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-65XE9005

Technical description and composition of the SONY KD-65XE9005 TV, panel type and applicable modules. The composition of the modules.
SONY LED
Model: KD-65XE9005
Panel: YD7S650DND01B
T-CON: 17Y_SGU13TSTLTA4V0.1 N39744C
LED driver (backlight): 1-981-827-11 (A2166064A)
Power Supply (PSU): Adapter ACDP-2401E01 19.5V 240W
MainBoard: 1-982-022-31 (A2170496A)
IC MainBoard: Audio-Board 1-982-024-11 (A2167842A)
Tuner: DVB-T2 & SUT-CE551ZP (D2856ER)
Control: Smart
Technical Specifications KD-65XE9005
SONY KD-65XE9005
General repair guidelines for TV LCD LED
Possible malfunctions
- SONY KD-65XE9005 does not turn on, the indicators on the front panel do not light up and do not blink. The TV does not respond to the control buttons and the remote control.
With such manifestations, the Adapter power module usually fails.
The TV is equipped with an external power source such as Adapter ACDP-2401E01 19.5V 240W. Owners of the TV can check them by replacement and purchase them in stores, but the ability to open and eliminate typical defects usually does not create difficulties for the master. It is then necessary to measure its output voltages and, if they are absent, it is necessary to check the power switches and rectifier diodes of the converters for a short-circuit probability.
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.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately 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 violation of the contact connections of the connectors.
When trying to identify a break in the LED lines, it should be borne in mind 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 1-982-022-31 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software).
The malfunction of the DVB-T2 & SUT-CE551ZP (D2856ER) tuner is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Attention! For users and owners of KD-65XE9005 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.




The appearance of MainBoard 1-982-022-31 is shown in the figure below:
1-982-022-31
Main features of the device SONY KD-65XE9005:
Installed matrix (LED-panel) YD7S650DND01B.
The matrix control uses the Timing Controller (T-CON) 17Y_SGU13TSTLTA4V0.1.
The LED driver 1-981-827-11 is used to power the backlight LEDs.
To power all the internal components of the SONY KD-65XE9005 TV, an external adapter type ACDP-2401E01 19.5V 240W is used.
MainBoard - the main board (motherboard) is a 1-982-022-31 module, using Audio-Board 1-982-024-11 (A2167842A) microcircuits and others.
Tuner DVB-T2 & SUT-CE551ZP (D2856ER) provides the reception of television programs and tuning to channels.

SONY KD-65XE9005 TV with YD7S650DND01B LCD, 65 "(165 cm) diagonal size in 16: 9 format. LCD backlight uses Direct LED backlighting.
The YD7S650DND01B display and software (software) of the 1-982-022-31 board provide for viewing in high quality UHD 4K at a resolution of 3840x2160 pixels in the standard 4K UHD, HDR. Image processing is performed using modern High Dynamic Range (HDR) technologies with an extended range of brightness gradations.

The KD-65XE9005 TV has built-in SMART Software and pre-installed Android Operating System. Connecting to the Internet can be done via Wi-Fi. Video processor supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), Xvid, MKV, JPEG.

The power of the sound speaker system 20 W (2x10 W) is provided by 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 x2, component, HDMI x4, USB x3, Ethernet (RJ-45), Bluetooth, Wi-Fi 802.11n, Miracast. An output for connecting headphones is provided.
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 230 watts.
Overall dimensions: with stand 1447x895x259 mm, without stand 1447x830x60 mm.
TV Weight: with stand: 23.2 kg, without stand: 22 kg.

Attention! The YD7S650DND01B panel of the SONY KD-65XE9005 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.