Technical description and composition of the TV AIWA 32LE7011, type of panel and applicable modules. The composition of the modules.AIWA LED
Model: 32LE7011
Chassis / Version: V1M07 - V1M12
Panel: REL320HY (LD0-000) Rev: 00
T-CON: LC320EXN-SEA1-k31 / 6870C-0414A P / N: 6870C-0414A
LED driver (backlight): 5800-P32DXM-W000
PWM LED driver: OZ9967GN, TAS5707
Power Supply (PSU): 168P-P39EWL
PWM Power: TEA1733
MOSFET Power: 2SK3673
MainBoard: 5800-A8M51B-0000 Ver00.07
IC MainBoard: CPU: MSD6329SV, Eeprom: K24C04, SPI Flash: 25L1606E (MX25L1605A), NAND Flash: TC58NVG1S3ETA00
Tuner: TDST-G070G
Specifications 32LE7011
AIWA 32LE7011
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The AIWA 32LE7011 TV does not turn on, does not respond to the remote control and buttons on the control panel, does not light up or blink indicators.
With similar manifestations, in some cases, the 168P-P39EWL power module is faulty. It is necessary to measure its output voltages, and if they are absent, check the operability of the power switches (2SK3673) of the converters and rectifier diodes for a short circuit probability.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) TEA1733, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED strips, to open all the transitions of the LEDs, several tens of volts or more are needed, it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED transitions in forward bias, sometimes you can detect the presence of a PN junction of the protective zener diode by connecting the probes in the opposite direction. If the zener diode is broken or broken in short-circuit, then the LED is faulty and needs to be replaced.
- 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 5800-A8M51B-0000 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). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: MSD6329SV, Eeprom: K24C04, SPI Flash: 25L1606E (MX25L1605A), NAND Flash: TC58NVG1S3ETA00 and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by 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 it is necessary to check the voltage of the TDST-G070G tuner and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
It should be remembered! Attempts to independently repair the TV AIWA 32LE7011, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> AIWA 32LE7011 V1M07 (V1M12), Main: 5800-A8M51B-0000 Ver00.07, Panel: REL320HY
The appearance of the MainBoard 5800-A8M51B-0000 is shown in the figure below:5800-A8M51B-0000
5800-A8M51B-0000 can be used in TVs:
AIWA 47LE71113 (Panel LC470EUJ-SFK2 (SEL470FY)), AIWA 32LE7011 (Panel REL320HY (LD0-000) Rev:00).
The appearance of the power supply
Key Features of AIWA 32LE7011:
Installed matrix (LED-panel) REL320HY (LD0-000) Rev: 00.
The matrix control uses the Timing Controller (T-CON) LC320EXN-SEA1-k31.
The LED driver 5800-P32DXM-W000 is used to power the backlight LEDs, it is controlled by the OZ9967GN, TAS5707 PWM controller.
The necessary supply voltages for all nodes of the TV AIWA 32LE7011 are generated by the power supply module 168P-P39EWL, or its analogs using TEA1733 microchips and power switches of the 2SK3673 type.
MainBoard - the main board (motherboard) is a 5800-A8M51B-0000 module, using CPU chips: MSD6329SV, Eeprom: K24C04, SPI Flash: 25L1606E (MX25L1605A), NAND Flash: TC58NVG1S3ETA00 and others.
The TDST-G070G tuner provides television reception and channel tuning.
Trademark: AIWA, Model: 32LE7011.
Briefly from the TV: LCD, LED backlight, 32 ", 1366x768, 720p HD, sound: 20W, HDMI: 4.
The composition includes MainBoard 5800-A8M51B-0000 Ver00.07 and LCD panel (matrix) REL320HY (LD0-000) Rev: 00.
Power Supply Unit (PSU) 168P-P39EWL Power Supply.
AIWA 32LE7011 TV with REL320HY LCD, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 350 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 80000: 1 is achieved by special control of the LEDs. In this model uses side lighting from Edge LEDs.
The REL320HY panel (LD0-000) Rev: 00 and the motherboard software 5800-A8M51B-0000 provide high-definition image viewing at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i.
Supported media file formats: MP3, JPEG.
The power of the acoustic system of sound 20 W (2x10 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 x4, USB x2. 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, 1360x768.
Overall dimensions: with stand 732x486x220 mm, without stand 732x455x61 mm.
TV mass: with stand: 9 kg, without stand: 8.2 kg.
Attention! The REL320HY panel (LD0-000) Rev: 00 of the AIWA 32LE7011 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.