Technical description and composition of the LG 32LK530 TV, panel type and applicable modules. The composition of the modules.LG
Model: 32LK530
Chassis / Version: LD01U
Panel: LC320WUD (SC) (A3)
T-CON: 32/37/47 FHD 120HZ 6870C-0312B
Inverter (backlight): 6632L-0636A 3PEGA20003A-R
Power Supply (PSU): EAX63985401 LGP32-11P
PWM Power: L6599AD (PWM Resonant), 3BR4765JZ (Standby)
MOSFET Power: MDF6N60
MainBoard: EAX64290501 (0)
IC MainBoard: CPU: LGE107DC-RP, DDR: H5TQ1G63DFR-PBC, Nand: K9F1G08U0D, FLASH 25Q80, EEPROM 24C16
Tuner: TDTJ-S001D
Control: Remote: AKB72915244
Specifications 32LK530
LG 32LK530
General recommendations for repairing TV LCD
Repair of all electronic devices, including the LG TV, made on the basis of the LD01U chassis, it is advisable to start with an external examination of its external and internal elements. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
Sometimes the LG 32LK530 TV just doesn’t turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is the failure of the LGP32-11P general power supply module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). 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 32LK530 does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors. When disabling the inverter protection (to enable diagnostics), special care must be taken in view of the risk of failure of the power elements. After completing all repair work, it is imperative to restore the protection circuits for full and safe further operation of the TV by the user.
If the EAX64290501 (0) motherboard is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement. In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - CPU: LGE107DC-RP, DDR: H5TQ1G63DFR-PBC, Nand: K9F1G08U0D, FLASH 25Q80, EEPROM 24C16 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
LG Chassis LD01U, 32LK530/530A/530N, 32LK530/530A/530N-ZC SERVICE MANUAL
The appearance of the MainBoard EAX64290501 is shown in the figure below:EAX64290501
EAX64290501 can be used in TVs:
LG 32LV2500-ZA (Panel T315XW06 V.3), LG 37LV3500-ZA (Panel T370HW05 V.1), LG 42LV3400-ZA (Panel T420HW08 V.1), LG 32LK530 (Panel LC320WUD (SC)(A3)), LG 37LK430 (Panel LC370WUE), LG 32LK451 ZA (Panel T315HW04 V.9), LG 42LV3551 (Panel LC420EUN (SD) (V3)), LG 47LW4500 (Panel LC470EUF (SD)(F2)), LG 32LK551 ZB (Panel LC320WUD (SC)(A2)), LG 42LV3500 (Panel LC420EUN (SD)(V3)), LG 42LK551 ZB (Panel V420H2-LH5), LG 42LK451 42LK451-ZG.BRUYLJU (Panel T420HW09 V0), LG 42LK530 (Panel LC420WUF (SC)(A2)), LG 47LK950 ZA (Panel LC470WUF (SD)(P1)), LG 32LW4500 ZB (Panel LC320EUD (SD)(P1)), LG 42LW4500 ZB (Panel LC420EUF (SD)(PX)), LG 42LV4500 DA (Panel LC420EUF (SD)(A1)), LG 32LV4500 (Panel LC320EUD (SD)(A4)), LG 42LV369C (Panel T420HW08 V.9).
The appearance of the power supply
Main features of the device LG 32LK530:
Installed matrix (LCD panel) LC320WUD (SC) (A3).
The matrix control uses the Timing Controller (T-CON) 32.
An inverter 6632L-0636A is used to power the backlight.
The necessary supply voltages for all nodes of the LG 32LK530 TV are generated by the EAX63985401 power supply module or its analogs using L6599AD (PWM Resonant), 3BR4765JZ (Standby) microcircuits and MDF6N60 power switches.
MainBoard - the main board (motherboard) is an EAX64290501 module using CPU chips: LGE107DC-RP, DDR: H5TQ1G63DFR-PBC, Nand: K9F1G08U0D, FLASH 25Q80, EEPROM 24C16 and others.
The TDTJ-S001D tuner provides TV reception and channel tuning.