Technical description and composition of the ROLSEN RL-15X11 TV, panel type and modules used. The composition of the modules.ROLSEN
Model: RL-15X11
Chassis / Version: LC-17IE22
Panel: LM150X08 (A6)
Inverter (backlight): integrated into PSU
PWM Inverter: OZL28GN
Power Supply (PSU): YP15021 REV 0
PWM Power: NCP1203D60, AP9971GD
MOSFET Power: P4NK80ZFP
MainBoard: LC-17IE22
IC MainBoard: AM29LV040B, 24C32A 24C02, K6X4008T1-F, VF70 RTD2023, WP7720DS
Tuner: TAEW-G053D 6700VS0003E
RL-15X11 Specifications
ROLSEN RL-15X11
General recommendations for TV LCD repair
Possible malfunctions ROLSEN RL-15X11
If the ROLSEN RL-15X11 TV does not turn on and does not show the slightest signs of operability, first of all, you need to check the health of the power supply. Make sure that there are secondary voltages and, if they are absent, check the power switch (P4NK80ZFP) and the rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in short-circuit mode, and in case of short-circuit in the elements of the primary circuit, the mains fuse usually breaks off.
Mos-Fet switches used in switching power supplies (SMPS) rarely fail without reasons that must be looked for by checking other circuit elements. Breakdown is often caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or breakdown of resistors in stabilization circuits. The PWM microcircuit NCP1203D60 can also cause a breakdown of the power switch of the converter.
The required voltages at the test points are shown in the figure below.
In cases where the ROLSEN RL-15X11 TV has lost the image, but there is sound and all other functions are operational, there is a possibility of a malfunction of the inverter (converter for powering the backlight lamps). When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves fail, the malfunction of which can be detected by replacing, connecting for diagnostics to the connectors that are known to be serviceable and suitable in power. When disabling protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all standard protection circuits must be restored.
If the LC-17IE22 motherboard is faulty, first of all it is necessary to check all the linear regulators and power converters of its chips. The main supply voltages are shown in the figure below. If necessary, you should update or replace the software (software). Sometimes it is possible to check the health of the MB only by replacing it. Often the MB (SSB) board must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - AM29LV040B, 24C32A 24C02, K6X4008T1-F, VF70 RTD2023, WP7720DS and replace the failed chips with new ones. Some malfunctions may be associated with the use of BGA soldering technologies in modern Main Board. Usually such defects are detected by local heating of the chip.
If the TV operates normally from external devices, but does not tune to TV channels, the TAEW-G053D 6700VS0003E tuner may malfunction. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the reason for the inoperability of the tuner may be a software failure.
Owners of the RL-15X11 TV are advised to contact only qualified specialists with experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> 24C32A / AM29LV040B ROLSEN RL-15X11, Main: LC-17IE22, Panel: LM150X08(A6)
The appearance of the MainBoard LC-17IE22 is shown in the figure below:LC-17IE22
External view of the power supply
The main features of the ROLSEN RL-15X11 device:
Installed matrix (LCD panel) LM150X08 (A6).
A converter combined with a power supply is used to power the backlight lamps, it is controlled by an OZL28GN PWM controller.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-15X11 TV is carried out by the YP15021 power module, or its analogs using NCP1203D60, AP9971GD microcircuits and power switches of the P4NK80ZFP type.
MainBoard - the main board (motherboard) is an LC-17IE22 module, using the AM29LV040B, 24C32A 24C02, K6X4008T1-F, VF70 RTD2023, WP7720DS and others.
Tuner TAEW-G053D 6700VS0003E provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LM150X08-TLC1
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: 170 cd / m²
Contrast Ratio: 550: 1
Display Colors: 16.7M (6-bit + Hi-FRC)
Response Time: 2/6 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V
ROLSEN RL-15X11 TV with LCD LM150X08, diagonal size 15 "4: 3 format. The brightness of the screen is 250 cd / m2 provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 450: 1 The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC.Graphic processing and digital signal shaping occurs in the 480i, 480p, 576i, 576p standards.
Speaker power 6 W (2x3W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, SCART, RGB, VGA. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
Overall dimensions: 460x370x160 mm.
TV weight: 5.7 kg.
Attention! ROLSEN RL-15X11 LCD TV panel LM150X08 (A6) is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!