Technical description and composition of the DAEWOO DLP-32C3F TV, panel type and applicable modules. The composition of the modules.DAEWOO
Model: DLP-32C3F
Chassis / Version: SL-500P
Panel: LTA320WT-L06
Lamp backlight: 12 Lamp CCFL
Inverter (backlight): HS320WK12 INVST320N
PWM Inverter: SEM2006
MOSFET Inverter: TPC8406-H
Power Supply (PSU): FEL-3226H
PWM Power: A6252, L6598 (PWM Resonant 16pin), L6562 (PFC)
MOSFET Power: P13NK60ZFP, P6NK60ZFP
MainBoard: 4859814993-03
IC MainBoard: MST96889LD-LF, V58C2128164SB15, MX25L8005PS-15G, TDA9886T, TDA8931T, 24C64A
Tuner: UV1316 / A I H-4
Appearance
DAEWOO DLP-32C3F
General recommendations for repairing TV LCD
Possible manifestations of defects
- The DAEWOO DLP-32C3F TV does not turn on, does not respond to the remote control and control panel buttons, does not light up, and does not blink indicators.
Failure in such cases should begin to be sought in the FEL-3226H power supply circuits. Then we recommend measuring its output voltages and, if they are absent, you should check the health of the power switches (P13NK60ZFP, P6NK60ZFP) and rectifier diodes of the converters for possible short circuit.
In the event of a breakdown in the secondary circuits of the converter, it can usually fail in short circuit mode, and in case of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM chips A6252, L6598 (PWM Resonant 16pin), L6562 (PFC) are usually checked by replacing with new ones, or obviously working.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
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 the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply to the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protection circuits should be restored immediately after the repair is completed.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the 4859814993 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). When repairing an MB board, you need to check its components MST96889LD-LF, V58C2128164SB15, TDA9886T, TDA8931T, 24C64A. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
Before replacing the UV1316 / A I H-4 tuner, if there is no tuning for the channels, 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 to users! Self-repair of a DAEWOO DLP-32C3F TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> EEPROM DAEWOO DLP-32C3F, Main: 4859814993 -03, Panel: LTA320WT-L06
The appearance of MainBoard 4859814993 is shown in the figure below:4859814993
4859814993 can be used in TVs:
DAEWOO DLP-32C5 (Panel LTA320AB02), DAEWOO DLP-32C7 (Panel LC320W01(SL)(A1)), DAEWOO DLP-32C3F (Panel LTA320WT-L06).
The appearance of the power supply
Main features of the DAEWOO DLP-32C3F device:
Installed matrix (LCD-panel) LTA320WT-L06.
The HS320WK12 inverter is used to power the backlight lamps, it is controlled by the PWM controller SEM2006. As power elements of the inverter, keys of the type TPC8406-H are used.
The necessary supply voltages for all nodes of the DAEWOO DLP-32C3F TV are generated by the FEL-3226H power module or its analogs using A6252, L6598 (PWM Resonant 16pin), L6562 (PFC) microcircuits and power switches of the type P13NK60ZFP, P6NK60ZFP.
MainBoard - the main board (motherboard) is a module 4859814993, using chips MST96889LD-LF, V58C2128164SB15, MX25L8005PS-15G, TDA9886T, TDA8931T, 24C64A and others.
The UV1316 / A I H-4 tuner allows you to receive television programs and tune to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA320WT-L06
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 44%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 2000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 10/6 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 12 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V