Technical description and composition of the THOMSON T19E09DU-01B TV, panel type and modules used. The composition of the modules.THOMSON LED
Model: T19E09DU-01B
Chassis / Version: T.SIS231.T65
Panel: HM185WX3-301
LED backlight: BMTC MX185E48-ZC15F-02
T-CON: HM185WX1-400.X0.0
LED driver (backlight): integrated into PSU
PWM LED driver: OB3350CP
MOSFET LED driver: ME15N10
Power Supply (PSU): CTN1034-L REV: 1.0
PWM Power: PWM SOT23-6
MainBoard: T.SIS231.T65
IC MainBoard: 25Q64BSIG, NT5CB64M16FP, YD1517P, RT7237CH
Control: IR: MX-KONKA618-IR V.4
Specifications T19E09DU
THOMSON T19E09DU-01B
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- THOMSON T19E09DU-01B does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.
In such cases, you should start looking for a fault in the CTN1034-L power supply circuits. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches and rectifier diodes for possible partial or complete breakdown.
In the event of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of the PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) PWM SOT23-6 are usually checked by replacing them with new ones, or knowingly working.
- There is no picture, but there is sound and reaction to commands from the remote control. Or the image appears immediately after switching on and disappears.
The malfunction in most of these cases is found in the nodes and elements of the LED panel backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the line of series-connected LEDs without a special current source, and it is unsafe for them to use any voltage sources above 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Usually, Chinese multimeters with 9V power supply lightly light one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, the black one to the cathode. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of LED health. In the event of a malfunction of the LED, its zener diode will either be cut off, or broken through in the K / Z.
- The indicator blinks or is on constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the T.SIS231.T65 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace elements 25Q64BSIG, NT5CB64M16FP, YD1517P, RT7237CH. Malfunctions in BGA chips are usually easy to detect by warm-up.
If THOMSON T19E09DU has no image, but there is sound, often the display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the LCD panel - a process that requires experience and qualifications from the master. We do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV, light can be seen through the holes in the panel case.
In this case, the panel may also be faulty - damage to the strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But often the main board MainBoard turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, it is necessary to trace the passage of LVDS signals from the MainBoard with an oscilloscope, as well as synchronizing signals to the loops with drivers.
Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.
Attention to users! Self-repair of the THOMSON T19E09DU-01B TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
Additional MainBoard Repair
The appearance of the MainBoard T.SIS231.T65 is shown in the figure below:
T.SIS231.T65
T.SIS231.T65 can be used in TVs:
DNS M24DM8 (Panel M236HGE-L20 ReV.C1), DNS 22AE7000 (Panel CX215LEDM), ERISSON 28LEP91 (Panel st2751a01-1), ROLSEN RL-19E1501T2C (Panel V185BJ1-PE1), RUBIN RB-22SE5FT2C (Panel LM215DA-T01), RUBIN RB-22SE9FT2C (Panel M215HTN01.1), SHIVAKI STV-24LEDGR9 (Panel M236HGE-L20 Rev.C1), SHIVAKI STV-24LEDGW9 (Panel M236H3-LA3), SHIVAKI STV-24LED12 (Panel M236HGE-P01), THOMSON T24E09DU-01B (Panel V236BJ1-P03 (C1)).
External view of the power supply
The main features of the THOMSON T19E09DU-01B device:
Installed matrix (LED panel) HM185WX3-301.
Matrix control uses Timing Controller (T-CON) HM185WX1-400.X0.0.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the OB3350CP PWM controller. The keys of the ME15N10 type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the THOMSON T19E09DU-01B TV is carried out by the CTN1034-L power module, or its analogs using PWM SOT23-6 microcircuits.
MainBoard - the main board (motherboard) is a T.SIS231.T65 module, using 25Q64BSIG, NT5CB64M16FP, YD1517P, RT7237CH and others.
Additional technical information about the panel:
Brand: BOE
Model: HM185WX3-301
Type: a-Si TFT-LCD, CELL
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.2% (with Polarizer)
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit)
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
LED TV THOMSON T19E09DU with LCD display, diagonal 19 "(48 cm) in 16: 9 format. The declared brightness of the screen of 200 cd / m2 is provided by modern LED backlight LED. The ratio of maximum brightness to minimum (contrast) is not less than 1000: 1. The design of the LCD panel uses backlighting with edge-mounted LEDs - Edge LED. You can view in high quality HD at a resolution of 1366x768 pixels in the 720p standard (HD Ready). Input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. digital signal (graphic format) is produced in the standards 480i, 480p, 576i, 576p, 720p, 1080i Multimedia formats are supported: MP3, WMA, MPEG4, JPEG.
Speaker power 6 W (2x3 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI, USB. A headphone jack is provided. A standard VGA (D-Sub 15) connector is used to connect a laptop or computer. This interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768. The digital tuner has the ability to receive television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The power consumed by the TV from the network in operating mode is not more than 30 W.
Dimensions: with stand 438x310x165 mm, without stand 438x275x50 mm.
TV weight: with stand: 3.4 kg, without stand: 2.6 kg.
Attention! The panel of a THOMSON T19E09DU LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.
