Technical description and composition of the SONY KDL-65W855C TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KDL-65W855C
Panel: T650HVF05.1
LED backlight: 650TV02 V3
T-CON: T650HVN12.3 65T37-C04
LED driver (backlight): integrated into PSU
PWM LED driver: BD9483
Power Supply (PSU): PSLF241401A GL1SB REV0.4 1-474-610-11
MainBoard: 1-980-805-31
IC MainBoard: CPU: Cortex-A12 NEON, EMMC: H26M52103FMR
Tuner: CE241ZP
Technical Specifications KDL-65W855C
SONY KDL-65W855C
General repair guidelines for TV LCD LED
Possible malfunctions
- The SONY KDL-65W855C TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
Most often, with such manifestations, the PSLF241401A main power module is found to be faulty. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches and rectifier diodes of the converters for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke the excess of maximum current or voltage values. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM), in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
In some of these cases, the malfunction is caused by a lack of backlighting on the display. Often the cause of the malfunction is the lack of current in the LED circuit, for example, an open or short circuit, or a violation of the contact connections of the connectors.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the motherboard 1-980-805-31 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the CPU elements: Cortex-A12 NEON, EMMC: H26M52103FMR. BGA chip malfunctions are usually easy to detect by warming up.
Before changing the CE241ZP tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Attention to users! Self-repair of a SONY KDL-65W855C TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
Service Manual 66 pages 2015 for model -----------> KDL-65W850C, KDL-65W855C, KDL-65W857C, KDL-75W850C, KDL-75W855C .chassis GN1G
The appearance of MainBoard 1-980-805-31 is shown in the figure below:1-980-805-31
Main features of the device SONY KDL-65W855C:
The matrix (LED-panel) T650HVF05.1 is installed.
The matrix control uses the Timing Controller (T-CON) T650HVN12.3.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a BD9483 PWM controller.
The formation of the necessary supply voltages for all nodes of the SONY KDL-65W855C TV is carried out by the PSLF241401A power supply module, or its analogs.
MainBoard - the main board (motherboard) is a module 1-980-805-31, using CPU chips: Cortex-A12 NEON, EMMC: H26M52103FMR and others.
The CE241ZP tuner provides TV reception and channel tuning.
Brand: SONY, Model: KDL-65W855C.
Briefly from the TV: LCD, LED backlight, 65 ", 1920x1080, 1080p Full HD, 3D, PIP, DVR, sound: 20W, HDMI: 4, Internet access, Bluetooth, Smart TV.
Producer: Malaysia / Slovakia (Nitra) Developer: Sony Corporation. Japan
On the official site of Sony there is firmware (Firmware) - a software update to version 5.435 from 06.25.2019.
The composition uses MainBoard 1-980-805-31 and LCD-panel T650HVF05.1.
Power Supply Unit (PSU) 1-474-610-11 PSLF241401A GL1SB REV0.4 Power Supply.
SONY KDL-65W855C TV with an LCD display, diagonal size 65 "(165 cm) in 16: 9 format. This model uses side illumination from Edge LEDs.
There is support for 3D images with active (shutter) technology for separating the right and left channels.
The panel and software of the motherboard provide for viewing HD and Full HD pictures at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD).
The KDL-65W855C TV has built-in SMART Software and preinstalled Android TV Operating System. The input analog video signal can be processed in PAL, SECAM, NTSC systems. Graphic processing and image formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Video processor supported media file formats: MP3, WMA, MPEG4, JPEG.
The power of the sound speaker system 20 W (2x10 W) provide 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, audio x2, component, SCART, HDMI x4, MHL, USB x3, Ethernet (RJ-45), Bluetooth. An output for connecting headphones 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.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C standards.
The power consumed by the TV in the operating mode from the network is 230 watts.
Overall dimensions: with stand 1455x891x265 mm, without stand 1455x843x78 mm.
TV Weight: with stand: 24.5 kg, without stand: 23.4 kg.
Attention! The panel of the LED TV SONY KDL-65W855C 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.
