Technical description and composition of the SUPRA STV-LC40ST900FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC40ST900FL
Chassis / Version: Ver. V1N07, V2N08
Panel: V400HJ6-PE1
LED backlight: 3BL-T8104102-004B, 6050120010, JS1-UY33EG7D-0011
T-CON: L13Z7 6201B000LX000
LED driver (backlight): integrated into PSU
Power Supply (PSU): HKL-390201 EPR 401-2E201-D4110
MainBoard: ST6369IV-E1C // CV628H-T42
IC MainBoard: DRAM: K4B4G1646B-HCK0; NAND Flash: THGBM5G5A1JBAIR; SPI Flash: 25Q32, 25Q80;
Control: IR: 6003010171
STV-LC40ST900FL Specifications
SUPRA STV-LC40ST900FL
General recommendations for TV LCD LED repair
Malfunctions of the HKL-390201 EPR 401-2E201-D4110 power supply module can be expressed in different ways, for example, SUPRA STV-LC40ST900FL does not turn on at all and the control lamps on its front panel do not light up or blink, all signs of operability are missing. It is advisable to start diagnostics of the power supply module by checking the condition of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. In the event that the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in a breakdown state in such situations.
Power switches in switching power supplies (SMPS) fail for no reason very rarely and, in case of their breakdown, it is necessary to look for a malfunction in the stabilization circuits, checking electrolytic capacitors, semiconductor devices and resistors in the primary circuit. The reason may be a malfunction of the PWM regulator microcircuit, which can only be checked by replacing it with a new or known good one.
If SUPRA STV-LC40ST900FL has no image, but there is sound, there may be a malfunction of the V400HJ6-PE1 panel backlight LEDs or their power converter - LED driver.
To check the health of the LEDs, as well as the contact connections in the ruler circuit, the panel must be disassembled.
To check the LED strips for breakage without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter; a voltage of the order of several tens of volts is required.
On the ST6369IV-E1C motherboard, in case of a malfunction, you should first check the operability of all stabilizers and power converters of microcircuits, as well as, if necessary, update the software (software).
In some cases, the elements of the MB (SSB) board - DRAM: K4B4G1646B-HCK0; need to be checked or replaced (if necessary); NAND Flash: THGBM5G5A1JBAIR; SPI Flash: 25Q32, 25Q80; ... In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.
Owners and users of the SUPRA STV-LC40ST900FL 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-LC40ST900FL Ver. V1N07, V2N08, Main: CV628H-T42, Panel: V400HJ6 (HK395WLEDM-CH56H)
The appearance of the MainBoard CV628H-T42 is shown in the figure below:CV628H-T42
CV628H-T42 can be used in TVs:
BBK 43LEX-5009/FT2C (Panel LC430DUY (SH)(A1)), BBK 40LEX-5025/FT2C (Panel V400HJ6-PE1 DLEDSV400FHD), BBK 32LEX-5027/T2C (Panel V320BJ6-Q01 Rev.C1), SUPRA STV-LC40ST900FL (Panel V400HJ6-PE1).
External view of the power supply
Main features of SUPRA STV-LC40ST900FL device:
Installed matrix (LED panel) V400HJ6-PE1.
Matrix control uses the L13Z7 Timing Controller (T-CON).
A converter combined with a power supply is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC40ST900FL TV is carried out by the HKL-390201 power module, or its analogs.
MainBoard - the main board (motherboard) is an ST6369IV-E1C module, using DRAM chips: K4B4G1646B-HCK0; NAND Flash: THGBM5G5A1JBAIR; SPI Flash: 25Q32, 25Q80; and others.
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-LC40ST900FL with V400HJ6-PE1 LCD, 39 "(99 cm) 16: 9. The required brightness of the screen of 400 cd / m² is provided by LED backlight. Dynamic contrast ratio of 100,000: 1 is achieved by special control operation of LEDs depending on the illumination of areas in the scene.This model uses an LED-panel with an edge arrangement of backlighting LEDs - Edge LED.The TV capabilities provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution in 1080p (Full HD ).
STV-LC40ST900FL has built-in SMART software and pre-installed Android Operating System. 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.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x4, USB x3, 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 standards.
Dimensions: With stand 883x546x250 mm, Without stand 883x513x73 mm.
TV weight: 7.63 kg.
Attention! SUPRA STV-LC40ST900FL LED TV panel V400HJ6-PE1 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.