SAMSUNG UE32C6500 TV description and composition, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32C6500 UE32C6500UW
Chassis / Version: N96A
Panel: LTF320HF02
LED backlight: EDGE LED LJ64-02408A
T-CON: S120APM4C4LV0.4
LED driver (backlight): integrated into PSU
PWM LED driver: SELC2010
Power Supply (PSU): BN44-00355A PD37AF1E_ZSM
PWM Power: ICE3BR1765J (Standby), UCC25600
MOSFET Power: FQPF9N50CF
MainBoard: BN41-01444A BN94-03405B
IC MainBoard: SDP92, WT61P802, 24C256, KFG8GH6U4M
Tuner: BN40-00172A
Technical Specifications UE32C6500
SAMSUNG UE32C6500
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE32C6500 TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
In some of these cases, the main switching power supply, the BN44-00355A module, is faulty. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches (FQPF9N50CF) and rectifier diodes for a possible partial or complete breakdown.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) ICE3BR1765J (Standby), UCC25600, in the absence of external damage and a short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In some of these cases, a malfunction is caused by a lack of display backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED strips to open all the transitions of the LEDs, several tens of volts or more are necessary, 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, sometimes you can 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 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 BN41-01444A 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). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing SDP92, WT61P802, 24C256, KFG8GH6U4M elements requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltage at the terminals of the tuner BN40-00172A. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
It should be remembered! Attempts to self-repair a SAMSUNG UE32C6500 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
Service manual ---------------->SAMSUNG Chassis N96A Model: UE**C600*R*, UE**C650*U*, UE**C6700US.
FIRMWARE FOR WT61P802 ---------------> SAMSUNG LE32C630 Weltrend WT61P802
The appearance of the MainBoard BN41-01444A is shown in the figure below:BN41-01444A
The appearance of the power supply
Main features of the SAMSUNG UE32C6500 device:
Installed matrix (LED-panel) LTF320HF02.
The matrix control uses the Timing Controller (T-CON) S120APM4C4LV0.4.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the SELC2010 PWM controller.
The necessary supply voltages for all nodes of the SAMSUNG UE32C6500 TV are generated by the BN44-00355A power module or its analogs using ICE3BR1765J (Standby), UCC25600 microcircuits and power switches of the FQPF9N50CF type.
MainBoard - the main board (motherboard) is a module BN41-01444A, using microchips SDP92, WT61P802, 24C256, KFG8GH6U4M and others.
The tuner BN40-00172A provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTF320HF02
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: S-PVA, Normally Black, Transmissive
Display Colors: 16.7M (8-bit)Frequency: 120Hz
Lamp Type: WLED