Technical description and composition of the SAMSUNG UE55JU6530U TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE55JU6530U UE55JU6530
Chassis / Version: UH02
Panel: CY-GJ055HGLV2V
LED backlight: V5DU-550DCA-R1 & V5DU-550DCB-R1
T-CON: BN41-02297A LSF550FN05-K
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00807A L55S6_FHS REV1.2
PWM Power: SPC7011F, FA6A20
MOSFET Power: N-FET TO-220F
MainBoard: BN41-02344D BN94-10158V
IC MainBoard: CPU: SDP1406, Spi Flash: 25Q40CLSIP, SOUND: NTP7415, DDR: K4B2G1646Q-BCMA
Tuner: BN40-00318B
Technical Specifications UE55JU6530U
SAMSUNG UE55JU6530U
General repair guidelines for TV LCD LED
Possible manifestations of defects
- SAMSUNG UE55JU6530U TV does not turn on. There are no signs of operability. The indicators on the front panel do not light up and do not blink, the TV does not respond to the control buttons.
With such manifestations, the BN44-00807A power module usually fails. 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 (N-FET TO-220F) and rectifier diodes of converters for possible short circuit.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually 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) SPC7011F, FA6A20, if they do not have visible damage to the case and open fault between the terminals, are usually checked by replacement.
- There is no image, there is sound, all other functions of the TV work. When turned on, the image may sometimes appear for a second.
In some of these cases, the malfunction is caused by a lack of backlighting on the display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the BN41-02344D motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the health of its elements - CPU: SDP1406, Spi Flash: 25Q40CLSIP, SOUND: NTP7415, DDR: K4B2G1646Q-BCMA which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltage at the terminals of the tuner BN40-00318B. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
TV users and owners need to remember that attempts to self-repair a SAMSUNG UE55JU6530U TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
The appearance of the MainBoard BN41-02344D is shown in the figure below:BN41-02344D
The appearance of the power supply
Main features of the SAMSUNG UE55JU6530U device:
Installed matrix (LED-panel) CY-GJ055HGLV2V.
The matrix control uses the Timing Controller (T-CON) BN41-02297A.
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the SAMSUNG UE55JU6530U TV are generated by the BN44-00807A power module or its analogs using SPC7011F, FA6A20 microcircuits and N-FET TO-220F type power switches.
MainBoard - the main board (motherboard) is a BN41-02344D module, using CPU chips: SDP1406, Spi Flash: 25Q40CLSIP, SOUND: NTP7415, DDR: K4B2G1646Q-BCMA and others.
The tuner BN40-00318B provides the reception of television programs and tuning to channels.
