Technical description and composition of the ROLSEN RL-32B01 TV, panel type and modules used. The composition of the modules.ROLSEN
Model: RL-32B01
Chassis / Version: MS9
Panel: LC320WXN (SA) (A1)
Lamp backlight: 12 Lamp EEFL
T-CON: 6870C-0195A LC320WXN-SAA1
Inverter (backlight): 6632L-0495A (KLS-EE32TKH12)
PWM Inverter: BD9897FS
Trans Inverter: L1-EH32-3-08201F-UN
Power Supply (PSU): HLP-23A01 RSAG7.820.848A
PWM Power: NCP1207
MOSFET Power: FQP3N80C
MainBoard: RSAG7.820.1037
IC MainBoard: MST9E88L, F40-100GCP, HY50V281622FTP-5, A25L40PUO, 24C32AN, TMDS341A
Tuner: TDQ-6FT / W126H
RL-32B01 Specifications
ROLSEN RL-32B01
General recommendations for TV LCD repair
Possible manifestations of malfunctions
- ROLSEN RL-32B01 does not turn on, indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
In some of these cases, the main switching power supply, the HLP-23A01 module, is faulty. Its output voltages should be measured, and in their absence, check the serviceability of the power switches (FQP3N80C) of the converters and rectifier diodes for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often breaks off immediately 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) NCP1207, in the absence of external damage and short circuit between the terminals, are checked by replacing them with known good ones.
- There is no picture, there is sound, it reacts to the remote control Or the image may appear for a second when turned on and disappear immediately.
These manifestations can be provoked by the power module, or by defects in the inverter, as well as by the skew of currents in the lamps due to their uneven wear. After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, ring the power switches in its converter for breakdown and the secondary windings of the transformers for an open circuit.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protective circuits must be restored immediately after the repair is completed.
- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.
Repair or diagnostics of the RSAG7.820.1037 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). If it is not possible to replace the MB (SSB) board, it is necessary to check the serviceability of its elements - MST9E88L, F40-100GCP, HY50V281622FTP-5, A25L40PUO, 24C32AN, TMDS341A. Defective components must be replaced.
Before changing the TDQ-6FT / W126H tuner, if it is not possible to tune to TV channels, you should make sure that there are supply voltages, which must be measured at the corresponding tuner terminals and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be monitored with an oscilloscope
Owners and users of the ROLSEN RL-32B01 TV should remember that self-repair without special knowledge, skills and qualifications may be fraught with negative consequences that can lead to complete non-repairability of the device!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> ROLSEN RL-32B01 MS9, Main: RSAG7.820.1037, Panel: LC320WXN (SA)(A1)
The appearance of the MainBoard RSAG7.820.1037 is shown in the figure below:RSAG7.820.1037
RSAG7.820.1037 can be used in TVs:
BBK LT2614S (Panel V260B1-L02), BBK LT3214S (Panel LC320W01 (SL)(A1)), BBK LT4214S (Panel LC420WX7 Sl A1), BBK LT3215S (Panel LC320WX3 (SL)(C1)), BBK LT4014S (Panel LTA400WT-L17), DAEWOO DLP-26H1C (Panel V260B1-L02).
External view of the power supply
The main features of the ROLSEN RL-32B01 device:
Installed matrix (LCD panel) LC320WXN (SA) (A1).
Matrix control uses the 6870C-0195A Timing Controller (T-CON).
The inverter 6632L-0495A is used to power the backlight lamps, it is controlled by the PWM controller BD9897FS. The transformer L1-EH32-3-08201F-UN is installed in the inverter converter.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32B01 TV is carried out by the HLP-23A01 power module, or its analogs using NCP1207 microcircuits and FQP3N80C power switches.
MainBoard - the main board (motherboard) is an RSAG7.820.1037 module, using microcircuits MST9E88L, F40-100GCP, HY50V281622FTP-5, A25L40PUO, 24C32AN, TMDS341A and others.
The TDQ-6FT / W126H tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320WXN-SAA1
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 (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1100: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 12 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
ROLSEN RL-32B01 LCD TV LC320WXN, 32 "(81 cm) 16: 9 diagonal. Screen brightness of 500 cd / m² backlit by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio of 2000: 1 is provided by special control of operation illumination depending on the illumination of areas in the scene.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard graphic decomposition of 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and shaping digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i.
Speaker power 12 W (2x6 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, audio x3, S-Video, component, SCART x2, RGB, VGA, DVI HDCP, HDMI x2. 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, 1360x768.
TV weight: 16 kg.
Attention! ROLSEN RL-32B01 LCD TV panel LC320WXN (SA) (A1) is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!