Technical description and composition of the SAMSUNG UE32J5005AK TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32J5005AK UE32J5005
Chassis / Version: LB04
Panel: JJ032BGE-R1
LED backlight: V5DN-320SM1-R2
T-CON: HV320FHB-N10
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): A5919_FSM Adapter 19V 3.17A
MainBoard: BN41-02358C BN94-08230A
IC MainBoard: SPI: W25Q40CLSIP, EEPROM: S24C256C4KGI, NAND: F59L1G81A-25TI
Tuner: BN40-00316A
Technical Specifications UE32J5005AK
SAMSUNG UE32J5005AK
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE32J5005AK 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.
Often in such cases, the A5919_FSM power module is faulty.
The external power supply unit A5919_FSM Adapter is not always subject to repair, especially since the owner can purchase it independently. But, in some cases, it makes sense to open it and eliminate the simple typical defects inherent in converters in pulsed sources. 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 and rectifier diodes of the converters for the presence of a possible 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 power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible key parameters. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, there is sound, it responds to the remote. Or the image may appear for a second when turned on and immediately disappears.
The most likely in these cases is a malfunction of the LED 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 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 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 BN41-02358C 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 board (SSB), it may be necessary to replace the chips - SPI: W25Q40CLSIP, EEPROM: S24C256C4KGI, NAND: F59L1G81A-25TI with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
If the TV works normally from external devices, but does not tune into television channels, the tuner BN40-00316A may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention to users! Self-repair of a SAMSUNG UE32J5005AK TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH ----------> SAMSUNG UE32J5005AK, Main: BN41-02358B.
The appearance of the MainBoard BN41-02358C is shown in the figure below:
BN41-02358C
The appearance of the power supply
Main features of the SAMSUNG UE32J5005AK device:
Installed matrix (LED-panel) JJ032BGE-R1.
The matrix control uses the Timing Controller (T-CON) HV320FHB-N10.
To power the backlight LEDs, a converter is used, combined with the main board BN41-02358C.
An external source of the A5919_FSM Adapter 19V 3.17A type is used to power all internal nodes of the SAMSUNG UE32J5005AK TV.
MainBoard - the main board (motherboard) is a BN41-02358C module, using SPI microcircuits: W25Q40CLSIP, EEPROM: S24C256C4KGI, NAND: F59L1G81A-25TI and others.
The tuner BN40-00316A provides the reception of television programs and tuning to channels.
