Technical description and composition of the TELEFUNKEN TF-LED39S8 TV, panel type and modules used. The composition of the modules.TELEFUNKEN LED
Model: TF-LED39S8
Chassis / Version: V59MS-T9B
Panel: K390WD6
LED backlight: 4708-K390WB-A1213K11, KTC K390WD-A, 4708-K390WB-A1213K11, KTC K390WD-B
LED driver (backlight): K-6L-AP2, 4710-AP3041-A2233K01
Power Supply (PSU): 4701-2150S1-A9135D01
MainBoard: V59MS_T9B 4704-59MST9-A6233K01 rev A6
IC MainBoard: CPU: TSUMV59, SPI Flash: 25Q32, Audio: TPA3110D2
Tuner: NoName
Control: 4707-320L61-A1133K01
TF-LED39S8 Specifications
TELEFUNKEN TF-LED39S8
General recommendations for TV LCD LED repair
Possible malfunctions
- TELEFUNKEN TF-LED39S8 TV does not turn on at all. There is no reaction either to the remote control or to the control buttons from the front panel. Indicator lamps do not light up or flash.
In such cases, the fault should be looked for first of all in the power module 4701-2150S1-A9135D01. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches and rectifier diodes in the converters for a short circuit.
In case of thermal or avalanche breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often immediately breaks and, less often, the current sensor at the source of the key.
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) can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no picture, there is sound, it reacts to the remote control, the channels are switched. In some cases, the image appears when turned on and disappears immediately.
A malfunction is usually in these cases most likely in the backlight units of the display matrix. The reason may 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.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and a voltage of several tens of volts is required to open their junctions. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Typically, Chinese multimeters lightly light one 3-volt LED if you connect the probes to it in the forward direction (red probe to the anode, black to the cathode). 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, the indicator signals standby or operating mode, or blinks.
Repair or diagnostics of the V59MS_T9B 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).
Before changing the Tuner tuner, if it is not possible to tune to TV channels, you should make sure that there are supply voltages, which must be measured at the corresponding tuner terminals and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be monitored with an oscilloscope
We remind users again! Attempts to repair the TELEFUNKEN TF-LED39S8 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> TELEFUNKEN TF-LED39S8, Main: V59MS_T9B 4704-59MST9-A6233K01 rev A6, Panel: K390WD6
The appearance of MainBoard V59MS_T9B is shown in the figure below:V59MS_T9B
External view of the power supply
The main features of the TELEFUNKEN TF-LED39S8 device:
Installed matrix (LED panel) K390WD6.
The LED driver K-6L-AP2 is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the TELEFUNKEN TF-LED39S8 TV is carried out by the power module 4701-2150S1-A9135D01, or its analogues.
MainBoard - the main board (motherboard) is a V59MS_T9B module, using CPU chips: TSUMV59, SPI Flash: 25Q32, Audio: TPA3110D2 and others.
Tuner NoName provides reception of television programs and tuning to channels.
TELEFUNKEN TF-LED39S8 TV with LCD K390WD6, 39 "(99 cm) 16: 9. Brightness of 330 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum brightness, is 4000: 1 The LED panel of this TV is equipped with Edge LED backlighting.The design and technical capabilities of the TV provide viewing of programs and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution in accordance with the standard 1080p (Full HD) .Input high-frequency or 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 x2, component, VGA, HDMI x2, USB x2. 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.
Overall dimensions: 886x574x220 mm.
TV weight: 9 kg.
Attention! Panel K390WD6 LED TV TELEFUNKEN TF-LED39S8 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.