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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Wednesday 15 April 2020

REPAIR / SERVICING TV ERISSON 32LEE01

Technical description and composition of the ERISSON 32LEE01 TV, panel type and applicable modules. The composition of the modules.
ERISSON LED
Model: 32LEE01
Chassis / Version: T.MS6M181.6A
Panel: 720p HD, 1366x768
MainBoard: T.MS6M181.6A
IC MainBoard: CPU: MST6E181VS-LF-Z1; SPI Flash: W25Q32;
Tuner: CDT-3SP5F3-36
Specifications 32LEE01
ERISSON 32LEE01
General repair guidelines for TV LCD LED
Repair of electronic equipment usually begins with its external inspection and diagnosis of the malfunction. In this case, you should examine all the internal components of the ERISSON 32LEE01 TV, as well as the external elements of the housing. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. 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 significant clue in the assumptions about the causes and consequences of the malfunction.
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 standby power. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. When it is broken, the power elements of transistors and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the ERISSON 32LEE01 does not have an image, but there is sound, there may be a malfunction of the backlight LEDs of the 720p HD, 1366x768 panel or their power converter.
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.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
The motherboard T.MS6M181.6A must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU elements: MST6E181VS-LF-Z1; SPI Flash: W25Q32; It requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
Once again, remind users! Attempts to self-repair a TV ERISSON 32LEE01 without the appropriate qualifications and experience can lead to its complete unrepairability!


FIRMWARE FOR SPI FLASH  ----------->   ERISSON 32LEE01 , Main: T.MS6M181.6A, Panel: 720p HD, 1366x768

 The appearance of MainBoard T.MS6M181.6A is shown in the figure below:
Repairing the motherboard T.MS6M181.6A, which uses the multi-function processor MST6M181VS, combined with a scaler, it is advisable to start by checking the power supply of the standby mode (Stand-by), which is implemented using a separate linear stabilizer 3.3V. Further, in the operating mode, it is necessary to check the operability of linear stabilizers or voltage converters necessary to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. A voltage of 2.5V is required to power the DDR W9425G6JH memory. If there is a backlight and no image, the power of the LCD panel 5V or 12V, depending on the type of panel used, it is advisable to measure directly on the LVDS connector. If the TV does not exit Stand-by, does not respond to the remote control and control buttons, update the SPI FLASH software.
T.MS6M181.6A can be used in TVs:
AKAI LTA-32L09P (Panel LTA320AP05), ERISSON 32LEN60 (Panel LTA320AN01 D02 ), ERISSON 32LEE01 (Panel 720p HD 1366x768), HAIER LE32Z50 (Panel T315XW06 V5), Hyundai H-LED32V6 (Panel HV320WXC-100), HYUNDAI H-LEDVD32V6 (Panel V320BJ2-P01), HYUNDAI H-LED32V16 (Panel CX315LEDM).
Main features of the ERISSON 32LEE01 device:
Installed matrix (LED-panel) 720p HD, 1366x768.
The required supply voltage for all nodes of the TV ERISSON 32LEE01 provides a switching power supply.
MainBoard - the main board (motherboard) is a module T.MS6M181.6A, using CPU chips: MST6E181VS-LF-Z1; SPI Flash: W25Q32; and others.
Tuner CDT-3SP5F3-36 provides the reception of television programs and tuning to channels.
Trademark: ERISSON, Model: 32LEE01.
Briefly from the TV: LCD, 720p HD, 32 "(81 cm) diagonal, USB, backlight type: Edge LED.
The composition uses MainBoard T.MS6M181.6A and an LCD panel (matrix) 720p HD, 1366x768.
ERISSON 32LEE01 TV with an LCD display of 720p, 32 "(81 cm) diagonal size of 16: 9 format. The required brightness of the screen is 350 cd / m² by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 4000: 1. The LED panel of this TV is equipped with an end LED backlight - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog P systems AL, SECAM. Graphic processing and digital signal generation is performed in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, JPEG. Stereo sound is realized by two built-in speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, USB. 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.
Overall dimensions: With stand 769x536x196 mm, Without stand 769x485x50 mm.
Attention! The 720p HD, 1366x768 panel of an ERISSON 32LEE01 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.