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 18 March 2020

REPAIR / SERVICING TV HAIER LE22M600F

Technical description and composition of the HAIER LE22M600F TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE22M600F
Chassis / Version: MSTV2409-ZC01-01
Panel: LC215DT8A
LED backlight: LED215D40-ZC14-01 (A) Led drv = 32V
T-CON: PANDA215 V03 RUNTKA072ZZPN
LED driver (backlight): integrated into MainBoard
PWM LED driver: AP3039AM-G1, AP3608EM-G1
MOSFET LED driver: MDD1951
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MainBoard: MSTV2409-ZC01-01 M68 / A51566 / 09
IC MainBoard: CPU: TSUMV59XUS, SPI Flash: MX25L3206E, PT2308-S
Technical Specifications LE22M600F
HAIER LE22M600F
General repair guidelines for TV LCD LED
Possible malfunctions
- The HAIER LE22M600F TV does not turn on and does not show any signs of turning on, it does not respond to the control buttons or the remote control.
In such cases, the common power source, the AC / DC voltage converter, which is combined with the elements of the MSTV2409-ZC01-01 main board, is often faulty. It is necessary to measure its output voltages, and in case of their absence, check the operability of the power switches of the converters and rectifier diodes 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.
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 circuits (OOS) of stabilization. PWM controllers (PWM) PWM SOT23-6, if they do not have visible damage to the case and open short circuit between the terminals, are usually checked by replacement.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
As a rule, in such cases there is no display backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
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 TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the MSTV2409-ZC01-01 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: TSUMV59XUS, SPI Flash: MX25L3206E, PT2308-S and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
TV users and owners need to remember that attempts to self-repair a HAIER LE22M600F TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!


To reduce the backlight current in LED drivers with the AP3039AM controller and the AP3608EM terminal stage (AP3039AM-G1 & AP3608EM-G1), the AP3608EM (AP3608E) microcircuit should proportionally increase the resistor from terminal 14 (ISET) to the housing. The maximum current in each channel (in milliamperes) for the Rset resistor (in kilo-ohms) is determined from the ratio 1.194V / Rset. In channels connected in parallel, the currents add up.


FIRMWARE FOR SPI FLASH ---------->   HAIER LE22M600F, Main: MSTV2409-ZC01-01 M68/A51566/09 , Panel: LC215DT8A


The appearance of the MainBoard MSTV2409-ZC01-01 is shown in the figure below:
MSTV2409-ZC01-01
MSTV2409-ZC01-01 can be used in TVs:
BBK LEM1961 (Panel HM185WX1-400), Haier LE32M600 (Panel LK315T3HB94), Haier LE24M600F (Panel M240HTN01.0), HAIER LE22M600F (Panel LC215DT8A), HAIER LE24M660 (Panel V236BJ1-P03), MYSTERY MTV-3022LW (Panel V290BJ1-PE1), MYSTERY MTV-1923LW (Panel HM185WX3-400).
Key Features of HAIER LE22M600F:
Installed matrix (LED-panel) LC215DT8A.
The matrix control uses the PANDA215 Timing Controller (T-CON).
To power the backlight LEDs, a converter is used, combined with the main board MSTV2409-ZC01-01, controlled by the AP3039AM-G1, AP3608EM-G1 PWM controller. As the power elements of the LED driver, keys of the MDD1951 type are used.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using PWM SOT23-6 microcircuits.
MainBoard - the main board (motherboard) is an MSTV2409-ZC01-01 module, using CPU chips: TSUMV59XUS, SPI Flash: MX25L3206E, PT2308-S and others.
Additional technical information about the panel:
Brand: PANDA
Model: LC215DT8A
Type: a-Si TFT-LCD, CELL
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Antiglare, Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.7% (with Polarizer)
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 5 (Tr + Td)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V


HAIER LE22M600F TV with LC215DT8A LCD display, diagonal size 22 "(56 cm) 16: 9 format. The required brightness of the screen is 180 cd / m² LED backlight LED. Dynamic contrast 4000000: 1 is achieved by special control of the LEDs. In LED- The front panel of this TV is equipped with LED end lighting - Edge LED.The design and technical capabilities of the TV provide for viewing broadcasts and films in high quality HD with a resolution of 1920x1080 pixels in a graphic resolution according to the standard 1080p (Full HD). High-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, JPEG.
The power of the sound system 6 W (2x3 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, audio x2, component, VGA, HDMI x2, 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, 1280x1024, 1360x768, 1920x1080.
Overall dimensions: With stand 513x360x160 mm, Without stand 513x318x36 mm.
Attention! The panel of the LC215DT8A HAIER LE22M600F 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.