Technical description and composition of the SAMSUNG UE32D5800VW TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32D5800VW UE32D5800
Chassis / Version: Ver: H301
Panel: LTJ320HN02-L
LED backlight: BN64-01634A # 3, 2011SVS32-FHD-5K6K6.5K-LEFT / RIGHT JVG4-320SMB-R2 (10.12.08)
T-CON: LSJ320HN01-S - S100FAPC2LV0 - BN41-01678a
LED driver (backlight): integrated into PSU; 148V, 290 mA
PWM LED driver: SEM5025
MOSFET LED driver: AOTF9N50
Power Supply (PSU): BN44-00460A
PWM Power: FAN7602CMX
MOSFET Power: AOTF12N65L
MainBoard: BN41-01661B - BN94-04979C
IC MainBoard: K4B1G1646G-BCH9, WT61P805, NTP-7411S
Tuner: BN40-00196A
Control: IR: BN96-18099L BN41-01638B
Technical Specifications UE32D5800
SAMSUNG UE32D5800VW
General repair guidelines for TV LCD LED
Possible manifestations of defects
- SAMSUNG UE32D5800VW TV does not turn on, does not respond to the remote control and control panel buttons, indicators do not light up and do not blink.
In such cases, the fault should be sought first in the BN44-00460A power supply module. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches (AOTF12N65L) and rectifier diodes in the converters for a short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the mains fuse and, less often, the current sensor at the source of the key are most often cut off.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. The PWM chip FAN7602CMX can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In most cases, a malfunction is caused by a lack of display backlight. 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 turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the BN41-01661B 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). When repairing an MB board, you need to check its components K4B1G1646G-BCH9, WT61P805, NTP-7411S. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If the TV works normally from external devices, but does not tune into television channels, the tuner BN40-00196A may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. You also need 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.
We recommend the owners of the UE32D5800VW TV for repair only to qualified specialists with the necessary work experience! Attempts to repair it yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!
PSU SCHEMATIC BN44-00460A
The appearance of the MainBoard BN41-01661B is shown in the figure below:BN41-01661B
BN41-01661B can be used in TVs:
SAMSUNG UE32D4000NW UE32D4000 (Panel LD320AGC-C1 (V315B5-P10)), SAMSUNG UE40D5000PN (Panel LD400BGC-C2), SAMSUNG UE40D5000PW (Panel LD400BGC-C2 DD01), SAMSUNG UE32D5800VW UE32D5800 (Panel LTJ320HN02-L), SAMSUNG UE40D5800 UE40D5800VW (Panel LTJ400HM04-L ), SAMSUNG UE37D5000PW UE37D5000 (Panel LD370BGB-C1), SAMSUNG UE46D5000PW UE46D5000 (Panel LTG460HN01-V).
The appearance of the power supply
Main features of the SAMSUNG UE32D5800VW device:
Installed matrix (LED-panel) LTJ320HN02-L.
The matrix control uses the Timing Controller (T-CON) LSJ320HN01-S.
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 AOTF9N50 type are used.
The necessary supply voltages for all nodes of the SAMSUNG UE32D5800VW TV are generated by the BN44-00460A power module or its analogs using FAN7602CMX microchips and AOTF12N65L type power switches.
MainBoard - the main board (motherboard) is a BN41-01661B module, using K4B1G1646G-BCH9, WT61P805, NTP-7411S and others.
The tuner BN40-00196A provides the reception of television programs and tuning to channels.
