Technical description and composition of the SUPRA STV-LC40ST660FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC40ST660FL
Chassis / Version: 5800-A6M88G-0P00
Panel: V400HJ6-PE1
LED backlight: SEL400FY (QD0-300) -X4
LED driver (backlight): integrated into PSU
PWM LED driver: OZ9967GN
MOSFET LED driver: ME15N10-G
Power Supply (PSU): 168P-L3L025-W0
PWM Power: TEA1733
MainBoard: 5800-A6M88G-0P00 VER00.01
IC MainBoard: NAND: TC58NVG1S3HTA00, EEPROM: K24C64
Tuner: NoName
STV-LC40ST660FL Specifications
SUPRA STV-LC40ST660FL
General recommendations for TV LCD LED repair
Possible malfunctions
- SUPRA STV-LC40ST660FL does not turn on, indicators on the front panel do not light or flash. The TV does not respond to control buttons and the remote control.
In such cases, you should start looking for a fault in the 168P-L3L025-W0 power supply circuits. Its output voltages should be measured and, in their absence, the power switches and rectifier diodes should be checked for the probability of a short circuit in the converters.
In case of breakdowns in the secondary circuits, the converter, as a rule, can operate in an emergency in the short-circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse is usually cut off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers TEA1733, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- There is no picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and disappears immediately
The malfunction in most of these cases is found in the nodes and elements of the LED panel backlighting. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It should be remembered that it is not possible to determine an open circuit in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then you need to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction, or dual LEds are used, then the PN transition of the emergency zener diode can indirectly serve as an indicator of serviceability. In the event of a malfunction of the LED-a, the PN-transition of the zener diode will either be cut off, or broken through in the SC.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
Repair or diagnostics of the 5800-A6M88G-0P00 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, you must check the serviceability of its elements - NAND: TC58NVG1S3HTA00, EEPROM: K24C64. Defective components must be replaced.
If there is no tuning to channels of terrestrial or cable television, you should make sure that the software is correct, as well as in accordance with the nominal supply voltages at the NoName tuner terminals. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.
Users and owners of TVs should remember that attempts to self-repair a SUPRA STV-LC40ST660FL TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> 168P-L3L025-W0 Power supply
The appearance of MainBoard 5800-A6M88G-0P00 is shown in the figure below:5800-A6M88G-0P00
5800-A6M88G-0P00 can be used in TVs:
AIWA 32LE6020 (Panel SEL320HY (CD0-701)(05)), AIWA 40LE6120 (Panel SEL400FY(QD0-701)(05)), ERISSON 40LES68 (Panel 1080p Full HD 1920x1080), TELEFUNKEN LED40S13T2 (Panel SEL400FY (QD0-701)(02)).
External view of the power supply
Main features of SUPRA STV-LC40ST660FL device:
Installed matrix (LED panel) V400HJ6-PE1.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by an OZ9967GN PWM controller. The keys of the ME15N10-G type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC40ST660FL TV is carried out by the 168P-L3L025-W0 power module, or its analogs using TEA1733 microcircuits.
MainBoard - the main board (motherboard) is a 5800-A6M88G-0P00 module, using NAND chips: TC58NVG1S3HTA00, EEPROM: K24C64 and others.
Tuner NoName provides reception of television programs and tuning to channels.
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-LC40ST660FL with LCD V400HJ6-PE1, diagonal 40 "(102 cm) 16: 9 format. The required screen brightness of 380 cd / m² is provided by LED backlighting. 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 films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution in the standard 1080p (Full HD ).
STV-LC40ST660FL TV is equipped with SMART software, built-in applications and the ability to work on the Internet. 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.
An external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), audio x2, VGA, HDMI x3, MHL, USB x2, 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. The digital tuner is capable of receiving TV channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: 976x624x137 mm.
Attention! SUPRA STV-LC40ST660FL 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.