Technical description and composition of the SAMSUNG UE32FH4003W TV,
panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32FH4003W
Chassis / Version: TS01
Panel: CY DF320AGLV1V
LED backlight: D3GE-320SM0-R2 [07/13/10]
T-CON: 13Y 32AN01S4LV0.1 RT6906B, LAXC021T2B-Q1
LED driver (backlight): integrated into PSU
PWM LED driver: 3013X
MOSFET LED driver: KF4N20LD
Power Supply (PSU): BN44-00664A L32G0-DDY
PWM Power: 3S111
MOSFET Power: KF6N60
MainBoard: BN41-01897A
IC MainBoard: NAND: K9F1G08U0D, RAM: K4B1G1646D-HCH9, SPI Flash: 25Q40, Eeprom: 24C256, Sound: NTP7412S
Tuner: DTTX-51B BN40-00231B
Control: Remote: AA59-00602A; IR: UE6030 BN41-01899B BN96-23845B
Appearance
SAMSUNG UE32FH4003W
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs SAMSUNG 32FH4003W, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. Often by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
In cases where the SAMSUNG 32FH4003W TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink and there are no sounds and no signs of operability at all, the power supply module L32G0-DDY BN44- is most likely to be faulty 00664A or there is no processor power on the motherboard (a typical defect in some SAMSUNG TVs). In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is cut off, then it is necessary to check the diodes of the rectifier bridge and the key transistor of the converter for a breakdown of the PN junctions, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is checked by replacing it with a known good one.
Sometimes the SAMSUNG 32FH4003W TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the backlight LEDs of the CY DF320AGLV1V panel, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the circuit of the LED lines without disassembling the panels with 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.
Repair or diagnostics of the BN41-01897A motherboard should begin by checking the stabilizers or power converters of its microcircuits. If necessary, update the software (software).
If it is not possible to replace the MB board (SSB), you need to check the health of its elements - NAND: K9F1G08U0D, RAM: K4B1G1646D-HCH9 ,. Defective components should be replaced.
If you suspect a malfunction of the DTTX-51B BN40-00231B tuner, first of all, you need to make sure that the voltage of the varicaps (30-33V) is on the corresponding output of the tuner, as well as other voltage supplying it.
For owners of the 32FH4003W TV, we recommend that you contact qualified personnel with experience to repair! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
The appearance of the MainBoard BN41-01897A is shown in the figure below:
BN41-01897A
BN41-01897A can be used in TVs:
SAMSUNG UE32FH4003W (Panel CY DF320AGLV1V), SAMSUNG UE39EH5003 UE39EH5003W (Panel DE390BGA-C1), SAMSUNG UE50ES6907U UE50ES6907 (Panel SE500CSA-B1), SAMSUNG UE32E3H3400.
Main features of the SAMSUNG UE32FH4003W device:
The matrix (LED panel) CY DF320AGLV1V is installed.
The matrix control uses the Timing Controller (T-CON) 13Y.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a 3013X PWM controller. As the power elements of the LED driver, keys of the KF4N20LD type are used.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE32FH4003W TV is carried out by the BN44-00664A power module or its analogs using 3S111 microcircuits and KF6N60 type power switches.
MainBoard - the main board (motherboard) is a BN41-01897A module, using NAND chips: K9F1G08U0D, RAM: K4B1G1646D-HCH9, SPI Flash: 25Q40, Eeprom: 24C256, Sound: NTP7412S and others.
Tuner DTTX-51B BN40-00231B provides the reception of television programs and tuning to channels.
Information from an alternative source:
SAMSUNG UE32FH4003W
Panel Type (Matrix): CY-DF320AGLV1V
Motherboard: BN94-0762M BN41-01897A, Tuner: DTTX-51B / C3 BN40-00231B
T-con: 13Y 32AN01S4LV0.2, RT6906B, IR: UE6030 BN41-01899B
PSU: L32G0-DDY BN44-00664A
Remote control: AA59-00602A
