Technical description and composition of the IZUMI TLE19H400B TV, type of panel and applicable modules. The composition of the modules.IZUMI LED
Model: TLE19H400B
Chassis / Version: MT8223L-V2.1
Panel: M185XW01 VF
LED backlight: P8GE 40LED
T-CON: M185XW01 VF Ctrl BD 18M02-C14
LED driver (backlight): HQ-LED60B5D
PWM LED driver: 9001 YIM8ED (16)
MOSFET LED driver: 19N10
Power Supply (PSU): AY036P-1HF08 REV1.0 3BS0030714 FR-1 KB-S151C
PWM Power: KPP 36R 90 (6), LGP 36R AH (6)
MainBoard: MT8223L-V2.1
IC MainBoard: UTC1517P, uP1707P (8), uP1715P (8)
Tuner: CDT-3FC212-36
Control: IR: DVD-V1.2
Technical Specifications TLE19H400B
IZUMI TLE19H400B
General repair guidelines for TV LCD LED
IZUMI TLE19H400B, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before the necessary measurements are taken. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
If the power module AY036P-1HF08 REV1.0 3BS0030714 FR-1 KB-S151C malfunctions, the external manifestations may be different, for example, the IZUMI TLE19H400B does not turn on at all and there is no indication of the indicator lights on the front panel. With the same symptoms, the stabilizer (converter) of the power supply to the control processor may be faulty. 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 bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, PWM controller KPP 36R 90 (6 ), LGP 36R AH (6), which can only be checked by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If there is no image when IZUMI TLE19H400B is turned on, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the M185XW01 V.F panel, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
Repair or diagnostics of the motherboard MT8223L-V2.1 should begin by checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements UTC1517P, uP1707P (8), uP1715P (8). BGA chip malfunctions are usually easy to detect by warming up.
The malfunction of the CDT-3FC212-36 tuner is established after checking the software and all the supply voltages at its terminals, including the varicap supply voltage (30-33V).
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
The appearance of the MainBoard MT8223L-V2.1 is shown in the figure below:MT8223L-V2.1
MT8223L-V2.1 can be used in TVs:
IZUMI TLE19H400B (Panel M185XW01 VF), IZUMI TLE22H400B (Panel 22 inches).
The appearance of the power supply
Main features of the IZUMI TLE19H400B device:
Installed matrix (LED-panel) M185XW01 VF.
The matrix control uses the Timing Controller (T-CON) M185XW01.
The LED driver HQ-LED60B5D is used to power the backlight LEDs, it is controlled by the 9001 YIM8ED PWM controller (16). As power elements of the LED driver, keys of the 19N10 type are used.
The required supply voltages for all nodes of the IZUMI TLE19H400B TV are generated by the AY036P-1HF08 power module, or its analogs using KPP 36R 90 (6), LGP 36R AH (6) microcircuits.
MainBoard - the main board (motherboard) is an MT8223L-V2.1 module, using UTC1517P, uP1707P (8), uP1715P (8), and others.
The tuner CDT-3FC212-36 provides the reception of television programs and tuning to channels.
Information from an alternative source:
IZUMI TLE19H400B
Panel Type (Matrix): M185XW01
Motherboard: MT8223L-V2.1 CVATECH, MT8223LFMU, EN25F16, Tuner: CDT-3FC2I2-36
LED Driver: HQ-LED60DC, Y1N8TD, 19N10
PSU: AY036P-1HF08
Additional technical information about the panel:
Brand: AUO
Model: M185XW01 VF
Type: a-Si TFT-LCD, Panel
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 3.6 / 1.4 (Tr / Td)
Frequency: 60Hz
Lamp Type: 10S4P WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V