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.

How to use the site:
- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Friday, 6 March 2020

REPAIR / SERVICING TV SONY KDL-26S2010

Technical description and composition of the TV SONY KDL-26S2010, type of panel and applicable modules. The composition of the modules.
SONY
Model: KDL-26S2010
Chassis / Version: WAX2
Panel: LTY260W2-L1
T-CON: 260w3c4lv2.5.
Inverter (backlight): CSN304-00 A06-126290E PCB2680 26
PWM Inverter: BD9886FV
MOSFET Inverter: RSS070N05
Power Supply (PSU): APS-220 - 1-869-132-31 - 1-468-980-13
PWM Power: FA5501AN (PFC), MIP2H2, CXD9841M
MOSFET Power: 2SK3561, 2SK3934
MainBoard: 1-869-850-15
IC MainBoard: CXA2069, MSP4410
Tuner: BTD-HF431Z TUNER BOARD 1-869-657-12
Technical Specifications KDL-26S2010
SONY KDL-26S2010
General recommendations for repairing TV LCD
Like any other TV, SONY KDL-26S2010 it is advisable to start repairing with an external inspection for visible changes in the external and internal elements. Many visible signs make it possible to determine the future direction of troubleshooting and localization of the defect. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when turned on, there is a certain probability that the power module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, but this happens much less often. The diagnostics of the power supply should always be started by checking the fuse and, if it is broken, it is first necessary to check the rectifier bridge diodes and the power switch for the likelihood of an avalanche or thermal breakdown.
Power switches in flyback converters fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
When using a power factor correction unit (PFC) in the power modules, troubleshooting becomes somewhat more complicated and requires additional experience and knowledge of their operation.
Sometimes the SONY KDL-26S2010 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including the power supply unit (power supply unit).
When repairing the CSN304-00 A06-126290E PCB2680 26 inverter, it is often necessary to disable the protection for diagnostics, which, for fire safety reasons, turns it off in any emergency situation, for example, during a malfunction or uneven wear of the lamps, which makes it difficult to find a defect.
Turning off the protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all regular protection circuits should be restored.
In cases of attempts to repair the motherboard 1-869-852-12, it is necessary to check the operability of the power stabilizers of the microcircuits and, if possible, update the software (software). When repairing an MB board, you need to check its components CXA2069, MSP4410. Defective items should be replaced.
If there is no reception of television channels, but the TV is working properly from external devices, first of all you need to check the voltage of the varicaps of the tuner BTD-HF431Z TUNER BOARD 1-869-657-12, which is usually within 30-33V, as well as other power voltage at the terminals of the tuner.
Remember! Attempts to self-repair by users of the SONY KDL-26S2010 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
Service manual / schematic diagram ------------------->   Sony KDL-23S2010, KDL-26S2010, KDL-32S2010, KDL-40S2010, KDL-46S2010 CHASSIS WAX2

 
Service manual / schematic diagram ------------------->   Sony KDL-26S2000, KDL-32S2000, KDL-40S2000, KDL-46S2000, KDL-26S2010, KDL-32S2010, KDL-40S2010, KDL-46S2010, KDL-26S2020, KDL-32S2020 CHASSIS WAX2

PSU schematic diagram ------------------->   Sony APS-220 Power supply


 The appearance of MainBoard 1-869-850-15 is shown in the figure below:
1-869-850-15
1-869-850-15 can be used on TVs:
SONY KDL-26S2010 (Panel LTY260W2-L1), SONY KDL-32S2000 (Panel LTZ320WS-L05), SONY KDL-40S2530 (Panel LTY400WT-LH1), SONY KDL-46S2530 (Panel LTY460WT-LH3).
The appearance of the power supply
Main features of the device SONY KDL-26S2010:
Installed matrix (LCD-panel) LTY260W2-L1.
The matrix control uses the Timing Controller (T-CON) 260w3c4lv2.5 ..
To power the backlight, an inverter CSN304-00 is used, it is controlled by the BD9886FV PWM controller. As power elements of the inverter, keys of type RSS070N05 are used.
The necessary supply voltages for all nodes of the SONY KDL-26S2010 TV are generated by the APS-220 power supply module or its analogs using FA5501AN (PFC), MIP2H2, CXD9841M microchips and power switches of the type 2SK3561, 2SK3934.
MainBoard - the main board (motherboard) is a module 1-869-850-15, using CXA2069, MSP4410 and others.
Tuner BTD-HF431Z TUNER BOARD 1-869-657-12 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: S-LCD
Model: LTY260W2-L16
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Active Area: 575.769x323.712 mm
Frequency: 60Hz
Lamp Type: CCFL
Posted By: FRANK at 02:23
TAG: , , , ,