Technical description and composition of the SAMSUNG LE32C630 TV, type of panel and applicable modules. The composition of the modules.SAMSUNG
Model: LE32C630 LE32C630K1W
Chassis / Version: N84A
Panel: LTF320HF01
T-CON: S120APM4C4LV0.4
Inverter (backlight): SSI320_4UH01 REV0.3
PWM Inverter: SSI091ASN
MOSFET Inverter: AOD4186
Power Supply (PSU): BN44-00339A PSLF211401
PWM Power: FAN7530 (PFC), FSFR1800US, ICE3BR1765J (Stb)
MOSFET Power: 13NM60N
MainBoard: BN41-01567A
IC MainBoard: CPU: SEMS18, SUB: WT61P802, NAND: KFG1G16U2D
Tuner: BN40-00197A DTS40FVL082A
Specifications LE32C630
SAMSUNG LE32C630
General repair guidelines for TV LCD
Possible malfunctions
- The SAMSUNG LE32C630 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.
With such manifestations, the BN44-00339A power supply module usually fails. It is necessary to measure its output supply voltage, and in case of their absence, check the serviceability of the power switches (13NM60N) of the converters and rectifier diodes for the probability of breakdown in PN semiconductor junctions.
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 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. FAN7530 (PFC), FSFR1800US, ICE3BR1765J (Stb) PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing them with new ones, or obviously working ones.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
A defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, the breakdown keys and the transformer secondary windings must be ringed in its converter.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protection circuits should be restored immediately after the repair is completed.
- 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 BN41-01567A motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, you should update or replace the software (software). In cases of attempts to repair the MB board (SSB), it is necessary to check the health of its elements - CPU: SEMS18, SUB: WT61P802, NAND: KFG1G16U2D which may require replacement with new ones. If the BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
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 tuner BN40-00197A DTS40FVL082A. 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! Attempts to self-repair SAMSUNG LE32C630 are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual SAMSUNG LE32C63*, LE37C63*, LE40C63*, LE46C63*, LE32C65*, LE37C65*, LE40C65*, LE46C65*, LE55C65*, LE32C67*, LE37C67*, LE40C67*, LE46C67*, LE55C67* Chassis N84A.
PSU SCHEMATICS: BN44-00339A Power supply.
FIRMWARE ---- > WT61P802 SAMSUNG LE32C630 Weltrend WT61P802
The appearance of the MainBoard BN41-01567A is shown in the figure below:BN41-01567A
BN41-01567A can be used in TVs:
SAMSUNG LE32C630 LE32C630K1W (Panel LTF320HF01), SAMSUNG LE37C630 LE37C630K1W (Panel T370HW03 VH).
The appearance of the power supply
Main features of the SAMSUNG LE32C630 device:
Installed matrix (LCD panel) LTF320HF01.
The matrix control uses the Timing Controller (T-CON) S120APM4C4LV0.4.
The SSI320_4UH01 inverter is used to power the backlight, controlled by the SSI091ASN PWM controller. As power elements of the inverter, keys of the AOD4186 type are used.
The necessary supply voltages for all nodes of the SAMSUNG LE32C630 TV are generated by the BN44-00339A power supply module or its analogs using FAN7530 (PFC), FSFR1800US, ICE3BR1765J (Stb) microcircuits and 13NM60N power switches.
MainBoard - the main board (motherboard) is a BN41-01567A module, using CPU chips: SEMS18, SUB: WT61P802, NAND: KFG1G16U2D and others.
The tuner BN40-00197A DTS40FVL082A provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTF320HF01
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 5.5%), Hard coating (2H)
Brightness: 500 cd / m²
Contrast Ratio: 6000: 1
Display Colors: 1.07B (8-bit + Dithering), CIE1931 72%
Frequency: 120Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (4 ch, 10-bit), 82 pins
Voltage: 12.0V
