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 !

Sunday 15 March 2020

REPAIR / SERVICING TV SHARP LC-32AD5E-BK

Technical description and composition of the SHARP LC-32AD5E-BK TV, type of panel and applicable modules. The composition of the modules.
SHARP
Model: LC-32AD5E-BK
Panel: LK315T3LZ5CZ
T-CON: X3562TP XE
Inverter (backlight): IM3832A
PWM Inverter: BD9883
MOSFET Inverter: RSS085N05
Power Supply (PSU): CEF273A
PWM Power: MIP2F4 (Standby), MP2A5060
MainBoard: CMF111A
Control: 010240
Appearance
SHARP LC-32AD5E-BK
General recommendations for repairing TV LCD
Repair SHARP LC-32AD5E-BK must begin with the diagnosis of the malfunction and a thorough examination of its external and internal components, including the case. Sometimes, only by some signs can we determine the further direction of the localization of the malfunction. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a hint in the assumptions about the causes and consequences of the malfunction.
Faults in the CEF273A power supply module can be expressed in different ways, for example, the SHARP LC-32AD5E-BK does not turn on at all and the control lights on its front panel do not light up and do not blink, and there are no signs of operability. When diagnosing and repairing the CEF273A power supply, first of all, it is necessary to check the fuse, and if it is broken, the power switch and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be remembered that in the practice of repair, usually the power keys of N-Fet converters do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
In cases using a power module with an active KKM, troubleshooting is sometimes somewhat more complicated.
If the SHARP LC-32AD5E-BK does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Often, attempts to repair the IM3832A inverter are hampered by the fact that the fault diagnosis is complicated by the operation of its protection, which is designed to turn off the inverter in emergency conditions - when the lamps are depressurized, breaks or short circuits in high-voltage connections and other emergency situations. Lock protection to localize the defect is popular among repairmen.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
Repair or diagnostics of the CMF111A motherboard should be started by checking the power conditioners. If necessary, you should update the software (software).
Once again, remind users! Attempts to self-repair a TV SHARP LC-32AD5E-BK without the appropriate qualifications and experience can lead to its complete non-repairability!



Service manual / schematic diagram -------------->  
Sharp LC-32AD5E-BK




 Main features of the SHARP LC-32AD5E-BK device:
Installed matrix (LCD panel) LK315T3LZ5CZ.
The matrix control uses the Timing Controller (T-CON) X3562TP.
To power the backlight, an IM3832A inverter is used, it is controlled by the BD9883 PWM controller. As power elements of the inverter, keys of the type RSS085N05 are used.
The necessary supply voltages for all nodes of the SHARP LC-32AD5E-BK TV are generated by the CEF273A power module or its analogs using MIP2F4 (Standby), MP2A5060 microcircuits.
MainBoard - the main board (motherboard) is a CMF111A module.
Information from an alternative source:
SHARP LC-32AD5E-BK
Panel Type (Matrix): LK315T3LZ5CZ
Motherboard: CMF111A
T-con: X3562TP XE, CARD READER: CEF243A
Invertor: IM3832A
PSU: CEF273A
Remote control: 010240
Additional technical information about the panel:
Brand: SHARP
Model: LK315T3LZ5CZ
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: ASV, Normally Black
Active Area: 697.68x392.26 mm