REPAIRING AND NOT THROWING AWAY

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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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Tuesday, 10 March 2020

REPAIR / SERVICING TV SONY KDL-52X2000

 SONY KDL-52X2000 TV with an LTZ520HT-LH2 LCD display, a diagonal size of 52 "(132 cm) in 16: 9 format. A screen brightness of 450 cd / m² is ensured by backlighting with CCFL (EEFL) fluorescent lamps. The ratio of maximum brightness to minimum (contrast) ) is 1500: 1. Dynamic contrast ratio of 7000: 1 is achieved by special control of the backlight.
The LTZ520HT-LH2 panel and the motherboard software 1-871-615-12 provide for viewing HD and Full HD images at a resolution of 1920x1080 pixels in a graphical decomposition according to the 1080p standard (Full HD). 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.
The power of the sound speaker system 22 W (2x11W) 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 x4, S-Video, component x2, SCART x3, RGB, VGA, HDMI x2. 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.
A digital tuner is capable of receiving television channels in DVB-T standards.
The power consumed by the TV in operating mode from the network is 290 watts.
Overall dimensions: with stand 1415x890x384 mm, without stand 1415x827x123 mm.
TV Weight: with stand: 54 kg, without stand: 46 kg.
Attention! The LTZ520HT-LH2 panel of the SONY KDL-52X2000 LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!

 Service Manual 94 pages for  the model KDL-40X2000, KDL-46X2000, KDL-52X2000



Technical description and composition of the SONY KDL-52X2000 TV, panel type and applicable modules. The composition of the modules.
SONY
Model: KDL-52X2000
Chassis / Version: 1-871-615-12
Panel: LTZ520HT-LH2
Inverter (backlight): INVST520B
Power Supply (PSU): 1-870-864-13 (A1231579C) & 1-870-866-11 (A1208985A)
MainBoard: 1-871-615-12 A1214819B
Tuner: 1-869-657-12 - 172714612
Technical Specifications KDL-52X2000
SONY KDL-52X2000
General recommendations for repairing TV LCD
Main features of the device SONY KDL-52X2000:
Installed matrix (LCD panel) LTZ520HT-LH2.
The INVST520B inverter is used to power the backlight.

The formation of the necessary supply voltages for all nodes of the SONY KDL-52X2000 TV is carried out by the power module 1-870-864-13, or its analogues.
MainBoard - the main board (motherboard) is a module 1-871-615-12.
The tuner 1-869-657-12 - 172714612 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: S-LCD
Model: LTZ520HT-LH2
Type: a-Si TFT-LCD, Panel
Diagonal size: 52 inch
Resolution: 1920x1080, FHD
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 1152x648 mm
Posted By: FRANK at 02:34
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