Technical description and composition of the LG 32LS3510-ZB TV, panel type and applicable modules. The composition of the modules.LG LED
Model: 32LS3510-ZB
Chassis / Version: BRUWLJU LD21C LC21B
Panel: LC320EXN SEA2
LED backlight: 6922L-0010A, 6920L-0148A
T-CON: 6870C-0414A LC320EXN-SEA1 IPS65170
LED driver (backlight): 6917L-0097A PPW-LE32GX-O (A) Rev0.4
PWM LED driver: BD9395EFV (28)
MOSFET LED driver: FDD850N10L
Trans LED driver: S680 12BB
Power Supply (PSU): EAX64324701 - LGP32L-12P Rev1.0 - EAY62512301
PWM Power: FSL106HR (Standby DIP-8)
MainBoard: EAX64910001 (1.0) G4L_L_TU123 LD21C LC21B
IC MainBoard: 54319 TI291 (4x4), AP7175 (8), AO Z1051PI (8), STA380BWE (12x12)
Tuner: TDSS-G101D
Control: AKB73655802
Specifications 32LS3510
LG 32LS3510-ZB
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs LG 32LS3510-ZB, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
In the absence of any signs of operability, when the LG 32LS3510-ZB does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the power module LGP32L-12P Rev1.0 EAX64324701 EAY62512301 TV. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, PWM controller FSL106HR (8), which can be checked only by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the LG 32LS3510-ZB does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the backlight circuits of the LC320EXN SEA2 panel is likely. The LEDs or the power converter - LED driver 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 LED driver, and check the LEDs, connecting obviously known good diagnostics.
To check the health of the LEDs, as well as contact connections in the ruler circuit, the panel must be disassembled.
A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
The motherboard G4L_L_TU123 LD21C LC21B EAX64910001 (1.0) must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements 54319 TI291 (4x4), AP7175 (8), AO Z1051PI (8), STA380BWE (12x12). BGA chip malfunctions are usually easy to detect by warming up.
If you suspect a malfunction of the TDSS-G101D tuner, first of all, you need to make sure that the voltage of the varicaps (30-33V) is present on the corresponding output of the tuner, as well as other voltage supplying it.
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.
SCHEMATIC MANUAL -----> LG 32LS3500/350S/350T/3510, 32LS3590/359S/359T, 32LS3500/350S/350T-ZA 32LS3510-ZB, 32LS3590/359S/359T-ZC Chassis LD21C.
PSU SCHEMATIC ---------> LGP32L-12P EAY62512301 EAX64324701. Power supply
The appearance of the MainBoard EAX64910001 is shown in the figure below:EAX64910001
EAX64910001 can be used in TVs:
LG 32LS340T (Panel LC320DXN), LG 32LS3510-ZB (Panel LC320EXN SEA2), LG 42CS460 (Panel LC420WUE (SC)(A3)), LG 32LS350T ZA (Panel T320XVN01.1), LG 42LS345T (Panel HC420DUN-SLCP1 11XX), LG 32CS465 ZA (Panel LC320WXN (SC)(A4)), LG 32LS345T (Panel 331537561 KENMOS 1365X768).
The appearance of the power supply
Main features of the device LG 32LS3510-ZB:
Installed matrix (LED-panel) LC320EXN SEA2.
The matrix control uses the Timing Controller (T-CON) 6870C-0414A.
The LED driver 6917L-0097A is used to power the backlight LEDs, it is controlled by the BD9395EFV PWM controller (28). In the converter of the LED driver, a transformer S680 12BB is installed. As the power elements of the LED driver, keys of the FDD850N10L type are used.
The necessary supply voltages for all nodes of the LG 32LS3510-ZB TV are generated by the EAX64324701 power supply module or its analogs using FSL106HR (Standby DIP-8) microcircuits.
MainBoard - the main board (motherboard) is an EAX64910001 module, using 54319 TI291 (4x4) chips, AP7175 (8), AO Z1051PI (8), STA380BWE (12x12) and others.
The TDSS-G101D tuner provides TV reception and channel tuning.
Information from an alternative source:
LG 32LS3510-ZB chassis LD21C
Panel Type (Matrix): T320XVN01.1
Motherboard: EAX64664903 (1.0), LGE2111A-T8, Tuner: TDSS-G101D (capacity in the tuner from the 1000p socket)
T-con: T315XW02 V2 TEST BD, Led Driver: 32T21-D01, L302-1F
PSU: EAX64324701 (1.5), FSL106HR
Remote control: AKB73655802
Additional technical information about the panel:
Brand: LG Display
Model: LC320EXN-SEA2
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 1%), Hard coating (3H)
Brightness: 350 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