Technical description and composition of the TV SUPRA STV-LC16850WL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC16850WL
Chassis / Version: V8-MS82BEL
Panel: N156BGE-L21 REV.C1
T-CON: N156BG-L0A
LED driver (backlight): integrated into T-CON
MainBoard: 40-MS82VG-MAE2LG (2013-4-2) MS82C (V8-MS82BEL)
IC MainBoard: Flash 25Q32
Tuner: 07-380F15-NFHG
Technical Specifications STV-LC16850WL
SUPRA STV-LC16850WL
General repair guidelines for TV LCD LED
An external examination of the external and internal elements should be carried out in a timely manner prior to the start of dismantling operations. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and decide on the direction of further troubleshooting even before the necessary measurements are taken. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
Malfunctions of the power module can be expressed in different ways, for example, SUPRA STV-LC16850WL does not turn on at all and the control lamps on its front panel do not light up and do not blink, there are no signs of operability. It should be noted that with the same external manifestations, the stabilizer (converter) of the processor power may turn out to be faulty. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the rectifier bridge of the mains voltage and the power switch (s) of the converter.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the binding of the PWM controller microcircuit are subject to verification, which it is desirable to verify by replacement.
Sometimes the SUPRA STV-LC16850WL TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the N156BGE-L21 REV.C1 panel backlight LED converter, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of contact connections in the rulers and connectors.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source.
Repair or diagnostics of the V8-MS82BEL motherboard should begin by checking the stabilizers or power converters of its microcircuits. If necessary, update the software (software).
Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace Flash 25Q32 elements. BGA chip malfunctions are usually easy to detect by warming up.
Tuner malfunction 07-380F15-NFHG is installed after checking the software and all supply voltages at its terminals.
It should be remembered! Attempts to repair the TV SUPRA STV-LC16850WL, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC16850WL, Main: V8-MS82BEL, Panel: N156BGE-L21 REV.C1
The appearance of the MainBoard 40-MS82VG-MAE2LG is shown in the figure below:40-MS82VG-MAE2LG
40-MS82VG-MAE2LG can be used in TVs:
HYUNDAI H-LED32V8 (Panel T315XW06 V.8), HYUNDAI H-LED19V8 (Panel M185XW01), MYSTERY MTV-1623LW (Panel N156BGE-L21), SUPRA STV-LC16850WL (Panel N156BGE-L21 REV.C1), THOMSON 32D12 (Panel DTW0315CK06-D).
Main features of the SUPRA STV-LC16850WL device:
Installed matrix (LED-panel) N156BGE-L21 REV.C1.
The matrix control uses the Timing Controller (T-CON) N156BG-L0A.
An integrated LED driver is used to power the backlight LEDs.
The required supply voltage for all nodes of the TV SUPRA STV-LC16850WL provides a switching power supply.
MainBoard - the main board (motherboard) is a 40-MS82VG-MAE2LG module, using Flash 25Q32 chips and others.
The tuner 07-380F15-NFHG provides television reception and channel tuning.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: N156BGE-L21 61 Compatible model
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.6 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 344.232x193.536 mm
Shape Style: Wedge (PCBA Bent, Depth? 5.2mm)
Surface: Glare (Haze 0%), Hard coating (3H)
Brightness: 220 cd / m²
Contrast Ratio: 650: 1
Display Colors: 262K (6-bit), CIE1931 60%
Response Time: 3/8 (Tr / Td)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 6-bit), 40 pins
Voltage: 3.3V
LED TV SUPRA STV-LC16850WL with LCD N156BGE-L21, diagonal size 16 "(41 cm) 16: 9 format. The required brightness of the screen 250 cd / m² is provided by LED backlight LED. Dynamic contrast ratio of 50,000: 1 is achieved by special control LEDs work depending on the illuminated areas in the plot.In this model, an LED panel with the end position of the backlight LEDs is used - Edge LED. The input high-frequency or video signal is decoded in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p. Supported media file formats: MP3, MKV, JPEG.
The power of the sound system 10 W (2x5 W) provides two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, component, VGA, HDMI, USB. 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, 1360x768.
Overall dimensions: 480x338x88 mm.
The mass of the TV: 2.2 kg.
Attention! The N156BGE-L21 REV.C1 panel of a SUPRA STV-LC16850WL LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.
