Technical description and composition of the SONY KD-55XE7096 TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KD-55XE7096
Chassis / Version: 1-981-926-22
Panel: V550QWSE05
LED backlight: STO550AP5_51LED
T-CON: 17Y_HU11APHTA44LV0.0
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): APCP-209A2 2955045601
MainBoard: 1-981-926-22 (173657422)
Tuner: CE251ZP
Control: IR: 1-981-960-11 (173658811), WiFi: DNUR-SY3 1-458-959-13
Technical Specifications KD-55XE7096
SONY KD-55XE7096
General repair guidelines for TV LCD LED
Possible malfunctions
- SONY KD-55XE7096 does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
In some of these cases, the main switching power supply, the APDP-209A2 module, turns out to be faulty. It is necessary to measure its output voltages and, if they are absent, to check for short-circuit probabilities in the converters, power switches and rectifier diodes.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback (OOS) stabilization circuits. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
A malfunction is usually most likely in these cases at the backlight nodes of the display matrix. The reason can 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.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the motherboard 1-981-926-22 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software).
If the TV works normally from external devices, but does not tune into television channels, the CE251ZP tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
It should be remembered! Attempts to self-repair a SONY KD-55XE7096 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
The appearance of MainBoard 1-981-926-22 is shown in the figure below:1-981-926-22
The appearance of the power supply
Main features of the device SONY KD-55XE7096:
Installed matrix (LED-panel) V550QWSE05.
The matrix control uses the Timing Controller (T-CON) 17Y_HU11APHTA44LV0.0.
A converter is used to power the backlight LEDs, combined with the main board 1-981-926-22.
The formation of the necessary supply voltages for all nodes of the SONY KD-55XE7096 TV is carried out by the APCP-209A2 power module, or its analogues.
MainBoard - the main board (motherboard) is a module 1-981-926-22.
The CE251ZP tuner provides TV reception and channel tuning.
Brand: SONY, Model: KD-55XE7096.
Briefly from the TV: LCD, LED backlight, 54.6 ", 3840x2160, 4K UHD, HDR, DVR, there is a satellite tuner, sound: 20W, HDMI: 3, Internet access, Wi-Fi, Smart TV.
Producer: Malaysia / Slovakia (Nitra) Developer: Sony Corporation. Japan
On the official site of Sony there is firmware (Firmware) - updating the software to version v8.764 from 11/21/2018.
The composition uses MainBoard 1-981-926-22 (173657422) and LCD-panel V550QWSE05.
Power Supply Unit (PSU) APCP-209A2 2955045601 Power Supply.
The SONY KD-55XE7096 TV with a V550QWSE05 LCD display, a diagonal size of 54.6 "(139 cm) in 16: 9 format. The required screen brightness of 350 cd / m² is provided by LED backlight LED. The ratio of maximum brightness to minimum (contrast) is 3300: 1 .This model uses side lighting from Edge LEDs.
The V550QWSE05 display and software (software) of the 1-981-926-22 board provide for viewing in high quality UHD 4K with a resolution of 3840x2160 pixels in the 4K UHD, HDR standard. Image processing is performed using modern High Dynamic Range (HDR) technologies with an extended range of brightness gradations.
The KD-55XE7096 TV has built-in SMART Software and Opera TV preinstalled. Connecting to the Internet can be done via Wi-Fi. Video processor supported multimedia file formats: MP3, WMA, MPEG4, HEVC (H.265), Xvid, DivX, MKV, JPEG.
The power of the sound speaker system 20 W (2x10 W) is provided by two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, HDMI x3, USB x3, Ethernet (RJ-45), Wi-Fi 802.11n, WiDi, Miracast. An output for connecting headphones is provided.
The digital tuner is capable of receiving television channels in the standards DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2.
The power consumed by the TV in the operating mode from the network is 147 watts.
Overall dimensions: with stand 1238x775x252 mm, without stand 1238x722x58 mm.
TV Weight: with stand: 18.6 kg, without stand: 17.6 kg.
Attention! The V550QWSE05 panel of the SONY KD-55XE7096 LED TV is its most expensive element.
Avoid hitting the glass and excessive pressure on the screen surface to avoid damage to the LED panel!
It is unsafe to get any liquid on the screen. Sometimes one drop of water is enough, if it flows down the glass onto the cables, the TV can become unrepairable.
