Technical description and composition of the TV BBK LMP3229HDU, type of panel and applicable modules. The composition of the modules.BBK
Model: LMP3229HDU Ver1
Chassis / Version: Ver 1
Panel: T315HW02 v. 7 // T315HW01V
T-CON: T370HW02 VC 37T04-C06
Inverter (backlight): DS-1931T03013-9BN-0000000-03423-05
PWM Inverter: OZ9937GN ((16), N5100V (8)
MOSFET Inverter: P1504EDG (3), P1004BD (3)
Power Supply (PSU): MLT666 T Rev1.2a KB5150 E202404
MainBoard: MSTV3208-ZC01-01
Tuner: F21WT-3BAR-E - TCL100511554
BBK
Model: LMP3229HDU Ver2
Chassis / Version: ver1
Panel: T315HW04 V7
T-CON: T370HW02 370T04-C0G RM5101 AUO-12401 TPS65161
Inverter (backlight): VIT71884.00 rev2
PWM Inverter: OZ964SN A5324N
MOSFET Inverter: P4004ED
Power Supply (PSU): MLT666 T REV 1.2
PWM Power: MC0628R, L6562D (PFC)
MainBoard: MSTV3208-ZC01-01
IC MainBoard: Cpu: MST6M48RHS-LF-Z1, Spi Flash: EN25P32, Sound: TDA3113D2
Tuner: F21WT-3BAR-E
Control: RC3229
Technical Specifications LMP3229HDU
BBK LMP3229HDU
General recommendations for repairing TV LCD
Possible malfunctions
- The BBK LMP3229HDU TV does not turn on and does not show any signs of operability at all. There is no reaction to either the remote control or the front panel control buttons.
Most often, with such manifestations, the main power module MLT666 is found to be faulty. It is necessary to verify the presence of secondary voltages and, if not, check the power switches and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch may also be PWM (PWM) MC0628R, L6562D (PFC). It is checked only by replacement with a known good one.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or inverter. If all the electrolytic capacitors of the filter according to the power supply of the inverter are working, make sure that the lamps are working, then you need to check the converter keys and the secondary windings of the transformers.
If in diagnosing a malfunction, it is necessary to disable 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 finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the MSTV3208-ZC01-01 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Sometimes it is necessary to check or replace (if necessary) the elements of the MainBoard board - Cpu: MST6M48RHS-LF-Z1, Spi Flash: EN25P32, Sound: TDA3113D2. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Before replacing the F21WT-3BAR-E tuner, if there is no tuning for the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention! For users and owners of LMP3229HDU TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
The appearance of the MainBoard MSTV3208-ZC01-01 is shown in the figure below:The motherboard MSTV3208-ZC01-01 is made using the multifunction microprocessor MST6M48RHS-LF, which includes a scaler (graphic controller-scaler). To organize the work of the processor, the external RAM H5PS5162GFR 512Mb DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (4Mb) are used. To provide power to the processor core, a DC / DC converter with an output voltage of 1.2V is used, assembled on the basis of the MP1482 PWM controller. Other nodes of the processor are powered by linear voltage stabilizers 2.5V, 3.3V. 1.8V voltage is used to power the DDR RAM, 3.3V is needed for the SPI FLASH ROM.
It is advisable to start the MainBoard repair by checking the supply voltage in Stand-by mode 5V and 3.3V. In operating mode, check the operation of all linear stabilizers and the DC / DC converter. If there is a backlight and there is no image, you need to check the power of the 5V or 12V panel (depending on the type of LCD panel), which should be present directly on the LVDS connector.
If the indicator signals Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond SPI chips, it is advisable to replace them with new ones in case of software failures.
MSTV3208-ZC01-01 can be used in TVs:
BBK LEM2648SD (Panel V260B1-LE9 revC1), BBK LEM3248SD (Panel HV320WX2-130 (B3)), BBK LMP3229HDU Ver1 (Panel T315HW02 v.7), BBK LMP3229HDU Ver2 (Panel T315HW04 V7), BBK LEM2649HD (Panel V260H1-LE7 Rev C1), MYSTERY MTV-2607W (Panel V260H1-L05), MYSTERY MTV-3206 (Panel T315XW04 V.7), MYSTERY MTV-3207W (Panel V315B3-L04 rev.c1), MYSTERY MTV-3213LW (Panel T315XW04 V.8), MYSTERY MTV-2220LW (Panel CLAA215FA15), MYSTERY MTV-3207W (Panel HV320WX2-110), MYSTERY MTV-2614LW (Panel V260H1-LE6), MYSTERY MTV-3208WH (Panel V315H1-L02), MYSTERY MTV-2411LW (Panel V236H1-LE5 Rev.C1), MYSTERY MTV-2618LW (Panel V260B2-LE11), MYSTERY MTV-2211LW (Panel CLAA215FA10), MYSTERY MTV-2414LW (Panel V236H1-L01), MYSTERY MTV-2611LW (Panel V260H1-LE6 Rev.C1), MYSTERY MTV-3206W (Panel T315XW03 V.3), MYSTERY MTV-3211LW (Panel V315H3-LE2 Rev. C1), MYSTERY MTV-4207WH (Panel T420HW09 V.1), MYSTERY MTV-1921LD (Panel HT185WX3).
PSU Advanced
The LMP3229HDU TV is equipped with an MLT666 power module using the PFC (Power Factor Correction) scheme, which acts as an active filter to eliminate the higher harmonic components of the current consumption. The step-up converter based on the L6562D PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes, when the value of the charge current determines its reactance (about 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
The appearance of the power supply
Main features of the BBK LMP3229HDU device:
Installed matrix (LCD panel) T315HW04 V7.
The matrix control uses the Timing Controller (T-CON) T370HW02.
The VIT71884.00 inverter is used to power the backlight, controlled by the OZ964SN A5324N PWM controller. As power elements of the inverter, keys of the P4004ED type are used.
The necessary supply voltages for all nodes of the BBK LMP3229HDU TV are generated by the MLT666 power module or its analogs using MC0628R, L6562D (PFC) microcircuits.
MainBoard - the main board (motherboard) is an MSTV3208-ZC01-01 module, using Cpu microcircuits: MST6M48RHS-LF-Z1, Spi Flash: EN25P32, Sound: TDA3113D2 and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
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
LCD TV BBK LMP3229HDU with LCD T315HW04, diagonal size 32 "(81 cm) 16: 9 format. The brightness of the screen is 500 cd / m² backlight fluorescent lamps CCFL (EEFL). The ratio of maximum brightness to minimum (contrast) is 1500: 1. The design and technical capabilities of the TV provide viewing of broadcasts and films in high quality HD with a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. I process and generate a digital signal in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, MPEG4, MKV, JPEG.
The power of the sound system 16 W (2x8 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, component, SCART, RGB, VGA, HDMI x2, USB. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in the operating mode from the network is 170 watts.
Overall dimensions: With stand 790x576x215 mm, Without stand 790x515x90 mm.
Attention! The BBK LMP3229HDU LCD TV panel T315HW04 V7 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!