Technical description and composition of the IZUMI TL15H605B TV, type of panel and applicable modules. The composition of the modules.Izumi
Model: TL15H605B
Chassis / Version: T.VST26.3B 10104
Panel: LTM150XH-L06
T-CON: LTM150XHSLV4.1
MainBoard: T.VST26.3B 10104
IC MainBoard: TSUM26KE-LF, YD1517, 25Q80BVSIG, ISSI 464A-2 (24C64), MP1482DN
Tuner: TDQ-ATF27WT-F
Technical Specifications TL15H605B
IZUMI TL15H605B
General recommendations for repairing TV LCD
It is advisable to start any repair and diagnostics of the IZUMI TL15H605B TV with a careful external examination of internal and external elements, including case parts, a display, buttons, and cables. Often, according to certain external signs, the repairman can draw some 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. 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.
Malfunctions of the power module can be expressed in different ways, for example, the IZUMI TL15H605B does not turn on at all and the control lamps on its front panel do not light up and do not blink, there are no signs of operability. When diagnosing and repairing the power supply, it is necessary first of all to check the fuse, and if it breaks, you should check the power switch and rectifier bridge diodes for avalanche (thermal) breakdown.
It should be remembered that the N-FET keys used in flyback converters rarely fail for no reason that must be sought by checking other elements of the circuit. 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 PWM controller chip can also cause a breakdown of the power switch of the converter.
When using the Active Power Factor Correction (CMC) circuitry in the power module, the search for faulty elements is somewhat more complicated.
If the IZUMI TL15H605B does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction of the display backlight, or their power converter - inverter. 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 inverter itself, including in the secondary rectifier of the main PSU.
When repairing the inverter, it is often necessary for diagnostics to turn off the protection, which, for the purpose of fire safety, turns it off in any emergency situation, for example, during a malfunction or uneven wear of the lamps, which makes it difficult to find a defect.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
Diagnostics and repair of the motherboard T.VST26.3B 10104 is carried out by checking the performance of power stabilizers or updating 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 TSUM26KE-LF, YD1517, 25Q80BVSIG, ISSI 464A-2 (24C64), MP1482DN and other possible faulty components.
Owners and users of the IZUMI TL15H605B 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!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Main T.VST26.3B
The appearance of the MainBoard is shown in the figure below:T.VST26.3B
T.VST26.3B can be used on TVs:
HYUNDAI H-LCDVD2200 (Panel LTM220MT05 010), HYUNDAI H-LCD2216 (Panel M216H1-L01), IZUMI TL15H603B (Panel LTA150XH-L06), IZUMI TL15H605B (Panel LTM150XH-L06), MYSTERY MTV-2225WD (Panel V216B1-L04 REV.C1), MYSTERY MTV-2205W (Panel V216B1-L01), MYSTERY MTV-1605W (Panel HT156WX1-100).
Main features of the IZUMI TL15H605B device:
Installed matrix (LCD-panel) LTM150XH-L06.
The matrix control uses the Timing Controller (T-CON) LTM150XHSLV4.1.
The required supply voltage for all nodes of the TV IZUMI TL15H605B provides a switching power supply.
MainBoard - the main board (motherboard) is a T.VST26.3B module, using TSUM26KE-LF, YD1517, 25Q80BVSIG, ISSI 464A-2 (24C64), MP1482DN and others.
The TDQ-ATF27WT-F tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTM150XH-L06
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.0 inch
Resolution: 1024x768, XGA
Display Mode: TN, Normally White, Transmissive
Active Area: 304.1x228.1 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 400 cd / m²
Contrast Ratio: 400: 1
Display Colors: 16.2M (6-bit + FRC)
Response Time: 5/20 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V