Sony kdl 40wd653 no image backlight yes


sony, 40wd653, image, backlight

A small number of connectors, but the main ones to ensure the operation of the TV are available: SCART, 2 HDMI, 2 USB, Ethernet, Wi-Fi, Miracast, CI slot, headphone output. The 2017 Sony KDL-40RE353 has component connectors instead of SCART, but it does not have Wi-Fi support. Sony KD-43XF7005 already provides 3 HDMI, USB, WIDI outputs.

Sound power. 10 W, provided by two 5 W speakers. Dolby Digital, DTS decoders allow you to get a fairly deep realistic sound. Sony KD-43XF7005 also has 2 speakers, but twice as powerful (10 W each).

Review of TV Sony KDL-40WD653

Sony KDL-40WD653 TV released in 2016. A model of the budget segment with not the highest quality of color rendering, contrast, average functionality in comparison with the developments of recent years. Advantages. the presence of Smart TV, although a slightly outdated version, good energy efficiency, color temperature of the image. I have prepared a review that allows you to better assess the features, pros and cons of this model, conducted a comparative analysis with other Sony TVs in this price segment.


Smart TV on Linux, like most budget Sony TVs (for example, KD-43XF7005). But Sony KDL-40RE353 is not equipped with Smart TV at all. Many functions are “slow” because the browser is quite slow, like Smart itself. There are few applications installed, but Opera saves the situation somewhat.

Sony 40″ Smart Tv(No Picture,No display,Backlight Ok)

In terms of reproduction quality, the model showed mediocre results. The player does not read WMV, TS, FLV, RMVB, and sometimes even MKV, AVI files. When launching a video from a PC, it correctly stretches it regardless of the aspect ratio. Clearly displays 1080i format.

Supports 24p True Cinema, has a digital tuner, recording to media is possible, connecting to a network with other devices (DLNA).

Control is carried out by a conventional remote control, which also does not add convenience and creates certain difficulties, for example, when typing. Built-in memory. 4 GB. As with most Sony TVs, there is a child lock, timer.

Advantages and disadvantages

  • compact stand, easy installation;
  • good color temperature and color coverage;
  • the picture quality corresponds to the model of this price segment;
  • provides good sound quality, although it loses to Sony KD-43XF7005 in terms of power;
  • many online cinemas, Opera;
  • ease of customization;
  • user-friendly interface.
  • slow, outdated Smart TV;
  • dark spots at the edges of the screen (uneven backlighting);
  • black looks grayish;
  • when viewed from a side view, colors and brightness are worse;
  • not very convenient remote control;
  • no bluetooth.


Dimensions. 924 × 549 × 66 mm, weight. 7.7 kg. Simple uncomplicated design. The screen is flat, around it there are rather wide frames of 1.5 cm. Behind the TV is a somewhat unusual angular shape in the form of a low pyramid. There are special channels for wires. This feature of the case may not give it a good look when wall-mounted. Although a standard mount of 200 × 200 mm is provided for this.

The stand is lightweight, attractive in appearance, weighing 0.4 kg, and only 21 cm deep, significantly refreshes the design. Has hollow legs for cable management. With a stand, the dimensions are 924 × 589 × 212 mm. Sony KD-43XF7005 is distinguished not only by its large size (970 × 630 × 279 mm), but also by its significant weight. 10.4 kg.


The diagonal is 40 ”(102 cm), the resolution is Full HD (1920 × 1080 px), that is, there is no need to wait for perfect clarity, since there are only 55 pixels per inch. For comparison, the 42 ”(108cm) Sony KD-43XF7005 has a resolution of 3840×2160, which allows the manufacturer to improve the quality of displaying details.

The downside is the lack of support for HDR and 4K, which are in the KD-43XF7005 model.

The viewing angles are 178 °, but according to the test results, it turned out that this figure is not entirely true. The picture is distorted with a strong deviation from the center, the colors lose brightness.

The indicators of brightness and contrast are expectedly low, which is typical for inexpensive models. The declared brightness is 350 cd / m 2. During testing, a different result was obtained. 226 cd / m 2. The color gamut is close to the standard, the color gamut is also at a height of 99%. But the color rendering is average. The color temperature corresponds to the standard (6500 degrees). The brightness is unevenly distributed. the level visually differs in the center and on the sides. Contrast. up to 3500: 1 at a brightness of 100 cd / m2 2.When the brightness is increased to 200 cd / m2, the contrast decreases to 1220: 1.

Refresh rate index (50 Hz) does not allow displaying dynamic scenes without tearing. But this indicator is typical for all inexpensive models, for example, Sony KDL-40RE353. Motionflow XP technology improves display up to 200 Hz (Sony KDL-40RE353. up to 100 Hz), but this is still not enough. If you move quickly on the screen, the image may twitch. The response time is 42 m / s even in game mode, which is unlikely to be liked by gamers.

The backlight is made on the entire surface of the screen (Direct LED), which prevents the flashing on the sides, typical of Sony KD-43XF7005 with side illumination (Edge LED). But when watching a video, it is noticeable that the backlight is not very uniform.


Sony KDL-40RE353 lacks Smart TV. Sony KD-43XF7005 for 42,000 rubles has slightly better characteristics of brightness, color and sound. In general, Sony KDL-40WD653 has low brightness, contrast and outdated Smart. For its price category, it cannot be considered a leader. But it has the lowest power consumption level. only 59 watts. For comparison: model KD-43XF7005 consumes 100 W.

Possible malfunctions

With similar manifestations, a malfunction is most likely to be found in the ACDP-060S03 power supply module.
An external power supply unit of the ACDP-060S03 type can be purchased independently by the owner of the TV and its repair is not always advisable. In any case, the simplest typical defects characteristic of most SMPS circuits can be easily detected and eliminated after opening. Then we recommend measuring its output voltages and, if they are absent, you should check the serviceability of the power switches and rectifier diodes of the converters for a possible short circuit.
In case of diode breakdown in secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor in the source of the key usually breaks off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM regulator, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) are usually checked by replacing them with new ones, or knowingly working.

In such cases, the most likely malfunction of the LED panel backlighting elements. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It should be remembered that it is not possible to determine an open circuit in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then you need to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow opening the LED in the forward direction or dual LEds are used, then the PN transition of the emergency zener diode can indirectly serve as an indicator of serviceability. In the event of a malfunction of the LED-a, the PN junction of the zener diode will either be cut off or broken through in the SC.

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Repair or diagnostics of the 1-980-335-23 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In cases of complex repairs of MB (SSB) and with the necessary skills and equipment, it may sometimes be necessary to replace its CPU chips: MT5566CQVT and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.

If the TV operates normally from external devices, but does not tune into TV channels, the CE251ZP tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the reason for the inoperability of the tuner may be a software failure.

Owners of the KDL-40WD653 TV are advised to contact only qualified specialists with the necessary work experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences.!

Sony TV repair KDL-40WD653

Material is added to the pages as information becomes available from the available technical documentation, personal experience and from the masters of repair forums. Please, send your developments on limiting the current in the backlight and firmware, we will publish.

Technical description and composition of the SONY KDL-40WD653 TV, panel type and modules used. Composition of modules.

LED backlight: 2015SONY TPZ40 FCOM A06 REV1.0 151014

LED driver (backlight): integrated into PSU

Power Supply (PSU): ACDP-060S03 Adapter 19.5V

MainBoard: 1-980-335-23 173587123. A2093494E

Control: Remote: RMT-TX102D, IR 1-980-483-21, Wi-Fi: J20H090.00 1-458-900-11

Screen diagonal:40 “(102 cm)
Screen format:16: 9
Update frequency:200 Hz
LED backlight:yes, Direct LED
Smart:there is. Wi-Fi support. there is
HD support:1080p Full HD
Viewing angle:178 °
Progressive scan:there is
Digital tuner: DVB-T MPEG4, DVB-T2, DVB-C
Teletext:there is
DTV formats:480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Multimedia:MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG
Stereo sound:there is
Sound power:10 W (2×5 W)
Acoustics:two speakers
Interface:SCART, HDMI x2, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n, Miracast
Headphone jack:there is
TV weight:with stand: 8.1 kg
without stand: 7.7 kg
Dimensions:with stand 924x589x212 mm
without stand 924x549x66 mm
Mains consumption:59 watts

Additional MainBoard Repair

The appearance of MainBoard 1-980-335-23 is shown in the figure below:

Main features of the SONY KDL-40WD653 device:

Installed matrix (LED-panel) NS6S400DND01.4-580-636-11.
A converter combined with a power supply is used to power the backlight LEDs.
To power all internal units of the SONY KDL-40WD653 TV, an external source of the ACDP-060S03 Adapter 19.5V type is used.
MainBoard. the main board (motherboard) is a 1-980-335-23 module, using CPU chips: MT5566CQVT and others.
Tuner DE251ZP H7K020C provides reception of television programs and tuning to channels.

The information on this site is accumulated from the records of repairmen and forum members.
Be careful! Typos and errors possible!

Design and appearance. 3.5

The Sony KDL-40WD653 TV looks simple and, accordingly, its low price. If you want to choose a model with a more interesting design, you can see, for example, reviews on the website

Wide bezels, flat screen, average thickness, it would seem, there is nothing to say. Only a light and cute stand of an unusual shape will diversify the situation. It not only weighs little, but also takes up little space, only 21 cm deep. In addition, its legs are hollow inside, you can hide hanging cables in them.

The side bezels around the display are quite wide, about 1.5 cm. From the rear, the Sony KDL-40WD653 looks unusual, with niches for connectors at the bottom and with angular shapes. From the side it looks like a truncated pyramid of low height. from the corners of the rectangular platform four faces radiate to each of the corners of the TV, making it thinner at the edges. This will make the TV look odd when mounted on a wall. The thickness of the Sony KDL-40WD653 at its thickest point is 6.6 cm, which is a typical figure; weight without stand. 7.7 kg, with it. 8.1 kg. For comparison, the Samsung UE40J6390AU has almost the same thickness and weight.

Ports and connectors

Sony KDL-40WD653 received a not very wide range of ports and connectors, but it still has everything you need. At the same time, their location turned out to be atypical, some are directed “into the wall”, others. to the left, and some up or down.

  • one HDMI
  • headphone jack
  • two USB connectors.

The last two connectors go close to each other, you won’t be able to connect two “thick” flash drives at once.

  • SCART connector
  • digital optical audio output
  • network port (internet connection via cable)
  • HDMI connector.

All that remains is the antenna connector, which looks downward, and the slot for the CI expansion module, which is directed upward. At the same time, there is a curious moment that there are no old composite-component connectors on the case, but for some reason the same relic SCART remained.

Image quality. 3.3

The image quality on the Sony KDL-40WD653 screen turned out to be typically budget or average for its price. In particular, it is low contrast, limited viewing angles and lack of HDR support.

The screen resolution is 1920 × 1080 pixels, for a diagonal of 40 inches, this means a density of 55 pixels per inch. In terms of clarity, this is comparable to the 28-inch HD TV LG 28LF491U.

The TV has a rather low brightness, measured around 226 cd / m2. This can be a problem in a bright room. Gamma. 2.1 is close to the reference value of 2.2. The color gamut is good, 99% of the standard. The color reproduction quality turned out to be average, the average error value was 4 units. This is not so much, but, as you can see in the infographics, most of it falls on individual colors, and this can be noticeable. The TV also has a low contrast ratio, 1220: 1 at a brightness of 200 cd / m2 (like the Samsung UE40JU6600U), although if you reduce it to 100, the contrast will increase to 3000: 1. The brightness distribution was not very uniform, only 78%. But the reference color temperature is 6500 degrees. The viewing angles are quite narrow, the picture is generally seen well, but the black quickly becomes gray.

Management and connections. 3.7

Controlling the Sony KDL-40WD653 TV is not the most convenient and advanced, primarily because of the classic push-button remote control and the “old-fashioned” interface. But, in general, it is quite simple and straightforward.

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The TV interface itself looks extremely out of date, as if it was developed by Soviet engineers. All menus (smart functions and picture settings) are strictly separated from each other and look different. At the same time, in principle, it is clear what and where to look for, although the management does not look modern, it is still quite understandable. All settings are within a few actions.

The TV set comes with an oblong, angular remote control. It is neither too narrow nor too wide, but too long for easy handling. But it works clearly, although some obstacles between it and the screen can still interfere with the signal transmission. Thanks to the flat back, it lies stably on flat surfaces and will not wobble if you decide to press the buttons with one finger, placing the remote on the table. The purpose of the keys will be clear for those who know at least a little English, but their large number still confuses.

There are three control keys on the TV case, they are hidden on the bottom edge. It is not very convenient to use them, and at first it is not even clear how. You can turn the device on / off, turn it down or louder, or select one of the signal sources. There are simply no settings or controls for Smart TV. By the way, about the latter. Typing (Wi-Fi password, browser and search) is complicated by a push-button remote control, there is no voice control, as well as predictive input.

Functionality. 3.8

After testing, we cannot call the Sony KDL-40WD653 functional. Formally, it has all the attributes for this: Wi-Fi (with support for Wi-Fi Direct and DLNA), Smart TV, a digital tuner, and even recording content to external media. But this is not Android TV, but an old-style system with no future prospects. And many functions do not work very quickly, which is typical for this price category.

The KDL-40WD653 can connect to the Internet not only through a cable. it has a Wi-Fi module, it works fine, at least it was enough for YouTube videos in low quality. True, we could no longer use the same Wi-Fi Direct. we could not connect to the TV either with the Asus Zenfone 5 or with the Hauwei P9, apparently, for TV this is no longer a trivial task.

Sony KDL-40WB653 is able to read and write information to USB-media. True, during our tests, he read the flash drives every other time, if not less often.

Sony KDL-40WD653 TV: Review

Sony KDL-40WD653. 40 ” Budget Full HD TV with Basic Smart TV.

According to the test results, we liked its energy efficiency, color temperature of the picture, as well as the presence of Smart TV.

Otherwise, unfortunately, we have nothing to praise him for. During our tests, we found out that it has uneven distribution of backlighting, low brightness and contrast, as well as noticeable deviations in color reproduction, you can see more reviews for comparison. All this, of course, is typical for the price of the Sony KDL-40WD653, but in the same price range you can find something else with 4K resolution, for example, the LG 43 UF640V. In terms of smart functions, this is not advertised by Android, but its own OS with an old-fashioned interface, a limited selection of applications and slowing down functionality, which is typical for most state employees. The built-in player during our tests was unable to reproduce quite a few different test clips, and the TV did not perform so well in dynamic scenes either.

It seems that Sony does not always succeed in inexpensive models, although there are exceptions (for example, Sony KDL-32W705C). In pursuit of a “fall”, they are still inferior to competitors. You can choose a TV only for the sake of games, it does not have a very long signal delay. In this case, we suggest that you familiarize yourself in more detail with its other shortcomings in order to make a decision on its purchase. Well, see other models in our TV rating.

Play video. 3.5

Sony KDL-40WD653 achieved average results in video playback tests of various formats. This is a budget model without support for 4K video and without 3D function, and the built-in player cannot cope with some video and audio formats.

So, the TV did not play WMV, TS, FLV, RMVB videos and even some in MKV and AVI.

Sony KDL-40WD653 is equipped with MotionFlow technology, in his case it smooths the picture up to 200 Hz, but this is not enough for especially dynamic scenes. The image jerks in sharp turns and looks unattractive.

Sony KDL-40WB653 correctly stretches video in different aspect ratios, even when connected from a laptop. The TV also does a good job of deinterlacing. displaying 1080i (interlaced) format. it looks quite clear and smooth, which is even surprising.

The Sony KDL-40WD653 has an average input lag, or the time delay between sending a signal and displaying it. It was 42 ms, and regardless of the image mode, be it “Game” or any other.

Sony KDL-40WD653 TV

The TV is small in size and quite thin. Made in classic black color, it will easily fit into any interior. Frames are thin and almost invisible, which complements the miniature and elegance of the model.

The build quality is not very good, which is typical for low-cost TVs. The device is installed on a special stand, which is a bracket in the front and a support in the back. The stand is not too big, but it holds the TV well and does not allow vibrations.

If desired, the TV can be wall-mounted using the appropriate mount. It is worth noting that the connectors located on the rear panel will be inaccessible after installation, so the connections should be planned in advance, or use an extension cord.


  • Width: 92.4 cm;
  • Depth: 21.2 cm with stand and 6.6 cm without;
  • Height: 58.9 cm with stand and 54.9 cm without stand;
  • Weight: 8KG.

The TV was released in 2016 and belongs to inexpensive models, so you should not expect too impressive results from it. A huge disadvantage of the model is the darkening of the corners of the screen. Perhaps this is a factory marriage, but among real owners it occurs too often, creating discomfort when viewing almost any content.

There is no 4K support, the maximum format allowed. Full HD. The manufacturer has implemented color and detail enhancement technologies to optimize low quality images to Full HD settings, but compared to a number of models in this price range, the image is not very bright and saturated.

Display of moving objects is not optimal for fast-paced games and movies, despite support for 200Hz Motionflow XR, which is designed to improve the display of dynamic objects, but does not compensate for the low refresh rate of the screen.

Although the manufacturer claims to support the local dimming function, in practice, a high-quality image is achieved only in rooms with an average level of illumination.

Rooms that are too dark do not provide deep blacks, and in bright light, factory peak brightness is not enough to combat glare from sunlight.

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The main advantage of the model is its wide viewing angle. even with a significant deviation from the center of the screen, the image will not lose saturation, and the color rendition will not be distorted.

The rear panel of the TV contains connectors that are available for connection only for desktop placement:

  • SCART for connecting a number of multimedia devices;
  • 2 HDMI connectors for broadcasting images from a PC or laptop:
  • 2 USB connectors for connecting external digital media;
  • Ethernet (LAN) to create a home local area network;
  • CI. providing access to premium content through a smart card;
  • Optical audio output;
  • Headphone jack.

The TV supports wireless Wi-Fi and Miracast broadcast technology.

The name of the series to which the model belongs.

Screen size declared by the manufacturer. This is often the rounded value of the actual diagonal size in inches.

Screen diagonal size. In the absence of information from the manufacturer, the diagonal is calculated based on the width and height of the screen.

There are different technologies for the manufacture of matrices. Each of them has its own specific characteristics. viewing angles, color rendering, response time, brightness / contrast, production costs, etc. Image quality directly depends on the type of screen matrix used.

The most widely used matrices with 6, 8 and 10 bits for each of the RGB components of the pixel. They provide 18-, 24-, and 30-bit color respectively.

The maximum number of colors a display can reproduce depends on the type of matrix used, as well as the use of technologies such as FRC, which increase the number of colors.

The aspect ratio of the horizontal and vertical sides of the screen. Some of the standard and commonly used aspect ratios / formats. these are 4: 3, 5: 4, 16: 9 and 16:10.

Information about the number of pixels vertically and horizontally on the screen. Higher resolution allows for more detailed and better picture reproduction.

Pixel pitch shows the distance between the centers of two adjacent pixels. In screens that have their own (native) resolution (TFT screen, for example), the pixel pitch depends on the resolution and screen size.

Information about the number of pixels per unit of length. As the screen size decreases and its resolution increases, the pixel density increases.

The approximate area that the active screen area occupies of the total area of ​​the screen bezel, expressed as a percentage.

Backlight. it is a light source in matrices of LCD screens. The backlight type determines the image quality and color space of the screen. There are various backlights, such as CCFL, LED, WLED, RGB-LED, etc.

Screen brightness information. It is measured in candelas per square meter (cd / m²).

Static contrast shows the ratio between the brightest and darkest colors that the screen can reproduce at the same time, for example, within the same frame / scene.

Stationary computer monitors and Smart TVs have a delay / lag in information visualization. The time in milliseconds it takes for the screen to render the input signal.

Information about the maximum horizontal viewing angle within which the image on the screen is of acceptable quality.

Information about the maximum vertical viewing angle within which the image on the screen is of acceptable quality.

Information about whether the screen supports 3D or not.

Vertical Frequency / Refresh Rate shows how many times per second the image on the screen is refreshed.

Frame interpolation technologies vary from manufacturer to manufacturer, and each has its own specific name.

Manufacturer-specified frame interpolation value. This value should not be confused with the refresh rate of the screen.

Some manufacturers introduce their own unit names for their own interpolation technologies when they are sold to indicate the degree of interpolation. Very often units of measurement. this is an abbreviation / abbreviation of the used frame interpolation technology.

Voltage tolerance in a 220-volt electrical network.

Requirements for the frequency of alternating current in the electrical network.

Standby (Sleep) Power Consumption.

Average power consumption in standard operation.

The energy efficiency class / label provides an overview of energy consumption. There are different energy efficiency classes and each has its own energy requirements. Some of the existing energy efficiency classes. these are: A, A, A, A, B, C, D, E, F, G.

Maximum possible power consumption.

Width without stand in different units.

Height without stand in different units.

Depth without stand in different units.

Weight without stand in different units.

Width with stand in different units.

Height with stand in different units.

Depth with stand in different units.

Weight with stand in different units.

Information about the colors in which this model is offered for sale.

Information on whether it is possible to mount on a wall in accordance with the VESA Mounting Interface Standard (MIS).

There are many different interfaces for the VESA standard, which differ in the size of the brackets, the distance between the mounting holes and their number.

Information about whether the stand can be removed. This is usually required for wall mounting.

Information about whether the stand allows height adjustment.

Some screens have the ability to work in both landscape and portrait mode.

Information on whether the screen can be rotated around the axis of the stand.

Most screens have the ability to tilt forward and backward to provide the user with a more comfortable viewing position.

Information about TV tuners with which this model is equipped.

Operating systems for Smart TVs are equipped with a variety of interactive user interface technologies for navigation and other ways to interact with Smart TVs. to install applications, browse the Internet, make video calls, exchange content with other users, play videos and music, etc.

Speaker. it is a device that converts electrical signals into acoustic vibrations, as a result of which the corresponding sounds are reproduced.

Information about whether this model has a built-in camera or not.

Information about the supported networking technologies and standards in this model that allow you to connect and exchange data with other devices.

Information about available connection ports, slots and interfaces such as USB, infrared port, SD card slot, audio / video and network interfaces, etc.

Information about additional software features, technologies, features and services for this model.

Information on some of the major graphic file formats supported by this model.

Information on some of the major audio formats / codecs supported by this model.

Information on some of the major video formats / codecs supported by this model.

List of standards, certifications and licenses supported / obtained for this model.

Information about some of the basic accessories that come standard with this model.

The operating temperature indicates a safe temperature range (minimum to maximum temperature) within which the screen will function smoothly. Outside of this range, it may not work properly and / or may not work at all.

Operating humidity indicates the acceptable humidity level at which the screen will function smoothly. There is a lower and upper humidity level for safe operation, and it is measured as a percentage.