Technical description and composition of the ERISSON 32LES16 TV, type of panel and applicable modules. The composition of the modules.ERISSON LED
Model: 32LES16
Chassis / Version: TP.VST59S.PB755
Panel: VVH32L147G22LTY
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MainBoard: TP.VST59S.PB755
IC MainBoard: CPU: TSUMV59XES-Z1, SPI Flash: GD25Q32
Tuner: XF-3SDT-H (R840)
Specifications 32LES16
ERISSON 32LES16
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The ERISSON 32LES16 TV does not turn on, does not respond to the remote control and the control panel buttons, does not light up or blink indicators.
In this case, first of all, it is necessary to check the operability of the main power source - the AC / DC network voltage converter, all of whose elements are located on the MainBoard TP.VST59S.PB755 board. Then it is necessary to measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of power switches and rectifier diodes of the converters for a possible short circuit.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
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 SOT23-6 PWM chips are usually checked by replacing with new ones, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In such cases, the most likely malfunction of the LED backlight elements. 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 LED line for breaks 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, as a rule, light up a single 3-volt 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 a health indicator. In faulty LEDs, the 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 TP.VST59S.PB755 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). When repairing an MB board, you need to check its CPU components: TSUMV59XES-Z1, SPI Flash: GD25Q32. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If there is no reception of television channels, but the TV is working properly from external devices, first of all you need to check the voltage of the tuner XF-3SDT-H (R840) and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
Owners and users of the ERISSON 32LES16 TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> ERISSON 32LES16, Main: TP.VST59S.PB755, Panel: VVH32L147G22LTY
The appearance of MainBoard TP.VST59S.PB755 is shown in the figure below:TP.VST59S.PB755
TP.VST59S.PB755 can be used in TVs:
DEXP H32B3100M (Panel V320BJ7-PE1), ERISSON 32LES16 (Panel VVH32L147G22LTY).
Main features of the ERISSON 32LES16 device:
Installed matrix (LED-panel) VVH32L147G22LTY.
To power the backlight LEDs, a converter is used, combined with the main board TP.VST59S.PB755.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using PWM SOT23-6 microcircuits.
MainBoard - the main board (motherboard) is a module TP.VST59S.PB755, using CPU chips: TSUMV59XES-Z1, SPI Flash: GD25Q32 and others.
Tuner XF-3SDT-H (R840) provides the reception of television programs and tuning to channels.
Trademark: ERISSON, Model: 32LES16.
Shortly from the TV: LCD, 720p HD, 32 "(81 cm) diagonal, HDMI: 2, USB: 2, backlight type: Edge LED.
The composition uses MainBoard TP.VST59S.PB755 and the LCD panel (matrix) VVH32L147G22LTY. The power supply is combined with the MainBoard.
Technical description
ERISSON 32LES16 TV with VVH32L147G22LTY LCD, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1400: 1. The LED panel of this TV has an end LED backlight - Edge LED. You can view images in high quality HD with a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). Supported media file formats: MP3, MPEG4, Xvid, DivX, MKV , JPEG.
The power of the speaker system of sound 14 W (2x7 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, component, VGA, HDMI x2, USB x2. An output for connecting headphones is provided.
Overall dimensions: With stand 730x526x179 mm, Without stand 730x434x70 mm.
Attention! The VVH32L147G22LTY panel of an ERISSON 32LES16 LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen 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.