Technical description and composition of the SUPRA STV-LC40ST670FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC40ST670FL
Chassis / Version: V1N10
Panel: V400HJ6-PE1
LED backlight: SEL400FY (QD0-300) -X4
T-CON: V390HJ5-XCPE1 + V390HJ1-XRME1
LED driver (backlight): integrated into PSU
PWM LED driver: OZ9967GN
MOSFET LED driver: ME15N10-G
Power Supply (PSU): 168P-L3L025-W0
PWM Power: TEA1733
MainBoard: 5800-A6M88G-0P10
IC MainBoard: EEPROM: 24C64, AUDIO: TPA3110D2
Tuner: CP + SAT
Control: IR: 5800-RNE510-RP00, WI-F: 5800-W81920-0P50
STV-LC40ST670FL Specifications
SUPRA STV-LC40ST670FL
General recommendations for TV LCD LED repair
Possible manifestations of defects
- SUPRA STV-LC40ST670FL TV does not turn on. There are no signs of operability. The indicators on the front panel do not light up or blink, the TV does not respond to the remote control and control buttons.
In some of these cases, the main switching power supply, module 168P-L3L025-W0, is faulty. Then you should measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of the power switches and rectifier diodes of the converters for a possible short circuit.
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or current sensor in the source of the key is often cut off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers TEA1733, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- There is no image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and disappear immediately.
Most likely in these cases is a malfunction of the LED backlight. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the 5800-A6M88G-0P10 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - EEPROM: 24C64, AUDIO: TPA3110D2 which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its pins with the board (detected by warming up).
The CP + SAT tuner malfunction is established after checking the software and all supply voltages at its outputs. The I2C bus data exchange between the tuner and the processor can be monitored with an oscilloscope.
Owners and users of the SUPRA STV-LC40ST670FL TV should remember that self-repair without special knowledge, skills and qualifications may be fraught with negative consequences that can lead to complete non-repairability of the device!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC40ST670FL V1N10, Main: 5800-A6M88G-0P10, Panel: V400HJ6-PE1
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> 168P-L3L025-W0 Power supply
The appearance of the MainBoard 5800-A6M88G-0P10 is shown in the figure below:5800-A6M88G-0P10
External view of the power supply
Main features of SUPRA STV-LC40ST670FL device:
Installed matrix (LED panel) V400HJ6-PE1.
Matrix control uses Timing Controller (T-CON) V390HJ5-XCPE1.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by an OZ9967GN PWM controller. The keys of the ME15N10-G type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC40ST670FL TV is carried out by the 168P-L3L025-W0 power module, or its analogs using TEA1733 microcircuits.
MainBoard - the main board (motherboard) is a 5800-A6M88G-0P10 module, using EEPROM chips: 24C64, AUDIO: TPA3110D2 and others.
The CP + SAT tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: INNOLUX
Model: V400HJ6-PE1 Rev.C2
Type: a-Si TFT-LCD, CELL
Diagonal size: 40 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 878.112x485.352 mm
Surface: Antiglare (Haze 1%)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.0% (with Polarizer)
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit)
Response Time: 8.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
SUPRA LED TV STV-LC40ST670FL with LCD V400HJ6-PE1, diagonal size 40 "(102 cm) 16: 9. The required brightness of the screen 380 cd / m² is provided by LED backlight. Dynamic contrast ratio of 100000: 1 is achieved by special control operation of LEDs depending on the illumination of areas in the scene.The display technology of the model uses LED LED backlighting.Capabilities of the TV provide viewing of broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD).
STV-LC40ST670FL TV is equipped with SMART software, built-in applications and the ability to work on the Internet. Internet connection can be made via Wi-Fi wireless connection. The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping takes place in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 12 W (2x6 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
An external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), audio x2, VGA, HDMI x3, MHL, USB x2, Ethernet (RJ-45), Wi-Fi. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080. The digital tuner is capable of receiving TV channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
Overall dimensions: 976x624x137 mm.
Attention! The V400HJ6-PE1 panel of the SUPRA STV-LC40ST670FL LED TV is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV non-repairable.