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 !

Tuesday 31 December 2019

REPAIR / SERVICING TV SAMSUNG UE32J5000AK

Technical description and composition of the SAMSUNG UE32J5000AK TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE32J5000AK UE32J5000
Chassis / Version: Ver - US02
Panel: CY-JJ032BGLV1V
LED backlight: 2015 SVS32 FHD F-COM 7LEDS REV1.3 150223 LM41-00134A
T-CON: BN41-02111A BN95-02146B
LED driver (backlight): with integrated PSU
Power Supply (PSU): A5919_FSM Adapter 19V 3.17A - BN44-00838A A5919_FSM
MainBoard: BN41-02358A BN94-08230A
IC MainBoard: NAND: F59L1G81A-25TI, DDR: K4B2G1646Q-BCK0, FLASH: W25Q40CLSIP, EPRROM: S24C256
Tuner: BN40-00316A DNTS403H5A
Control: IR: BN41-02398A A36076G
Appearance
SAMSUNG UE32J5000AK
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE32J5000AK does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
In such cases, the adapter power supply is usually faulty.
The external adapter 19V 3.17A - BN44-00838A A5919_FSM power supply is not always subject to repair, especially since the owner can purchase it independently. But, in some cases, it makes sense to open it and eliminate the simple typical defects inherent in converters in pulsed sources. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches and rectifier diodes of the converters for the probability of a short circuit.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
The breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback (OOS) stabilization circuits. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- There is no image, there is sound, there is a reaction to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
In some of these cases, a malfunction is caused by a lack of display backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN-junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the BN41-02358A motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, you should update or replace the software (software). When repairing an MB board, you must check its components NAND: F59L1G81A-25TI, DDR: K4B2G1646Q-BCK0, FLASH: W25Q40CLSIP, EPRROM: S24C256. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
Malfunction of the tuner BN40-00316A DNTS403H5A 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 TV owners! Attempts to self-repair SAMSUNG UE32J5000AK are not recommended by the manufacturer and can lead to serious negative consequences!


FIRMWARE  Main, T-con ----------> SAMSUNG UE32J5000AK UE32J5000, Main: BN41-02358A BN94-08230A, Panel: CY-JJ032BGLV1V



The appearance of the MainBoard BN41-02358A is shown in the figure below:
BN41-02358A
The appearance of the power supply
Main features of the SAMSUNG UE32J5000AK device:
Installed matrix (LED panel) CY-JJ032BGLV1V.
The matrix control uses the Timing Controller (T-CON) BN41-02111A.
To power the backlight LEDs, a converter is used, combined with a power supply.
An external source of the type A5919_FSM Adapter 19V 3.17A - BN44-00838A A5919_FSM is used to power all internal nodes of the SAMSUNG UE32J5000AK TV.
MainBoard - the main board (motherboard) is a BN41-02358A module, using NAND chips: F59L1G81A-25TI, DDR: K4B2G1646Q-BCK0, FLASH: W25Q40CLSIP, EPRROM: S24C256 and others.
The tuner BN40-00316A DNTS403H5A provides the reception of television programs and tuning to channels.


Posted By: FRANK at 07:50
TAG: , , , ,