Technical description and composition of the MYSTERY MTV-1623LW TV, type of panel and applicable modules. The composition of the modules.MYSTERY LED
Model: MTV-1623LW
Chassis / Version: 40-MS82VG-MAE2LG
Panel: N156BGE-L21
T-CON: N156BG-L0A
LED driver (backlight): integrated into T-CON
Power Supply (PSU): Adapter 12V
MainBoard: 40-MS82VG-MAE2LG
IC MainBoard: SPI Flash: 25Q32FV;
Tuner: 07-380FI5-NFHG
Technical Specifications MTV-1623LW
MYSTERY MTV-1623LW
General repair guidelines for TV LCD LED
TV MYSTERY MTV-1623LW, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. Often, by the visible signs of a change in the state of some elements, one can judge the causes of the defect. 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.
If the power supply module malfunctions, the external manifestations may be different, for example, the MYSTERY MTV-1623LW does not turn on at all and there is no indication of the indicator lights on the front panel. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should begin by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
The reasons for the breakdown of the power switch in switching power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
Sometimes the MYSTERY MTV-1623LW 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 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 operability of the electrolytic capacitors of the filter by supplying the LED driver itself, including the PSU.
In case of breaks in the LED circuit, a complete disassembly of the panel is required, the LEDs are checked for an open circuit, as well as the reliability of the connections in the connectors and rations of the terminals.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software).
If it is not possible to replace the MB board (SSB), you need to check the health of its elements - SPI Flash: 25Q32FV; . Defective components should be replaced.
Before replacing the 07-380FI5-NFHG tuner, if there is no tuning for the channels, you must first check the software and the supply voltage at its terminals.
Owners and users of the MYSTERY MTV-1623LW TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-1623LW, Main: 40-MS82VG-MAE2LG, Panel: N156BGE-L21
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 MYSTERY MTV-1623LW device:
Installed matrix (LED-panel) N156BGE-L21.
The matrix control uses the Timing Controller (T-CON) N156BG-L0A.
An integrated LED driver is used to power the backlight LEDs.
To power all the internal components of the MYSTERY MTV-1623LW TV, an external adapter 12V type source is used.
MainBoard - the main board (motherboard) is a 40-MS82VG-MAE2LG module, using SPI Flash chips: 25Q32FV; and others.
The tuner 07-380FI5-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
MYSTERY MTV-1623LW TV with N156BGE-L21 LCD, 16 "(41 cm) diagonal size of 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. Edge LED backlighting is realized in the LED-panel of this TV - Edge LED. You can view 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 can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p. Supported media file formats: MP3, 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, audio x2, component, SCART, 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: With stand 642x444x209 mm, Without stand 642x398x44 mm.
Attention! The N156BGE-L21 panel of the MYSTERY MTV-1623LW LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the screen surface 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.