Technical description and composition of the MYSTERY MTV-2210LW TV, type of panel and applicable modules. The composition of the modules.MYSTERY LED
Model: MTV-2210LW
Chassis / Version: LS07 V1J07
Panel: CLAA215FA04
LED backlight: 93C Down
PWM LED driver: A8504
Power Supply (PSU): Adapter 12V
MainBoard: JUG7.820.807
IC MainBoard: TSUMV26KU-LF, F40-100GCP EN25F40, 24LC32B, YD517P
Tuner: CDT-3FC212-00
Control: IR: JUG7.820.796-1
Technical Specifications MTV-2210LW
MYSTERY MTV-2210LW
General repair guidelines for TV LCD LED
Possible malfunctions
- The MYSTERY MTV-2210LW TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
With such manifestations, in some cases, the Adapter power module is faulty.
The external adapter 12V power supply is not always subject to repair, especially since the owner can purchase it independently. But, in some cases, it makes sense to open it and eliminate the simple typical defects inherent in converters in pulsed sources. It is necessary to measure its output voltages, and in case of their absence (full or partial), it is necessary to check the serviceability of the power switches of the converters and rectifier diodes for the presence of a possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short-circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key are most often cut off.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits are usually checked by replacement with new ones, or obviously working.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
In most of these cases, a malfunction is detected in the nodes and backlight elements of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V for them. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the JUG7.820.807 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace 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 the elements TSUMV26KU-LF, F40-100GCP EN25F40, 24LC32B, YD517P. BGA chip malfunctions are usually easy to detect by warming up.
If the TV works normally from external devices, but does not tune into television channels, the tuner CDT-3FC212-00 may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. You also need to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Once again, remind users! Attempts to self-repair a TV MYSTERY MTV-2210LW without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-2210LW LS07 V1J07 , Main: JUG7.820.807, Panel: CLAA215FA04
The appearance of the MainBoard JUG7.820.807 is shown in the figure below:JUG7.820.807
JUG7.820.807 can be used on TVs:
MYSTERY MTV-1910LW (Panel V236H1-LE2), MYSTERY MTV-2410LW (Panel V236H1-LE2 Rev.C1), MYSTERY MTV-2210LW (Panel CLAA215FA04).
Main features of the MYSTERY MTV-2210LW device:
Installed matrix (LED-panel) CLAA215FA04.
A converter controlled by the A8504 PWM controller is used to power the backlight LEDs.
To power all the internal components of the MYSTERY MTV-2210LW TV, an external adapter 12V type source is used.
MainBoard - the main board (motherboard) is a JUG7.820.807 module, using TSUMV26KU-LF, F40-100GCP EN25F40, 24LC32B, YD517P, and others microcircuits.
The tuner CDT-3FC212-00 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CPT
Model: CLAA215FA04 V4
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 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: 16S4P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
MYSTERY MTV-2210LW TV with CLAA215FA04 LCD display, diagonal size 22 "(55 cm) 16: 9 format. The required brightness of the screen is 250 cd / m² LED backlight LED. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. The LED screen technology is implemented in the manufacturing technology of the screen of this TV model.The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD). The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC .. Graphic processing and digital signal generation takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
The power of the sound system 4 W (2x2 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 x3, component, VGA, HDMI. An output for connecting headphones is provided. 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.
The power consumed by the TV in the operating mode from the network is 35 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The CLAA215FA04 panel of the MYSTERY MTV-2210LW 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.
