Technical description and composition of the TELEFUNKEN TF-LED50S10T2 TV, panel type and modules used. The composition of the modules.TELEFUNKEN LED
Model: TF-LED50S10T2
Panel: V500HJ1-ME1 Rev.C2
LED backlight: V500H1-ME1-TLEM9
T-CON: V500HJ1-XRME1, V500HJ1-XCME1
LED driver (backlight): integrated into PSU
PWM LED driver: AP3041M-G1
MOSFET LED driver: SMK630
Power Supply (PSU): K-PL-L01 - 465R1029SDJB
PWM Power: L6562D, L6599AD
MainBoard: MM20-147WP024-000581 02BW480533B0
TF-LED50S10T2 Specifications
TELEFUNKEN TF-LED50S10T2
General recommendations for TV LCD LED repair
Possible malfunctions
- TELEFUNKEN TF-LED50S10T2 TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or blink, and does not respond to the remote control and control buttons.
Most often, with similar manifestations, the main power module K-PL-L01 is faulty. It is necessary to measure its secondary output voltages, and in their absence, check the serviceability of the power switches of the converters and rectifier diodes for a possible short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in an emergency mode in a short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, supply, frequency setting, damper ... as well as elements of Negative Feedback of stabilization. The PWM microcircuit (PWM) L6562D, L6599AD can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and disappear immediately.
Most likely in these cases is a malfunction of the LED backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
When diagnosing, it must be borne in mind that it is impossible to check for an open in the circuit of the LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally a current source. By opening the panel, you can check each LED separately. Typically, Chinese multimeters light up one 3-volt LED slightly if the probes are connected to it in the forward direction. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or broken into the K / Z.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the MM20-147WP024-000581 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software).
Attention to users! Self-repair of the TELEFUNKEN TF-LED50S10T2 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> K-PL-L01 Power supply
MM20-147WP024-000581
External view of the power supply
Main features of the TELEFUNKEN TF-LED50S10T2 device:
Installed matrix (LED-panel) V500HJ1-ME1 Rev. C2.
Matrix control uses the Timing Controller (T-CON) V500HJ1-XRME1.
A converter combined with a power supply is used to power the backlight LEDs, it is controlled by an AP3041M-G1 PWM controller. The keys of the SMK630 type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the TELEFUNKEN TF-LED50S10T2 TV is carried out by the K-PL-L01 power module, or its analogs using the L6562D, L6599AD microcircuits.
MainBoard - the main board (motherboard) is an MM20-147WP024-000581 module.
TV TELEFUNKEN TF-LED50S10T2 with LCD V500HJ1-ME1, diagonal size 50 "(127 cm) format 16: 9. The brightness of the screen is 320 cd / m² provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 5000 : 1. The LED panel of this TV is equipped with edge LED backlighting.The design and technical capabilities of the TV provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). the video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX , MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080.
The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: 1121x705x291 mm.
TV weight: 18.7 kg.
Attention! Panel V500HJ1-ME1 Rev.C2 LED TV TELEFUNKEN TF-LED50S10T2 is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV non-repairable.
