Technical description and composition of the SAMSUNG UE32D5000PW TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32D5000PW
Chassis / Version: U57A / Ver. HQ02
Panel: LTJ320HN01-L // LTJ320HN01-V
LED backlight: 2011SVS32_456K Edge (2 * 44 Led) Left + Right
T-CON: BN41-01678A S100FAPC2LV0.3: LPFC041T0A-Q1 ISL24835 SM4109
LED driver (backlight): integrated into PSU; 148V, 290 mA
PWM LED driver: SEM5025
MOSFET LED driver: MDD3752, MDD5N40
Power Supply (PSU): BN44-00460A PSLF800A03C
PWM Power: FAN7602C
MOSFET Power: MDF13N65B, K8A50D
MainBoard: BN41-01747A
IC MainBoard: WT61P805, Sound: NTP7411S, DDR: K4B1G1646G-BCH9, SPI Flash: W25Q40BVSIP, EEPROM: 24C256
Tuner: BN40-00196A DTOS40FVH082A
Control: IR BN96-16729K (BN41-01600B)
Technical Specifications UE32D5000
SAMSUNG UE32D5000PW
General repair guidelines for TV LCD LED
Repair of the SAMSUNG UE32D5000PW TV should begin with a careful external examination of all its components and modules. Based on visible external changes in the state of the components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before making the necessary measurements. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element outputs, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, it does not make any sounds or any signs of operability when it is turned on, there is a certain chance that the PSLF800A03C BN44-00460A LED power supply module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain SAMSUNG models. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), the mains fuse must first be checked. When it is broken, the power elements of transistors and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a key breakdown can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the FAN7602C PWM controller microcircuit are subject to verification, which it is desirable to verify by replacement.
If there is no image when you turn on the SAMSUNG UE32D5000PW, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the LTJ320HN01-L panel, or in the power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
The motherboard BN41-01747A must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
Board repair and chip replacement WT61P805, Sound: NTP7411S, DDR: K4B1G1646G-BCH9, SPI Flash: W25Q40BVSIP, EEPROM: 24C256 are made with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
If the TV works normally from external devices, but does not tune into television channels, the tuner DTOS40FVH082A BN40-00196A may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals.
Attention! For users and owners of UE32D5000PW TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
SCHEMATIC MANUAL ----------> Samsung UE32D5000PW Chassis U57A .
Chassis : U66A Model : UE32D55**R*, UE37D55**R*, UE40D55**R*, UE46D55**R*, UE32D57**RS, UE37D57**RS, UE40D57**RS, UE46D57**RS
Chassis : U57A Model : UE32D50**PW, UE37D50**PW, UE40D50**PW, UE46D50**PW, UE32D40**NW
Chassis : U57B Model : UE19D40**NW, UE22D50**NW, UE27D50**NW
PSU SCHEMATIC -----------------> BN44-00460A
BN41-01747A
BN41-01747A can be used in TVs:
SAMSUNG UE40D5000PW (Panel LD400BGC-C2 DD01), SAMSUNG UE32D5000PW (Panel LTJ320HN01-L).
The appearance of the power supply
Main features of the SAMSUNG UE32D5000PW device:
Installed matrix (LED panel) LTJ320HN01-L or LTJ320HN01-V.
The matrix control uses the Timing Controller (T-CON) BN41-01678A.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SEM5025 PWM controller. As power elements of the LED driver, keys of the type MDD3752, MDD5N40 are used.
The necessary supply voltages for all nodes of the SAMSUNG UE32D5000PW TV are generated by the BN44-00460A power module or its analogs using FAN7602C microcircuits and power switches of the MDF13N65B, K8A50D type.
MainBoard - the main board (motherboard) is a BN41-01747A module, using WT61P805 chips, Sound: NTP7411S, DDR: K4B1G1646G-BCH9, SPI Flash: W25Q40BVSIP, EEPROM: 24C256 and others.
The tuner BN40-00196A DTOS40FVH082A provides the reception of television programs and tuning to channels.