Technical description and composition of the ROLSEN RL-32X11 TV, panel type and modules used. The composition of the modules.ROLSEN
Model: RL-32X11
Panel: LC320W01
Inverter (backlight): 6632L-0189A 6632L-0190A3
Power Supply (PSU): A1T4L30PN00
PWM Power: LX1688CPW
MOSFET Power: PF10L PF10H
MainBoard: LC-32IE11
IC MainBoard: CPU: VCT49X3I, Scaler: MST5151A
RL-32X11 Specifications
ROLSEN RL-32X11
General recommendations for TV LCD repair
It is recommended to start diagnostics of malfunctions and repair of ROLSEN from the chassis, as well as other electronic devices, with an external examination of external and internal elements. 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 check the connected elements and assemblies.
If the TV does not turn on, none of the indicators on its front panel will light or blink. Also, if the TV does not respond to the remote control and buttons, does not emit any sounds and any signs of operability when turned on, there is a certain probability that the A1T4L30PN00 power module is faulty and needs repair. Sometimes a problem with similar manifestations can occur only in the absence of processor power, which is typical for certain ROLSEN models. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the secondary rectifier filter and check the fuse and, if it is broken, the cause must be identified. Often in such cases an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes and PF10L PF10H transistors in the primary circuit.
It should be borne in mind that in the practice of repair, it is extremely rare for key transistors in switching power supplies (SMPS) to fail without reasons that should be looked for by checking other components, for example, a key breakdown can provoke faulty elements of damper circuits, or dried electrolytic capacitors or broken primary resistors power supply circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the LX1688CPW PWM regulator microcircuit are subject to verification, which it is advisable to check by replacement.
If ROLSEN RL-32X11 has no image, but there is sound, there is a possibility of a malfunction of the backlight lamps or their power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are in good condition. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is imperative to restore all standard converter protection circuits.
In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - CPU: VCT49X3I, Scaler: MST5151A which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its pins with the board (indicated by heating).
Once again, we remind TV users: you should not try to repair yourself without the appropriate knowledge, experience and the necessary qualifications! Trust repairs only to professionals with sufficient experience in the field of electronic repair.
The main features of the ROLSEN RL-32X11 device:Installed matrix (LCD panel) LC320W01.
The inverter 6632L-0189A is used to power the backlight lamps.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32X11 TV is carried out by the A1T4L30PN00 power module, or its analogs using LX1688CPW microcircuits and PF10L PF10H power switches.
MainBoard - the main board (motherboard) is an LC-32IE11 module, using CPU chips: VCT49X3I, Scaler: MST5151A and others.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320W01-SL20
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 8/10 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
ROLSEN RL-32X11 TV with LCD display LC320W01, 32 "(81 cm) diagonal, 16: 9 format. 600 cd / m² screen brightness is backed by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 1200: 1. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC.
Speaker 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), audio x2, S-Video, component, SCART x2, RGB, VGA, DVI HDCP. 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.
Dimensions: with stand 950x600x170 mm, without stand 950x570x120 mm.
TV weight: 19 kg.
Attention! ROLSEN RL-32X11 LCD TV panel LC320W01 is its most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!
