Technical description and composition of the ERISSON 22LS01 TV, panel type and applicable modules. The composition of the modules.ERISSON
Model: 22LS01
Chassis / Version: 5800-A8M32A-03
Panel: CLAA220WA01
Power Supply (PSU): 5800-PL22CL-00
PWM Power: LD7575PS
MOSFET Power: 2SK2645
MainBoard: 5800-A8M32A-03
IC MainBoard: MST718BU-LF, 24C16, EN25P20
Tuner: TDQ6F6 / T126CWADC
Specifications 22LS01
ERISSON 22LS01
General recommendations for repairing TV LCD
It is advisable to start any repair and diagnostics of the ERISSON 22LS01 TV with a careful external inspection of internal and external elements, including case parts, a display, buttons and cables. Any external damage can sometimes prompt the repairman to take further steps to determine the malfunction of the TV and localize the defect. Experienced repairmen are often aware of the causes of the defect and the possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
In case of a power supply module malfunction, external manifestations may be different, for example, ERISSON 22LS01 does not turn on at all and there is no indication of control lights on the front panel. In this case, the diagnosis and repair of the common power supply should always be started by checking the mains fuse. When it breaks, it is advisable to check for a breakdown, first of all, all power semiconductor elements of the converter and the rectifier diode bridge of the network, as well as the large electrolytic capacitor of the filter of the network rectifier and the key transistor.
If a breakdown of the power switch of the flyback converter of the power supply unit is detected, it should be remembered that it does not fail without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller that can only be checked by replacement, as well as others semiconductor elements (diodes, transistors, zener diodes).
In cases where the Power Factor Corrector (PFC) is used in the power supply, troubleshooting can be a bit more complicated.
If the ERISSON 22LS01 TV does not have an image, but there is sound, the malfunction should be sought in the power converter of the backlight (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overstated ESR.
Repairing the inverter is difficult because in case of any malfunction or emergency, even with uneven wear of the lamps, a protection is triggered, which turns it off for fire safety. Diagnostics become impossible and protection needs to be disabled.
It should be remembered that when the protection is turned off, there is always a risk of failure of the power elements of the inverter during diagnosis. After repair, it is necessary to restore all standard converter protection circuits.
The motherboard 5800-A8M32A-03 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 power supply circuits of the microcircuits are working, a software update may be necessary. If it is not possible to replace the MB board (SSB), you need to check the health of its elements - 24C16, EN25P20, tuner TDQ6F6 / T126CWADC. Defective components should be replaced.
Attention to users! Self-repair of the ERISSON 22LS01 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> ERISSON 22LS01 Chassis 5800-A8M32A-03
The appearance of the MainBoard 5800-A8M32A-03 is shown in the figure below:5800-A8M32A-03
5800-A8M32A-03 can be used in TVs:
ERISSON 22LS01 (Panel CLAA220WA01), HYUNDAI H-LCD2206 (Panel LTM220M1-L01).
The appearance of the power supply
Main features of the ERISSON 22LS01 device:
Installed matrix (LCD panel) CLAA220WA01.
The required supply voltages for all nodes of the TV ERISSON 22LS01 are generated by the power supply module 5800-PL22CL-00, or its analogs using LD7575PS microcircuits and power switches of the 2SK2645 type.
MainBoard - the main board (motherboard) is a 5800-A8M32A-03 module, using MST718BU-LF, 24C16, EN25P20, and others.
The TDQ6F6 / T126CWADC tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: CPT
Model: CLAA220WA01
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.6 inch
Resolution: 1680x1050, WSXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 464.94x290.587 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 5 (Tr + Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V