Technical description and composition of the SONY KDL-43WG665 TV, panel type and modules used. The composition of the modules.
SONY LED
Model: KDL-43WG665
Chassis / Version: BPE
Panel: NS8S430CN001
LED backlight: LM41-00539A
T-CON: HV430FHB-N1K 47-6021155 HV430FHBN1K
LED driver (backlight): 1-982-711-12 A2201208B (173687812)
PWM LED driver: BD9423EFV
MOSFET LED driver: KUS220N10 TO-252
Power Supply (PSU): Adapter ACDP-085D01
MainBoard: 1-982-629-12 A2229834A (173684512)
IC MainBoard: CPU: MT5581SSEJ
Tuner: CE251ZP
Control: IR: 1-981-873-11, WiFi: DNUR-SY3 1-458-959-13
Specifications KDL-43WG665
SONY KDL-43WG665
General recommendations for TV LCD LED repair
Possible manifestations of defects
- TV SONY KDL-43WG665 does not turn on at all. Control lamps do not light up or blink. The TV on the remote control and control panel buttons does not respond.
With such manifestations, the malfunction is most likely found in the adapter power module.
The power source in this model is an external Adapter ACDP-085D01, usually the owners of TVs can purchase them on their own, and their repair may be impractical. But sometimes it is not difficult to open the unit and eliminate simple typical defects characteristic of most SMPS. 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 any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key is often cut off.
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 picture, there is sound, all other TV functions are working. When turned on, the image may sometimes appear for a second.
As a rule, in such cases there is no display backlight. Often the reason is a malfunction of the LEDs (open circuit, short circuit ...), or connectors of the strips (strings) LM41-00539A, less often the LED driver is faulty.
It is impossible to check the line of series-connected LEDs without a special current source, and it is unsafe for them to use any voltage sources above 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Usually, Chinese multimeters with 9V power supply lightly light up one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, and the black one to the cathode. 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.
- 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 1-982-629-12 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). Often the MB (SSB) board must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: MT5581SSEJ and replace the failed chips with new ones. Some malfunctions can be associated with the use of BGA soldering technologies in modern Main Board. Typically, such defects are detected by local heating of the chip.
If there is no reception of TV channels, but the TV is working properly from external devices, first of all, you need to check the power supply voltage of the CE251ZP tuner and update the software. I2C communication pulses must be monitored with an oscilloscope.
Attention! Users and owners of KDL-43WG665 TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from trying to repair themselves in order to avoid negative consequences that can lead to complete non-repairability of the device.
Additional MainBoard Repair
The appearance of MainBoard 1-982-629-12 is shown in the figure below:
1-982-629-12
Main features of the SONY KDL-43WG665 device:
Installed matrix (LED panel) NS8S430CN001.
Matrix control uses the HV430FHB-N1K Timing Controller (T-CON).
The LED driver 1-982-711-12 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.
To power all internal components of the SONY KDL-43WG665 TV, an external adapter type Adapter ACDP-085D01 is used.
MainBoard - the main board (motherboard) is a 1-982-629-12 module, using CPU chips: MT5581SSEJ and others.
Tuner CE251ZP provides reception of television programs and tuning to channels.
Instructions and updates
Firmware update to v8.582:
File sony_tvupdate_2017_8582_enf_auth.zip, version 8.582 dated 22.06.2020 (290 409 452 bytes).
For models: KDL43WG665, KDL43WG663, KDL50WG665, KDL50WG663, KDL50WF663, KDL43WF663, KDL50WF665, KDL43WF665, KDL50WF660, KDL43WF660.
The update file and instructions can be downloaded from the manufacturer's website for the KDL-43WG665 model.
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 29 Nov 2019.
Other. Published on 28 Nov 2019, size 276 KB.
Directory. Published on 21 Apr 2019, size 1.42 MB.
Other. Published on 07 Apr 2019, size 34.87 MB.
Quick setup guide and quick start guide. Published on 07 Apr 2019, size 1.77 MB.
SONY KDL-43WG665 TV with LCD NS8S430CN001, 42.8 "(109 cm) diagonal 16: 9 format. The LCD panel uses Direct LED backlighting.
The NS8S430CN001 matrix and MainBoard 1-982-629-12 software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution in 1080p (Full HD). Image processing is performed using modern High Dynamic Range (HDR) technology with an extended range of brightness gradations.
KDL-43WG665 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, HEVC (H.265), Xvid, MKV, JPEG.
The power of the sound speaker system is 10 W (2x5 W), provided by two speakers. Uses the NICAM stereo signal processing system and the Sound Surround function.
An external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, HDMI x2, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n, Miracast. A headphone output is provided. 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 mains is 81 W. External power supply Adapter ACDP-085D01.
Dimensions: with stand 974x628x268 mm, without stand 974x572x68 mm.
TV weight: with stand: 8.2 kg, without stand: 7.8 kg.
Attention! The panel NS8S430CN001 of the SONY KDL-43WG665 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.
