Technical description and composition of the SAMSUNG UE32B6000VW TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32B6000VW UE32B6000
Chassis / Version: N74A
Panel: T320FBE1-DB
LED backlight: SEMCO SVS32 4TH
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00293A PD3212F1 PSLF141B01A
PWM Power: MC33067P, ICE3BR0665J
MainBoard: BN41-01190C BN94-02662Z
IC MainBoard: RTL8100CSL
Tuner: BN40-00145B
Technical Specifications UE32B6000VW
SAMSUNG UE32B6000VW
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE32B6000VW TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
Typically, with such manifestations, the defect is caused by faulty elements in the main power module BN44-00293A. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches and rectifier diodes of the converters for the probability of 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, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits MC33067P, ICE3BR0665J are usually checked by replacing with new, or obviously working.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
Failure in most such cases is detected in the nodes and backlight elements 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 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 BN41-01190C 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). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the RTL8100CSL elements. BGA chip malfunctions are usually easy to detect by warming up.
Before replacing the tuner BN40-00145B, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention TV owners! Attempts to self-repair SAMSUNG UE32B6000VW are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual and schematic diagram --------------> SAMSUNG UE32B6000VW Chassis N74A
The appearance of the MainBoard BN41-01190C is shown in the figure below:BN41-01190C
The appearance of the power supply
Main features of the SAMSUNG UE32B6000VW device:
The matrix (LED panel) T320FBE1-DB is installed.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE32B6000VW TV is carried out by the BN44-00293A power module, or its analogs using MC33067P, ICE3BR0665J microcircuits.
MainBoard - the main board (motherboard) is a BN41-01190C module, using RTL8100CSL chips and others.
The tuner BN40-00145B provides the reception of television programs and tuning to channels.