Technical description and composition of the SAMSUNG UE32K5500 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32K5500 UE32K5500AW
Panel: CY-KK032BGAV1V
T-CON: T550HVN08.3, T320HVN05.4 XL
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN41-02520A REV 1.2BN94 10883A L32EF_KVD
MainBoard: BN41-02534B Hawk_M_FHD_PRO2
IC MainBoard: CPU: SDP1415. Hawk-MF, SPI Flash 25Q41BSIG, Sound: TAS5747
Tuner: BN40-00316A
Technical Specifications UE32K5500AU
SAMSUNG UE32K5500
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE32K5500 TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
Failure in such cases should begin to be sought in the BN41-02520A power supply circuits. It is necessary to measure its output voltages and, if they are absent, to check the short circuit probability in the converters power switches and rectifier diodes.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key are most often cut off.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM IC_Power chips are usually checked by replacing with new, or obviously working.
- There is no image, there is sound, there is a reaction to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
As a rule, in such cases there is no display backlight. The reason can 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.
To check the LED strips, to open all the transitions of the LEDs, several tens of volts or more are needed, it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED transitions in forward bias, you can sometimes detect the presence of a PN junction of the protective zener diode by connecting the probes in the opposite direction. If the zener diode is broken or broken in short-circuit, then the LED is faulty and needs to be replaced.
- The indicator blinks or glows constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-02534B motherboard should begin by checking the stabilizers and power converters needed to power the chips 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 - Sound: TAS5747 with new or obviously good ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
If a tuner BN40-00316A is suspected of malfunction, first of all, it is necessary to verify the correctness of the software, as well as the presence of the necessary supply voltage levels and data exchange pulses with the processor via the I2C bus at the corresponding tuner pins.
Attention to users! Self-repair of a SAMSUNG UE32K5500 TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
The appearance of the MainBoard BN41-02534B is shown in the figure below:
BN41-02534B
BN41-02534B can be used in TVs:
SAMSUNG UE40K5500 (Panel CY-KK040BGLV1V), SAMSUNG UE32K5500 UE32K5500AW (Panel CY-KK032BGAV1V), SAMSUNG UE49K5500 UE49K5500BU (Panel CY-KK049BGLV1V).
The appearance of the power supply
Main features of the SAMSUNG UE32K5500 device:
Installed matrix (LED panel) CY-KK032BGAV1V.
The matrix control uses the Timing Controller (T-CON) T550HVN08.3.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE32K5500 TV is carried out by the BN41-02520A power module, or its analogs.
MainBoard - the main board (motherboard) is a BN41-02534B module using CPU chips: SDP1415. Hawk-MF, SPI Flash 25Q41BSIG, Sound: TAS5747 and others.
The tuner BN40-00316A provides the reception of television programs and tuning to channels.