Technical description and composition of the ERISSON 39LET30 TV, type of panel and applicable modules. The composition of the modules.ERISSON LED
Model: 39LET30
Chassis / Version: 40-MS8200-MAD2XG
Panel: V390HJ1-P01 // LVF390CMOT E1
MainBoard: 40-MS8200-MAD2XG
IC MainBoard: CPU MST6E182VS-LF-Z1, Flash GD25Q32
Tuner: 07-380-FI5-NFHG
Specifications 39LET30
ERISSON 39LET30
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular ERISSON 39LET30, it is advisable to start with a careful external examination of internal and external elements. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
If the ERISSON 39LET30 does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a power module malfunction. In some cases, only the processor power regulator may be faulty. Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
In cases where the ERISSON 39LET30 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 LVF390CMOT E1 panel (V390HJ1-P01)). 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.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the rations of their terminals, as well as the reliability of the connections in the connectors and rations of the terminals.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
In cases of attempts to repair the motherboard 40-MS8200-MAD2XG, it is necessary to check the operability of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU elements MST6E182VS-LF-Z1, Flash GD25Q32 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
If the TV works normally from external devices, but does not tune into television channels, the tuner 07-380-FI5-NFHG may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals.
It should be remembered! Attempts to repair the ERISSON 39LET30 TV, 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 -----------> ERISSON 39LET30, Main: 40-MS8200-MAD2XG, Panel: LVF390CMOT E1(V390HJ1-P01)
The appearance of the MainBoard 40-MS8200-MAD2XG is shown in the figure below:40-MS8200-MAD2XG
40-MS8200-MAD2XG can be used in TVs:
ERISSON 39LET30 (Panel V390HJ1-P01), ERISSON 32LET30 (Panel V32D30-CSOT V2), FUSION FLTV-23L18B (Panel LTA230AP01), GoldStar LT-19A310R (Panel M185XW01 V.F), HYUNDAI H-LED32V8 (Panel T315XW06 V.8).
Main features of the ERISSON 39LET30 device:
Installed matrix (LED-panel) V390HJ1-P01 or LVF390CMOT E1.
The required supply voltage for all nodes of the TV ERISSON 39LET30 provides a switching power supply.
MainBoard - the main board (motherboard) is a 40-MS8200-MAD2XG module, using CPU chips MST6E182VS-LF-Z1, Flash GD25Q32 and others.
Tuner 07-380-FI5-NFHG provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: ChiHsin
Model: V390HJ1-P01
Type: a-Si TFT-LCD, CELL
Diagonal size: 39 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 853.92x480.33 mm
Surface: Antiglare (Haze 3.5%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.6% (with Polarizer)
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit)
Response Time: 8 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
Trademark: ERISSON, Model: 39LET30.
Briefly from the TV: LCD, 1080p Full HD, diagonal 39 "(99 cm), HDMI: 2, USB, backlight type: Edge LED.
The composition uses MainBoard 40-MS8200-MAD2XG and an LCD panel (matrix) V390HJ1-P01, or LVF390CMOT E1.
Technical description
TV ERISSON 39LET30 with LCD V390HJ1-P01, diagonal size 39 "(99 cm) 16: 9 format. The required brightness of the screen 360 cd / m² is provided by LED backlight LED. 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.The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphic layout according to the standard 1080p (Full HD). Audio or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, JPEG. Stereo sound is realized by two built-in speakers .Uses NICAM STEREO audio processing system.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, VGA, HDMI x2, 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, 1280x1024, 1360x768.
Overall dimensions: With stand 373x270x120 mm, Without stand 524x340x44 mm.
The mass of the TV: 14.2 kg.
Attention! The V390HJ1-P01 panel of the ERISSON 39LET30 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.
