Technical description and composition of the SAMSUNG LE32B530 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG
Model: LE32B530 LE32B530P7W
Chassis / Version: N65A
Panel: LTF320HA09
T-CON: 320HAC2LV0.4, THF9301, ISL24007IRZ, EM638325TS-7G, 24C64WP
Inverter (backlight): integrated into PSU
PWM Inverter: BD9893F
MOSFET Inverter: 2SK3561
Power Supply (PSU): BN44-00261B H32F1_9DY
PWM Power: STR-W6252, A358F, FAN7530 (PFC)
MOSFET Power: FDPF5N50UT
MainBoard: BN41-01165A // BN41-01165B
IC MainBoard: CPU: SEMS12, DRAM: K4T511630G-HCE7, SPI Flash: 25L6405DMI-12G, NTP3200, MX25L6445D, WT61P8
Tuner: BN40-00137A DNOQ403SH151A (S)
Control: IR: BN96-10362A BN41-00990A
Technical Specifications LE32B530
SAMSUNG LE32B530
General repair guidelines for TV LCD
Possible manifestations of defects
- SAMSUNG LE32B530 does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
The malfunction in such cases should begin to be sought in the power supply circuits BN44-00261B. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, check the serviceability of the power switches (FDPF5N50UT) and rectifier diodes for possible breakdown (short circuit).
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the elements of the primary circuit, the mains fuse usually 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 parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers STR-W6252, A358F, FAN7530 (PFC), in the absence of visible damage or explicit short-circuit between the terminals, are checked by replacing with new, or obviously working.
- 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.
These manifestations can be triggered by a power supply module, or by inverter defects, as well as a distortion of the currents in the lamps due to their uneven wear. After checking all the electrolytic capacitors of the filters that are involved in powering the inverter, you should ring in its converter power keys for breakdown and the secondary windings of transformers for an open.
Sometimes, for diagnostic purposes, inverter protection must be disabled. In such cases, special care must be taken during work, and the protection circuits should be restored immediately after the repair is completed.
SAMSUNG LE32B530 has no image when there is a signal is often caused by a malfunction of the display backlight. Moreover, the problem can be both inside the LCD panel (matrix) LTF320HA09, for example, a malfunction of CCFL (EEFL) lamps, and outside in their power source - the inverter.
Without backlighting, sometimes you can see a barely noticeable image with a certain successful hit of external light on the screen.
Often, repairing the backlight requires disassembling the LTF320HA09 LCD panel - a painstaking process that requires special attention and accuracy from the craftsman. In such cases, there is a possibility, with the slightest negligence, to damage the glass or loops and the TV may become unrepairable.
We strongly do not recommend doing such work to owners of TVs and craftsmen who do not have experience in repairing LCD panels! Moreover, at home (at the owner's home).
If there is no image in the presence of backlight, the screen becomes slightly lighter when turned on, and if the TV is open, the light from the lamps can be seen through the holes in the panel case.
In this case, there may be a malfunction inside the panel, damage to strips, loops, the T-CON board (Timing Controller) may be defective. But the main board MainBoard BN41-01165A often turns out to be faulty, a software failure is also possible.
In such cases, the master first of all needs to check the main supply voltage of the panel at the LVDS connector, the fuses on the T-CON board or the panel brackets, as well as the supply and reference voltages for the line and column drivers - VGH, VGL, Vcom.
If all of the above measurements are within the normal range, then the oscilloscope must track the passage of LVDS signals from the MainBoard BN41-01165A, as well as synchronizing signals from the T-CON to the loops with drivers.
- The indicator blinks or glows constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-01165A 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). When repairing an MB board, you need to check its CPU components: SEMS12, DRAM: K4T511630G-HCE7, SPI Flash: 25L6405DMI-12G, NTP3200. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If the TV operates normally from external devices but does not tune into television channels, the tuner BN40-00137A DNOQ403SH151A (S) may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. You also need to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
I recommend LE32B530 TV owners for repair only to qualified specialists with the necessary work experience! Attempts to repair it yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Samsung LE32B530 Chassis N65A LE32B530, LE32B531, LE37B530P7, LE40B530, LE40B531, LE46B530. MODELS: LE32B53***, LE37B53***, LE40B53***, LE46B53***
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SAMSUNG LE32B530 LE32B530P7W , Main: BN41-01165A Weltrend WT61P8 .
DOWNLOAD PSU SCHEMATICS: ----------------> BN44-00261B Power supply.
The appearance of the MainBoard BN41-01165A is shown in the figure below:
BN41-01165A
BN41-01165A can be used in TVs:
SAMSUNG LE32B450C4 LE32B450C4W (Panel LTF320AP06), SAMSUNG LE37B530P7 LE37B530P7W (Panel AX094F040E), SAMSUNG LE40B530P7 LE40B530P7W (Panel LTF400HA08), SAMSUNG LE46B530P7 LE46B530P7W (Panel V460H1-L06 RevC1), SAMSUNG LE32B530 LE32B530P7W (Panel LTF320HA09), SAMSUNG LE40B531 LE40B531P7W (Panel LTF400HA08).
The appearance of the power supply
Main features of the SAMSUNG LE32B530 device:
Installed matrix (LCD-panel) LTF320HA09.
The matrix control uses the Timing Controller (T-CON) 320HAC2LV0.4.
To power the backlight, a converter is used, combined with a power supply, controlled by the BD9893F PWM controller. As power elements of the inverter, keys of type 2SK3561 are used.
The necessary supply voltages for all nodes of the SAMSUNG LE32B530 TV are generated by the BN44-00261B power module or its analogs using STR-W6252, A358F, FAN7530 (PFC) microcircuits and power switches of the FDPF5N50UT type.
MainBoard - the main board (motherboard) is a BN41-01165A module, using CPU chips: SEMS12, DRAM: K4T511630G-HCE7, SPI Flash: 25L6405DMI-12G, NTP3200, MX25L6445D, WT61P8 and others.
The tuner BN40-00137A DNOQ403SH151A (S) provides the reception of television programs and tuning to channels.
SAMSUNG LE32B530 TV with LCD display LTF320HA09, diagonal size 32 "(81 cm) 16: 9. Dynamic contrast ratio 60,000: 1 is achieved by special control of the backlight depending on the brightness of the scene.
The LTF320HA09 sensor and MainBoard BN41-01165A 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 input analog video signal is decoded in PAL, SECAM, NTSC systems. The graphic processing of the digital signal is carried out in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards.
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 x4, component, SCART, RGB, VGA, HDMI x3. 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 is capable of receiving TV channels in DVB-T, DVB-C standards.
The power consumed when operating from the network is 130 W. Power supply BN44-00261B.
Dimensions: with stand 801x563x220 mm, without stand 801x518x77 mm.
TV weight: with stand: 11.8 kg, without stand: 9.8 kg.
Attention! SAMSUNG LE32B530 LCD TV panel LTF320HA09 is the most expensive component.
Avoid impacts on the glass and pressure on the screen surface to avoid irreversible damage to the LCD panel!
There are files to download for the LE32B530P7WXRU model from the manufacturer:
Latest software updates, firmware (latest firmwares):
File type File name Version Date Size
Update file T-CRLPEUFC.exe T-CRLPEUFC-2009.0 09.09.2010 4.27 Mb
Update guide SW_upgrade_guide [Europe] .PDF 1.0 04.03.2010 16.22 Mb
User Manuals and Instructions:
File type File name Version Date Size
Files can be downloaded on the manufacturer's website for the LE32B530P7W model.
Quick Start Guide BN68-02365F-01Eng-0911.pdf 1.0 28.09.2009 1.86 Mb
user manual BN68-01893F-00L02-0309.pdf 1.0 22.04.2009 4.92 Mb
user manual BN68-02362G-00L03-0521.pdf 1.0 25.05.2009 7.88 Mb
user manual BN68-01893F-00L02-0309.pdf 1.0 10.04.2009 4.94 Mb
License [OPEN_SOURCE_GUIDE] BN68-02223A.pdf 1.1 15.01.2010 0.3 Mb
