Technical description and composition of the ELENBERG E32Q868A TV, panel type and applicable modules. The composition of the modules.ELENBERG LED
Model: E32Q868A
Chassis / Version: JUG7.820.1277
Panel: ECG320BB LCK (SP1) // ECG290MA-LZ1
T-CON: V290BJ1-XC01; CM1801B, CM501, CM601, P2003EV6
LED driver (backlight): with integrated PSU
Power Supply (PSU): AY075D-4HF02
PWM Power: PWM SOT23-6 (LD7536R - xxP36R58)
MOSFET Power: K6A60D
MainBoard: JUG7.820.1277
IC MainBoard: EN25P32, TPA3110D2 ...
Tuner: TUNER DWE-7053DW-PLL3
Technical Specifications E32Q868A
ELENBERG E32Q868A
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular ELENBERG E32Q868A, it is advisable to start with a careful external examination of internal and external elements. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when turned on, there is a certain probability that the power module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain ELENBERG models. When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
The reasons for the breakdown of the power switch in switching power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
In cases where the ELENBERG E32Q868A TV has lost its image, and the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the backlight LEDs of the ECG290MA-LZ1 panel). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the lines and connectors.
A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
The JUG7.820.1277 motherboard should be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing FLASH EN25P32 requires the necessary training and professional skills to repair modules at the component level, the necessary equipment and software. FLASH firmware included.
Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
In cases where there is no tuning to the local television channels, you should make sure that there is varicap supply voltage (30-33V) and other supply voltages at the terminals of the tuner DWE-7053DW-PLL3.
Remember! Attempts to self-repair by users of the ELENBERG E32Q868A TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> ELENBERG E32Q868A MAIN JUG7.820.1277
The appearance of the MainBoard JUG7.820.1277 is shown in the figure below:JUG7.820.1277
The appearance of the power supply
Main features of the ELENBERG E32Q868A device:
Installed matrix (LED-panel) ECG320BB LCK (SP1) or ECG290MA-LZ1.
The matrix control uses the Timing Controller (T-CON) V290BJ1-XC01 ;.
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the ELENBERG E32Q868A TV are generated by the AY075D-4HF02 power module or its analogs using PWM SOT23-6 microcircuits (LD7536R - xxP36R58) and power switches of the K6A60D type.
MainBoard - the main board (motherboard) is a JUG7.820.1277 module, using EN25P32, TPA3110D2 ... and others.
The tuner TUNER DWE-7053DW-PLL3 provides the reception of television programs and tuning to channels.
Technical description
ELENBERG E32Q868A TV with a 32 "(81 cm) diagonal LCD display in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 4000: 1. V The LED panels of this TV are equipped with edge LED backlighting - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog PAL systems, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p.
The power of the sound system 16 W (2x8 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), audio x2, component, SCART, VGA, HDMI, USB. 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.
The power consumed by the TV working in the network mode is 45 watts.
Overall dimensions: 790x542x221 mm.
The mass of the TV: 10.7 kg.
Attention! The screen of the LED-TV ELENBERG E32Q868A is its most expensive and most 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.
