Technical description and composition of the SUPRA STV-LC3219W TV, panel type and modules used. The composition of the modules.SUPRA
Model: STV-LC3219W
Chassis / Version: T.MS6M182.81B 11224
Panel: LC320WXE
MainBoard: T.MS6M182.81B 11224
IC MainBoard: CPU: MST6E182VS-LF-Z1, Flash: 25Q32
Tuner: AFT7 / W130G
Appearance
SUPRA STV-LC3219W
General recommendations for TV LCD repair
Repair and diagnostics of any electronic device, in particular SUPRA with T.MS6M182.81B 11224 chassis, it is advisable to begin with a careful external examination of the internal and external elements. Many visible changes in the state of elements make it possible to determine the further direction of troubleshooting and localization of the defect. If charred resistors, swollen electrolytic or sintered capacitors, ring cracks in the soldering of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction, as well as to check the connected elements and assemblies.
If SUPRA STV-LC3219W does not turn on, no indicator lamps on the front panel will light up or blink, therefore, there is a very high probability of a power module malfunction. In some cases, only the processor power supply regulator may be faulty. 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.
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-LC3219W has no picture, but there is sound and the TV is controlled from the remote control, a malfunction in the display backlight units is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when the TV is turned on, an image appears and immediately disappears. First of all, it is necessary to make sure that the electrolytic capacitors of the rectifier filter supplying the inverter are in good working order, and check the LCD lamps by connecting external and known good diagnostics to the connectors. If, when diagnosing a malfunction, it is required to turn off the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are completed, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
Repair of the motherboard T.MS6M182.81B 11224 must begin with diagnosing and checking all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM. When repairing an MB board, you need to check its components CPU: MST6E182VS-LF-Z1, Flash: 25Q32. 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.
Once again, we remind TV users: do not attempt to repair yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repairs only to professionals with sufficient experience in the field of electronic repair.
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3219W, Main: T.MS6M182.81B 11224, Panel: LC320WXE
The appearance of the MainBoard T.MS6M182.81B is shown in the figure below:T.MS6M182.81B
T.MS6M182.81B can be used in TVs:
DIGITAL DLE-2610 (Panel V260CD1B23-2), FUSION FLTV-32H17 (Panel LC320WXE (SB)(V2)), SUPRA STV-LC3244WL (Panel LTA320AN01), SUPRA STV-LC3244WLD (Panel LTA320AN01 ), SUPRA STV-LC3219W (Panel LC320WXE), SUPRA STV-LC32S650WL (Panel MT3151A03-1 VER22), SUPRA STV-LC46S990FL (Panel TC460FPE5).
Main features of SUPRA STV-LC3219W device:
Installed matrix (LCD panel) LC320WXE.
The necessary supply voltages for all nodes of the SUPRA STV-LC3219W TV are provided by a switching power supply.
MainBoard - the main board (motherboard) is a T.MS6M182.81B module, using CPU chips: MST6E182VS-LF-Z1, Flash: 25Q32 and others.
The AFT7 / W130G tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC320WXE-SBD1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 12 pcs EEFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V