Technical description and composition of the SONY KD-49XG7096 TV, panel type and modules used. The composition of the modules.
SONY LED
Model: KD-49XG7096
Panel: YS9S049HNG01
LED backlight: LB49024 V0_00 4-725-887
T-CON: 6870C-0814A 43 6871L-5988B V19
LED driver (backlight): 1-981-457-16 173638816
PWM LED driver: BD9423EFV
MOSFET LED driver: KUS220N10 TO-252
Power Supply (PSU): Adapter 19.5V AC / DC ACDP-160D02
MainBoard: 1-983-119-22 (173703222)
IC MainBoard: CPU, eMMC, AUDIO, DC / DC
Tuner: CE251ZP
Specifications KD-49XG7096
SONY KD-49XG7096
General recommendations for TV LCD LED repair
Possible manifestations of defects
- SONY TV KD-49XG7096 does not turn on at all. No response to the remote control and front panel control buttons. Indicator lamps do not light up or flash.
In some of these cases, the problem is found in the adapter power supply module.
An external power supply adapter 19.5V AC / DC ACDP-160D02 type can be purchased by the owner of the TV on his own and its repair is not always expedient. In any case, the simplest typical defects characteristic of most SMPS circuits can be easily detected and eliminated after opening. Its output voltages should be measured and, in their absence, the serviceability of the power switches and rectifier diodes in the converters should be checked for possible breakdown.
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor in the source of the key is often cut off.
The breakdown of power switches (MosFet) in switching sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency setting or damper, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM controllers (PWM), if they do not have visible damage to the case and an outright short circuit between the terminals, are usually checked by replacing.
- There is no image, there is sound, it reacts to the remote control, the channels are switched. In some cases, the image appears when turned on and disappears immediately.
As a rule, in this case, the backlight of the LED panel is faulty. The reason may be found in a malfunction of the LEDs, in a violation of the contact connections of the LED strips LB49024 V0_00 4-725-887, or in providing their power supply (LED driver).
When diagnosing, it must be borne in mind that it is impossible to check for an open in the circuit of the LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally a current source. Opening the panel, you can check each LED separately. Typically, Chinese multimeters will lightly light one 3-volt LED when the probes are connected to it in the forward direction. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off, or broken through in the K / Z.
In cases where SONY KD-65XD8599 does not have a picture, but there is sound, the display backlight often does not work.
In LED TVs, the LEDs inside the V650QWME01 panel are usually faulty, and less often the LED driver.
Without backlighting, sometimes you can see a barely noticeable image with a certain successful hit of external light on the screen.
Replacing the LEDs requires disassembling the V650QWME01 panel. We do not recommend such works on their own to TV owners and craftsmen who do not have experience in repairing LCD panels, especially at home. (Yes those home grown geniuses are the worst)
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and on an open TV, the light is visible through the holes in the panel case.
In this case, the T-CON (Timing Controller) board may be faulty, but often the MainBoard 1-980-832-11 is also faulty. A software failure is also possible. The panel can also be faulty - damage to strips, loops, for example, after moisture. In such cases, first of all, it is necessary to check the panel supply voltage at the LVDS connector, fuses on the T-CON board or panel brackets, as well as supply and reference voltages for column and line drivers - VGH, VGL, Vcom.
If they are within normal limits, then the oscilloscope needs to track the passage of LVDS signals from MainBoard 1-980-832-11, as well as synchronizing signals to the loops with drivers.
Flooded screens of LED TVs can sometimes be restored if significant damage has not formed in the loops and on the panel trims.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the motherboard 1-983-119-22 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). When repairing an MB board, it is necessary to check its components CPU, eMMC, AUDIO, DC / DC. Defective elements must be replaced. If chips with BGA soldering technology are used, the problem in its implementation is detected by local heating of the chip.
If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the terminals of the CE251ZP tuner match. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.
Attention to TV owners! Attempts to repair SONY KD-49XG7096 on your own are not recommended by the manufacturer and can lead to serious negative consequences!
Additional MainBoard Repair
The appearance of MainBoard 1-983-119-22 is shown in the figure below:
1-983-119-22
Main features of SONY KD-49XG7096 device:
Installed matrix (LED-panel) YS9S049HNG01.
Matrix control uses the 6870C-0814A Timing Controller (T-CON).
The LED driver 1-981-457-16 is used to power the backlight LEDs, it is controlled by the PWM controller BD9423EFV. KUS220N10 TO-252 keys are used as power elements of the LED driver.
An external adapter 19.5V AC / DC ACDP-160D02 is used to power all internal components of the SONY KD-49XG7096 TV.
MainBoard - the main board (motherboard) is a 1-983-119-22 module, using CPU, eMMC, AUDIO, DC / DC and others.
Tuner CE251ZP provides reception of television programs and tuning to channels.
Instructions and updates
Firmware update to version 5.435:
File sony_tvupdate_2015_5435_eub_auth.zip, version 5.435 dated 06/26/2019 (1 644 778 348 bytes).
For models: KD-75XD9405, KD-65XD9305, KD-55XD9305, KD-85XD8505, KD-75XD8505, KD-65XD8505, KD-65XD8577, KD-65XD8599, KD-55XD8505, KD-55XD8577, KD-55XD8588, KD-55XD8599, KD-65SD8505, KD-55SD8505, KD-75X9405C, KD-65X9305C, KD-55X9305C, KD-75X9105C, KD-65X9005C, KD-55X9005C, KD-75X8501C, KD-75X8505C, KD-65X8501C, KD-65X8505C, KD-65X8507C, KD-65X8508C, KD-65X8509C, KD-55X8501C, KD-55X8505C, KD-55X8507C, KD-55X8508C, KD-55X8509C, KD-49X8301C, KD-49X8305C, KD-49X8307C, KD-49X8308C, KD-49X8309C, KD-43X8301C, KD-43X8305C, KD-43X8307C, KD-43X8308C, KD-43X8309C, KD-55X8005C, KD-49X8005C, KD-65S8505C, KD-55S8505C, KD-65S8005C, KD-55S8005C.
The update file and instructions can be downloaded from the manufacturer's website for the kd-49xg7096 model.
Benefits and improvements of the latest update:
Latest Android security updates.
Guides and instructions are also offered for this model:
Reference Manual (Web Manual). Published on 22 Jul 2019.
Reference Manual (Web Manual). Published on 22 Feb 2017.
Directory. Published on 17 Feb 2017, size 6.9 MB.
Quick setup guide and quick start guide. Published on 19 May 2016, size 3.07 MB.
Wall-Mount Bracket. Published on 26 Apr 2016, size 40.62 MB.
SONY TV KD-65XD8599 with LCD V650QWME01, 65 "(165 cm) diagonal, 16: 9 format. This model uses Edge LED side illumination.
The V650QWME01 sensor and MainBoard 1-980-832-11 software are capable of realizing images in the highest UHD quality at a resolution of 3840x2160 pixels in 4K UHD, HDR. Image processing is performed using modern High Dynamic Range (HDR) technology with an extended range of brightness gradations.
KD-65XD8599 TV has built-in SMART software and pre-installed Android TV operating system. Internet connection can be made via Wi-Fi wireless connection. The input analog video signal can be processed in PAL, SECAM, NTSC systems. Graphic processing and formation of a digital signal picture occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p. Video processor supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Sound speaker power 20 W (2x10 W) is provided by two speakers. Uses the NICAM stereo signal processing system and the Sound Surround function.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x4, USB x3, Ethernet (RJ-45), Bluetooth, Wi-Fi 802.11n, Miracast. A headphone output is provided. To connect an analog computer or laptop to this TV model, a VGA (D-Sub 15) connector is used, which supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080, 3840x2160. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.
The power consumed when operating from the network is 214 W. APS-404 power supply.
Dimensions: with stand 1454x894x279 mm, without stand 1454x842x44 mm.
TV weight: with stand: 23.9 kg, without stand: 20.3 kg.
Attention! The panel V650QWME01 of the SONY KD-65XD8599 LED TV is the most expensive element.
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.
