Technical description and composition of the LG 32LS5600 TV, panel type and applicable modules. The composition of the modules.LG LED
Model: 32LS5600
Chassis / Version: LD21B / LC21B
Panel: T320HVN01.0
LED backlight: 74.32T20.001-1-DS1 12301D 7030PKG 48EA_74580 Rev 0.2 20111025
T-CON: T315HW07 31T14-C0J
LED driver (backlight): 4H-V3416.001 (V341-001, 005)
Power Supply (PSU): EAX64310001 (1.7) EAY62512401 PSLC-L115A 3PAGC10080A-R
PWM Power: FAN7930B (PFC), L6599AD, ICE3BR4765JZ (ICE3B0365J Standby)
MOSFET Power: TK6P60V
MainBoard: EAX64317403 (1.0)
IC MainBoard: CPU: LGE2111A-T8, Nand: NAND01GW3B2CN6E, DDR: H5TQ1G63DFR-H9C, SPI Flash: W25Q80BV
Tuner: TDSQ-G001D
Control: IR: EBR74986702 LM35-55 MB32B00
Specifications 32LS5600
LG 32LS5600
General repair guidelines for TV LCD LED
Possible malfunctions
- LG 32LS5600 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.
Failure in such cases should begin to be found in the EAX64310001 power supply circuits. It is necessary to measure its output voltages and, if they are absent, check the power switches (TK6P60V) and rectifier diodes for the probability of short circuit in the converters.
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.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM chips FAN7930B (PFC), L6599AD, ICE3BR4765JZ (ICE3B0365J Standby) are usually checked by replacing with new, or obviously working.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
In some of these cases, the malfunction is caused by the lack of a backlight display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
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 turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the EAX64317403 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 cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, it may sometimes be necessary to replace its CPU chips: LGE2111A-T8, Nand: NAND01GW3B2CN6E, DDR: H5TQ1G63DFR-H9C, SPI Flash: W25Q80BV and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before changing the TDSQ-G001D 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 pins and checked for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
It should be remembered! Attempts to self-repair the LG 32LS5600 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
SCHEMATIC-----------------------> LG 32LS5600/560S/560T/5620, 32LS5600/560S/560T-ZC, 32LS5620-ZD, 32LS5610/561T, 32LS5610/561T-ZA Chassis LD21B.
The appearance of the MainBoard EAX64317403 is shown in the figure below:
EAX64317403
EAX64317403 can be used in TVs:
LG 32LM580S (Panel LC320EUN (SE)(F2)), LG 32LS5610 (Panel T320HVN01.0), LG 42LM580S ZA (Panel LC420EUE (SE)(F1)), LG 42LS5620 (Panel T420HVN01.1), LG 32LS5600 (Panel T320HVN01.0), LG 42LM585S -ZD (Panel LC420EUE (SE)(F1)).
The appearance of the power supply
Main features of the device LG 32LS5600:
Installed matrix (LED-panel) T320HVN01.0.
The matrix control uses the Timing Controller (T-CON) T315HW07.
The LED driver 4H-V3416.001 is used to power the backlight LEDs.
The necessary supply voltages for all nodes of the LG 32LS5600 TV are generated by the EAX64310001 power module or its analogs using FAN7930B (PFC), L6599AD, ICE3BR4765JZ (ICE3B0365J Standby) microcircuits and TK6P60V power switches.
MainBoard - the main board (motherboard) is an EAX64317403 module using CPU chips: LGE2111A-T8, Nand: NAND01GW3B2CN6E, DDR: H5TQ1G63DFR-H9C, SPI Flash: W25Q80BV and others.
The TDSQ-G001D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T320HVN01.0
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
