Technical description and composition of the TELEFUNKEN TF-LED43S27T2 TV, panel type and applicable modules. The composition of the modules.TELEFUNKEN LED
Model: TF-LED43S27T2
Chassis / Version: 5800-A6M33G-0P10
Panel: LC430DUJ-SHA1 RDL430FY (LD0-10F) REV.00
LED driver (backlight): integrated into PSU
PWM LED driver: OZ9967GN
MOSFET LED driver: AOD4286 (D4286)
Power Supply (PSU): L3L02A 168P-L3L02A-W1 5800-L3L02A-W100
PWM Power: TEA1733
MainBoard: 5800-A6M33G-0P10 VER: 00.00 2015-08-20
IC MainBoard: 25Q64CS1G, TPA3110D2
Technical Specifications TF-LED43S27T2
TELEFUNKEN TF-LED43S27T2
General repair guidelines for TV LCD LED
Possible malfunctions
- TELEFUNKEN TF-LED43S27T2 TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
In such cases, the L3L02A power supply is usually faulty. It is necessary to measure its output voltages, and in case of their absence, check the operability of the power switches of the converters and rectifier diodes for the probability of a 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 keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke the excess of maximum current or voltage values. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) TEA1733, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a failure, the zener diode PN junction will either be cut off or broken into short-circuit.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 5800-A6M33G-0P10 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). In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its 25Q64CS1G, TPA3110D2 chips and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Attention TV owners! Self-repair attempts by TELEFUNKEN TF-LED43S27T2 are not recommended by the manufacturer and can lead to serious negative consequences!
FIRMWARE SPI FLASH -----------> TELEFUNKEN TF-LED43S27T2, Main: 5800-A6M33G-0P10 VER:00.00 2015-08-20, Panel: LC430DUJ-SHA1 RDL430FY (LD0-10F) REV.00
The appearance of the MainBoard 5800-A6M33G-0P10 is shown in the figure below:
5800-A6M33G-0P10
5800-A6M33G-0P10 can be used in TVs:ERISSON 49LES70T2 (Panel LC490DUJ-SHA2), TELEFUNKEN TF-LED43S27T2 (Panel LC430DUJ-SHA1 RDL430FY (LD0-10F) REV.00).
The appearance of the power supply
Main features of the TELEFUNKEN TF-LED43S27T2 device:
Installed matrix (LED-panel) LC430DUJ-SHA1 RDL430FY (LD0-10F) REV.00.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OZ9967GN PWM controller. As power elements of the LED driver, keys of the type AOD4286 (D4286) are used.
The formation of the necessary supply voltages for all nodes of the TELEFUNKEN TF-LED43S27T2 TV is carried out by the L3L02A power module, or its analogs using TEA1733 chips.
MainBoard - the main board (motherboard) is a 5800-A6M33G-0P10 module, using 25Q64CS1G, TPA3110D2 and others.