Technical description and composition of the SAMSUNG UE48JU6000 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE48JU6000 UE48JU6000K
Panel: CY-GJ048HGLV4H
T-CON: BN41-02354A
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN96-35336A L55S5_FDYV
MOSFET Power: MMF60R580P, 60R360P
MainBoard: BN41-02443A BN94-09749G
IC MainBoard: CPU: SDP1406, K4B4G1646D-BCMA, NTP7415
Tuner: BN40-00318B
Technical Specifications UE48JU6000U
SAMSUNG UE48JU6000
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE48JU6000 TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
In such cases, the malfunction should be sought first in the BN96-35336A power supply module. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches (MMF60R580P, 60R360P) and the rectifier diodes of the converters for a short circuit probability.
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
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 responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. The reason can be both in the power 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 check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the BN41-02443A 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 - CPU board: SDP1406, K4B4G1646D-BCMA, NTP7415. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Before replacing the tuner BN40-00318B, if there is no tuning to the channels, you must first check the software and supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Once again, remind users! Attempts to self-repair a SAMSUNG UE48JU6000 TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
The appearance of the MainBoard BN41-02443A is shown in the figure below:BN41-02443A
The appearance of the power supply
Main features of the SAMSUNG UE48JU6000 device:
Installed matrix (LED-panel) CY-GJ048HGLV4H.
The matrix control uses the Timing Controller (T-CON) BN41-02354A.
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 UE48JU6000 TV is carried out by the BN96-35336A power module, or its analogs using power switches of the MMF60R580P, 60R360P type.
MainBoard - the main board (motherboard) is a BN41-02443A module, using CPU chips: SDP1406, K4B4G1646D-BCMA, NTP7415 and others.
The tuner BN40-00318B provides the reception of television programs and tuning to channels.
