Technical description and composition of the DAEWOO DSL-26M1TC TV, panel type and applicable modules. The composition of the modules.DAEWOO
Model: DSL-26M1TC
Panel: V260B1-L03 Rev. C2
T-CON: V260B1-C03
Inverter (backlight): VIT70038.50 Rev.3
Power Supply (PSU): MLT366A
MainBoard: 3425C Ver5.0, 2814c ver9.0
Tuner: M09WPP-1P-E
Technical Specifications DSL-26M1TC
DAEWOO DSL-26M1TC
General recommendations for repairing TV LCD
Any repair usually begins with an external inspection. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
A malfunction of the power supply is often manifested corny - the TV does not turn on, does not make any sounds, does not light up and does not blink with any indicators. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the rectifier bridge of the mains voltage and the power key (s) of the converter. The complete inoperability of the power supply unit can be caused by a short circuit in the power elements in the primary circuit, followed by an open fuse, or a short circuit in the loads.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The IC_Power PWM controller chip can also cause a breakdown of the power switch of the converter.
In cases where the DAEWOO DSL-26M1TC TV has lost an image, and the sound is there and all the other functions are functional, there is a possibility of a malfunction of the inverter (converter for powering the backlight). When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power. 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 their completion it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
In cases of attempts to repair the motherboard 3425C Ver5.0, 2814c ver9.0, it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed with local heating.
Before changing the M09WPP-1P-E tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Owners and users of the DAEWOO DSL-26M1TC TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
Main features of the DAEWOO DSL-26M1TC device:
Installed matrix (LCD panel) V260B1-L03 Rev. C2.
The matrix control uses the Timing Controller (T-CON) V260B1-C03.
The inverter VIT70038.50 is used to power the backlight.
The necessary supply voltages for all nodes of the DAEWOO DSL-26M1TC TV are generated by the MLT366A power supply module or its analogs.
MainBoard - the main board (motherboard) is a 3425C module.
The M09WPP-1P-E tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: V260B1-L03
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.2M (6-bit + FRC), CIE1931 72%
Response Time: 3/5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 12 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
Brand: DAEWOO, Model: DSL-26M1TC.
Shortly from the TV: LCD, built-in DVD player, 26 ", 852x480, sound: 16 W.
The composition includes MainBoard 3425C Ver5.0, 2814c ver9.0 and LCD panel (matrix) V260B1-L03 Rev.C2.
Power Supply Unit (PSU) MLT366A Power Supply.
DAEWOO DSL-26M1TC LCD TV with V260B1-L03 LCD display, 26 "(66 cm) diagonal size in 16: 9 format. 500 cd / m² screen brightness is provided by CCFL (EEFL) lamps. The ratio of maximum brightness to minimum ( contrast ratio) is 800: 1. 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. Supported media file formats: MP3, WMA, MPEG4 , VideoCD, SVCD, Picture CD, JPEG.
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), AV, S-Video, component, SCART, RGB, VGA, USB. An output for connecting headphones is provided. A VGA (D-Sub 15) connector is used to connect a computer or laptop. This interface supports resolutions: 640x480.
Overall dimensions: With stand 690x555x280 mm, Without stand 1044x692x125 mm.
Attention! The DAEWOO DSL-26M1TC LCD TV panel V260B1-L03 Rev.C2 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!