Technical description and composition of the LG 26LV5510 TV, panel type and applicable modules. The composition of the modules.LG LED
Model: 26LV5510
Chassis / Version: LD01P / LD01T
Panel: LC260EUN (SD) (A1)
LED backlight: EDGE LED LG Innotek 26 E Rev 0.9 7020PKG
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): PSAA-L010A Adapter 24V 2.5A
MainBoard: EAX63562403 (0) EBR73156235
IC MainBoard: CPU: LGE2111-T8, SPI FLASH: MX25L8005, EEPROM: 24C08
Tuner: TDTJ-S001D
Specifications 26LV5510
LG 26LV5510
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The LG 26LV5510 TV does not turn on, does not respond to the remote control and buttons on the control panel, does not light up or blink indicators.
In some of these cases, a malfunction is detected in the PSAA-L010A power supply module.
The owner of a TV can purchase an external power supply unit such as PSAA-L010A and repairing it is not always advisable. In any case, the simplest typical defects characteristic of most IIP schemes can be easily detected and eliminated after opening. It is necessary to measure its output voltages, and in case of their absence (full or partial), it is necessary to check the serviceability of the power switches of the converters and rectifier diodes for the presence of a possible short circuit.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often 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, in the absence of visible damage or frank 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.
Often in such cases, there is no LED backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the EAX63562403 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - CPU: LGE2111-T8, SPI FLASH: MX25L8005, EEPROM: 24C08 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Before changing the TDTJ-S001D tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner terminals and checked for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Owners and users of the LG 26LV5510 TV should 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!
The appearance of the MainBoard EAX63562403 is shown in the figure below:EAX63562403
Main features of the device LG 26LV5510:
Installed matrix (LED-panel) LC260EUN (SD) (A1).
To power the backlight LEDs, a converter is used, combined with the main board EAX63562403.
An external source such as PSAA-L010A Adapter 24V 2.5A is used to power all internal nodes of the LG 26LV5510 TV.
MainBoard - the main board (motherboard) is an EAX63562403 module using CPU chips: LGE2111-T8, SPI FLASH: MX25L8005, EEPROM: 24C08 and others.
The TDTJ-S001D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC260EUN-SDA1
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 576x324 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V