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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Friday, 17 April 2020

REPAIR / SERVICING TV ERISSON 19LES68

Technical description and composition of the ERISSON 19LES68 TV, panel type and applicable modules. The composition of the modules.
ERISSON LED
Model: 19LES68
Chassis / Version: 5800-A5M63E-OP10
Panel: V185BJ1-LE1 Rev. C1
MainBoard: 5800-A5M63E-OP10
IC MainBoard: CPU: MSD6306PUN; SPI Flash: 25Q32;
Specifications 19LES68
ERISSON 19LES68
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular ERISSON 19LES68, it is advisable to start with a careful external examination of internal and external elements. Visible damage to the elements can sometimes indicate the direction of the search for the defect even before the necessary measurements. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
In cases where the ERISSON 19LES68 TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the power module is most likely faulty or there is no processor power on motherboard (a typical defect of some ERISSON TV models). In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
In cases where the ERISSON 19LES68 TV has lost the image, and the sound is there and all the other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the backlight LEDs of the V185BJ1 -LE1 Rev.C1 panel). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
The motherboard 5800-A5M63E-OP10 must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
If it is not possible to replace the MB (SSB) card, you must check the health of its elements - CPU: MSD6306PUN; SPI Flash: 25Q32; . Defective components should be replaced.
Attention to users! Self-repair of an ERISSON 19LES68 TV without the appropriate qualifications and experience can lead to its complete non-repairability!


FIRMWARE FOR SPI FLASH  ----------->   ERISSON 19LES68 , Main: 5800-A5M63E-OP10, Panel: V185BJ1 -LE1 Rev.C1

 The appearance of the MainBoard 5800-A5M63E-OP10 is shown in the figure below:
5800-A5M63E-OP10
5800-A5M63E-OP10 can be used in TVs:
ERISSON 24LES68 (Panel 720p HD 1366x768), ERISSON 19LES68 (Panel V185BJ1-LE1 Rev.C1), TELEFUNKEN TF-LED24S13 (Panel V236BJ1-LE2 Rev.C1).
Main features of the ERISSON 19LES68 device:
Installed matrix (LED panel) V185BJ1-LE1 Rev.C1.
The required supply voltage for all nodes of the TV ERISSON 19LES68 provides a switching power supply.
MainBoard - the main board (motherboard) is a 5800-A5M63E-OP10 module, using CPU chips: MSD6306PUN; SPI Flash: 25Q32; and others.
Additional technical information about the panel:
Brand: INNOLUX
Model: V185BJ1-LE1
Type: a-Si TFT-LCD, Panel
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 9 (G to G)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
ERISSON 19LES68 TV with V185BJ1-LE1 LCD display, 19 "(48 cm) diagonal size in 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 3000: 1. Edge LED backlighting is realized in the LED-panel of this TV - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in an analog system . Ah PAL, SECAM, NTSC Image processing and the formation of the digital signal is in 480i standards, 480p, 576i, 576p, 720p, 1080i Supported multimedia file formats:. MP3, WMA, MPEG4, DivX, MKV, JPEG.
The power of the sound system 4 W (2x2 W) 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, VGA, HDMI, MHL, USB x2. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: 445x299x120 mm.
The mass of the TV: 2 kg.
Attention! The V185BJ1-LE1 Rev.C1 panel of an ERISSON 19LES68 LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.