REPAIR / SERVICING TV IZUMI TLE15H500M

Technical description and composition of the IZUMI TLE15H500M TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE15H500M
Chassis / Version: T.VST26.7A
Panel: 15 inch
MainBoard: T.VST26.7A
IC MainBoard: Spi Flash: 25Q80, Eeprom: 24C32, Audio: YD1517P
Tuner: ET-6T1E-EF108WR3
Technical Specifications TLE15H500M
IZUMI TLE15H500M
General repair guidelines for TV LCD LED
Repair of electronic devices, including the IZUMI TLE15H500M TV, it is advisable to start with an external examination of its external and internal elements. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
In the absence of any signs of operability, when the IZUMI TLE15H500M does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the TV power module. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
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, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If there is no image when IZUMI TLE15H500M is turned on, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the circuit of the panel backlight LEDs 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.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
If the motherboard is faulty T.VST26.7A, first of all it is necessary to check all the linear stabilizers or power converters of its chips, as well as, if necessary, update the software. Sometimes you can check the health of MB only by replacement.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing Spi Flash elements: 25Q80, Eeprom: 24C32, Audio: YD1517P requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
If the TV works normally from external devices, but does not tune into television channels, the tuner ET-6T1E-EF108WR3 may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).

Attention to users! Self-repair of the IZUMI TLE15H500M TV without the appropriate qualifications and experience can lead to its complete non-repairability!

FIRMWARE FOR SPI FLASH  ----------->   IZUMI TLE15H500M, Main: T.VST26.7A

 In cases where a failure has occurred in Winbond's SPI FLASH software, we recommend replacing the chip with a new one. Often, faulty Winbond microcircuits can temporarily restore their functionality after temperature exposure, for example, when a soldering station is heated by a hairdryer. Sometimes this is enough to read the regular contents of the software.

Repair MainBoard
The appearance of MainBoard T.VST26.7A is shown in the figure below:
T.VST26.7A
T.VST26.7A can be used on TVs:
AKAI LEA-19S02P (Panel MT185GW01 V.1), Akai LTA-24S01P (Panel M236H1 L01 Rev.C1), AKAI LTA-22S01P (Panel CLAA216WA01), AKAI LTA-19S01P (Panel M185B1-L02), HYUNDAI H-LED22V1 (Panel CLAA215FA04), HYUNDAI H-LED19V3 (Panel MT185GW01 V.1), IZUMI TLE15H500M (Panel 15 ").
Main features of the IZUMI TLE15H500M device:
Installed matrix (LED-panel) 15 inches.
The required supply voltage for all nodes of the TV IZUMI TLE15H500M provides a switching power supply.
MainBoard - the main board (motherboard) is a T.VST26.7A module, using Spi Flash chips: 25Q80, Eeprom: 24C32, Audio: YD1517P and others.
The ET-6T1E-EF108WR3 tuner provides TV reception and channel tuning.

REPAIR / SERVICING TV IZUMI TLE42F400B

Technical description and composition of the IZUMI TLE42F400B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE42F400B
Chassis / Version: MST6M181VS-V3.0
Panel: V420H2-LE3 REVC3
LED backlight: MD30445DE-A
T-CON: V420H2-CS1
LED driver (backlight): T87D159.00
PWM LED driver: GB2500, BA2902F
Power Supply (PSU): AY130D-4SF01 AY1136A69297
MainBoard: MST6M181VS-V3.0
IC MainBoard: TAD7266, MSH9010-LF (24), M13S2561616A, PS331
Tuner: CDT-3BP5I2-36
Technical Specifications TLE42F400B
IZUMI TLE42F400B
General repair guidelines for TV LCD LED
Possible malfunctions
- IZUMI TLE42F400B does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
In some of these cases, the main switching power supply, the AY130D-4SF01 module, turns out to be faulty. It is necessary to measure its output supply voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key 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 an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM), in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
In such cases, the most likely malfunction of the LED backlight elements. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the MST6M181VS-V3.0 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). If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - TAD7266, MSH9010-LF (24), M13S2561616A, PS331. Defective components should be replaced.

In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltage at the terminals of the tuner CDT-3BP5I2-36. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.

Attention to users! Independent repair of the IZUMI TLE42F400B TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!

Repair MainBoard
The appearance of the MainBoard MST6M181VS-V3.0 is shown in the figure below:
MST6M181VS-V3.0
MST6M181VS-V3.0 can be used in TVs:
IZUMI TLE32H410M (Panel V315B5-LE3 REV.C2), IZUMI TLE26H400B (Panel T260XBNO V.0), IZUMI TLE42F400B (Panel V420H2-LE3 REVC3).
The appearance of the power supply
Main features of the IZUMI TLE42F400B device:
Installed matrix (LED-panel) V420H2-LE3 REVC3.
The matrix control uses the Timing Controller (T-CON) V420H2-CS1.
The LED driver T87D159.00 is used to power the backlight LEDs, it is controlled by the GB2500, BA2902F PWM controller.
The formation of the necessary supply voltages for all nodes of the IZUMI TLE42F400B TV is carried out by the power module AY130D-4SF01, or its analogues.
MainBoard - the main board (motherboard) is an MST6M181VS-V3.0 module, using TAD7266, MSH9010-LF (24), M13S2561616A, PS331 and others.
The tuner CDT-3BP5I2-36 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V420H2-LE3 Rev. C3
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 930.24x523.26 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 6000: 1
Display Colors: 1.07B (8-bit + Hi-FRC), CIE1931 72%
Response Time: 5.5 (G to G)
Frequency: 120Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (4 ch, 10-bit), 92 pins Voltage: 12.0V

REPAIR / SERVICING TV IZUMI TLE32H750B

Technical description and composition of the IZUMI TLE32H750B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE32H750B
Chassis / Version: T.MS18VG.81B
Panel: MT3151A05-2
LED driver (backlight): integrated into PSU
PWM LED driver: PWM 8pin
Power Supply (PSU): AY066D-4SF
PWM Power: PWM SOT23-6 LD7536R
MainBoard: T.MS18VG.81B 12145
IC MainBoard: MST6M182VG-LF-Z1, SPI Flash: 25Q32BSIG, TPA3110D2, IT6633E-P, AIC2857F
Tuner: CDT-3SP512-36
Technical Specifications TLE32H750B
IZUMI TLE32H750B
General repair guidelines for TV LCD LED
Possible malfunctions
- The IZUMI TLE32H750B TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
Most often, with such manifestations, the main power module AY066D-4SF is found to be faulty. It is necessary to measure its output supply voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more often 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 an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) PWM SOT23-6 LD7536R, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- 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.
In such cases, the most likely malfunction of the LED backlight elements. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the T.MS18VG.81B 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). Board repair and chip replacement MST6M182VG-LF-Z1, SPI Flash: 25Q32BSIG, TPA3110D2, IT6633E-P, AIC2857F are made with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
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 CDT-3SP512-36 and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.

Attention to users! Self-repair of the IZUMI TLE32H750B TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!

Repair MainBoard
The appearance of MainBoard T.MS18VG.81B is shown in the figure below:
T.MS18VG.81B
T.MS18VG.81B can be used in TVs:
AKAI LEA-32V07P (Panel T315XW06 V.0), BBK LEM3283 V1.0 (Panel LC320EXN SDA1), BBK LEM3283F (Panel V315H3-LE4 Rev.C1), ERISSON 42LEN60 (Panel LC420EUN), ERISSON 32LEN60 (Panel LTA320AN01 D02 ), FUSION FLTV-32H20B (Panel LM315TA-T01), SUPRA STV-LC3217W (Panel LC320WXE-SBV1), SUPRA STV-LC3217AWL STV-LC3217W (Panel HV320WX2-201), SUPRA STV-LC3277W (Panel HV320WX2-201), SUPRA STV-LC32170F (Panel HK315TVM-HHC9H).
The appearance of the power supply
Main features of the IZUMI TLE32H750B device:
Installed matrix (LED panel) MT3151A05-2.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a PWM 8pin PWM controller.
The necessary supply voltages for all nodes of the IZUMI TLE32H750B TV are generated by the AY066D-4SF power module or its analogs using PWM SOT23-6 LD7536R microcircuits.
MainBoard - the main board (motherboard) is a module T.MS18VG.81B, using microchips MST6M182VG-LF-Z1, SPI Flash: 25Q32BSIG, TPA3110D2, IT6633E-P, AIC2857F and others.
The tuner CDT-3SP512-36 provides the reception of television programs and tuning to channels.


 Additional technical information about the panel:
Brand: CSOT
Model: MT3151A05-2
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: HVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 62%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V

REPAIR / SERVICING TV IZUMI TLE32H410M

Technical description and composition of the IZUMI TLE32H410M TV, panel type and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE32H410M
Panel: V315B5-LE3 REV.C2
LED driver (backlight): T87D156.00 (01)
PWM LED driver: HAI 7201TC NN1030 (16). BA2901F (14),
MOSFET LED driver: AO D4126
Power Supply (PSU): AY072D-4SF01 (02, 07, 10)
MainBoard: MST6M181VS-V3.0
IC MainBoard: TAD7266 MSH9010-LF (24), M13S2561616A, PS331,
Tuner: CTD-3BP5I2
Technical Specifications TLE32H410M
IZUMI TLE32H410M
General repair guidelines for TV LCD LED
The IZUMI TLE32H410M TV, like many other electronic devices, it is advisable to start repairing with an inspection of all external and internal elements. 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. Electrolytic capacitors of filters with a swollen body, as well as ring cracks or a layer of coal on burned-out resistors formed in the soldered terminals of the heating elements, sometimes tell the repairman the causes of the malfunction and possible consequences.
If the IZUMI TLE32H410M does not turn on, no control lights on the front panel are on or blinking, therefore, there is a very high probability of a failure of the AY072D-4SF01 power module (02, 07, 10). In some cases, only the processor power regulator may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
If the IZUMI TLE32H410M has no image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the V315B5-LE3 REV.C2 panel, or their power converter - LED driver. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
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.
The motherboard MST6M181VS-V3.0 must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
In cases of attempts to repair the MB (SSB) board, it is necessary to check the health of its elements - TAD7266 MSH9010-LF (24), M13S2561616A, PS331, which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
In cases where there is no tuning to the local television channels, you should make sure that the varicaps supply voltage (30-33V) and other supply voltages are present at the terminals of the CTD-3BP5I2 tuner.

Remember! Attempts to self-repair by users of the IZUMI TLE32H410M TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!

Repair MainBoard
The appearance of the MainBoard MST6M181VS-V3.0 is shown in the figure below:
MST6M181VS-V3.0
MST6M181VS-V3.0 can be used in TVs:
IZUMI TLE32H410M (Panel V315B5-LE3 REV.C2), IZUMI TLE26H400B (Panel T260XBNO V.0), IZUMI TLE42F400B (Panel V420H2-LE3 REVC3).
Main features of the IZUMI TLE32H410M device:
The matrix (LED panel) V315B5-LE3 REV.C2 is installed.
The LED driver T87D156.00 is used to power the backlight LEDs, it is controlled by the HAI 7201TC NN1030 PWM controller (16). BA2901F (14) ,. As power elements of the LED driver, keys of the AO D4126 type are used.
The necessary supply voltages for all nodes of the IZUMI TLE32H410M TV are generated by the AY072D-4SF01 power module, or its analogs .
MainBoard - the main board (motherboard) is an MST6M181VS-V3.0 module, using TAD7266 MSH9010-LF (24), M13S2561616A, PS331, and others.
The tuner CTD-3BP5I2 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V315B5-LE3
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 400 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (Tr + Td)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V

REPAIR / SERVICING TV IZUMI TLE32H410

Technical description and composition of the IZUMI TLE32H410 TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE32H410
Chassis / Version: HK-T.MST182V03
Panel: T315S23-L01
MainBoard: HK-T.MST182V03
IC MainBoard: Flahs: 25Q32
Tuner: CDT-3SP512-36
Technical Specifications TLE32H410M
IZUMI TLE32H410
General repair guidelines for TV LCD LED
Repair of the IZUMI TLE32H410 TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. In some cases, visible external damage to the elements can suggest the direction of troubleshooting and localization of the defect even before the start of the necessary measurements at the control points of the nodes of electronic circuits. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
If the TLE32H410 TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink, there is a high probability of a malfunction in the power supply module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some IZUMI models. When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
If the IZUMI TLE32H410 does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction in the T315S23-L01 panel backlight LED circuit, or their power converter - LED driver. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source.
On the motherboard HK-T.MST182V03, in the event of a malfunction, you should first check the performance of all the stabilizers or power converters of the microcircuits and, if necessary, update the software (software).
When repairing an MB board, you need to check its components Flahs: 25Q32. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating.

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.

FIRMWARE FOR SPI FLASH  ----------->   IZUMI TLE32H410, Main: HK-T.MST182V03, Panel: T315S23-L01

In case of failures in Winbond's SPI FLASH software, sometimes they can temporarily restore their functionality after temperature exposure, for example, heating with a soldering station or a lighter. Often this is enough to be able to read the regular software content. After that, the chip should be replaced with a new one.

Repair MainBoard
The appearance of the MainBoard HK-T.MST182V03 is shown in the figure below:
HK-T.MST182V03
HK-T.MST182V03 can be used in TVs:
IZUMI TLE32H410 (Panel T315S23-L01), RUBIN RB-32K102U (Panel T315XW03 V.D).
Main features of the IZUMI TLE32H410 device:
The matrix (LED-panel) T315S23-L01 is installed.
The required supply voltage for all nodes of the TV IZUMI TLE32H410 provides a switching power supply.
MainBoard - the main board (motherboard) is an HK-T.MST182V03 module, using Flahs: 25Q32 chips and others.
The tuner CDT-3SP512-36 provides the reception of television programs and tuning to channels.

REPAIR / SERVICING TV IZUMI TLE32H330B

Technical description and composition of the IZUMI TLE32H330B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE32H330B
Panel: T320XVN01.0
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362RP
Power Supply (PSU): KW-PLE320301A
PWM Power: GR8876A
MOSFET Power: MDF7N65B
MainBoard: CV181H-X
IC MainBoard: 6M181, 25Q32BVSIG_ checksum 82BA, TPA3110LD2, IT6633E-P
Tuner: CDT-3SP512-37
Technical Specifications TLE32H330B
IZUMI TLE32H330B
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs of IZUMI TLE32H330B, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. 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. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
Faults in the KW-PLE320301A power supply module can be expressed in different ways, for example, the IZUMI TLE32H330B does not turn on at all and the control lamps on its front panel do not light up and do not blink, and there are no signs of operability. It should be noted that with the same external manifestations, the processor power regulator (converter) may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
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 for no reason, which should be sought by checking other elements of the primary circuit - electrolytic capacitors, PWM controller GR8870A, which can be checked only by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the IZUMI TLE32H330B has no image, there is sound and the channels are switched, there is a possibility of a malfunction in the T320XVN01.0 panel backlight LED circuit, or their power converter - LED driver. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
On the CV181H-X motherboard, in the event of a malfunction, you should first check the operation of all the stabilizers or power converters of the microcircuits and, if necessary, update the software (software).
In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its chips 6M181, 25Q32BVSIG_ checksum 82BA, TPA3110LD2, IT6633E-P and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before changing the tuner CDT-3SP512-37, if it is not possible to tune to television channels, make sure that there are supply voltages, including varicap supply (30-33V), which must be measured on the corresponding tuner pins.

Remember! Attempts to self-repair by users of the IZUMI TLE32H330B TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!

To reduce the backlight current in LED drivers with an OB3362RP (TSOP16) controller, increase the total resistance of the resistors from pin 5 (ISET) to the chassis. The maximum current in each of the four channels (in milliamps) for the Rset resistor (in kilo-ohms) is determined from the ratio 3000 * 1.2V / Rset.

 The appearance of the MainBoard CV181H-X is shown in the figure below:
The CV181H-X motherboard uses the MST6M181VG processor, combined with a scaler and installed using BGA technology.
It is advisable to start the repair of this MainBoard by checking the linear stabilizers and voltage converters necessary to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. If there is no image, but the display backlight is working properly, it is necessary to check the power of the 5V or 12V LCD panel, depending on the type of panel used, which should be measured directly on the LVDS connector. If the TV does not exit Stand-by mode and does not respond to the remote control and control buttons, if the necessary supply voltages are available, the SPI Flash software should be updated.
CV181H-X can be used in TVs:
IZUMI TLE32H330B (Panel T320XVN01.0), MYSTERY MTV-3210W (Panel LC320WXE SBV2), SUPRA STV-LC27270FL (Panel M270H3-L05).
The appearance of the power supply
Main features of the IZUMI TLE32H330B device:
Installed matrix (LED-panel) T320XVN01.0.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OB3362RP PWM controller.
The necessary supply voltages for all nodes of the IZUMI TLE32H330B TV are generated by the KW-PLE320301A power module or its analogs using GR8876A microcircuits and MDF7N65B type power switches.
MainBoard - the main board (motherboard) is a CV181H-X module, using chips 6M181, 25Q32BVSIG_ checksum 82BA, TPA3110LD2, IT6633E-P and others.
The tuner CDT-3SP512-37 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T320XVN01.0 CELL
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.1% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 78%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V

REPAIR / SERVICING TV IZUMI TLE32F400B

Technical description and composition of the IZUMI TLE32F400B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE32F400B
Chassis / Version: T.MS6M48.6B
Panel: V315H3-LE2
LED driver (backlight): L315H3-2EA-A002B
Power Supply (PSU): MP118T
MainBoard: T.MS6M48.6B 10463
IC MainBoard: CPU: MST6M48, SPI Flash: 25Q32BVSIG
Tuner: ET-6T1E-LF-108W-A (TDQ-ATF27WT-F)
Technical Specifications TLE32F400B
IZUMI TLE32F400B
General repair guidelines for TV LCD LED
Possible manifestations of defects
- IZUMI TLE32F400B does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
Typically, with such manifestations, the defect is caused by faulty elements in the MP118T main power module. Then it is necessary to measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of power switches and rectifier diodes of the converters for a possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- 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.
In such cases, the most likely malfunction of the LED backlight elements. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the T.MS6M48.6B 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 attempts to repair the MB board (SSB), it is necessary to check the health of its elements - CPU: MST6M48, SPI Flash: 25Q32BVSIG which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
Before changing the tuner ET-6T1E-LF-108W-A (TDQ-ATF27WT-F), if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding terminals of the tuner 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 IZUMI TLE32F400B TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences, which can lead to complete non-repairability of the device!

FIRMWARE FOR SPI FLASH  ----------->   IZUMI TLE32F400B, Main: T.MS6M48.6B 10463, Panel: V315H3-LE2

 The appearance of MainBoard T.MS6M48.6B is shown in the figure below:
T.MS6M48.6B
The appearance of the power supply
Main features of the IZUMI TLE32F400B device:
Installed matrix (LED-panel) V315H3-LE2.
The LED driver L315H3-2EA-A002B is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the IZUMI TLE32F400B TV is carried out by the MP118T power module, or its analogues.
MainBoard - the main board (motherboard) is a T.MS6M48.6B module, using CPU chips: MST6M48, SPI Flash: 25Q32BVSIG and others.
The tuner ET-6T1E-LF-108W-A (TDQ-ATF27WT-F) provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V315H3-LE2
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V

REPAIR / SERVICING TV IZUMI TLE32F200B

Technical description and composition of the IZUMI TLE32F200B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE32F200B
Chassis / Version: MST6M181VS
Panel: 32 inch
LED driver (backlight): MP118T KB-5150
Power Supply (PSU): MP118T KB-5150
MainBoard: MST6M181VS
IC MainBoard: CPU: MST6E181VS-LF-Z1, FLASH: EN25P32
Tuner: CDT-3BP512-36
Technical Specifications TLE32F200B
IZUMI TLE32F200B
General repair guidelines for TV LCD LED
It is advisable to start the repair of the IZUMI TLE32F200B MST6M181VS MP118T KB-5150 TV with a careful external inspection of both internal and external elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. 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.
In the case when the TLE32F200B does not turn on, does not respond to the remote control and the front panel buttons, does not blink bulbs and does not show any signs of operability, the MP118T KB-5150 power supply module is probably faulty in this case. If it is serviceable with such manifestations, it is necessary to check the stabilizer (converter) of the processor power supply on the motherboard. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is cut off in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
Sometimes the IZUMI TLE32F200B TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the panel backlight LEDs, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
If the MST6M181VS motherboard is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement.
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 varicaps of the tuner CDT-3BP512-36, which is usually within 30-33V, as well as other supply voltages at the terminals of the tuner.

Remember! Attempts to self-repair by users of the IZUMI TLE32F200B TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!

Repair MainBoard
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 TLE32F200B device:
Installed matrix (LED-panel) 32 inches.
The LED driver MP118T is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the IZUMI TLE32F200B TV is carried out by the MP118T power module, or its analogs.
MainBoard - the main board (motherboard) is an MST6M181VS module, using CPU chips: MST6E181VS-LF-Z1, FLASH: EN25P32 and others.
The tuner CDT-3BP512-36 provides the reception of television programs and tuning to channels.

REPAIR / SERVICING TV IZUMI TLE32D400B

Technical description and composition of the IZUMI TLE32D400B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE32D400B
Chassis / Version: T.MSD309.9B
Panel: V315H3-LE4
MainBoard: T.MSD309.9B 10345
IC MainBoard: CPU: MSD309BT-Z1, FLASH: GD25Q32, AIC2857F, R2A15122
Tuner: XDTT-6F1C / T1146
Technical Specifications TLE32D400B
IZUMI TLE32D400B
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular IZUMI TLE32D400B, it is advisable to start with a careful external examination of internal and external elements. In some cases, visible external damage to the elements can indicate the direction of troubleshooting and localization of the defect even before the start of the necessary measurements at the control points of electronic circuit nodes. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
If the TLE32D400B TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power supply module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some IZUMI models. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
The reasons for the breakdown of the power switch in pulsed power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
Sometimes the IZUMI TLE32D400B TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the backlight LEDs of the V315H3-LE4 panel, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source.
On the motherboard T.MSD309.9B 10345, in the event of a malfunction, you should first check the performance of all stabilizers or power converters of the microcircuits and, if necessary, update the software (software).
When repairing an MB board, you need to check its Flash components: 25Q32. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating.

Attention to users! Self-repair of the IZUMI TLE32D400B TV without the appropriate qualifications and experience can lead to its complete non-repairability!

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Chassis MSD309B Schematic diagram

FIRMWARE FOR SPI FLASH  ----------->   IZUMI TLE32D400B, Main: T.MSD309.9B 10345, Panel: V315H3-LE4

In case of failures in Winbond's SPI FLASH software, we recommend that you replace the chip itself with a new one. Sometimes Winbond microcircuits can recover for some time after high-temperature exposure, for example, heating with a soldering station or a lighter, which is sometimes enough to read its contents.

Repair MainBoard
The appearance of MainBoard T.MSD309.9B is shown in the figure below:
T.MSD309.9B
MainBoard T.MSD309.9B uses the MSD309B processor, DDRAM random access memory (RAM) in BGA version and SPI Flash ROM type 25Q32 (4Mb).
It is advisable to start the repair of the motherboard by checking the voltage converters and linear stabilizers necessary to provide power to the nodes in the operating and standby modes. The processor core is powered by + 1.5V. Also, the processor voltage requires + 2.5V and + 3.3V.
If the display backlight is working properly and there is no image, it is necessary to check the panel power (depending on the type, + 5V or + 12V), which is more convenient to measure directly on the LVDS connector. If, in the presence of all the supply voltages, the TV does not enter the operating mode, does not respond to the Remote Control and control buttons, you should update the SPI Flash firmware.
T.MSD309.9B can be used in TVs:
BBK LEM3242DT (Panel LC320EXN SDA1), BBK LEM3241FDT (Panel 32 "), BBK LEM2687FDT (Panel V260H1-LE1), IZUMI TLE32D400B (Panel V315H3-LE4), SUPRA STV-LC3245LF (Panel TC-315F1H2), SUPRA STV-LC39T820FL (Panel TC390FP01-B), SUPRA STV-LC46T810FL (Panel 1080p Full HD 1920x1080), SUPRA STV-LC39T810FL (Panel TC390FP01-A).
Main features of the IZUMI TLE32D400B device:
Installed matrix (LED-panel) V315H3-LE4.
The required supply voltage for all nodes of the TV IZUMI TLE32D400B provides a switching power supply.
MainBoard - the main board (motherboard) is a module T.MSD309.9B, using CPU chips: MSD309BT-Z1, FLASH: GD25Q32, AIC2857F, R2A15122 and others.
The tuner XDTT-6F1C / T1146 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V315H3-LE4
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 6000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V

REPAIR / SERVICING TV IZUMI TLE26H400B

Technical description and composition of the IZUMI TLE26H400B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE26H400B
Chassis / Version: MST6M181VS-V3.0
Panel: T260XBNO V.0
MainBoard: MST6M181VS-V3.0
IC MainBoard: FLASH: U42 25Q32BVS
Tuner: CDT-3BP512-36
Technical Specifications TLE26H400B
IZUMI TLE26H400B
General repair guidelines for TV LCD LED
TV IZUMI TLE26H400B, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. 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. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
In cases when the IZUMI TLE26H400B TV does not turn on, does not respond to the remote control and buttons, any indicators on the front panel do not light up and do not blink and there are no sounds and no signs of operability at all, the power module is most likely faulty or there is no processor power on motherboard (a typical defect of some IZUMI TVs). First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is broken in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
It should be remembered that in the practice of repair, usually the power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If the IZUMI TLE26H400B does not have an image, but there is sound, the backlight LEDs on the T260XBNO V.0 panel or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source.
In cases of attempts to repair the motherboard MST6M181VS-V3.0, it is necessary to check the performance of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - FLASH: U42 25Q32BVS. Defective components should be replaced.
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 varicaps of the tuner CDT-3BP512-36, which is usually within 30-33V, as well as other supply voltages at the terminals of the tuner.

We recommend the owners of the TLE26H400B TV for repair only to qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!

FIRMWARE FOR SPI FLASH  ----------->   IZUMI TLE26H400B, Main: MST6M181VS-V3.0, Panel: T260XBNO V.0

 In cases where there is a malfunction in the SPI FLASH software and a microcircuit manufacturer Winbond is installed, we recommend replacing it with a new one. Sometimes faulty SPI Winbond microcircuits can be restored for a while after being heated by a hairdryer or a lighter, which makes it possible to read the properly installed software.

Repair MainBoard
The appearance of the MainBoard MST6M181VS-V3.0 is shown in the figure below:
MST6M181VS-V3.0
MST6M181VS-V3.0 can be used in TVs:
IZUMI TLE32H410M (Panel V315B5-LE3 REV.C2), IZUMI TLE26H400B (Panel T260XBNO V.0), IZUMI TLE42F400B (Panel V420H2-LE3 REVC3).
Main features of the IZUMI TLE26H400B device:
Installed matrix (LED-panel) T260XBNO V.0.
The required supply voltage for all nodes of the TV IZUMI TLE26H400B provides a switching power supply.
MainBoard - the main board (motherboard) is an MST6M181VS-V3.0 module, using FLASH chips: U42 25Q32BVS and others.
The tuner CDT-3BP512-36 provides the reception of television programs and tuning to channels.

REPAIR / SERVICING TV IZUMI TLE24IF600B

Technical description and composition of the IZUMI TLE24IF600B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE24IF600B
Chassis / Version: MSTV59XUS-V1.0
Panel: M240HW02 V.1
LED driver (backlight): HQ-LED72 REV2.0 HQ-LED72A8
Power Supply (PSU): AY036P-1HF03 AY1231A057699
MainBoard: MSTV59XUS-V1.0
IC MainBoard: CPU: TSUMV59XES-Z1, Flash: cFeon Q32B-104HIP
Tuner: CDT-3BP512-36
Technical Specifications TLE24IF600B
IZUMI TLE24IF600B
General repair guidelines for TV LCD LED
Repair of electronic devices, including the IZUMI TLE24IF600B TV, it is advisable to start with an external examination of its external and internal elements. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. 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 IZUMI TLE24IF600B does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a power module malfunction. In some cases, only the processor power regulator may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
The reasons for the breakdown of the power switch in pulsed power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
If the IZUMI TLE24IF600B does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the backlight circuits of the M240HW02V.1 panel is likely. The LEDs or the power converter - LED driver may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the LED driver, and check the LEDs, connecting obviously known good diagnostics.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
Diagnostics and repair of the MSTV59XUS-V1.0 motherboard is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required.
In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its CPU chips: TSUMV59XES-Z1, Flash: cFeon Q32B-104HIP and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before changing the tuner CDT-3BP512-36, if it is not possible to tune to television channels, make sure that there are supply voltages, including varicap power supply (30-33V), which must be measured on the corresponding tuner pins.

Attention! Users and owners of TLE24IF600B televisions who do not have the appropriate qualifications, knowledge and experience are strongly advised against self-repair attempts in order to avoid negative consequences that could lead to complete non-repairability of the device.

FIRMWARE FOR SPI FLASH  ----------->   IZUMI TLE24IF600B, Main: MSTV59XUS-V1.0, Panel: M240HW02V.1

 The appearance of the MainBoard MSTV59XUS-V1.0 is shown in the figure below:
MSTV59XUS-V1.0
The appearance of the power supply
Main features of the IZUMI TLE24IF600B device:
Installed matrix (LED-panel) M240HW02 V.1.
The LED driver HQ-LED72 is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the IZUMI TLE24IF600B TV is carried out by the power module AY036P-1HF03, or its analogs.
MainBoard - the main board (motherboard) is an MSTV59XUS-V1.0 module, using CPU chips: TSUMV59XES-Z1, Flash: cFeon Q32B-104HIP and others.
The tuner CDT-3BP512-36 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: M240HW02 V1
Type: a-Si TFT-LCD, Panel
Diagonal size: 24.0 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 531.36x298.89 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit)
Response Time: 16/9 (Tr / Td)
Frequency: 60Hz
Lamp Type: 15S4P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V

REPAIR / SERVICING TV IZUMI TLE22H400B

Technical description and composition of the IZUMI TLE22H400B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE22H400B
Chassis / Version: MT8223L-V2.1
Panel: 22 inch
MainBoard: MT8223L-V2.1 CVATECH 2011.11.20
IC MainBoard: Cpu: MT8223LFMU, Spi Flash: MX25L1605, Eeprom: FT24C16, Audio amp: UTC1517P
Tuner: CDT-3FC212-36
Technical Specifications TLE22H400B
IZUMI TLE22H400B
General repair guidelines for TV LCD LED
Repair of electronic devices, including the IZUMI TLE22H400B TV, it is advisable to start with an external examination of its external and internal elements. 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. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
In cases when the IZUMI TLE22H400B TV does not turn on, does not respond to the remote control and buttons, any indicators on the front panel do not light up or blink, and there are no sounds and no signs of operability when turning on, the power module is most likely faulty or there is no processor power on motherboard (a typical defect of some IZUMI TVs). When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. When it is broken, the power elements of transistors and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If there is no image when IZUMI TLE22H400B is turned on, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the circuit of the panel backlight LEDs, 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.
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
In cases of attempts to repair the motherboard MT8223L-V2.1 CVATECH 2011.11.20, it is necessary to check the operability of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - Cpu: MT8223LFMU, Spi Flash: MX25L1605, Eeprom: FT24C16, Audio amp: UTC1517P and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
Before changing the tuner CDT-3FC212-36, if it is not possible to tune to television channels, make sure that there are supply voltages, including varicap power (30-33V), which must be measured on the corresponding tuner pins.

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.

FIRMWARE FOR SPI FLASH  ----------->   IZUMI TLE22H400B, Main: MT8223L-V2.1 CVATECH 2011.11.20

 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 ").
Main features of the IZUMI TLE22H400B device:
Installed matrix (LED-panel) 22 inches.
The required supply voltage for all nodes of the TV IZUMI TLE22H400B provides a switching power supply.
MainBoard - the main board (motherboard) is an MT8223L-V2.1 module, using Cpu chips: MT8223LFMU, Spi Flash: MX25L1605, Eeprom: FT24C16, Audio amp: UTC1517P and others.
The tuner CDT-3FC212-36 provides the reception of television programs and tuning to channels.

REPAIR / SERVICING TV IZUMI TLE22F750B

Technical description and composition of the IZUMI TLE22F750B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE22F750B
Chassis / Version: T.MS18VG.62B
Panel: M215HGE-L10
MainBoard: T.MS18VG.62B
IC MainBoard: SPI FLASH GD25Q3
Tuner: CDT-3SP5I2-36
Technical Specifications TLE22F750B
IZUMI TLE22F750B
General repair guidelines for TV LCD LED
Repair of the IZUMI TLE22F750B TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Based on visible external changes in the state of the components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before making the necessary measurements. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
In the case when the TLE22F750B does not turn on, does not respond to the remote control and buttons on the front panel, does not blink lights and does not show any signs of operability, the power supply module is probably defective in this case. If it is serviceable with such manifestations, it is necessary to check the stabilizer (converter) of the processor power supply on the motherboard. If there are no swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is necessary to check all power semiconductor elements first primary circuit - diodes and transistors for the probability of avalanche or thermal breakdown.
Power switches in switching power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
If, when you turn on the TV, the image appears and immediately disappears, or is absent initially when you turn on, but the sound is there and other functions work, there is a high probability of a malfunction of the LED driver (power converter for the backlight LEDs of the M215HGE-L10 panel). In such cases, the general power module is also subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the LED driver should be checked.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
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.
Diagnostics and repair of the motherboard T.MS18VG.62B is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Testing or replacing elements of SPI FLASH GD25Q3 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
Before replacing the tuner CDT-3SP5I2-36, if there is no tuning for the channels, you must first check the supply voltage at its terminals, including the power supply of varicaps (30-33V).

Remember! Attempts to self-repair by users of the IZUMI TLE22F750B TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!

The appearance of MainBoard T.MS18VG.62B is shown in the figure below:
T.MS18VG.62B
T.MS18VG.62B can be used in TVs:
BBK LEM2483F (Panel LG LC 230EUE(TD)(A1)), BBK LEM1983 (Panel LM185WH2 (TL)(A1)), DNS M24AM2 (Panel M236HGE-P02), DNS E16A90 (Panel LP156WH4 (TL)(A1)), ERISSON 23LEN60 (Panel LM230WF5), ERISSON 22LEN60 (Panel LS215AFTNO), ERISSON 24LEN60 (Panel LM230WF5 ), ERISSON 15LEN60 (Panel B156XW02 V.2), IZUMI TLE22F750B (Panel M215HGE-L10), RUBIN RB-19S2U (Panel V185B1-PE1 A01 REV 1.0), SUPRA STV-LC18250FL (Panel B173RW01 V.3).
Main features of the IZUMI TLE22F750B device:
Installed matrix (LED panel) M215HGE-L10.
The required supply voltage for all nodes of the TV IZUMI TLE22F750B provides a switching power supply.
MainBoard - the main board (motherboard) is a T.MS18VG.62B module, using SPI FLASH GD25Q3 chips and others.
The tuner CDT-3SP5I2-36 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: M215HGE-L10
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 strings WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V

REPAIR / SERVICING TV IZUMI TLE22F400B

Technical description and composition of the IZUMI TLE22F400B TV, type of panel and applicable modules. The composition of the modules.
IZUMI LED
Model: TLE22F400B
Panel: LM216WF4
T-CON: MT8223L-V2.1
LED driver (backlight): HQ-LED60DC
PWM LED driver: Y1N8TD
MOSFET LED driver: 19N10
PWM Power: AY036P-1HF08
MainBoard: LA.MV6.D2 0343
IC MainBoard: MT215DW01 V.3, 25D80VSIG, 24C32, YD1517P, TD158E, CT3257A, µP1715P (8), µ1707P (8)
Tuner: HFT-8F / 125CW
Appearance
IZUMI TLE22F400B
General repair guidelines for TV LCD LED
IZUMI TLE22F400B, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
Sometimes the IZUMI TLE22F400B TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is a failure of the common power module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible PWM chip AY036P-1HF08 from the manufacturer.
If there is no image when IZUMI TLE22F400B 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 LM216WF4 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.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
Repair or diagnostics of the LA.MV6.D2 0343 motherboard should begin by checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
When repairing an MB board, you need to check its components MT215DW01 V.3, 25D80VSIG, 24C32, YD1517P, TD158E, CT3257A, µP1715P (8), µ1707P (8). Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
In cases where there is no tuning to the local television channels, you should make sure that the voltage of the varicaps (30-33V) and other supply voltages at the terminals of the HFT-8F / 125CW tuner are present.

Attention to the owners! Attempts to self-repair the IZUMI TLE22F400B TV are not recommended by the manufacturer and can lead to serious negative consequences!

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).
Main features of the IZUMI TLE22F400B device:
The matrix (LED panel) LM216WF4 is installed.
The matrix control uses the Timing Controller (T-CON) MT8223L-V2.1.
To power the backlight LEDs, the HQ-LED60DC LED driver is used, controlled by the Y1N8TD PWM controller. As power elements of the LED driver, keys of the 19N10 type are used.
The required supply voltage for all nodes of the TV IZUMI TLE22F400B provides a switching power supply using microchips AY036P-1HF08.
MainBoard - the main board (motherboard) is an LA.MV6.D2 module using MT215DW01 V.3, 25D80VSIG, 24C32, YD1517P, TD158E, CT3257A, µP1715P (8), µ1707P (8) and others microcircuits.
The HFT-8F / 125CW tuner provides television reception and channel tuning.
Information from an alternative source:
IZUMI TLE22F400B
Panel Type (Matrix): LM215WF4 (TL) (E7)
Motherboard: MT8223L-V2.1, Tuner: CDT-3FCI2-36
T-con: LM215WF4-TLE7 P / N: 6870-1253B
LED Driver: HQ-LED60DC, Y1N8TD, 19N10
PSU: AY036P-1HF08,