Technical description and composition of the ASANO 32LH1010T TV, panel type and modules used. The composition of the modules.ASANO LED
Model: 32LH1010T
Chassis / Version: TP.MS3663S.PB818
Panel: V320BJ8-Q01 REV.C1
LED driver (backlight): integrated into MainBoard
PWM LED driver: SO-8
MOSFET LED driver: TO-252
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MOSFET Power: TO-252
MainBoard: TP.MS3663S.PB818
IC MainBoard: CPU: MSD3663LSA-SW, SPI Flash: W25Q64B
Tuner: XF-3SDT-H
Specifications 32LH1010T
ASANO 32LH1010T
General recommendations for TV LCD LED repair
Possible manifestations of defects
- TV ASANO 32LH1010T does not turn on and does not show any signs of turning on, does not respond to control buttons and to the remote control.
In such cases, the AC / DC converter of the mains voltage, which is combined with the main board TP.MS3663S.PB818, is often faulty. It is necessary to measure its output supply voltages, and in their absence, check the serviceability of the power switches (TO-252) of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In the event of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor in the source of the key usually breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) PWM SOT23-6, in the absence of external damage and a short circuit between the terminals, are checked by replacing them with a known good one.
- There is no picture, there is sound, all other TV functions are working. When turned on, the image may sometimes appear for a second.
In such cases, the most likely malfunction of the LED panel backlighting elements. The reason may be in the breakage of the LEDs, in the stabilization of their power supply, or in the violation of the contact connections of the strings connectors,
It is impossible to check the LED bars for a break 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. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light a single 3V LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off or broken through in the K / Z.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the TP.MS3663S.PB818 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Often the MB (SSB) board needs to be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: MSD3663LSA-SW, SPI Flash: W25Q64B and replace the failed chips with new ones. Some malfunctions may be associated with the use of BGA soldering technologies in modern Main Board. Typically, such defects are detected by local heating of the chip.
If you suspect a malfunction of the XF-3SDT-H tuner, first of all, you need to make sure that the software is correct, as well as the presence of the necessary levels of supply voltages and pulses of data exchange with the processor via the I2C bus at the corresponding terminals of the tuner.
Owners of the 32LH1010T TV are advised to contact only qualified specialists with the necessary work experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!
The appearance of MainBoard TP.MS3663S.PB818 is shown in the figure below:TP.MS3663S.PB818
The main features of the ASANO 32LH1010T device:
Installed matrix (LED-panel) V320BJ8-Q01 REV.C1.
To power the backlight LEDs, a converter combined with the main board TP.MS3663S.PB818 is used, controlled by the SO-8 PWM controller. TO-252 switches are used as power elements of the LED driver.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using PWM SOT23-6 microcircuits and TO-252 power switches.
MainBoard - the main board (motherboard) is a TP.MS3663S.PB818 module, using CPU chips: MSD3663LSA-SW, SPI Flash: W25Q64B and others.
Tuner XF-3SDT-H provides reception of television programs and tuning to channels.
ASANO 32LH1010T TV with LCD V320BJ8-Q01, diagonal size 31.5 "(80 cm) 16: 9. The required screen brightness of 250 cd / m2 is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 5000: 1. The technology of manufacturing the screen of this TV model is realized with LED backlighting.
There is a convenient function for recording TV programs on a USB-drive with subsequent viewing at another time (TimeShift).
You can view images in high quality HD at a resolution of 1366x768 pixels in 720p (HD Ready). Supported media file formats: MP3, MKV, JPEG.
Speaker power 14 W (2x7 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI 1.4 x3, USB x2. A headphone output is provided.
The digital tuner is capable of receiving TV channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Dimensions: with stand 730x465x209 mm, without stand 730x430x86 mm.
TV weight: with stand: 4.05 kg, without stand: 4 kg.
Attention! Panel V320BJ8-Q01 REV.C1 of LED TV ASANO 32LH1010T is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV non-repairable.
