Technical description and composition of the SUPRA STV-LC32170F TV, panel type and modules used. The composition of the modules.SUPRA
Model: STV-LC32170F
Chassis / Version: T.MS18VG.81B 12145
Panel: HK315TVM-HHC9H
T-CON: 19-100299
Inverter (backlight): integrated into PSU
PWM Inverter: SG3525AN
Power Supply (PSU): IPB733V4
PWM Power: LD7535 (PWM SOT23-6 KrP35), L6562A (PFC)
MainBoard: T.MS18VG.81B 12145
IC MainBoard: MST6M182VG-LF-Z1, SPI Flash: 25Q32BSIG, TPA3110D2, IT6633E-P, AIC2857F
Tuner: CDT-3SP5I2-36
Control: IR: 19V1-IR
STV-LC32170F Specifications
SUPRA STV-LC32170F
General recommendations for TV LCD repair
Diagnostics of malfunctions and repair of SUPRA with chassis T.MS18VG.81B 12145, like other electronic devices, it is recommended to start with an external examination of external and internal elements. Often, based on external signs and the nature of damage to elements, it becomes possible to draw some conclusions and determine a further algorithm for searching for a defect before taking the necessary measurements at control points. If ring cracks are found in the soldering of the element terminals or broken connecting tracks, swollen capacitors or charred resistors - all this may be characteristic signs of the causes or consequences of an already known typical malfunction.
If SUPRA STV-LC32170F 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. In the absence of swollen capacitors of the secondary rectifier filter, diagnostics of the power supply should begin with checking the fuse and, if it breaks, it is necessary first of all to check all power semiconductor elements of the primary circuit - diodes and transistors for the likelihood of an avalanche or thermal breakdown.
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-LC32170F 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). When turning off the protection in order to ensure the possibility of diagnosing a malfunction, special care should be taken, and after all repair work is completed, it is imperative to restore the circuits and the operation of the inverter protection for the further safe operation of the TV.
On the motherboard T.MS18VG.81B 12145, in the event of a malfunction, you should first check the operability of all stabilizers or power converters of microcircuits and, if necessary, update the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - Flash 25Q32, 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 (indicated by warming up).
Remember! Attempts to self-repair the SUPRA STV-LC32170F TV by users without appropriate qualifications and the necessary experience can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC32170F, Main: T.MS18VG.81B 12145, Panel: HK315TVM-HHC9H
The appearance of the MainBoard T.MS18VG.81B is shown in the figure below:T.MS18VG.81B
T.MS18VG.81B can be used in TVs:
AKAI LEA-32V07P (Panel T315XW06 V.0), BBK LEM3283 V1.0 (Panel LC320EXN SDA1), BBK LEM3283F (Panel V315H3-LE4 Rev.C1), ERISSON 42LEN60 (Panel LC420EUN), ERISSON 32LEN60 (Panel LTA320AN01 D02 ), FUSION FLTV-32H20B (Panel LM315TA-T01), SUPRA STV-LC3217W (Panel LC320WXE-SBV1), SUPRA STV-LC3217AWL STV-LC3217W (Panel HV320WX2-201), SUPRA STV-LC3277W (Panel HV320WX2-201), SUPRA STV-LC32170F (Panel HK315TVM-HHC9H).
Main features of SUPRA STV-LC32170F device:
Installed matrix (LCD panel) HK315TVM-HHC9H.
Matrix control uses Timing Controller (T-CON) 19-100299.
A converter combined with a power supply is used to power the backlight lamps, it is controlled by the SG3525AN PWM controller.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC32170F TV is carried out by the IPB733V4 power module, or its analogs using LD7535 (PWM SOT23-6 KrP35), L6562A (PFC) microcircuits.
MainBoard - the main board (motherboard) is a T.MS18VG.81B module, using MST6M182VG-LF-Z1 microcircuits, SPI Flash: 25Q32BSIG, TPA3110D2, IT6633E-P, AIC2857F and others.
The CDT-3SP5I2-36 tuner provides reception of television programs and tuning to channels.
Information from an alternative source:
SUPRA STV-LC32170F Version V1L11 / Version V1L10 Same chassis for: HELIX HTV323L
Panel type (matrix): HK315TVM-HHC9H / HK315TVM-HHJ7H
Motherboard: T-MS18VG.81B 12145, TDA3110D2, 25D32, SGM330A, IT6633E-P, AIC2857F, Tuner: CDT-3SP512-36
T-con: 19-100299, TCON108-F1, BUF12840, BD81021
PSU & Invertor: IPB733V4, ER3525, L6562A
Remote control: Y-72C
SUPRA LCD TV STV-LC32170F with LCD HK315TVM-HHC9H, 32 "(81 cm) 16: 9. Brightness 450 cd / m² backlit CCFL (EEFL) fluorescent lamps. Dynamic Contrast Ratio 80000: 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. Graphic processing and digital signal formation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported media file formats: MP3, MPEG4, MKV, JPEG.
Speaker power 12 W (2x6 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 x2, component, SCART, RGB, VGA, HDMI x3, USB. 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.
Dimensions: With stand 794x561x204 mm, Without stand 794x499x90 mm.
Attention! The HK315TVM-HHC9H panel of the SUPRA STV-LC32170F LCD TV is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!