Technical description and composition of the SAMSUNG UE32C6530 TV, panel type and modules used. The composition of the modules.SAMSUNG LED
Model: UE32C6530
Chassis / Version: N92B
Panel: LTF320HF02
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
IC MainBoard: SDP92, WT61P802, 24C256, KFG8GH6U4M
Tuner: BN40-00187A
UE32C6530 Specifications
SAMSUNG UE32C6530
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- SAMSUNG UE32C6530 TV does not turn on at all. Control lamps do not light up or blink. The TV on the remote control and control panel buttons does not respond.
Often in such cases, the power module BN44-00355A is faulty. Its output voltages should be measured and, if they are absent, the serviceability of the power switches (FQPF9N50CF) and rectifier diodes in the converters should be checked for possible breakdown.
In case of breakdowns in the secondary circuits, the converter can operate in short-circuit mode, and in case of short-circuit in the elements of the primary circuit, the mains fuse usually breaks off.
The breakdown of power switches (MosFet) in switching sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency setting or damper, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM regulators (PWM) ICE3BR1765J (Standby), UCC25600, if they do not have visible damage to the case and an outright short circuit between the pins, are usually checked by replacing.
- There is no image, there is sound, it reacts to the remote control Or the image may appear for a second when turned on and disappear immediately.
Often in such cases, there is no backlighting of the LED panel. The reason may be in the breakage of the LEDs, in the stabilization of their power supply, or in the violation of the contact connections of the strings connectors,
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
If SAMSUNG UE32C6530 has no image, but there is sound, often the LTF320HF02 display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the LTF320HF02 LCD panel, a process that requires experience and qualifications from the technician. We do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see the light through the holes in the panel case.
In this case, the panel may also be faulty - damage to the strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But the main board MainBoard BN41-01444A often turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within the normal range, it is necessary to trace the passage of LVDS signals from MainBoard BN41-01444A with an oscilloscope, as well as synchronization signals to the loops with drivers.
Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.
Repair or diagnostics of the BN41-01444A motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complex repair of MB (SSB) is possible only in a service center with the necessary equipment. Checking or replacing SDP92, WT61P802, 24C256, KFG8GH6U4M elements requires the necessary training and professional skills in repairing modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by the warm-up method.
The malfunction of the BN40-00187A tuner is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be monitored with an oscilloscope.
I remind users again! Attempts to self-repair the SAMSUNG UE32C6530 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
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Additional MainBoard Repair
The appearance of MainBoard BN41-01444A is shown in the figure below:
BN41-01444A
External view of the power supply
Main features of SAMSUNG UE32C6530 device:
Installed matrix (LED panel) LTF320HF02.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by the SELC2010 PWM controller.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE32C6530 TV is carried out by the BN44-00355A power module, or its analogs using ICE3BR1765J (Standby), UCC25600 chips and power switches of the FQPF9N50CF type.
MainBoard - the main board (motherboard) is a BN41-01444A module, using SDP92, WT61P802, 24C256, KFG8GH6U4M and others.
Tuner BN40-00187A provides 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.
SAMSUNG UE32C6530 TV with LCD display LTF320HF02, diagonal size 32 "(81 cm) 16: 9 format. This model uses a panel with edge LED backlighting - Edge LED.
The LTF320HF02 sensor and MainBoard BN41-01444A software allow viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD).
The UE32C6530 TV is equipped with SMART software, built-in applications and the ability to work on the Internet. The connection to the network can be carried out via Wi-Fi wireless connection. The input analog video signal is decoded in PAL, SECAM, NTSC systems. Graphic processing of a digital signal is performed in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker sound system power 20 W (2x10 W) is provided by two speakers. The NICAM stereo audio processing system and the Sound Surround function are used.
Communication with other devices via an external interface is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, RGB, VGA, HDMI x4, USB x2, Ethernet (RJ-45), Wi-Fi. A headphone jack is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is provided. This interface supports standard resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080.
The digital tuner can receive TV channels in DVB-T MPEG4, DVB-C standards.
The power supply is BN44-00355A.
Dimensions: with stand 774x543x242 mm, without stand 774x479x31 mm.
TV weight: with stand: 10.2 kg, without stand: 8.5 kg.
Attention! Panel LTF320HF02 LED TV SAMSUNG UE32C6530 is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.