Technical description and composition of the LG 47LB561V-ZE TV, panel type and applicable modules. The composition of the modules.LG LED
Model: 47LB561V-ZE 47LB561V
Chassis / Version: LC43B / LD43B / LB43T
Panel: LC470DUE (FG) (A3)
LED backlight: 6916L-1948A, 6916L-1949A - LG Innotek DRT 3.0 47
T-CON: 6870C-0481A
LED driver (backlight): integrated into PSU; 117V 230mA (47 inch)
PWM LED driver: BL0202B
MOSFET LED driver: AP9561AGH
Power Supply (PSU): EAX65423801 (2.1) Rev 2.0
PWM Power: MAP8800 (PFC), FA6A01N, NR134S
MOSFET Power: K7A60W
MainBoard: EAX65388005 (1.0)
IC MainBoard: LGE2132 / A7MKM69C, H27U1G8F2CTR, 74LCX244, TPS65282, 25Q80BVSIG, TAS5733
Tuner: TDJM-G101D EBL61400501
Specifications 47LB561V
LG 47LB561V-ZE
General repair guidelines for TV LCD LED
Possible malfunctions
- LG 47LB561V-ZE 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.
With such manifestations, the EAX65423801 power supply module usually fails. It is necessary to measure its output voltages and, in case of their absence, check the serviceability of power switches (K7A60W) and rectifier diodes in the converters for possible breakdown.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more often breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) MAP8800 (PFC), FA6A01N, NR134S, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
In such cases, the most likely malfunction of the LED backlight elements. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as a health indicator. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the EAX65388005 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 - LGE2132 / A7MKM69C, H27U1G8F2CTR, 74LCX244, TPS65282, 25Q80BVSIG, TAS5733 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 voltage at the terminals of the TDJM-G101D EBL61400501 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.
Attention TV owners! Self-repair attempts by LG 47LB561V-ZE are not recommended by the manufacturer and can lead to serious negative consequences!
FIRMWARE SPI FLASH LG 47LB561V-ZE 47LB561V , Main: EAX65388005 (1.0), Panel: LC470DUE
The appearance of the MainBoard EAX65388005 is shown in the figure below:EAX65388005
EAX65388005 can be used in TVs:
LG 32LB561U (Panel NC320DXN VSBP1), LG 42LB563V (Panel LC420DUE (FG)(A3)), LG 32LB565U ZQ (Panel LC320DXE (FG)(A3)), LG 42LB561V ZE (Panel LC420DUE (FG)(A3)), LG 49LB552V ZA (Panel LC490DUE (FG)(A6) ), LG 42LB565V (Panel LC420DUE (FG)(A3)), LG 32LB628U 32LB628U-ZB.BRUWLDU (Panel LC320DXE (FG)(P2)), LG 47LB561V-ZE 47LB561V (Panel LC470DUE( FG)(A3)).
The appearance of the power supply
Main features of the device LG 47LB561V-ZE:
Installed matrix (LED-panel) LC470DUE (FG) (A3).
The matrix control uses the Timing Controller (T-CON) 6870C-0481A.
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the BL0202B PWM controller. As power elements of the LED driver, keys of the type AP9561AGH are used.
The necessary supply voltages for all nodes of the LG 47LB561V-ZE TV are generated by the EAX65423801 power module or its analogs using MAP8800 (PFC), FA6A01N, NR134S microcircuits and K7A60W power switches.
MainBoard - the main board (motherboard) is an EAX65388005 module, using chips LGE2132 / A7MKM69C, H27U1G8F2CTR, 74LCX244, TPS65282, 25Q80BVSIG, TAS5733 and others.
Tuner TDJM-G101D EBL61400501 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC470DUE-SFU2
Type: a-Si TFT-LCD, Panel
Diagonal size: 47 inch
Resolution: 1920x1080, FHD
Display Mode: IPS, Normally Black, Transmissive
Active Area: 1039.68x584.82 mm
Surface: Antiglare (Haze 1%), Hard coating (2H)
Brightness: 300 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 9 (G to G) (B / W)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V