Technical description and composition of the SAMSUNG UE32H4000 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32H4000 UE32H4000AK
Chassis / Version: Ver: RS01
Panel: HH032AGH-R1
LED backlight: SAMSUNG 2014SVS32HD_3228_07_Rev1.3_131212
T-CON: ST3151A04-5-XC-2 ST3151A04-7
LED driver (backlight): with integrated PSU
PWM LED driver: 7014X
Power Supply (PSU): BN44-00696A - L32S0_ESM - PSLF620S06A
PWM Power: S3330 (FAN6755)
MainBoard: BN41-02098A BN94-07207K
IC MainBoard: F59L1G81A, K4B2G1646Q BCK0
Tuner: BN40-00288A DNTQ403IH286A
Control: IR: A30857C (BN41-01976B)
Technical Specifications UE32H4000
SAMSUNG UE32H4000
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE32H4000 TV does not turn on and does not show any signs of turning on. There is no reaction to the control buttons and the remote control.
Most likely in this case, the power module BN44-00696A is faulty. It is necessary to measure the secondary output voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the elements of the primary circuit, the mains fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. The PWM IC_Power may 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 commands from the remote control. Or the image appears immediately after turning on and disappears.
As a rule, in such cases there is no display 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 check the LED strips, to open all the transitions of the LEDs, several tens of volts or more are needed, it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED transitions in forward bias, you can sometimes detect the presence of a PN junction of the protective zener diode by connecting the probes in the opposite direction. If the zener diode is broken or broken in short-circuit, then the LED is faulty and needs to be replaced.
- 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 BN41-02098A 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 cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its chips F59L1G81A, K4B2G1646Q BCK0 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Malfunction of the tuner BN40-00288A DNTQ403IH286A is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair to professionals with sufficient experience in the repair of electronic equipment.
The appearance of the MainBoard BN41-02098A is shown in the figure below:BN41-02098A
BN41-02098A can be used in TVs:
SAMSUNG UE32H4270AU UE32H4270 (Panel HH032AGH-R1), SAMSUNG UE32H4000 AK (Panel HH032AGH-R1).
The appearance of the power supply
Main features of the SAMSUNG UE32H4000 device:
Installed matrix (LED panel) HH032AGH-R1.
The matrix control uses the Timing Controller (T-CON) ST3151A04-5-XC-2.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a 7014X PWM controller.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE32H4000 TV is carried out by the BN44-00696A power module, or its analogs using S3330 chips (FAN6755).
MainBoard - the main board (motherboard) is a BN41-02098A module, using F59L1G81A, K4B2G1646Q BCK0 chips and others.
The tuner BN40-00288A DNTQ403IH286A provides the reception of television programs and tuning to channels.
