Technical description and composition of the SUPRA STV-LC3215FD TV, panel type and modules used. The composition of the modules.SUPRA
Model: STV-LC3215FD
Chassis / Version: T.MS6M48.1C ver V3K03
Panel: V315H1-L02 Rev C1
T-CON: V470H2-C01
Inverter (backlight): T871029.28
Power Supply (PSU): HTX-OP4150-101
PWM Power: PWM SOT23-6 (Stb), L6562A, L6599
MOSFET Power: 2SK3568, FQPF9N50C, FQPF3N80C
MainBoard: T.MS6M48.1C
IC MainBoard: Cpu: MST6E48RHS-LF-Z1-SJ (A7MGA76B), Spi Flash: MX25L3206E
Tuner: ET-6T1E-LF-108W-A
STV-LC3215FD Specifications
SUPRA STV-LC3215FD
General recommendations for TV LCD repair
SUPRA with T.MS6M48.1C ver V3K03 chassis, like other TVs, it is advisable to start repairing with a careful examination of the external and internal elements and modules. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before starting the necessary measurements. Charred paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering on the leads of heating elements or transformers can often suggest the causes of a defect and possible consequences.
If the STV-LC3215FD TV does not turn on, does not emit any sounds when turned on, as well as no indicators on the front panel are lit or blinking, there is a high probability of a malfunction in the power module. In some cases, only the regulator or power converter of the control processor may be faulty, which is typical for some SUPRA models. The first step is to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse in the power supply is broken, in most cases a breakdown of the power switch (s) is detected, which can be integrated with a PWM controller, or a separate field-effect transistor can be used. You should also check the diodes of the rectifier bridge and the electrolytic capacitor of the mains rectifier filter.
The reasons for the breakdown of the power switch in switching power supplies (SMPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of a PWM controller microcircuit or breaks in resistors in its strapping.
Sometimes the SUPRA STV-LC3215FD TV does not have a picture, but there is sound, or the picture appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or the lamps themselves, which can be checked by replacing. In such cases, it is necessary to make sure that all electrolytic capacitors of the filter are in good working order for the power supply of the inverter itself, including the power supply unit (power supply unit). All necessary precautions must be taken when disabling the inverter protection during diagnostics and do not leave it disabled after repair is completed.
On the T.MS6M48.1C motherboard, in the event of a malfunction, first of all, check the operability of all stabilizers or power converters of microcircuits and, if necessary, update the software (software). When repairing an MB board, you need to check its components Cpu: MST6E48RHS-LF-Z1-SJ (A7MGA76B), Spi Flash: MX25L3206E. Defective elements must be replaced. If BGA chips are installed, their failure is usually localized by warming up. If chips with BGA soldering technology are used, the problem in its implementation is detected by local heating of the chip.
Owners of the STV-LC3215FD TV are advised to contact only qualified specialists with experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3215FD, Main: T.MS6M48.1C, Panel: V315H1-L02 Rev C1
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> HTX-OP4150-101 Power supply
The appearance of the MainBoard T.MS6M48.1C is shown in the figure below:
T.MS6M48.1C
The motherboard T.MS6M48.1C is manufactured using the MST6M48RHS microprocessor, which includes a graphic scaler controller. To organize the processor operation, an external RAM NT5TU32M16CG DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (25L32) (4Mb) as a read only memory (ROM) are used. A DC / DC converter with an output voltage of 1.2V is used to supply power to the processor core. Other nodes of the processor are powered by linear voltage stabilizers 2.5V, 3.3V. DDR RAM is powered by 1.8V, SPI FLASH ROM needs 3.3V.
It is advisable to start the MainBoard repair by checking the supply voltages in Stand-by mode 3.3V, it can be measured at pin 8 of the SPI microcircuit. In operating mode, check the operability of all linear stabilizers and DC / DC converter. In case there is a backlight and there is no image, it is necessary to check the power supply of the panel 5V or 12V (depending on the type of LCD panel), which must be present directly at the LVDS connector.
If the indicator signals the Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond's SPI microcircuits, it is advisable to replace them with new ones in case of software failures.
T.MS6M48.1C can be used in TVs:FUSION FLTV-32W4 (Panel DTW0315CK01-B), SUPRA STV-LC2615W (Panel TC260B301), SUPRA STV-LC2615F (Panel TC260F103 HD), SUPRA STV-LC3215FD (Panel V315H1-L02 Rev C1).
External view of the power supply
Main features of SUPRA STV-LC3215FD device:
Installed matrix (LCD panel) V315H1-L02 Rev C1.
Matrix control uses Timing Controller (T-CON) V470H2-C01.
The inverter T871029.28 is used to power the backlight lamps.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC3215FD TV is carried out by the HTX-OP4150-101 power module, or its analogs using PWM SOT23-6 (Stb), L6562A, L6599 microcircuits and 2SK3568, FQPF9N50C, FQPF3N80C power switches.
MainBoard - the main board (motherboard) is a T.MS6M48.1C module, using Cpu chips: MST6E48RHS-LF-Z1-SJ (A7MGA76B), Spi Flash: MX25L3206E and others.
Tuner ET-6T1E-LF-108W-A provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CMO
Model: V315H1-L02
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
SUPRA LCD TV STV-LC3215FD with V315H1-L02 LCD, 32 "(81 cm) 16: 9. Brightness 450 cd / m² backlit CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio 8000: 1 is achieved by special control of the backlight.Capabilities of the TV provide viewing of programs and films in high quality HD at a resolution of 1920x1080 pixels in graphic decomposition according to the standard 1080p (Full HD) .Input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation digital signal comes in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported media file formats: MP3, WMA, MPEG4, VideoCD, SVCD, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x3, S-Video, component, SCART x2, RGB, VGA, HDMI x2, USB. 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.
The power consumed by the TV in operating mode from the network is 180 watts.
Overall dimensions: 800x590x215 mm.
TV weight: 18.6 kg.
Attention! SUPRA STV-LC3215FD LCD TV panel V315H1-L02 Rev C1 is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!