REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Tuesday, 10 March 2020

REPAIR / SERVICING TV SONY KD-65XD9305

Technical description and composition of the SONY KD-65XD9305 TV, panel type and applicable modules. The composition of the modules.
SONY LED
Model: KD-65XD9305
Chassis / Version: GN2SK
Panel: YD6S650STN01
T-CON: 6B01B002XK500 INNOLUX
LED driver (backlight): 16ST064A-AB01
Power Supply (PSU): 1-980-884-11
MainBoard: 1-980-833-11 A2094415A & 1-980-840-11 (DPS)
IC MainBoard: CPU, DRAM, AUDIO
Tuner: CE541ZP
Control: S.Mode: Display 5 Vol + Power
Technical Specifications KD-65XD9305
SONY KD-65XD9305
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The SONY KD-65XD9305 TV does not turn on and does not show any signs of turning on, it does not respond to the control buttons or to the remote control.
Often in such cases, the power module 1-980-884-11 is faulty. It is necessary to measure its output voltages, and in case of their absence (full or partial), it is necessary to check the serviceability of the power switches of the converters and rectifier diodes for the presence of a possible short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits are usually checked by replacement with new ones, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
Usually in such cases there is no backlight LED-panel (matrix). Often the cause is a malfunction of the LEDs (open circuit, short circuit ...), or the connectors of the strips (strings), less often the LED driver is malfunctioning.
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 TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the motherboard 1-980-833-11 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). In cases of complex repairs of MB (SSB) and with the necessary skills and equipment, sometimes it may be necessary to replace its CPU, DRAM, AUDIO chips and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
If the TV works normally from external devices, but does not tune into television channels, the CE541ZP 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.
Attention to users! Self-repair of a SONY KD-65XD9305 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!


Service schematic manual ------------------>  SONY KD-65XD9305 Chassis GN2SK

 Service Manual 176 pages 2016 for  model ----------------------> KD-55XD9305, KD-65XD9305

 The appearance of MainBoard 1-980-833-11 is shown in the figure below:
1-980-833-11
Main features of the device SONY KD-65XD9305:
Installed matrix (LED panel) YD6S650STN01.
The matrix control uses the Timing Controller (T-CON) 6B01B002XK500.
The LED driver 16ST064A-AB01 is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SONY KD-65XD9305 TV is carried out by the power module 1-980-884-11, or its analogs.
MainBoard - the main board (motherboard) is a module 1-980-833-11, using CPU, DRAM, AUDIO, and others.
The CE541ZP tuner provides TV reception and channel tuning.


 Trademark: SONY, Model: KD-65XD9305.
Briefly from the TV: LCD, LED backlight, 65 ", 3840x2160, 4K UHD, HDR, 3D, DVR, sound: 30W, HDMI: 4, Internet access, Wi-Fi, 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 1-980-833-11 A2094415A & 1-980-840-11 (DPS) and LCD-panel YD6S650STN01.
Power Supply Unit (PSU) 1-980-884-11 Power Supply.
SONY KD-65XD9305 TV with a YD6S650STN01 LCD, 65 "(165 cm) diagonal size 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 YD6S650STN01 display and software (software) of the 1-980-833-11 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-65XD9305 TV has built-in SMART Software and preinstalled Android TV Operating System. Connecting to the Internet can be done via Wi-Fi. 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, 2160p. Video processor supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.

Power sound system 30 W (4x7.5 W) provide 4 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, component, SCART, HDMI x4, USB x3, Ethernet (RJ-45), Bluetooth, Wi-Fi 802.11n, Miracast. 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, 3840x2160.
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 225 watts.
Dimensions: with stand 1458x891x275 mm, without stand 1458x839x36 mm.
TV Weight: with stand: 32.1 kg, without stand: 28.9 kg.
Attention! The YD6S650STN01 panel of the SONY KD-65XD9305 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.