Technical description and composition of the DIGITAL DL-37J86 TV, panel type and applicable modules. The composition of the modules.Digital
Model: DL-37J86
Chassis / Version: JPE MT8201A 070319
Panel: T370XW01 V.1
MainBoard: JPE MT8201A 070319
IC MainBoard: MT8201A MX29LV160CBTC HY5DU281622FTP MT8293AE CE 2816 A83019 15102NP 745109
Tuner: ET-6BE-F25
Technical Specifications DL-37J86
DIGITAL DL-37J86
General recommendations for repairing TV LCD
Possible manifestations of defects
- The DIGITAL DL-37J86 TV does not turn on, does not respond to the remote control and the control panel buttons, and does not blink with any indicators.
Failure in such cases should be sought in the power supply circuits. It is necessary to measure its secondary output voltages, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
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 main 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 the excess of maximum current or voltage values. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch may be PWM (PWM). It is checked only by replacement with a known good one.
- 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.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or inverter. If all the electrolytic capacitors of the filter according to the power supply of the inverter are working, make sure that the lamps are working, then you need to check the converter keys and the secondary windings of the transformers.
If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- 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 JPE 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). In cases of complex repairs of MB (SSB) and with the necessary skills and equipment, it may sometimes be necessary to replace its MT8201A MX29LV160CBTC HY5DU281622FTP MT8293AE CE 2816 A83019 15102NP 745109 chips and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before replacing the ET-6BE-F25 tuner, if there is no tuning for the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention to users! Self-repair of a DIGITAL DL-37J86 TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
Diagonal 37 "(94 cm), 16: 9, Resolution 1366x768, Support HD 720p HD, Brightness 500 cd / m2, Contrast 1500: 1, Viewing angle 178 °Main features of the DIGITAL DL-37J86 device:
Installed matrix (LCD panel) T370XW01 V.1.
The required supply voltage for all nodes of the TV DIGITAL DL-37J86 provides a switching power supply.
MainBoard - the main board (motherboard) is a JPE module using MT8201A MX29LV160CBTC HY5DU281622FTP MT8293AE CE 2816 A83019 15102NP 745109 chips and others.
The ET-6BE-F25 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T370XW01 V1
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 819.6x460.8 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit)
Response Time: 15/5 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
