Technical description and composition of the POLARLINE 32PL13TC TV, panel type and modules used. The composition of the modules.POLARLINE LED
Model: 32PL13TC
Chassis / Version: TP.MS3663S.PB818
Panel: V320BJ8-Q01
LED backlight: CY 2 * 6_3030_300MA_36V 261501005560
T-CON: 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 25Q64
Tuner: NoName
Specifications 32PL13TC-SM
POLARLINE 32PL13TC
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- The POLARLINE 32PL13TC TV does not turn on, does not respond to the remote control and control panel buttons, does not light or blink indicators.
In this case, the main power source, the AC / DC voltage converter, may be faulty, the elements of which in this model are located on the main board MainBoard TP.MS3663S.PB818. It is necessary to make sure that its output voltages are present and, if they are completely absent, check the power switches (TO-252) and rectifier diodes for a possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often breaks off immediately and less often the current sensor in the source of the key.
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, but there is sound, it reacts to the remote control. Or the image appears when turned on and disappears immediately
As a rule, in this case, the backlight of the LED panel is faulty. Often the cause of a malfunction is the lack of current in the LED circuit, for example, their open or short circuit, or a violation of the contact connections of the connectors.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and a voltage of several tens of volts is required to open their junctions. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Usually, Chinese multimeters lightly light up one 3-volt LED if you connect the probes to it in the forward direction (red probe to the anode, black to the cathode). For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or broken into the K / Z.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
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). In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - CPU: MSD3663LSA-SW, SPI Flash 25Q64 which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its pins with the board (indicated by warming up).
A malfunction of the NoName tuner is established after checking the software and all supply voltages at its outputs. The I2C bus data exchange between the tuner and the processor can be monitored with an oscilloscope.
Users and owners of TVs need to remember that attempts to repair the POLARLINE 32PL13TC TV on their own without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
The appearance of MainBoard TP.MS3663S.PB818 is shown in the figure below:TP.MS3663S.PB818
The main features of the POLARLINE 32PL13TC device:
Installed matrix (LED panel) V320BJ8-Q01.
Matrix control uses Timing Controller (T-CON) V320BJ8-Q01.
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 25Q64 and others.
Tuner NoName provides reception of television programs and tuning to channels.
POLARLINE 32PL13TC-SM TV with LCD V320BJ8-Q01, 32 "(81 cm) diagonal 16: 9 format. The LCD panel of the TV is equipped with direct backlighting with rear LEDs - Direct LED.
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).
32PL13TC-SM TV has built-in SMART software and pre-installed Android Operating System. Internet connection can be made via Wi-Fi wireless connection. Supported media file formats: MP3, MPEG4, HEVC (H.265), Xvid, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. Uses NICAM stereo signal processing system and Sound Surround function.
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, Ethernet (RJ-45), Wi-Fi 802.11n. 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 730x465x177 mm, without stand 730x440x85 mm.
TV weight: 4.2 kg.
Attention! The V320BJ8-Q01 panel of the POLARLINE 32PL13TC-SM LED TV 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.