Technical description and composition of the TELEFUNKEN TF-LED19S62T2 TV, panel type and modules used. The composition of the modules.TELEFUNKEN LED
Model: TF-LED19S62T2
Chassis / Version: TP.MS3663S.PA671
Panel: T195XVN01.0
LED backlight: Edge LED
T-CON: M195XTN01.0 Ctrl BD
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB33510CPA
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MOSFET Power: TO-252
MainBoard: TP.MS3663S.PA671
IC MainBoard: CPU: MSD3663LSA-Z1, SPI FLASH MX25L6436F, AUDIO: YD1517P
Tuner: CDT-9NT372-RF01
TF-LED19S62T2 Specifications
TELEFUNKEN TF-LED19S62T2
General recommendations for TV LCD LED repair
Possible malfunctions
- The TELEFUNKEN TF-LED19S62T2 TV does not turn on, does not respond to the remote control and control panel buttons, the indicators do not light up or flash.
In such cases, the AC / DC converter of the mains voltage, which is combined with the main board TP.MS3663S.PA671, is often faulty. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, the serviceability of the power switches (TO-252) and rectifier diodes should be checked for a possible breakdown (short circuit).
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency short-circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor in the source of the key often breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) PWM SOT23-6, in the absence of external damage and a short circuit between the terminals, are checked by replacing them with known good ones.
- There is no picture, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and disappear immediately.
Usually, in such cases, a malfunction is detected in the nodes of the backlight of the LED panel. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.
Repair or diagnostics of the TP.MS3663S.PA671 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - CPU: MSD3663LSA-Z1, SPI FLASH MX25L6436F, AUDIO: YD1517P with new or known good ones. In cases where BGA technologies are used, defects are usually localized by heating.
Before replacing the CDT-9NT372-RF01 tuner, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Users and owners of TVs should remember that attempts to self-repair the TELEFUNKEN TF-LED19S62T2 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> TELEFUNKEN TF-LED19S62T2, Main: TP.MS3663S.PA671, Panel: T195XVN01.0
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Chassis TP.MS3663S.PA671
The appearance of the MainBoard TP.MS3663S.PA671 is shown in the figure below:TP.MS3663S.PA671
Main features of the TELEFUNKEN TF-LED19S62T2 device:
Installed matrix (LED-panel) T195XVN01.0.
Matrix control uses Timing Controller (T-CON) M195XTN01.0.
To power the backlight LEDs, a converter combined with the TP.MS3663S.PA671 main board is used, controlled by the OB33510CPA PWM controller.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using PWM SOT23-6 microcircuits and TO-252 power switches.
MainBoard - the main board (motherboard) is a TP.MS3663S.PA671 module, using CPU chips: MSD3663LSA-Z1, SPI FLASH MX25L6436F, AUDIO: YD1517P and others.
The CDT-9NT372-RF01 tuner provides reception of television programs and tuning to channels.
TV TELEFUNKEN TF-LED19S62T2 with LCD T195XVN01.0, diagonal 19.5 "(50 cm) 16: 9. The brightness of the screen is 200 cd / m² provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 2500 : 1. The technology of production of the screen of this TV model is realized with LED backlighting. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready). Supported media file formats: MP3, WMA, MPEG4, DivX, MKV , JPEG.
The power of the sound system of 6 W (2x3 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), component, VGA, HDMI, USB. A headphone output is provided.
The digital tuner is capable of receiving TV channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Dimensions: with stand 461x307x182 mm, without stand 461x278x66 mm.
TV weight: 1.8 kg.
Attention! Panel T195XVN01.0 LED TV TELEFUNKEN TF-LED19S62T2 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.