Technical description and composition of the LG 32LE5300 TV, panel type and applicable modules. The composition of the modules.LG LED
Model: 32LE5300 ZA
Chassis / Version: LD01D
Panel: T315HW05 V.1 // LC320EUH-SCA1
LED backlight: 3660L-0346A (LC320EUH-SCA1)
T-CON: T315HW05 V0 / V1 CTRL BD 31T12-C04
LED driver (backlight): integrated into PSU
Power Supply (PSU): EAY60802702 LGP32-10SLPBAU
PWM Power: L6599D, VIPER27L, 2843B
MOSFET Power: 1N5408, SD10N60, IRFI630G,
MainBoard: EAX61766102 (0) EBR65979083
IC MainBoard: CPU: LGE107D, Nand: HY27UF082G2B, SPI Flash: Winb25Q80, Audio: NTP7100
Tuner: TDTJ-S001D
Specifications 32LE5300
LG 32LE5300
General repair guidelines for TV LCD LED
If the TV does not turn on, no control lights are on or blinking, there are no sounds when you turn on, and there is not the slightest sign of operability - the most likely malfunction is in the power module. When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes and transistors 1N5408, SD10N60, IRFI630G, in the primary circuit.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective chip PWM L6599D, VIPER27L, 2843B from the manufacturer.
If, when you turn on the TV, the image appears and immediately disappears, or is missing initially when you turn on, but the sound has other functions that work, there is a high probability of a malfunction of the display backlight LEDs or the LED driver (power converter for the T315HW05 V.1 panel backlight // LC320EUH-SCA1 )
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
Diagnosis and repair of the EAX61766102 (0) EBR65979083 motherboard usually begins with a test of the performance of the stabilizers and power converters of the module chips. In some cases, a software update is required.
In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - CPU: LGE107D, Nand: HY27UF082G2B, SPI Flash: Winb25Q80, Audio: NTP7100 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
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 voltages on the terminals of the TDTJ-S001D tuner. 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.
Owners and users of the LG 32LE5300 TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
SCHEMATIC -------------> LG CHASSIS: LD01D; MODEL: 32LE5300/5308, 32LE5300/5308-ZA, 32LE530N/531C, 32LE530N/531C-ZA, 32LE5310/5318, 32LE5310/5318-ZB, 32LE5450, 32LE5450-ZA1
The appearance of the MainBoard EAX61766102 is shown in the figure below:EAX61766102
EAX61766102 can be used in TVs:
LG 42LE4500 ZA (Panel LC420EUG), LG 42LE4508 ZA (Panel T420HW07 V.5), LG 37LE5300 (Panel LC370EUH (SC)(A1)), LG 32LE4500 ZA (Panel T315HW05 V.3), LG 32LE5300 ZA (Panel T315HW05 V.1), LG 32LE3300 32LE3300-ZA.BRUWLJU (Panel LC320EXN (SC)(A1)), LG 37LE4500 37LE4500-ZA (Panel T370HW04 V.4 ), LG 32LE5450 -ZA (Panel LC320EUH (SC)(A1)).
The appearance of the power supply
Main features of the device LG 32LE5300:
Installed matrix (LED-panel) T315HW05 V.1 or LC320EUH-SCA1.
The matrix control uses the Timing Controller (T-CON) T315HW05.
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the LG 32LE5300 TV are generated by the EAY60802702 power supply module or its analogs using L6599D, VIPER27L, 2843B microchips and power switches of the type 1N5408, SD10N60, IRFI630G,.
MainBoard - the main board (motherboard) is an EAX61766102 module, using CPU chips: LGE107D, Nand: HY27UF082G2B, SPI Flash: Winb25Q80, Audio: NTP7100 and others.
The TDTJ-S001D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T315HW05 V1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA3, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 1.07B (8-bit + Hi-FRC), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 120Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (4 ch, 10-bit), 92 pins
Voltage: 12.0V