Technical description and composition of the DIGITAL DL-26J82 TV, type of panel and applicable modules. The composition of the modules.Digital
Model: DL-26J82
Chassis / Version: JPE-MST718 MODEL: S7
Panel: T260XW02
Power Supply (PSU): PSU and Mine are the same as 32
MainBoard: JPE-MST718 MODEL: S7
IC MainBoard: MST718BU-LF PS25LV020 SC7314S TDA9886TS TDA1517
Tuner: ET-5C511-BS1C
Technical Specifications DL-26J82
DIGITAL DL-26J82
General recommendations for repairing TV LCD
Possible malfunctions
- The DIGITAL DL-26J82 TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
Typically, with such manifestations, the defect is caused by faulty elements in the main power supply module of the PSU. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary first of all to check the power switches and rectifier diodes for a possible partial or complete breakdown.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the power 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 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 the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protection circuits should be restored immediately after the repair is completed.
- 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-MST718 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 components MST718BU-LF PS25LV020 SC7314S TDA9886TS TDA1517. 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 it is necessary to check the voltage of the tuner ET-5C511-BS1C and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
TV users and owners must remember that attempts to self-repair a DIGITAL DL-26J82 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
Diagonal 26 inches (66 cm), 16: 9, Resolution 1024x768, Support HD 720p, Brightness 500 cd / m2, Contrast ratio 1200: 1, Viewing angle 178 °
The appearance of the MainBoard JPE-MST718 is shown in the figure below:JPE-MST718
JPE-MST718 can be used in TVs:
DIGITAL DL-15J82 (Panel M150XN07), DIGITAL DL-20J80 (Panel SVA201VG01TB), DIGITAL DL-20J85 (Panel M201EW02), DIGITAL DL-26J82 (Panel T260XW02), DIGITAL DL-32J82 (Panel T315XW02).
Main features of the DIGITAL DL-26J82 device:
Installed matrix (LCD panel) T260XW02.
The formation of the necessary supply voltages for all nodes of the DIGITAL DL-26J82 TV is carried out by the PSU power supply module, or its analogues.
MainBoard - the main board (motherboard) is a module JPE-MST718, using chips MST718BU-LF PS25LV020 SC7314S TDA9886TS TDA1517 and others.
The ET-5C511-BS1C tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T260XW02 V6
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 15/5 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 6 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
