Technical description and composition of the SUPRA STV-LC32810WL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC32810WL
Chassis / Version: TP.VST59.P83 V2L12
Panel: TC315F3E5-A
LED backlight: WD315-5620TML-0607 (L / R) rev_D
T-CON: V315H3-CPE5
LED driver (backlight): TP.VST59.P83
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536 (PWM SOT23-6)
MOSFET Power: 7N60
MainBoard: TP.VST59.P83
IC MainBoard: CPU: TSUMV59XE, SPI FLASH: W25Q32BVS, AUDIO: TPA3110D2
Tuner: CDT-3NP5I1-10
Appearance
SUPRA STV-LC32810WL
General recommendations for TV LCD LED repair
Possible manifestations of defects
- SUPRA STV-LC32810WL TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or blink, the TV does not respond to the remote control and control buttons.
A malfunction in such cases should be looked for in the elements of the power source - the mains voltage converter (AC / DC), which is located on the main board MainBoard TP.VST59.P83. Its output voltages should be measured, and if they are absent, check the serviceability of the power switches (7N60) of the converters and rectifier diodes for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work in an emergency in the short-circuit mode, and in case of a short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM regulator, in frequency-setting or damper circuits, as well as in negative feedback stabilization. Chips PWM (PWM) LD7536 (PWM SOT23-6) are usually checked by replacing them with new ones, or known to be working properly.
- There is no picture, there is sound, it reacts to the remote control, the channels are switched. In some cases, the image appears when turned on and disappears immediately.
Usually, in such cases, a malfunction is detected in the nodes of the backlight of the LED panel. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
Without a special current source, it is impossible to check the line of LEDs connected in series, and it is unsafe for them to use any voltage sources above 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Typically, Chinese multimeters with a 9V power supply lightly light up one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, the black one to the cathode. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or broken into the K / Z.
- The TV does not turn on, the indicator signals standby or operating mode, or blinks.
Repair or diagnostics of the TP.VST59.P83 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Often the MB (SSB) board needs to be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: TSUMV59XE, SPI FLASH: W25Q32BVS, AUDIO: TPA3110D2 and replace the failed chips with new ones. Some malfunctions may be associated with the use of BGA soldering technologies in modern Main Board. Typically, such defects are detected by local heating of the chip.If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the outputs of the CDT-3NP5I1-10 tuner match. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.
Users and owners of TVs should remember that attempts to self-repair a SUPRA STV-LC32810WL TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> TP.VST59.P83-65W18
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC32810WL, Main: TP.VST59.P83, Panel: TC315F3E5-A
Panel: TC315F3E5-A R213EO607 RoHS.
T-Con: V315H3-CPE6 V315H3-CPE6 (U1-CM2801A, UP1-CM501, Ug2 - 9674E).
Main: TP VST59.P83 (L12100245-0A00729/CKJH121061 V315H3-PE5 65W36 RoHS)
The appearance of MainBoard TP.VST59.P83 and voltage measurements at test points are shown in the figure below:TP.VST59.P83
The TP.VST59.P83 motherboard is combined with a power supply module and is an independent device based on the TSUMV59Xxx multifunctional processor. Repair of such a board must begin with checking the power supply elements, as well as the operability of voltage converters and linear stabilizers necessary to provide power to certain processor nodes, in particular: core power supply + 1.2V, built-in DDR + 1.8V memory and stand-by mode node by 3.3V. The supply voltage of the LCD panel is 5V or 12V, depending on the type of panel used, it is necessary to check directly on the LVDS connector.
TP.VST59.P83 can be used in TVs:
AKAI LEA-28A08W (Panel ST2751A01-1), ERISSON 39LEN52 (Panel TLV3931-02), ERISSON 32LEN52 (Panel TLV3231-01), FUSION FLTV-32L28B (Panel TH315B051-MD1), FUSION FLTV-39LF28B (Panel V390HJ1-P02), FUSION FLTV-32L41B (Panel DBMS315LK09-C), FUSION FLTV-40LF28B (Panel DBMS400LK01-A), HYUNDAI H-LED32V18 (Panel CX315DLEDM T320XVN02.A ), MYSTERY MTV-4023LW (Panel CX390DLEDM / T390HVN04.0), ROLSEN RL-39D1305F (Panel V390HJ1-P02 Rev. C1), RUBIN RB-32D3U (Panel T320XVN01.0), RUBIN RB-39D3F (Panel CX390DLEDM), SHIVAKI STV-40LED5 (Panel V390HJ1-P01 Rev C1), SUPRA STV-LC3225AWL (Panel TH315B051-MD2), SUPRA STV-LC32T810WL (Panel TC315F3E5-A), SUPRA STV-LC32880WL (Panel HE315GH-E77GM\PW1 ), SUPRA STV-LC2825WL (Panel SM275TC30), SUPRA STV-LC32820WL (Panel TC315FJE1-MD4), SUPRA STV-LC32810WL (Panel TC315F3E5-A), TELEFUNKEN TF-LED32S7 (Panel ST3151A05-5 CX315DLEDM).
Main features of SUPRA STV-LC32810WL device:
Installed matrix (LED panel) TC315F3E5-A.
Matrix control uses Timing Controller (T-CON) V315H3-CPE5.
The LED driver TP.VST59.P83 is used to power the backlight LEDs, it is controlled by the OB3350CP PWM controller.
The power module is combined with the MainBoard and is made according to the AC / DC flyback converter circuit using LD7536 microcircuits (PWM SOT23-6) and power switches of the 7N60 type.
MainBoard - the main board (motherboard) is a TP.VST59.P83 module using CPU chips: TSUMV59XE, SPI FLASH: W25Q32BVS, AUDIO: TPA3110D2 and others.
The CDT-3NP5I1-10 tuner provides reception of television programs and tuning to channels.