Technical description and composition of the ERISSON 15LM02 TV, type of panel and applicable modules. The composition of the modules.ERISSON
Model: 15LM02
Chassis / Version: PA20154
Panel: M150XN07 V.2
Inverter (backlight): IV02B04D V01
PWM Inverter: BI3102
Power Supply (PSU): Adapter 12V
MainBoard: PA20154 ---- 5TG
IC MainBoard: TDA15063H \ N1C00, TSU36AWVJ-LF-1, AN17825A, 24C16AN
Tuner: TDQ-6F6 / W126D
Specifications 15LM02
ERISSON 15LM02
General recommendations for repairing TV LCD
Possible malfunctions
- ERISSON 15LM02 TV does not turn on at all. The control lights do not light or flash. The TV on the remote control and the control panel buttons do not respond.
In some of these cases, the main switching power supply, the Adapter module, is faulty.
The external adapter 12V power supply is not always subject to repair, especially since the owner can purchase it independently. But, in some cases, it makes sense to open it and eliminate the simple typical defects inherent in converters in pulsed sources. It is necessary to measure its output voltages, and in case of their absence, check the operability of the power switches of the converters and rectifier diodes for the probability of a short circuit.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually 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 (OOS) stabilization circuits. 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, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
These manifestations can be triggered by a power module, or by defects in the inverter, as well as a distortion of the currents in the lamps due to their uneven wear. After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, it is necessary to ring in its converter power keys for breakdown and the secondary windings of transformers for an open.
If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- 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 PA20154 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). 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 - TDA15063H \ N1C00, TSU36AWVJ-LF-1, AN17825A, 24C16AN 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.
If there is no reception of television channels, but the TV is working properly from external devices, first of all you need to check the power supply of the TDQ-6F6 / W126D tuner and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
It should be remembered! Attempts to independently repair the ERISSON 15LM02 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> ERISSON 15LM02 Chassis PA20154----5TG.
FIRMWARE FOR SPI FLASH -----------> ERISSON 15LM02, Main: PA20154 ----5TG, Panel: 1024x768 4:3
The appearance of MainBoard PA20154 is shown in the figure below:PA20154
PA20154 can be used in TVs:
ERISSON 15LM03 (Panel SVA150XG04TB), ERISSON 15LM01 (Panel LC151V02), ERISSON 15LM02 (Panel 1024x768 4:3), HYUNDAI H-LCD1502 (Panel SVA150XG04TB).
Main features of the ERISSON 15LM02 device:
Installed matrix (LCD panel) M150XN07 V.2.
To power the backlight, an IV02B04D inverter is used, controlled by a BI3102 PWM controller.
To power all the internal components of the ERISSON 15LM02 TV, an external adapter 12V type is used.
MainBoard - the main board (motherboard) is a PA20154 module, using TDA15063H \ N1C00, TSU36AWVJ-LF-1, AN17825A, 24C16AN and others.
The TDQ-6F6 / W126D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: M150XN07 V5
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.0 inch
Resolution: 1024x768, XGA
Display Mode: TN, Normally White, Transmissive
Active Area: 304.128x228.096 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 270 cd / m²
Contrast Ratio: 600: 1
Display Colors: 16.2M (6-bit + FRC)
Response Time: 3/13 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V