Technical description and composition of the TELEFUNKEN TF-LED32S6 TV, type of panel and applicable modules. The composition of the modules.TELEFUNKEN LED
Model: TF-LED32S6
Chassis / Version: TP.VST59S.P89
Panel: CX315DLEDM ST3151A05-5
LED backlight: 01.JL.D3281235-06ES
LED driver (backlight): integrated into PSU
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MOSFET Power: MDF7N60B
MainBoard: TP.VST59S.P89
IC MainBoard: CPU: TSUMV59XES-XG, Spi Flash: W25Q32
Tuner: R620D
Control: IR: 200-CXR-LE32180-0H
Technical Specifications TF-LED32S6
TELEFUNKEN TF-LED32S6
General repair guidelines for TV LCD LED
Possible manifestations of defects
- TELEFUNKEN TF-LED32S6 does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.
In such cases, the common power source, the AC / DC voltage converter, which is combined with the elements of the main board TP.VST59S.P89, is often faulty. Then it is necessary to measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of power switches (MDF7N60B) and rectifier diodes of converters for possible short circuit.
In case of breakdowns of diodes in the secondary circuits, the converter can operate in emergency short circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM SOT23-6 PWM controllers, in the absence of visible damage or obvious short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
A malfunction is usually most likely in these cases at the backlight nodes of the display matrix. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- 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 TP.VST59S.P89 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Sometimes it is necessary to check or replace (if necessary) the elements of the MainBoard board - Cpu: TSUMV59XES-XG, Spi Flash: W25Q32. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
If there is no reception of television channels, but the TV is working properly from external devices, first of all it is necessary to check the voltage of the R620D tuner and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
Attention! For users and owners of TF-LED32S6 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
FIRMWARE SPI FLASH ------------> TELEFUNKEN TF-LED32S6, Main: TP.VST59S.P89, Panel: CX315DLEDM
MainBoard TP.VST59S.P89's appearance is illustrated in the figure below:TP.VST59S.P89
The TP.VST59S.P89 motherboard is associated with a power supply module. It is an independent device made on the basis of the TSUMV59Xxx multifunction processor. The repair of such a card must begin by checking the supply batteries, as well as the proper functioning of the voltage converters and linear stabilizers, necessary to supply certain processor nodes, in particular: +12 V of central power, integrated DDR + 1.8 V of memory and by 3.3 V. The supply voltage of the LCD panel is 5V or 12V. Depending on the type of panel used, it is necessary to check directly on the LVDS connector.
TP.VST59S.P89 can be used in televisions:
AKAI LEA-32A08G (Panel LC320EXN (SE)(E1)), AKAI LEA-28A08W (Panel ST2751A01-1), DEXP 32A3300 (Panel JHD315GH-E52), DNS H32A30 (Panel JHD315GH-E52), FUSION FLTV-32L42B (Panel KM315E3-CS-02), TELEFUNKEN TF-LED32S6 (Panel CX315DLEDM ST3151A05-5).
Main characteristics of the TELEFUNKEN TF-LED32S6 device:
Installed matrix (LED panel) CX315DLEDM ST3151A05-5.
To supply the LEDs for the backlight, a converter is used, associated with a power supply unit, controlled by the OB3350CP PWM controller.