Technical description and composition of the ERISSON 15LM03 TV, type of panel and applicable modules. The composition of the modules.ERISSON
Model: 15LM03
Chassis / Version: PA20154
Panel: SVA150XG04TB
Inverter (backlight): PC60008A 2CG IV02B04D
PWM Inverter: BI3102
Power Supply (PSU): Adapter 12V 4A
MainBoard: PA20154 5TG
IC MainBoard: TDA15063H / N1C00, TSU36AWVJ-LF-1, 24C16, AN17825A
Tuner: TDQ-6F6 / W126D
Specifications 15LM03
ERISSON 15LM03
General recommendations for repairing TV LCD
Possible malfunctions
- ERISSON 15LM03 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.
With such manifestations, in some cases, the Adapter power module is faulty.
This TV model is equipped with an external power adapter type Adapter 12V 4A, which the owner can purchase independently, and repairing it may not always be advisable, however, sometimes there is some reason to open it and eliminate simple typical defects typical of IIPS. 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 converters for possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short-circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key are most often cut off.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protection circuit should be restored immediately after the repair is completed.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
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, 24C16, AN17825A 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 the TV works normally from external devices, but does not tune into television channels, the TDQ-6F6 / W126D tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention to users! Self-repair of the ERISSON 15LM03 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> ERISSON 15LM03 Chassis PA20154----5TG
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 15LM03 device:
Installed matrix (LCD panel) SVA150XG04TB.
The PC60008A inverter is used to power the backlight lamps, it is controlled by the BI3102 PWM controller.
To power all the internal components of the ERISSON 15LM03 TV, an external adapter type 12V 12V 4A is used.
MainBoard - the main board (motherboard) is a PA20154 module, using TDA15063H / N1C00, TSU36AWVJ-LF-1, 24C16, AN17825A, and others.
The TDQ-6F6 / W126D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SVA-NEC
Model: SVA150XG04TB
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
Brightness: 250 cd / m²
Contrast Ratio: 450: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 60%
Response Time: 3/9 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V