Technical description and composition of the MYSTERY MTV-2417WHD TV, panel type and applicable modules. The composition of the modules.MYSTERY
Model: MTV-2417WHD
Chassis / Version: V1J05
Panel: M236MWF1
MainBoard: MSTV2203-ZC01-01
IC MainBoard: CPU: TSUMV26KE-LF; FLASH: KH25L4005, EEPROM 24C32. DVD: DV1106-ZC01-01 CPU /; ZR36968PQCG, FLASH: EN25F80, Pick: SF-HD850
Tuner: F21WT-3BAR-E
Control: Service Login: INPUT 2580
Appearance
MYSTERY MTV-2417WHD
General recommendations for repairing TV LCD
MYSTERY with the V1J05 chassis, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. Visible damage to the elements can sometimes indicate the direction of the search for the defect even before the necessary measurements. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
If the MTV-2417WHD TV does not turn on, does not make any sounds when it is turned on, and also no indicators light up or blink on the front panel, there is a high probability of a malfunction in the power module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some MYSTERY models. 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 bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
If, when you turn on the TV, the image appears and immediately disappears, or is initially absent when you turn on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (power converter for the backlight). In such cases, the lamps, the inverter and the common power module are subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the inverter should be checked. Turning off the protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all regular protection circuits should be restored.
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 (SSB) card, you need to check the health of its elements - FLASH: KH25L4005, EEPROM 24C32. DVD: DV1106-ZC01-01 CPU /; ZR36968PQCG, FLASH: EN25F80, Pick: SF-HD850. Defective components should be replaced.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> MYSTERY MSTV2203-N1
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-2417WHD V1J05, MAIN MSTV2203-ZC01-01, PANEL M236MWF1
The appearance and voltage measurements at the control points of MainBoard MSTV2203-ZC01-01 are shown in the figure below:MSTV2203-ZC01-01
MSTV2203-ZC01-01 can be used in TVs:
BBK LT1929S (Panel F21WT-3BAR-E), BBK LT1529S (Panel M156MWR1), MYSTERY MTV-2206W (Panel CLAA216WA01), MYSTERY MTV-1906W (Panel M190MWW3), MYSTERY MTV-1607w (Panel M156MWR1), MYSTERY MTV-1907W (Panel BOE HT185WX2-10), MYSTERY MTV-2417WHD (Panel M236MWF1), MYSTERY MTV-2407WH (Panel V236H1-L05 Rev:C1), MYSTERY MTV-2217WD (Panel CLAA215FA05), MYSTERY MTV-1917WD (Panel CLAA185WA06).
Main features of the MYSTERY MTV-2417WHD device:
The matrix (LCD panel) M236MWF1 is installed.
The required supply voltage for all nodes of the TV MYSTERY MTV-2417WHD provides a switching power supply.
MainBoard - the main board (motherboard) is an MSTV2203-ZC01-01 module, using CPU chips: TSUMV26KE-LF; FLASH: KH25L4005, EEPROM 24C32. DVD: DV1106-ZC01-01 CPU /; ZR36968PQCG, FLASH: EN25F80, Pick: SF-HD850 and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: IVO
Model: M236MWF1 R0
Type: a-Si TFT-LCD, Panel
Diagonal size: 23.6 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 521.28x293.22 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 5 (Tr + Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V