Technical description and composition of the ROLSEN RL-32L1005U TV, panel type and modules used. The composition of the modules.ROLSEN LED
Model: RL-32L1005U
Chassis / Version: MST6M182VG
Panel: LC320EXN-SEA1 // LC320EXN (SE) (A3)
LED backlight: 6922L-0010A, 6920L-0148A
T-CON: LC320EXN-SEA1-k31 6870C-0414A
LED driver (backlight): 6917L-0097A PPW-LE32GX-O (A) Rev0.4
PWM LED driver: BD9395EFV
MOSFET LED driver: FDD850N10L
Power Supply (PSU): MP123 Rev: 2.1 // MP123-N
MainBoard: AS-MST6M182VG-LE1 Rev1.1
IC MainBoard: MST6M182VG-LF-Z1, EN25Q32B-104HIP, PS331 (HDMI), CT3257A (RS232)
Tuner: ET-6N1E-CF101R
RL-32L1005U Specifications
ROLSEN RL-32L1005U
General recommendations for TV LCD LED repair
Repair of the ROLSEN RL-32L1005U TV should start with a malfunction diagnosis, which involves a careful examination of the external and internal elements of the device. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before starting the necessary measurements. If ring cracks are found in the soldering of the terminals of the elements or broken connecting tracks, swollen capacitors or charred resistors - all this may be characteristic signs of the causes or consequences of an already known typical malfunction.
In cases where the ROLSEN RL-32L1005U TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light or blink, and there are no sounds and no signs of operability when turned on, the MEGMEET MP123 Rev power module is most likely faulty. : 2.1 or there is no power to the processor on the motherboard (a typical defect of some ROLSEN TV models). It is advisable to start diagnostics of the power supply module by checking the condition of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in a breakdown state in such situations.
As a rule, switches in switching power supplies (SMPS) are quite reliable and rarely fail without reasons that should be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
If when you turn on the ROLSEN RL-32L1005U there is no image, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the LED circuit of the LC320EXN-SEA1 panel backlight, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the common power supply.
It is often necessary to disassemble the panel to check the health of the LEDs, as well as the contact connections in the connectors and solders.
An open circuit in the lines of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. It takes several tens of volts to open all the junctions, and it is best to use a current source for such purposes.
If the AS-MST6M182VG-LE1 Rev1.1 motherboard is faulty, first of all it is necessary to check all linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes it is possible to check the health of the MB only by replacing it.
Before replacing the ET-6N1E-CF101R tuner, if there is no tuning to the channels, you must first check the supply voltage at its terminals, including the supply of varicaps (30-33V).
Remember! Attempts to self-repair the ROLSEN RL-32L1005U TV by users without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> ROLSEN RL-32L1005U, Main: AS-MST6M182VG-LE1
The appearance of the MainBoard AS-MST6M182VG-LE1 is shown in the figure below:AS-MST6M182VG-LE1
AS-MST6M182VG-LE1 can be used in TVs:
ROLSEN RL-32L1003U (Panel HV320WX2-201-D), ROLSEN RL-32L1005U (Panel LC320EXN-SEA1), ROLSEN RL-32L1005U-GR (Panel HV32WX2-201 / D).
External view of the power supply
The main features of the ROLSEN RL-32L1005U device:
Installed matrix (LED panel) LC320EXN-SEA1 or LC320EXN (SE) (A3).
Matrix control uses Timing Controller (T-CON) LC320EXN-SEA1-k31.
The LED driver 6917L-0097A is used to power the backlight LEDs, it is controlled by the PWM controller BD9395EFV. The keys of the FDD850N10L type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32L1005U TV is carried out by the MP123 power supply module, or its analogs.
MainBoard - the main board (motherboard) is an AS-MST6M182VG-LE1 module, using MST6M182VG-LF-Z1, EN25Q32B-104HIP, PS331 (HDMI), CT3257A (RS232) and others.
Tuner ET-6N1E-CF101R provides reception of television programs and tuning to channels.
Information from an alternative source:
ROLSEN RL-32L1005U-GR, BRAVIS LED-3299
Panel type (matrix): HV32WX2-201-D,
Motherboard: AS-MST6M182VG-LE1, MST6M182VG-LF-Z1, EN25Q32B-104HIP, PS331 (HDMI) CT3257A (RS232), Tuner: ET-6N1E-CF101R
PSU & Invertor: AY078D-4SF, LD7536R, K6A600, OB3362RP
Additional technical information about the panel:
Brand: LG Display
Model: LC320EXN-SEA1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 68%
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
ROLSEN RL-32L1005U TV with LCD HV32WX2-201, 32 "(81 cm) 16: 9. The LED panel of this TV is equipped with edge LED backlighting.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in a graphic resolution of 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM , NTSC Graphic processing and digital signal shaping takes place in 480i, 480p, 576i, 576p, 720p, 1080i standards Supported multimedia file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 13 W (2x6.5 W) 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, component, SCART, VGA, HDMI x3, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in operating mode from the network is 90 watts.
TV weight: 10.5 kg.
Attention! The HV32WX2-201 / D panel of the ROLSEN RL-32L1005U LED TV is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.