Technical description and composition of the SONY KD-55XF7096 TV, panel type and modules used. The composition of the modules.SONY LED
Model: KD-55XF7096
Chassis / Version: DRT L_R04_171128
Panel: YS8S550CND01
LED backlight: DRT L_R04_171128
T-CON: 18Y_SHU11APHTA4V0.0 LMY550FN03-A
LED driver (backlight): integrated into PSU
Power Supply (PSU): APS-395 B 1-980-310-21
PWM Power: MIP2H2 (STB)
MainBoard: 1-983-119-11 173703211 YA03054AA
Tuner: CE251ZP
Control: IR: 1-983-299-11 (173709811), WiFi: DNUR-SY3 1-458-959-13
Specifications KD-55XF7096
SONY KD-55XF7096
General recommendations for TV LCD LED repair
Possible manifestations of defects
- SONY KD-55XF7096 does not turn on, indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
With similar manifestations, the APS-395 power supply module usually fails. It is necessary to measure its output voltages, and in the event of their absence (full or partial), the serviceability of the power switches of the converters and rectifier diodes should be checked for a possible short circuit.
In case of breakdowns in the secondary circuits of the converter, it can usually work in an emergency mode in a short circuit mode, and with a short circuit in the power elements of the primary circuit, the mains fuse or current sensor in the source of the key is most often cut off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying a PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM), in the absence of external damage and a short circuit between the terminals, are checked by replacing them with a known good one.
- There is no picture, but there is sound and all other TV functions are working. The image sometimes appears for a second immediately after switching on and disappears.
As a rule, in such cases there is no display backlight. Most often, the reason for this is a break in the LEDs, or poor contact in the connectors of the brackets, less often the LED driver may be faulty.
It is impossible to check the LED bars for a break without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light one 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off, or pierced in the K / Z.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the motherboard 1-983-119-11 should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software).
A faulty tuner CE251ZP is established after checking the software and all supply voltages at its outputs. The I2C bus communication between the tuner and the processor can be monitored with an oscilloscope.
Remember! Attempts to self-repair the SONY KD-55XF7096 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!
Additional MainBoard RepairThe appearance of MainBoard 1-983-119-11 is shown in the figure below:
1-983-119-11
Main features of the SONY KD-55XF7096 device:
Installed matrix (LED panel) YS8S550CND01.
Matrix management uses Timing Controller (T-CON) 18Y_SHU11APHTA4V0.0.
A converter combined with a power supply is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SONY KD-55XF7096 TV is carried out by the APS-395 power module, or its analogs using MIP2H2 (STB) microcircuits.
MainBoard - The main board (motherboard) is a 1-983-119-11 module.
Tuner CE251ZP provides reception of television programs and tuning to channels.
Benefits and improvements:
We fixed an issue where subtitles of some TV service providers were displayed incorrectly;
Improved overall TV stability.
Guides and instructions are also offered for this model:
Reference Manual (Web Manual). Published on 03 Dec 2019.
Other. Published on 31 May 2018, size 49.28 MB.
User's manual. Published on May 29, 2018, size 4.25 MB.
Quick Setup Guide and Quick Start Guide. Published on 22 May 2018, size 2.76 MB.
SONY TV KD-55XF7096 with LCD YS8S550CND01, 54.6 "(139 cm) diagonal, 16: 9 format. The LCD panel uses Direct LED backlighting.
YS8S550CND01 sensor and MainBoard 1-983-119-11 software are capable of realizing images in the highest UHD quality at a resolution of 3840x2160 pixels in 4K UHD, HDR standard. Image processing is performed using modern High Dynamic Range (HDR) technology with an extended range of brightness gradations.
The KD-55XF7096 TV has built-in SMART software and pre-installed Linux Operating System. Internet connection can be made via Wi-Fi wireless connection. Video processor supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), Xvid, DivX, MKV, JPEG.
The power of the sound speaker system is 20 W (2x10 W), provided by two speakers. Uses the NICAM stereo signal processing system and the Sound Surround function.
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. A headphone output is provided.
The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
The power consumed when operating from the network is 183 W. APS-395 / B power supply.
Dimensions: with stand 1242x784x356 mm, without stand 1242x721x80 mm.
TV weight: with stand: 17.4 kg, without stand: 16.2 kg.
Attention! The YS8S550CND01 panel of the SONY KD-55XF7096 LED TV is the most expensive item.
Avoid impacts on the glass and excessive pressure on the screen surface to avoid damage to the LED panel!
It is unsafe for any liquid to spill on the screen. Sometimes one drop of water is enough, if it flows down the glass onto the plumes, the TV may become unrepairable.
