SAMSUNG LED
Model: LT32E310EX T32E310EX
Panel: CY-GJ032BGEV1V
LED backlight: BN41-02170A
T-CON: HV320FHB-N10 HV480FH2-600 Tcon Board 47-6021043
LED driver (backlight): integrated into PSU; 101V 450mA
Power Supply (PSU): BN44-00801A L32SF_FSM PSLF720S07A
MainBoard: BN41-02098B BN94-09314J
IC MainBoard: PI Flash: 25Q40CLSIP, RAM: K4B2G1646Q - BCKO, AUDIO: NTP7414, S24C256, AOZ3015PI
Tuner: BN40-00292B
Control: IR: BN41-02150a
Appearance
SAMSUNG LT32E310EX
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG LT32E310EX TV does not turn on, does not respond to the remote control and the control panel buttons, does not light up or blink indicators.
Failure in such cases should begin to be sought in the power supply circuits BN44-00801A. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches and rectifier diodes for a possible partial or complete breakdown.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short-circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the mains fuse and, less often, the current sensor at the source of the key are most often cut off.
The breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency-setting or damper ones, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- 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.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. 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 test 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, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the BN41-02098B motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, you should update or replace the software (software). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - PI Flash: 25Q40CLSIP, RAM: K4B2G1646Q - BCKO, AUDIO: NTP7414, S24C256, AOZ3015PI with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Before replacing the tuner BN40-00292B, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention TV owners! Attempts at self-repair of SAMSUNG LT32E310EX are not recommended by the manufacturer and can lead to serious negative consequences!
The appearance of the MainBoard BN41-02098B is shown in the figure below:
BN41-02098B
BN41-02098B can be used in TVs:
SAMSUNG UE32H4270AU UE32H4270 (Panel HH032AGH-R1), SAMSUNG LT24D310ES (Panel V236BJ1-LE2), SAMSUNG UE40H5000AK (Panel CY-GH040BGLV1V), SAMSUNG UE48H5270AU UE48H5270 (Panel CY-GH048BGLV1V), SAMSUNG UE32H4290AU UE32H4290 (Panel HH032AGH-R2), SAMSUNG UE40H5290AU UE40H5290 (Panel CY-GH040BGLV1V), SAMSUNG UE40J5000AU UE40J5000 (Panel CY-JJ040BGNV2V), SAMSUNG UE40H5020 UE40H5020AK (Panel CY-GH040BGSV1V), SAMSUNG UE40J5100AU (Panel CY-GH040BGSR1V), SAMSUNG T31D310EW (Panel CY-HH032AGSV1H), SAMSUNG UE48J5000AU (Panel CY-JJ048BGEV5V), SAMSUNG UE32H5020AK (Panel CY-GH032BGLV4V), SAMSUNG UE40J5120AU (Panel CY-GH040BGSV1V), SAMSUNG LT32E310EX T32E310EX (Panel CY-GJ032BGEV1V), SAMSUNG UE40H5270 UE40H5270AU (Panel CY-GH048BGLV1V), SAMSUNG UE32J5100AK UE32J5100 (Panel CY- GH032BGSV1V), SAMSUNG UE32H5000AK UE32H5000 (Panel CY-GH032BGLV1V), SAMSUNG UE48H5000 UE48H5000AK (Panel CY-GH048CSLV1V), SAMSUNG UE32J5120AK UE32JSV1B (CY.
The appearance of the power supply
Main features of the SAMSUNG LT32E310EX device:
Installed matrix (LED panel) CY-GJ032BGEV1V.
The matrix control uses the Timing Controller (T-CON) HV320FHB-N10.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the SAMSUNG LT32E310EX TV is carried out by the power module BN44-00801A, or its analogues.
MainBoard - the main board (motherboard) is a BN41-02098B module using PI Flash chips: 25Q40CLSIP, RAM: K4B2G1646Q - BCKO, AUDIO: NTP7414, S24C256, AOZ3015PI and others.
The tuner BN40-00292B provides the reception of television programs and tuning to channels.