Tuesday 7 January 2020

REPAIR / SERVICING TV SAMSUNG UE37C6000

Technical description and composition of the SAMSUNG UE37C6000 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE37C6000 UE37C6000RW
Chassis / Version: N96A / AA02
Panel: T370FBE2-DA // T370FBE1-DB (BN07-00851A)
LED backlight: 2010SVS37_50 120Hz
T-CON: T315HW04 V3
LED driver (backlight): integrated into PSU
PWM LED driver: SELC2010M (MAP3201)
Power Supply (PSU): BN44-00355B PD37AF1E_ZDY
PWM Power: ICE3BR1765J, UCC25600S
MOSFET Power: FSQ0565RS
MainBoard: BN41-01444B BN94-03611Y
IC MainBoard: SDP92, WT61P802, 24C02, 24C256, KFG8GH6U4M
Tuner: BN40-00187A
Technical Specifications UE37C6000
SAMSUNG UE37C6000
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE37C6000 TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or flash, the TV does not respond to the remote control and control buttons.
Failure in such cases should begin to be sought in the power supply circuits BN44-00355. Then we recommend that you measure its output voltages and, if they are absent, you should check the health of the power switches (FSQ0565RS) and the rectifier diodes of the converters for possible short-circuit.
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And during short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
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 ICE3BR1765J, UCC25600S chips are usually checked by replacing with new ones, 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.
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. By opening the panel, each LED can be checked separately. Typically, 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 enter the operating mode, does not respond to the remote control. The indicator on the front panel lights up constantly or blinks.
Repair or diagnostics of the BN41-01444B 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). If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - SDP92, WT61P802, 24C02, 24C256, KFG8GH6U4M. Defective components should be replaced.
Before replacing the tuner BN40-00187A, 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 to users! Self-repair of a SAMSUNG UE37C6000 TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!

Service manual ---------------> SAMSUNG UE37C6000RW Chassis N96A (Model: UE**C600*R*, UE**C650*U*, UE**C6700US).

FIRMWARE FOR  Weltrend WT61P802 ------------>  SAMSUNG LE32C630 Weltrend WT61P802


 The appearance of the MainBoard BN41-01444B is shown in the figure below:
BN41-01444B
BN41-01444B can be used in TVs:
SAMSUNG UE32C6000RW UE32C6000 (Panel LTF320HF02); SAMSUNG UE32C6700 UE32C6700US (Panel LTF320HF02 (BN07-00858A))
Main features of the SAMSUNG UE37C6000 device:
The matrix (LED panel) T370FBE2-DA or T370FBE1-DB (BN07-00851A) is installed.
The matrix control uses the Timing Controller (T-CON) T315HW04.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by a SELC2010M PWM controller (MAP3201).
The necessary supply voltages for all nodes of the SAMSUNG UE37C6000 TV are generated by the BN44-00355B power module or its analogs using ICE3BR1765J, UCC25600S microcircuits and power switches of the type FSQ0565RS.
MainBoard - the main board (motherboard) is a module BN41-01444B, using microchips SDP92, WT61P802, 24C02, 24C256, KFG8GH6U4M and others.
The tuner BN40-00187A provides the reception of television programs and tuning to channels.