Technical description and composition of the TV AKIRA LCT-D26MT05ST, type of panel and applicable modules. The composition of the modules.AKIRA
Model: LCT-D26MT05ST
Panel: V260B1-L02 Rev. C1
T-CON: CM1671A-KQ // MSDV2601-ZC09-01-B P / N: 303C2601053
Inverter (backlight): MIP260B
PWM Inverter: SG3525AN
Power Supply (PSU): MIP260B-1
PWM Power: F9222, L656JD
MOSFET Power: 13N50, 5N50
MainBoard: MSDV2601-ZC01-01 C P / N: 303C2601073
IC MainBoard: CPU: MST9E19A; Spi flash: W25X40; AT89C2051; CPU: MST9E19A; SOUND: STA540SA
Tuner: JS-6H2 / 121
Appearance
AKIRA LCT-D26MT05ST
General recommendations for repairing TV LCD
AKIRA from the chassis, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
In the case when the LCT-D26MT05ST does not turn on, does not respond to the remote control and buttons on the front panel, does not blink bulbs and does not show any signs of operability, the MIP260B power supply module is probably faulty in this case. If it is serviceable under such manifestations, it is necessary to check the power supply stabilizer (converter) of the processor on the motherboard.When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), it is necessary first of all to check the mains fuse. When it is broken, the power elements of transistors and rectifier bridge diodes should be checked for avalanche (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 for no reason 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 the AKIRA LCT-D26MT05ST does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working. It is necessary to take into account that in cases of inverter protection shutdown (in order to be able to diagnose) there is a risk of failure of the inverter power elements and take special care. After carrying out repairs, the protection circuit must be restored for further safe operation of the TV.
If the motherboard MSDV2601-ZC01-01_C P / N: 303C2601073 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.
Attention to the owners! Attempts to repair the TV AKIRA LCT-D26MT05ST on its own are not recommended by the manufacturer and can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> AKIRA LCT-D26MT04ST Main MSDV2601-ZC01-01
The appearance of the MainBoard MSDV2601-ZC01-01 is shown in the figure below:MSDV2601-ZC01-01
MSDV2601-ZC01-01 can be used in TVs:
AKIRA LCT-D26MT05ST (Panel V260B1-L02 Rev.C1), AKIRA LCT-32MT04ST (Panel V315B1-L01 Rev.C3), AKIRA LCT-32MT05ST (Panel V315B1-L01 Rev.C2), MYSTERY MTV-2602W (Panel V260B1-L01 Rev.C2 ).
The appearance of the power supply
Key Features of the AKIRA LCT-D26MT05ST:
Installed matrix (LCD panel) V260B1-L02 Rev. C1.
The matrix control uses the Timing Controller (T-CON) CM1671A-KQ.
The MIP260B inverter is used to power the backlight, controlled by the SG3525AN PWM controller.
The necessary supply voltages for all nodes of the TV AKIRA LCT-D26MT05ST are generated by the MIP260B-1 power module or its analogs using F9222, L656JD microcircuits and power switches of the 13N50, 5N50 type.
MainBoard - the main board (motherboard) is an MSDV2601-ZC01-01 module, using CPU chips: MST9E19A; Spi flash: W25X40; AT89C2051; CPU: MST9E19A; SOUND: STA540SA and others.
The JS-6H2 / 121 tuner provides TV reception and channel tuning.
Information from an alternative source:
AKIRA LCT-D26MT05ST
Panel Type (Matrix): V260B1-L02 Rev. C1,
Motherboard: MSDV2601-ZC01-01_C P / N: 303C2601073
T-con: MSDV2601-ZC09-01-B P / N: 303C2601053, CM1671A-KQ, PSU &
Invertor: MIP260B
Additional technical information about the panel:
Brand: CMO
Model: V260B1-L02
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 575.769x323.712 mm
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.2M (6-bit + FRC), CIE1931 72%
Response Time: 3/5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: RSDS (1 Channel), 45 pins
Voltage: 5.3.3 / 5.0V (VDD / VIN5)