Technical description and composition of the LG 32LT360C TV, panel type and applicable modules. The composition of the modules.LG LED
Model: 32LT360C
Chassis / Version: LD2AC
Panel: LC320EXN
T-CON: LC320EXN-SEA1-k31 6870C-0414A; TL2345M
LED driver (backlight): PPW-LE32GX-0 (A) Rev0.4 6917L-0097A
PWM LED driver: BD9395EFV
Power Supply (PSU): LGP37C-12HPC
PWM Power: P1028P65, L6599AD (PWM Resonant)
MainBoard: EAX64651403 (1.0)
IC MainBoard: LGE2111A-T8, NTP-7500L, 25L8006E
Tuner: TDSS-G101D (EBL61060001)
Control: AKB73655802
Specifications 32LT360C
LG 32LT360C
General repair guidelines for TV LCD LED
A malfunction of the power supply is often manifested corny - the TV does not turn on, does not make any sounds, does not light up and does not blink with any indicators. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is cut off in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If the LG 32LT360C TV does not have an image, but there is sound, a malfunction in the backlight circuits of the LC320EXN LED panel is likely.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
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.
Repair or diagnostics of the EAX64651403 (1.0) motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, you should update the software (software).
In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - LGE2111A-T8, NTP-7500L, 25L8006E. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Tuner malfunction TDSS-G101D (EBL61060001) 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 controlled by an oscilloscope.
Owners and users of the LG 32LT360C 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 MANUAL -----------------------> LG CHASSIS LD2AC; MODEL : 32LT360C, 32LT360C-ZA
The appearance of the MainBoard EAX64651403 is shown in the figure below:EAX64651403
The appearance of the power supply
Main features of the device LG 32LT360C:
Installed matrix (LED-panel) LC320EXN.
The matrix control uses the Timing Controller (T-CON) LC320EXN-SEA1-k31.
The LED driver PPW-LE32GX-0 (A) is used to power the backlight LEDs, it is controlled by the BD9395EFV PWM controller.
The necessary supply voltages for all nodes of the LG 32LT360C TV are generated by the LGP37C-12HPC power supply module or its analogs using P1028P65, L6599AD (PWM Resonant) microcircuits.
MainBoard - the main board (motherboard) is an EAX64651403 module, using LGE2111A-T8, NTP-7500L, 25L8006E and other chips.
Tuner TDSS-G101D (EBL61060001) provides the reception of television programs and tuning to channels.
Information from an alternative source:
LG 32LT360C Chassis LD2AC
Panel Type (Matrix): LC320EXN
Motherboard: EAX64651 403 (1.0), LGE2111A-T8, NTP-7500L, 25L8006E, Tuner: TDSS-G101D (EBL61060001)
T-con: LC320EXN-SEA1-k31 6870C-0414A, TL2345M
LED Driver: PPW-LE32GX-0 (A) Rev0.4 6917L-0097A, BD9395EFV
PSU: LGP37C-12HPC, P1028P65, L6599AD
Remote control: AKB73655802,
Additional technical information about the panel:
Brand: LG Display
Model: LC320EXN-SDP1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 10%), Hard coating (2H)
Brightness: 380 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 68%
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V