Technical description and composition of the TV SUPRA STV-LC2601W, type of panel and applicable modules. The composition of the modules.SUPRA
Model: STV-LC2601W
Chassis / Version: TV3201
Panel: V260B1-L02 REV.C1
T-CON: MSDV2601-ZC09-01-B
Inverter (backlight): integrated into PSU
PWM Inverter: SG3525AN
MOSFET Inverter: 5N50CR
Power Supply (PSU): MIP260B-1
PWM Power: F9222, L656JD, KA3525A
MOSFET Power: 13N50C
MainBoard: TV3201-ZC01-02 (C)
IC MainBoard: CPU: MST9X88LD; SPI Flash: 25X40; EEPROM: 24C32; ; CPU: MST9X88LD; SPI Flash: 25X40; EEPROM: 24C32; SOUND: STA540SA
Tuner: JS-6H2 / 121
STV-LC2601W Specifications
SUPRA STV-LC2601W
General recommendations for TV LCD repair
Repair of the SUPRA TV with the chassis should begin with a careful external inspection of all its components and modules. Many visible changes in the state of elements make it possible to determine the further direction of troubleshooting and localization of the defect. Electrolytic capacitors of filters with a swollen body, as well as ring cracks or a layer of coal on burned-out resistors formed in soldered terminals of heating elements, sometimes tell the repairman the causes of the malfunction and possible consequences.
If the SUPRA STV-LC2601W does not turn on, no control lights on the front panel 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 general, first of all, it is necessary to check the electrolytic capacitors of the filters of the secondary rectifiers and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. Options are possible.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself for no reason that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If SUPRA STV-LC2601W does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction of the display backlight lamps, or their power converter - inverter. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the inverter itself, including in the secondary rectifier of the main PSU.
Often attempts to repair the inverter are hampered by the fact that the diagnosis of a malfunction is complicated by the work of its protection, which is designed to turn off the inverter in emergency modes - when lamps are depressurized, breaks or short circuits in high-voltage connections and other emergency situations. Blocking protection for localizing a defect is popular among repairmen.
The motherboard should be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuits are working, it may be necessary to update the software. Repair of the board and replacement of MP1591, STA540SA, MST9X88LD, FSAV330, DF3544, AOZ1014, AP1084, ZR3913X microcircuits are performed if the necessary equipment and the corresponding element base are available. Malfunctions associated with the use of BGA soldering technologies can be localized by warming up.
Remember! Attempts to self-repair the SUPRA STV-LC2601W TV by users without appropriate qualifications and the necessary experience can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> STV-LC2601W 3201W 3701W STV-LC2601W 3201W 3701W ------------------> Sсhematic diagram TV3201
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC2601W MAIN TV3201-ZC01-02(C), Panel V260B1-LC02 REV.C1
The appearance of the MainBoard TV3201-ZC01-02 is shown in the figure below:TV3201-ZC01-02
TV3201-ZC01-02 can be used in TVs:
SUPRA STV-LC2601W (Panel V260B1-L02 REV.C1), SUPRA STV-LC2602WD (Panel 26 "), SUPRA STV-LC3201W (Panel V315B1-L01), SUPRA STV-LC3202W (Panel V315B1-L01).
External view of the power supply
Main features of SUPRA STV-LC2601W device:
Installed matrix (LCD panel) V260B1-L02 REV.C1.
The matrix control uses the Timing Controller (T-CON) MSDV2601-ZC09-01-B.
A converter combined with a power supply is used to power the backlight lamps, it is controlled by the SG3525AN PWM controller. The keys of the 5N50CR type are used as power elements of the inverter.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC2601W TV is carried out by the MIP260B-1 power module, or its analogs using F9222, L656JD, KA3525A microcircuits and 13N50C type power switches.
MainBoard - the main board (motherboard) is a TV3201-ZC01-02 module, using CPU chips: MST9X88LD; SPI Flash: 25X40; EEPROM: 24C32; ; CPU: MST9X88LD; SPI Flash: 25X40; EEPROM: 24C32; SOUND: STA540SA and others.
The JS-6H2 / 121 tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CMO
Model: V260B1-L02
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 575.769x323.712 mm
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.2M (6-bit + FRC), CIE1931 72%
Response Time: 3/5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: RSDS (1 Channel), 45 pins
Voltage: 5.3.3 / 5.0V (VDD / VIN5)
SUPRA STV-LC2601W LCD TV with V260B1-L02 LCD, 26 "(66 cm) diagonal size in 16: 9 format. 500 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Contrast - maximum brightness ratio to a minimum of 800: 1. You can view broadcasts and movies and images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and generation digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i.
Speaker power 16 W (2x8 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, S-Video, SCART x2, RGB, VGA. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768. The digital tuner is capable of receiving TV channels in DVB-T standards.
Dimensions: With stand 667x526x107 mm, Without stand 816x580x107 mm.
TV weight: 13.1 kg.
Attention! SUPRA STV-LC2601W LCD TV panel V260B1-L02 REV.C1 is the most expensive component.
Avoid hitting the glass and pressing on the screen surface to avoid irreversible damage to the LCD panel!