Technical description and composition of the MYSTERY MTV-1605W TV, type of panel and applicable modules. The composition of the modules.MYSTERY
Model: MTV-1605W
Chassis / Version: T.VST26.3B
Panel: HT156WX1-100
MainBoard: T.VST26.3B
IC MainBoard: SPI Flash: 25Q80BVS1G;
Tuner: TDQ-ATF27WT-F
Technical Specifications MTV-1605W
MYSTERY MTV-1605W
General recommendations for repairing TV LCD
Repair of TVs, as well as other devices, it is advisable to start with an external examination. In some cases, visible external damage to the elements can suggest the direction of troubleshooting and localization of the defect even before the start of the necessary measurements at the control points of the nodes of electronic circuits. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external signs of certain malfunctions.
If the MTV-1605W TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power module. In some cases, there may be a malfunction only in standby power. When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
A breakdown of the power switch of the pulse converter is often triggered by other elements, for example, in the stabilization or control circuits of this switch, as well as by the damper elements in its drain and TPI winding.
If the MYSTERY MTV-1605W does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working. All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
The motherboard T.VST26.3B is subject to verification if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary. In some cases, they require verification or replacement (if necessary) of the MainBoard - SPI Flash board elements: 25Q80BVS1G; . In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
If there is no reception of television channels, but the TV is working properly from external devices, first of all it is necessary to check the voltage of the tuner TDQ-ATF27WT-F and update the software.
Attention! Users and owners of MTV-1605W TVs who do not have the appropriate qualifications, knowledge and experience are strongly advised against self-repair attempts in order to avoid negative consequences that could lead to complete non-repairability of the device.
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Main T.VST26.3B
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-1605W, Main: T.VST26.3B, Panel: HT156WX1-100
The appearance of the MainBoard is shown in the figure below:T.VST26.3B
T.VST26.3B can be used on TVs:
HYUNDAI H-LCDVD2200 (Panel LTM220MT05 010), HYUNDAI H-LCD2216 (Panel M216H1-L01), IZUMI TL15H603B (Panel LTA150XH-L06), IZUMI TL15H605B (Panel LTM150XH-L06), MYSTERY MTV-2225WD (Panel V216B1-L04 REV.C1), MYSTERY MTV-2205W (Panel V216B1-L01), MYSTERY MTV-1605W (Panel HT156WX1-100).
Main features of the MYSTERY MTV-1605W device:
Installed matrix (LCD panel) HT156WX1-100.
The required supply voltage for all nodes of the TV MYSTERY MTV-1605W provides a switching power supply.
MainBoard - the main board (motherboard) is a T.VST26.3B module using SPI Flash chips: 25Q80BVS1G; and others.
The TDQ-ATF27WT-F tuner provides TV reception and channel tuning.
MYSTERY MTV-1605W TV with HT156WX1-100 LCD display, 16 "(41 cm) diagonal size in 16: 9 format. 250 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Contrast as the ratio of maximum brightness to the minimum is 500: 1. Dynamic contrast ratio of 2000: 1 is provided by special control of the backlight operation depending on the illumination of sections in the plot. ideosignal may be processed in analog systems, PAL, SECAM, NTSC. Graphic processing and formation takes place in the digital signal standards 480i, 576i.
The power of the acoustic system of sound 6 W (2x3 W) provide 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, S-Video, SCART, VGA. 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.
The power consumed by the TV in the operating mode from the network is 48 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The HT156WX1-100 panel of the MYSTERY MTV-1605W LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!