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.

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Monday 13 April 2020

REPAIR / SERVICING TV ERISSON 26LS16

Technical description and composition of the ERISSON 26LS16 TV, panel type and applicable modules. The composition of the modules.
ERISSON
Model: 26LS16
Chassis / Version: 8D60E
Panel: V260B1-L02 Rev. C1
Inverter (backlight): integrated into PSU
PWM Inverter: SG3525AN
Power Supply (PSU): MIP260B-1
PWM Power: F9222, L656JD
MOSFET Power: 5N50CR, 13N50C
MainBoard: 5800-A8M61A-02
IC MainBoard: MST9U88L-LF - MCU, EN25P40 - flach, HYB25DC128160CE-5 - RAM, TDA9881TS - UPCH, AN17820A - unt
Tuner: TDQ-6F6H / T11B6CWA
Specifications 26LS16
ERISSON 26LS16
General recommendations for repairing TV LCD
ERISSON 26LS16 TV (Telebalt), like any other, it is advisable to start repairing with an examination of the internal and external visible physical visual changes. Visible damage to elements can sometimes suggest further directions for finding a defect before starting the necessary measurements. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
In cases where the ERISSON 26LS16 TV (Telebalt) 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 MIP260B- power supply module is most likely faulty L103 REV.B - PSU or, which is much less common, there is no processor power on the motherboard. It is advisable to start the troubleshooting of the power supply module by checking the mains fuse. If it is torn, it is necessary to check first of all the power semiconductor elements - rectifier diodes and the power switch of the converter, which are often found in a breakdown state in such situations.
The reasons for the breakdown of the power switch of the flyback converter of the power module can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or breakage of the resistors in its bundle.
Diagnostics of power modules with a Power Factor Corrector (CMC) is somewhat more complicated and requires a more detailed approach.
If the ERISSON 26LS16 (Telebalt) has no image, there is sound and the channels are switched, there is a possibility of a malfunction of the display backlight, or their power converter - inverter. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the inverter itself, including in the secondary rectifier of the main PSU.
Diagnosis and repair of the inverter is often complicated by the organization of special protection circuits, which is necessary for fire safety and turns off the inverter in any emergency situation, for example, when the lamps are worn or depressurized. Often, to block a defect, it needs to be locked.
In these cases, special care must be taken in view of the risk of failure of the power elements. After completing all repair work, it is imperative to restore all protection circuits for full and safe further operation of the TV by the user.
Diagnosis and repair of the motherboard is carried out by checking the performance of power stabilizers or updating the software (software). If it is not possible to replace the MB board (SSB), you need to check the health of its elements - MST9U88L-LF - MCU, EN25P40 - flach, HYB25DC128160CE-5 - RAM, TDA9881TS - UPCH, AN17820A - unch, TDQ-6F6H / T11B6CWA - TUNER. Defective components should be replaced.
Owners of the 26LS16 TV (Telebalt) are recommended for repairs to contact only qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH  ----------->   ERISSON 26LS16 (Telebalt) 8D60E, Main: , Panel: V260B1-L02 Rev.C1

 The appearance of the MainBoard 5800-A8M61A-02 is shown in the figure below:
5800-A8M61A-02
5800-A8M61A-02 can be used in TVs:
ERISSON 26LS16 (Panel V260B1-L02 Rev.C1), ERISSON 32LS16 (Panel LTA320WT-L05), ERISSON 37LS16 (Panel LC370WX4 (SL)(A1)), HYUNDAI H-LCD3206 (Panel LTA320WT-L05).
The appearance of the power supply
Main features of the ERISSON 26LS16 device:
Installed matrix (LCD panel) V260B1-L02 Rev. C1.
To power the backlight, a converter is used, combined with the power supply, controlled by the SG3525AN PWM controller.
The required supply voltages for all nodes of the TV ERISSON 26LS16 are generated by the MIP260B-1 power supply module or its analogs using F9222, L656JD microcircuits and power switches of the 5N50CR, 13N50C type.
MainBoard - the main board (motherboard) is a module 5800-A8M61A-02, using microchips MST9U88L-LF - MCU, EN25P40 - flach, HYB25DC128160CE-5 - RAM, TDA9881TS - UPCH, AN17820A - unch and others.
The TDQ-6F6H / T11B6CWA tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: V260B1-L02
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 575.769x323.712 mm
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.2M (6-bit + FRC), CIE1931 72%
Response Time: 3/5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: RSDS (1 Channel), 45 pins

 Trademark: ERISSON, Model: 26LS16.
Briefly from the TV: LCD, 720p HD, diagonal 26 "(66 cm).
The composition uses the MainBoard 5800-A8M61A-02 and the LCD panel (matrix) V260B1-L02 Rev. C1.
Power supply unit (PSU) MIP260B-L103 REV.B - PSU Power Supply.
ERISSON 26LS16 TV with V260B1-L02 LCD display, 26 "(66 cm) diagonal size in 16: 9 format. 550 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. It is possible to 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 analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation takes place in mill Darts 480i, 480p, 576i, 576p.
The power of the sound speaker system 8 W (2x4 W) provide two 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. 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.
Dimensions: With stand 550x443x175 mm, Without stand 550x411x82 mm.
Attention! The ERISSON 26LS16 LCD TV panel V260B1-L02 Rev. C1 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
Posted By: FRANK at 07:07
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