Technical description and composition of the SAMSUNG V32F390SIX TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: V32F390SIX
Chassis / Version: Curved
Panel: CY-PM315BNLV1V
LED backlight: BN61-13473A, 7020PCT 48LED
T-CON: BN41-02292A BN95-04172A
LED driver (backlight): integrated into MainBoard
PWM LED driver: S5014R (SLC5014R)
MOSFET LED driver: AOD2922
Power Supply (PSU): Adapter 19V
MainBoard: BN41-02620A BN94-12200X
Tuner: BN40-00330B
Control: IR: BN41-02535A BN96-40105A, WIFI: WIDT30Q BN59-01174D
Technical Specifications V32F390SIX
SAMSUNG V32F390SIX
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG V32F390SIX 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.
With such manifestations, the Adapter power module usually fails.
The owner of the TV can purchase an external power supply unit such as Adapter and repairing it is not always advisable. In any case, the simplest typical defects characteristic of most IIP schemes can be easily detected and eliminated after opening. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches and rectifier diodes of the converters for the probability of a short circuit.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
In such cases, the most likely malfunction of the LED backlight elements. 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 BN41-02620A 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).
If a tuner BN40-00330B 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 voltage levels and impulses of data exchange with the processor via the I2C bus at the corresponding terminals of the tuner.
TV users and owners need to remember that attempts to self-repair a SAMSUNG V32F390SIX TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
The appearance of the MainBoard BN41-02620A is shown in the figure below:BN41-02620A
Main features of the SAMSUNG V32F390SIX device:
Installed matrix (LED-panel) CY-PM315BNLV1V.
The matrix control uses the Timing Controller (T-CON) BN41-02292A.
To power the backlight LEDs, a converter is used, combined with the main board BN41-02620A, controlled by the PWM controller S5014R (SLC5014R). As power elements of the LED driver, keys of the AOD2922 type are used.
To power all internal components of the SAMSUNG V32F390SIX TV, an external adapter 19V type source is used.
MainBoard - the main board (motherboard) is a BN41-02620A module.
The tuner BN40-00330B provides the reception of television programs and tuning to channels.
