Technical description and composition of the SAMSUNG UE37C5000 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE37C5000 UE37C5000QW
Chassis / Version: AA02 N92A
Panel: T370FAE1-DA
T-CON: T370HW04 V2 CTRL BD 37T06-C00
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00351B PD37AF0E_ZDY REV.1.4 HU10251-10013
PWM Power: STR-W6052S
MOSFET Power: FDPF5N50T
MainBoard: BN41-01549B BN94-03970X
IC MainBoard: WT61P802, AOZ1031A DC-DC (8) SJ-1102, CTM1701M, NTP-7300S, K4T1G164QF-BCFd
Tuner: BN40-00201A TDAG4-K04A
Technical Specifications UE37C5000
SAMSUNG UE37C5000
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE37C5000 TV does not turn on, does not respond to the remote control and buttons on the control panel, does not light up or blink indicators.
With such manifestations, a malfunction is most likely to be detected in the BN44-00351B power supply module. Then we recommend that you measure its output voltages and, if they are absent, you should check the health of the power switches (FDPF5N50T) and the rectifier diodes of the converters for possible short circuit.
In case of breakdowns of semiconductors in secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible key parameters. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers STR-W6052S, in the absence of visible damage or obvious short-circuit between the terminals, are checked by replacing with new, or obviously working.
- 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.
A malfunction is usually most likely in these cases at the backlight nodes of the display matrix. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V for them. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. 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 blinks or glows constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-01549B 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). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements WT61P802, AOZ1031A DC-DC (8) SJ-1102, CTM1701M, NTP-7300S, K4T1G164QF-BCFd. BGA chip malfunctions are usually easy to detect by warming up.
Before replacing the tuner BN40-00201A TDAG4-K04A, if there is no tuning for 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! For users and owners of UE37C5000 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
Service manual--------------> SAMSUNG UE37C5000 Chassis: N92A
The appearance of the MainBoard BN41-01549B is shown in the figure below:BN41-01549B
The appearance of the power supply
Main features of the SAMSUNG UE37C5000 device:
Installed matrix (LED panel) T370FAE1-DA.
The matrix control uses the Timing Controller (T-CON) T370HW04.
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 UE37C5000 TV is carried out by the BN44-00351B power module or its analogs using STR-W6052S microcircuits and power switches of the FDPF5N50T type.
MainBoard - the main board (motherboard) is a BN41-01549B module, using WT61P802, AOZ1031A DC-DC (8) SJ-1102, CTM1701M, NTP-7300S, K4T1G164QF-BCFd and others.
The tuner BN40-00201A TDAG4-K04A provides the reception of television programs and tuning to channels.
