatically. Enabling the Energy Saving function. slightly lowers brightness and, accordingly, power consumption. There are four preset profiles. Changes made to the settings are automatically saved for each source, you can reset them to the initially corresponding to the selected profile using the menu, or simply by pressing the N button on the remote control.

Geometric transformation modes 8: 16: 9. suitable for viewing 16: 9 pictures and anamorphic films, 14: 9. for LetterBox format 14: 9, Panoramic. uneven magnification (stretching from the center horizontally), the option of viewing a 4: 3 picture on widescreen TV, 4: 3. 4: 3 picture in the center of the screen, on the sides. black bars, Magnification 1. for LetterBox, Magnification 2. for watching anamorphic or widescreen movies 2.35: 1 without black bars above and below, Magnification 3 for LetterBox 2.35: 1 without black bars. For HD signals with a 4: 3 picture in the center, you can select 4: 3 full screen mode. In Auto mode, the TV itself tries to choose the most optimal type of transformation, using special flags / signals in the video signal or in the connector and analyzing the picture for the presence of black fields. In the case of plasma TVs, the correct choice of transformation is important both for efficient use of screen real estate and for preventing image retention. For example, when viewing Full HD video with an aspect ratio of 2.35: 1, it is advisable to select the Zoom 2 mode, in which the image will occupy the entire screen, but part of the picture on the right and left will go beyond the boundaries of the screen. If the selected mode still implies the presence of unused side stripes, then it is recommended to slightly increase their brightness by setting the Sidebar parameter to Medium or even High.

With Overscan Mode = On. the image is slightly enlarged, so that possible noise around the perimeter extends beyond the display area.

The HOLD button on the remote control “freezes” the picture.


When you press the button with the same name, a menu of 5 icons is displayed on the screen.

Selecting the icon activates the corresponding function from the VIERA TOOLS set, however, most of them can be reached in an alternative way. through the menu, from the remote control, or simply by inserting an SD card. The first two. VIERA Link and Pause Live TV. relate to control of Panasonic equipment connected to the TV, the remaining three are viewing the contents of an SD card.

The TV can display JPG images from SD memory cards (support for cards with a capacity of up to 32 GB inclusive is declared). There is a mode of thumbnails and a slideshow with a configurable image change interval (5-120 s), transition effects (3 effects and random selection), the ability to turn on background music (3 types) and autorepeat.

When viewing, pictures can be rotated in 90 degree increments. Images can be grouped by folders, by date, by month, or simply display thumbnails of all files in one list. JPG images are displayed perfectly. they fit tightly into the screen, the proportions are preserved, the clarity and color reproduction are excellent.

The ability to play video from SD cards is also declared: recorded on Panasonic camcorders in MPEG2 format (checked, everything is fine) and AVCHD (checked for video from a LUMIX DMC-GF1 camera).

Plasma TV Panasonic VIERA TX-PR42S10

In a series of articles dedicated to Panasonic’s current line of VIERA TVs, we have already reviewed two representatives of the V series (see TX-LR32V10 and TX-PR50V10) and one model of the G series (see TX-LR37G10). Now it’s the turn of the S series, whose slogan is “Maximum gaming fun!” means positioning for gaming use. For the test, we received a TV with a 42-inch Panasonic VIERA TX-P42S10E screen, which is almost a complete analogue of the TX-PR42S10 model intended for sale in Russia. There is only one significant difference. there is no digital TV tuner in the Russian version.

TV tuner

The analog TV tuner traditionally for Panasonic TVs demonstrates high reception quality. When receiving with an indoor antenna in our test room, the TV found 17 stations: 7 showed very well, 8. acceptable (sometimes fine tuning of the antenna was required) and 2. bad. The result is above average. The channel list obtained as a result of auto search can be sorted manually. In the channel properties you can edit: sound system, color system, name and skip flag. In addition, you can manually adjust the frequency and start searching from the current channel. The TV shows teletext (for Russian, you need to select East 1 in the settings) and decode stereo sound (NICAM / A2).

Since we got the European model, we were able to test the digital tuner in operation. At the time of testing, we found 3 digital TV channels and one radio channel on the air in Moscow. Not a lot, no additional information is transmitted, and the image encoding quality is at a very low level. So we can state that there is no digital TV broadcasting yet.

Passport technical characteristics

A type 12th Generation Progressive Scan Plasma Panel
Diagonal 42 inches, 106 cm
Image size 921 by 518 mm
Resolution 1920×1080 pixels
Aspect ratio 16: 9
Brightness There is no data
Contrast 2,000,000: 1 dynamic,
30,000: 1 static
Response time 0.001 ms (response time from signal to discharge)
Life time 100 thousand hours
Antenna input Analog TV tuner (DIN 75 Ohm)
AV1 RGB and composite video inputs, stereo audio input, composite video output, stereo audio output, Q-Link (SCART)
AV2 RGB, S-Video and composite video inputs, stereo audio input, composite video output, stereo audio output, Q-Link (SCART)
AV3 S-Video and Composite (RCA) video inputs, stereo audio input (2 RCA)
COMPONENT Component video input (3 RCA), stereo audio input (2 RCA)
HDMI1 / 2/3 HDMI inputs, video and stereo audio (L.PCM ​​48 / 44.1 / 32 kHz), HDAVI Control 4 version 1.3a with x.v.Colour, analog audio reception on COMPONENT-AUDIO for HDMI1 and AV3-AUDIO for HDMI3
PC VGA video input, receive analog audio signal on AV3-AUDIO
Headphone out 3.5 mm mini jack
DIGITAL AUDIO OUT Digital audio output (optical interface)
AUDIO OUT Analog stereo audio output (2 RCA)
Card reader SD card slot (SDHC compatible)
Compatible video signals
Composite and S-Video PAL, PAL60, SECAM, NTSC 3.58, NTSC 4.43
Component 480i, 576i, 480p, 576p, 720p, 1080i @ 50 / 60Hz
VGA 640×400-1366×768 @ 60Hz
HDMI 480i, 576i, 480p, 576p, 720p, 1080i, 1080p @ 24/50 / 60Hz
Analog TV tuner VHF / UHF / CATV; PAL / SECAM (B / G / H, I, D / K, L / L ‘), NICAM / A2, teletext
Acoustic system Stereo speakers 160×40 mm, 6 Ohm, 2 pcs., 2×10 W @ 10% THD
General characteristics
Dimensions (WxHxD) 1029x704x334 mm with stand,
1029x661x105mm screen block
Weight 27 kg with stand, 25 kg without stand
Power consumption 350W, 0.4W standby
Supply voltage 220-240 V, 50/60 Hz
Average current price in Moscow 1124
Link to the manufacturer’s website www.panasonic.ru
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Measuring the uniformity of black and white fields

The brightness of a small area of ​​the screen was measured with a highly sensitive sensor. When measuring the uniformity of the white and black fields, the sensor was sequentially placed at 25 screen points located with a step of 1/6 of the screen width and height (screen borders are not included). The table shows the mean values ​​and the minimum and maximum deviations from the mean values.

The brightness uniformity of the white field is good. The brightness of the black field is so low that it was not possible to reliably determine it. Subjectively, the black field on the whole screen looks absolutely black. To characterize the contrast achieved within the frame, we measured the contrast in the output of a checkerboard, something like ANSI, but applied to a TV. This ANSI contrast turned out to be 1730: 1, which is very good.

Dimension 5

If the above checks did not bring a positive result, then, which is unlikely, the keyboard controller microcircuit issues incorrect numeric codes or, more likely, there is an open circuit in the PCB track from the collector of the output transistor to the emitting diode.

2.2. Troubleshooting Remote Controls

If you have found out for sure that the remote control is faulty, and not the receiving part of the system, then first you should install a known good battery. If the operation of the remote control has not been restored, do not keep the new battery connected to the remote control circuit for a long time, since it can quickly fail due to a possible short circuit in the circuit.

Troubleshooting in the remote control circuit (Fig.2.1) can be performed in the following sequence.

2.3. Troubleshooting Remote Control Receivers

Checking the remote control receiver (sometimes called the head amplifier) ​​is straightforward. You just need to make sure that the supply voltage and the output signal are present. Recall that this signal is a serial data stream, and it is impossible to establish the validity of the transmitted digital code using an oscilloscope. However, if there is a signal, then it can be assumed that the transmitted code is correct and malfunctions of the remote control system are associated with improper operation of the control and monitoring circuit. If there is no output signal, before replacing the CHIP, it is imperative to check the operation of the remote control receiver by disconnecting its output from the TV circuit. There is, although rarely, the possibility that the corresponding input of the control microprocessor is “short-circuited”.

We would also like to note that an indirect sign of a failure of the remote control receiver, with a known good remote control, is the flawless control of the corresponding functions from the front control panel of the TV.

Dimension 2

If the supply voltage drops sharply when the key is pressed, then most likely the IC1001 controller microcircuit needs to be replaced.

If the supply voltage drops slightly when the key is pressed, then you can perform

2.1. Operating principle

A modulated infrared signal is used to transmit commands. The digital code characterizing the function selected by pressing the corresponding key is sent by the remote control in the form of a series of “flashes”. Each “burst” contains a sequence of short pulses. The digital code about the selected command is formed by the duration of the interval between “flashes”. In this case, the duration of the gap is measured between the leading edges of two adjacent “flashes”. The logical “0” corresponds to the interval of 2 ms, and the logical “I”. 4 ms.

The function of 1C 1001 is to generate a keyboard scan signal, decode information about pressed buttons and issue a digital code from pin 20 corresponding to the selected function. The operation of the 1C 1001 is determined by the quartz clock generator XI 001.

The output signal D 1001D1002D 1003 is a sequence of bursts of IR pulses, the intervals between which are determined by the transmitted code. It should be noted that usually for remote control circuits, the reference frequency of the transmitter is about 250 kHz, and it is not very common. about 450 kHz. The frequency is changed so that the operation of the remote control does not interfere with the operation of other parts of the TV.

TV repair.

Chapter 2. Remote Control and OSD Diagram