Technical description and composition of the SAMSUNG UE32D4010NW TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32D4010NW
Panel: LD320AGC-C3
LED backlight: 2011SVS32 4K-V1-1CH-PV-LEFT58-1116
T-CON: V315B5-XC10 V315-P10 Rev.c1
LED driver (backlight): integrated into PSU
PWM LED driver: SEM5025
Power Supply (PSU): BN44-00421A - PD32A0_BSM - PSLF800A03A PCB
PWM Power: FAN7602C
MainBoard: BN41-01661B BN94-05222Q
IC MainBoard: K4B1G1646G-BCH9, WT61P805, NTP-7411S
Tuner: BN40-00221A
Control: IR: BN96-17614J (BN41-01695A)
Technical Specifications UE32D4010
SAMSUNG UE32D4010NW
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE32D4010NW does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
Most likely in this case, the main switching power supply (IIP) BN44-00421A is faulty. It is necessary to measure its output voltages and, if they are completely absent, to check for short-circuit probabilities in the converters, power switches and rectifier diodes.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be elements supplying the PWM controller, damping circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power key can be a PWM chip FAN7602C, which is checked by replacing a known-good one.
- 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 for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source. By opening the panel, each LED can be checked separately. Usually, Chinese multimeters light up a single 3-volt LED, if you connect probes in the forward direction to it. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as a health indicator. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, the indicator signals standby or working mode, or blinks.
Repair or diagnostics of the BN41-01661A 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). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - K4B1G1646G-BCH9, WT61P805, NTP-7411S with new or obviously good ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Before changing the tuner BN40-00221A, if there is no possibility of tuning to television channels, you should make sure that there are supply voltages that must be measured at the corresponding terminals of the tuner and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
It should be remembered! Attempts to self-repair a SAMSUNG UE32D4010NW TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
BN41-01661A
BN41-01661A can be used in TVs:
SAMSUNG UE32D4000NW UE32D4000 (Panel LD320AGC-C1 (V315B5-P10)), SAMSUNG UE32D4010NW (Panel UE32D4010NW).
The appearance of the power supply
Main features of the SAMSUNG UE32D4010NW device:
Installed matrix (LED-panel) LD320AGC-C3.
The matrix control uses the Timing Controller (T-CON) V315B5-XC10.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SEM5025 PWM controller.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE32D4010NW TV is carried out by the BN44-00421A power module, or its analogs using FAN7602C microcircuits.
MainBoard - the main board (motherboard) is a BN41-01661B module, using K4B1G1646G-BCH9, WT61P805, NTP-7411S and others.
The tuner BN40-00221A provides the reception of television programs and tuning to channels.
