Technical description and composition of the TELEFUNKEN TF-LED32S34 TV, panel type and modules used. The composition of the modules.TELEFUNKEN LED
Model: TF-LED32S34
Chassis / Version: TSUMV59-T4C1
Panel: K320WD08 (K320WD08)
LED backlight: 4708-K320WD-A4213K01
T-CON: 32/37 ROW2.1 HD VER 0.1 P / N: 6870C-0442B; TL2357ML 404RP TPS65175
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
MOSFET LED driver: P8010BD
Power Supply (PSU): integrated into MainBoard
PWM Power: LNK6777K
MainBoard: TSUMV59-T4C1
IC MainBoard: CD25Q32B, NXP18275, TPA3020D2
Control: IR: 4707-00L61F-A1213K01
TF-LED32S34 Specifications
TELEFUNKEN TF-LED32S34
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- The TELEFUNKEN TF-LED32S34 TV does not turn on and does not show any signs of operability at all. There is no reaction to either the remote or the front panel control buttons.
A malfunction in such cases should be looked for in the elements of the power source - the mains voltage converter (AC / DC), which is located on the main board MainBoard TSUMV59-T4C1. Its output voltages should be measured and, in their absence, the power switches and rectifier diodes should be checked for the probability of a short circuit in the converters.
In case of breakdowns in the secondary circuits, the converter can work 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 off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can disable it in the key mode, or provoke an excess of the maximum current or voltage values. These can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch can also be the PWM (PWM) LNK6777K. It is checked only by replacing it with a known good one.
- There is no picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and disappears immediately
Most likely in these cases is a malfunction of the LED backlight. 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 go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
Repair or diagnostics of the TSUMV59-T4C1 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). Sometimes it is necessary to check or replace (if necessary) elements of the MainBoard - CD25Q32B, NXP18275, TPA3020D2. In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.
Attention to TV owners! Attempts to repair TELEFUNKEN TF-LED32S34 on your own are not recommended by the manufacturer and can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> TELEFUNKEN TF-LED32S34, Main: TSUMV59-T4C1, Panel: K320WD08
The appearance of the MainBoard TSUMV59-T4C1 is shown in the figure below:TSUMV59-T4C1
Main features of the TELEFUNKEN TF-LED32S34 device:
Installed matrix (LED panel) K320WD08 (K320WD08).
Matrix control uses Timing Controller (T-CON) 32.
To power the backlight LEDs, a converter combined with the TSUMV59-T4C1 main board is used, controlled by the OB3350CP PWM controller. The keys of the P8010BD type are used as the power elements of the LED driver.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using LNK6777K microcircuits.
MainBoard - the main board (motherboard) is a TSUMV59-T4C1 module, using CD25Q32B, NXP18275, TPA3020D2 and others.
TELEFUNKEN TF-LED32S34 TV with LCD K320WD08, 32 "(81 cm) 16: 9. Brightness of 280 cd / m² is provided by LED backlight. Contrast, as the ratio of maximum brightness to minimum brightness, is 3000: 1 The LED panel of this TV is equipped with edge LED backlighting.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in a graphic resolution of 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM , NTSC Graphic processing and digital signal shaping takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i Supported media file formats: MP3, WMA, MPEG4, Xvid, MKV, JPEG.
Speaker power of 16 W (2x8 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
An external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, VGA, HDMI, USB. 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, 1360x768.
Overall dimensions: 730x480x221 mm.
TV weight: 5 kg.
Attention! Panel K320WD08 (K320WD08) LED TV TELEFUNKEN TF-LED32S34 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.