Technical description and composition of the RUBIN RB-23K101F TV, panel type and modules used. The composition of the modules.RUBIN
Model: RB-23K101F
Panel: LM230WF1 (TL) (F1)
Inverter (backlight): 471R1006 467-0101-23731G KB-6160 4L 471R1001 KJ-2
PWM Inverter: MP10073ES (16)
MOSFET Inverter: ME12P04 (3), ME12N04 (3)
Trans Inverter: KTC 401-8322-27411G KTC (27412G) KAK 1048
Power Supply (PSU): 465-01A2-18001G P771-A90072-04751 K-56L1 LYD-3 465R101 ZD-95 (G) F
PWM Power: NCP1271
MOSFET Power: WFF6N60
MainBoard: 471-01A4-22001G MJ16-A9P206-00570 - MST6x16 MJ16-A5P-058
IC MainBoard: SA7454, 74HC4052, Z1071AI (8), JRC4558 (8), 4953P (8)
Tuner: CDT-3FP2I2-01 SA7454
Control: HOF10E849GPD9
RUBIN
Model: RB-23K101F
Chassis / Version: LG
Panel: LM230WF1
Power Supply (PSU): 471-0102-22001G A2
MainBoard: 471-01A4-2200F MST6X16 A4
IC MainBoard: MST6M16JS-LF, EN25F16, 24C64
Tuner: F21WT-3BKR-E
Specifications RB-23K101F
RUBIN RB-23K101F
General recommendations for TV LCD repair
RUBIN with LG chassis, like other TVs, it is advisable to start repairing with a careful examination of external and internal elements and modules. Sometimes, based on the visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements begin. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred layer of paint on the resistors - all this for the repairman can be a significant clue in assumptions about the causes and consequences of a malfunction.
If the RB-23K101F TV does not turn on, does not emit any sounds when turned on, as well as no indicators on the front panel are lit or blinking, there is a high probability of a malfunction in the power module. In some cases, only the regulator or power converter of the control processor may be faulty, which is typical for some RUBIN models. In general, first of all, it is necessary to check the electrolytic capacitors of the filters of the secondary rectifiers and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. Options are possible.
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 circuit components - 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 RUBIN RB-23K101F, there is no image, or it appears for a second and disappears completely, but there is sound, most likely either the backlight lamps or their power converter (inverter) are faulty. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the common power supply. It must be borne in mind that in the event of a disconnection of the inverter protection (for the purpose of diagnostics) there is a risk of failure of the power elements of the inverter and take special care. After carrying out repair work, the protection circuits must be restored for the further safe operation of the TV.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or microcircuit power converters 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 MST6M16JS-LF, EN25F16, 24C64 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! Users and owners of RB-23K101F 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 -----------> RUBIN RB-23K101F , MB: MJ16-B3P279-00302, Panel: LM230WF1
Key features of the RUBIN RB-23K101F device:Installed matrix (LCD panel) LM230WF1.
The formation of the necessary supply voltages for all nodes of the RUBIN RB-23K101F TV is carried out by the 471-0102-22001G power module, or its analogs.
MainBoard - the main board (motherboard) is a 471-01A4-2200F module, using MST6M16JS-LF, EN25F16, 24C64 and others.
The F21WT-3BKR-E tuner provides reception of television programs and tuning to channels.
Information from an alternative source:
RUBIN RB-23K101F Chassis MST6X16 Same chassis for: KTC 20T51
Panel type (matrix): LM230WF1 (TL) (F1)
Motherboard: 471-01A4-22001G MST6X16, MST6M16JS-LF, quartz TK D14.31818, W25Q16BV spiflash, W9412G6JH-4 RAM, 74HC4052 multiplexer (switch), SA7454 amplifier, 24ะก02 x3), 2 HDMI inputs, VGA V, 2.6V, 2.6V and 5V, AOZ1071AI, Tuner: CDT-3FP212-01
Invertor: KB-6160 467-01A2-23731G, UI7366B generator, STU432S & STU413S keys, Tr-r: 730-703-22WDMSMC-1LH,
PSU: K-56L1 465-D1A2-18DD1G, LD7575BGS, SW7N65 key schematic K-56L1,
Additional technical information about the panel:
Brand: LG Display
Model: LM230WF1-TLD2
Type: a-Si TFT-LCD, Panel
Diagonal size: 23.0 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 509.184x286.416 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 1.3 / 3.7 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
RUBIN RB-23K101F TV with LCD LM230WF1, 23 "diagonal, 16: 9 format. Screen brightness of 300 cd / m² is provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1 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 formation digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
The power of the sound system of 6 W (2x3 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), 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.
Dimensions: without stand 557x407x71 mm.
TV weight: without stand: 4.5 kg.
Attention! The LM230WF1 panel of a RUBIN RB-23K101F LCD TV is its most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!