Technical description and composition of the DAEWOO DLP-32C5 TV, type of panel and applicable modules. The composition of the modules.DAEWOO
Model: DLP-32C5
Chassis / Version: SL-500P
Panel: LTA320AB02
T-CON: 320AB02CP2LV0.3 LMX4122TO, EM636165TS-6G, MAX9590, TPS65167A, 24C64WP, A1718
Inverter (backlight): SSI320A12
PWM Inverter: OZ9966SN
MOSFET Inverter: AOD486A
Trans Inverter: LT-32VE U0 082J CK
Power Supply (PSU): FEL-3226H
PWM Power: A6252, L6598 (PWM Resonant 16pin), L6562 (PFC)
MOSFET Power: P13NK60ZFP, P6NK60ZFP, STR-A6252, L6562N
MainBoard: 4859814993-04
IC MainBoard: MST96889LD-LF, V58C2128164SB15, TDA9886T, TDA8931T, 24C64A
Tuner: UV1316 / A I H-4
Control: R-55G10
Technical Specifications DLP-32C5
DAEWOO DLP-32C5
General recommendations for repairing TV LCD
Possible malfunctions
- DAEWOO DLP-32C5 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.
In the vast majority of such cases, a malfunction is detected in the FEL-3226H power supply module. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is first necessary to check the power switches (P13NK60ZFP, P6NK60ZFP, STR-A6252, L6562N) and rectifier diodes for a possible partial or complete breakdown.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a 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 key can be PWM (PWM) A6252, L6598 (PWM Resonant 16pin), L6562 (PFC). It is checked only by replacement with a known good one.
- 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.
These manifestations can be triggered by the power module, or by inverter defects, as well as by the distortion of the 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, it is necessary to ring in its converter the power switches for breakdown and the secondary windings of the 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 indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the 4859814993 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements MST96889LD-LF, V58C2128164SB15, TDA9886T, TDA8931T, 24C64A requires the necessary training and professional skills in repairing modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
Before changing the UV1316 / A I H-4 tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner terminals and checked for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Owners and users of the DAEWOO DLP-32C5 TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> DAEWOO DLP-26C2, DLP-26C3, DLP-32C1, DLP-32C2, DLP-32C3, DLP-32C5, DLP-32C6, DLP-32C7, DLP-37C3, DLP-37C7 chassis SL-500P
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).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the FEL-3226H module provides for the use of a Power Factor Correction unit. The PFC circuit is a flyback converter based on the L6562 PWM controller. The reactance of an electrolytic capacitor of a line filter at a frequency of 50-60 Hz is usually not more than 20-30 ohms and its charge directly from the network through open diodes could reach tens of amperes per pulse if no filtering were applied.
As a result of the PFC conversion, an increased voltage on the capacitor (about 380V) cannot directly open the rectifier diodes, on the anode of which the voltage will always be slightly less (about 300V) and then its charging current will always be limited by the elements of the PWM controller. As a result, the envelope of the high-frequency pulses of the consumed current will repeat the shape and phase of the input sinusoidal voltage. The presence of an increased voltage (+ 380V) on the network capacitor indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the DAEWOO DLP-32C5 device:
Installed matrix (LCD-panel) LTA320AB02.
The matrix control uses the Timing Controller (T-CON) 320AB02CP2LV0.3.
The SSI320A12 inverter is used to power the backlight, controlled by the OZ9966SN PWM controller. A transformer LT-32VE U0 082J CK is installed in the inverter converter. As power elements of the inverter, keys of the AOD486A type are used.
The necessary supply voltages for all nodes of the DAEWOO DLP-32C5 TV are generated by the FEL-3226H power supply module or its analogs using A6252, L6598 (PWM Resonant 16pin), L6562 (PFC) microcircuits and power switches of the type P13NK60ZFP, P6NK60ZFP, STR-A6252, L6562N.
MainBoard - the main board (motherboard) is a module 4859814993, using chips MST96889LD-LF, V58C2128164SB15, TDA9886T, TDA8931T, 24C64A and others.
The UV1316 / A I H-4 tuner allows you to receive television programs and tune to channels.
Information from an alternative source:
DAEWOO DLP-32C5 Chassis SL-500P
Panel Type (Matrix): LTA320AB02
Motherboard: 4859814993-04, MST96889LD-LF, V58C2128164SB15, TDA9886T, TDA8931T x2, 24C64A, 24C04WP, Tuner: UV1316 / A I H-4,
T-con: 320AB02CP2LV0.3, LMX4122TO, EM636165TS-6G, MAX9590, TPS65167A, 24C64WP, A1718,
Invertor: SSI320A12, OZ9966SN, AOD486A, LT-32VE U0 082J CK x3
PSU: FEL-3226H, L6598, P13NK60ZFP, P6NK60ZFP x2, STR-A6252, L6562N
Remote control: R-55G10,
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA320AB02-W03
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 14%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 12 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 41 pins
Voltage: 12.0V
Brand: DAEWOO, Model: DLP-32C5.
Briefly from the TV: LCD, 32 ", 1366x768, 720p HD, there is PIP, sound: 20W, HDMI: 2.
The composition uses MainBoard 4859814993-04 and an LCD panel (matrix) LTA320AB02.
Power Supply Unit (PSU) FEL-3226H Power Supply.
DAEWOO DLP-32C5 LCD TV with LTA320AB02 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. 500 cd / m² screen brightness is provided by CCFL (EEFL) lamps. Maximum brightness to minimum ratio (contrast) is 800: 1. Dynamic contrast ratio of 5000: 1 is achieved by special control of the backlight. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM , NTSC. Graphic Skye processing and formation takes place in the digital signal standards 480i, 480p, 576i, 576p, 720p, 1080i.
The power of the acoustic system of sound 20 W (2x10 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The 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, HDMI x2. An output for connecting headphones is provided. A VGA (D-Sub 15) connector is used to connect a computer or laptop. This interface supports resolutions: 640x480, 800x600, 1024x768.
Overall dimensions: With a support 806x629x240 mm, Without a support 1144x746x128 mm.
Mass of the TV: 18 kg.
Attention! The panel of the LTA320AB02 LCD TV DAEWOO DLP-32C5 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
