Technical description and composition of the ROLSEN RL-32B05F TV, panel type and modules used. The composition of the modules.ROLSEN
Model: RL-32B05F
Chassis / Version: MST6M48
Panel: T315HW04 V.7
Inverter (backlight): VIT71884.00 Rev: 2.LOGAN
PWM Inverter: OZ964SN (20), AS339M (14), AS324M-G1 (14)
MOSFET Inverter: P4004ED, P2904BD
Trans Inverter: T51.8224.210
Power Supply (PSU): K-190N1 Rev: A01 PBN1-B7Q235-03052 914-0607-372KTQ
PWM Power: 1653A (PFC), MCP1396AG (16), A7350M (8)
MOSFET Power: K2645, TF20N60
MainBoard: MST6M48 / MST6M182 T2 M6M8-B8P011-01735 417-01A2-64201G VER: A2
IC MainBoard: PAM8610, SGM330A, RT8284N (8)
Tuner: CDT-3FP212-31
RL-32B05F Specifications
ROLSEN RL-32B05F
General recommendations for TV LCD repair
Repair of a ROLSEN TV with MST6M48 chassis should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. It often happens that visible damage to elements or connections helps determine the direction of troubleshooting. If charred resistors, swollen electrolytic or sintered capacitors, ring cracks in the soldering of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction, as well as to check the connected elements and assemblies.
In cases where the ROLSEN RL-32B05F TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turned on, the K-190N1 power supply module is most likely faulty Rev: A01 PBN1-B7Q235-03052 914-0607-372KTQ or there is no processor power on the motherboard (a typical defect of some ROLSEN TV models). When repairing a power supply, it is advisable to start diagnostics with checking the mains fuse and electrolytic capacitors of the filters of the secondary rectifiers of the converter. In the event of a break in the fuse, the cause should be sought in the power semiconductor elements of the pulse converter of the main power supply unit. First of all, it is necessary to check the diodes of the mains voltage rectifier bridge and the power switch (keys) of the K2645, TF20N60 converter.
It should be remembered that in the practice of repair, usually power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the reason that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or broken resistors in the primary circuit, or the PWM controller microcircuit 1653A (8), MCP1396AG (16), A7350M (8) may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
In cases where the ROLSEN RL-32B05F 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 should 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. If, when diagnosing a malfunction, it is required to turn off 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 completed, it is imperative to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
On the motherboard MST6M48 / MST6M182 T2 M6M8-B8P011-01735 417-01A2-64201G VER: A2, in case of a malfunction, you should first check the operability of all stabilizers or power converters of microcircuits and, if necessary, update the software (software). In cases of complex MB (SSB) repairs and with the necessary skills and equipment, it may sometimes be necessary to replace its PAM8610, SGM330A, RT8284N (8) chips and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.
Attention to users! Self-repair of the ROLSEN RL-32B05F TV without proper qualifications and experience can lead to its complete non-repairability!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> ROLSEN RL-32B05F, Main Board:MST6M48/MST6M182 T2B, Spi Flash: Wb25Q32B, Panel: T315HW04 V.D
The appearance of the MainBoard RSAG7.820.1637 is shown in the figure below:RSAG7.820.1637
RSAG7.820.1637 can be used in TVs:
BBK LT3218SU (Panel LTA320AP02 S07), BBK LT3218SU (Panel LTA320AP02), ROLSEN RL-32A03105U (Panel LTA320AP02), ROLSEN RL-32A09105F (Panel LC320WUN (SA)(B4)), ROLSEN RL-32A09105U (Panel LTA320AP05).
Additionally by PSU
The K-190N1 power supply module uses a Power Factor Correction (PFC) circuit to eliminate multiple AC harmonics introduced by the device into the mains. The PFC node is a Step-Up Converter based on a 1653A PWM regulator that evenly distributes high-frequency pulses of the charging current of the electrolytic capacitor of the mains rectifier filter within a 50Hz period. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the mains frequency), but by the elements of the converter. As a result, a change in the pulse amplitude (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The serviceability of the PFC unit is indicated by the presence of an increased voltage (about + 380V) in operating mode on the capacitor of the mains filter.
The main features of the ROLSEN RL-32B05F device:
Installed matrix (LCD-panel) T315HW04 V.7.
The inverter VIT71884.00 is used to power the backlight lamps, it is controlled by the PWM controller OZ964SN (20), AS339M (14), AS324M-G1 (14). The transformer T51.8224.210 is installed in the inverter converter. The keys of the P4004ED, P2904BD type are used as power elements of the inverter.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32B05F TV is carried out by the K-190N1 power module, or its analogs using the 1653A (PFC), MCP1396AG (16), A7350M (8) microcircuits and power switches of the K2645, TF20N60 type.
MainBoard - the main board (motherboard) is an MST6M48 module, using microcircuits PAM8610, SGM330A, RT8284N (8) and others.
The CDT-3FP212-31 tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T315HW04 V7
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA3, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
ROLSEN RL-32B05F TV with LCD T315HW04, 32 "(81 cm) 16: 9 format diagonal. Screen brightness of 500 cd / m² is backlit by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio of 30,000: 1 is provided by special operation control illumination depending on the illumination of areas in the scene.The design and technical capabilities of the TV provide viewing of broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC Graphic processing and digital signal shaping takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker sound system power 20 W (2x10 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 x2, S-Video x2, component, VGA, HDMI x2, USB. 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.
The power consumed by the TV in operating mode from the network is 140 watts.
Dimensions: without stand 787x494x101 mm.
TV weight: 12 kg.
Attention! ROLSEN RL-32B05F LCD TV panel T315HW04 V.7 is its most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!