Technical description and composition of the ROLSEN RL-32D1309T2C TV, panel type and modules used. The composition of the modules.ROLSEN LED
Model: RL-32D1309T2C
Chassis / Version: JUC7.820.00084054
Panel: M320X13-E1-H
LED backlight: SVJ320AG2_REV2_6LED_130307
T-CON: MT3151A05-3-XC-2
LED driver (backlight): integrated into PSU; 400 mA
PWM LED driver: MP4012
MOSFET LED driver: LP18N20
Power Supply (PSU): R-HS066D-1MF12
PWM Power: NCP1252A
MOSFET Power: MMBT4401
MainBoard: JUC7.820.00084054 HLS49J 32C2000
IC MainBoard: GD32Q64, F40-100GCP, H5TQ1G630FR, RT9108NB, MSB101A
Tuner: DT21WN-2A-E
RL-32D1309T2C Specifications
ROLSEN RL-32D1309T2C
General recommendations for TV LCD LED repair
Possible manifestations of defects
- The ROLSEN RL-32D1309T2C TV does not turn on and does not show any signs of turning on, does not respond to the control buttons and the remote control.
Most likely, in this case, the main switching power supply (SMPS) R-HS066D-1MF12 is faulty. It is necessary to measure its output supply voltages, and if they are absent, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually operate normally in an emergency short-circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and, less often, the current sensor in the source of the key.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) NCP1252A, in the absence of external damage and a short circuit between the terminals, are checked by replacing them with known good ones.
- There is no image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and immediately disappear.
A malfunction is usually in these cases most likely in the backlight units of the display matrix. Usually the cause of the malfunction is in the breakage of the LEDs, or in the connectors of the LED strips, but sometimes the LED driver is also faulty.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is required to open PN junctions connected in series.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the JUC7.820.00084054 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Often the MB (SSB) board needs to be replaced in the event of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - GD32Q64, F40-100GCP, H5TQ1G630FR, RT9108NB, MSB101A and replace the failed chips with new ones. Some malfunctions may be associated with the use of BGA soldering technologies in modern Main Board. Typically, 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 DT21WN-2A-E tuner may be faulty. 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.
Attention! Users and owners of RL-32D1309T2C TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from trying to repair themselves in order to avoid negative consequences that can lead to the complete non-repairability of the device.
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> ROLSEN RL-32D1309T2C, Main: JUC7.820.00084054 HLS49J 32C2000, Panel: M320X13-E1-H
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> R-HS066D-1MF12 Power supply
The appearance of the MainBoard LS1B is shown in the figure below:LS1B
JUC7.820.00084054 can be used in TVs:
BBK 40LEM-3080/FT2C (Panel ECG390AH-LD2 (SN)), BBK 32LEM-3081/T2C (Panel M320X13-E2-H), BBK 32LEM-1003/T2C (Panel M320X13-E4-L HD), DEXP 28A3000 (Panel R-HS055D-1MF), DEXP 50A7000 (Panel C500F13-E3-A), DNS C28DC2000 (Panel M280X13-E1-H), DNS C39DC2000 (Panel M390F13-E1-A), ERISSON 42LEC2000 (Panel M420F13-E1-L (G1)), ERISSON 55LEC2000 (Panel M550F13-E1-A 1080p Full HD), ERISSON 28LEC2000 (Panel M280X13-E1-H), RUBIN RB-32SD8T2C (Panel M320X13-E3-H), TELEFUNKEN TF-LED32S12T2 (Panel M320X12-E9-A(1)).
External view of the power supply
The main features of the ROLSEN RL-32D1309T2C device:
Installed matrix (LED panel) M320X13-E1-H.
Matrix control uses MT3151A05-3-XC-2 Timing Controller (T-CON).
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the MP4012 PWM controller. LP18N20 switches are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32D1309T2C TV is carried out by the R-HS066D-1MF12 power supply module, or its analogs using NCP1252A microcircuits and MMBT4401 power switches.
MainBoard - the main board (motherboard) is a JUC7.820.00084054 module, using GD32Q64, F40-100GCP, H5TQ1G630FR, RT9108NB, MSB101A and others.
The DT21WN-2A-E tuner provides reception of television programs and tuning to channels.
ROLSEN RL-32D1309T2C TV with LCD M320X13-E1-H, 32 "(81 cm) 16: 9 diagonal. The required screen brightness of 350 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 500,000: 1 is achieved by special control LED operation The LCD panel of the TV is equipped with direct backlighting with rear LEDs - Direct LED. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC Graphic processing and digital signal shaping occurs in 480i, 480p, 576i, 576p, 720p, 1080i standards Supported multimedia file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x3, USB. 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 digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Dimensions: with stand 734x490x165 mm, without stand 734x434x78 mm.
TV weight: 6.7 kg.
Attention! The M320X13-E1-H panel of the ROLSEN RL-32D1309T2C LED TV is an expensive and unreliable element.
Do not allow any impact 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.