Technical description and composition of the DAEWOO DLP-3212 TV, panel type and applicable modules. The composition of the modules.DAEWOO
Model: DLP-3212
Chassis / Version: SL-210P
Panel: T315XW01 V1 // T315XW02 V.0
T-CON: T315XW02 V0; AUO-016K1, 7642ILTZ, 24C32
Inverter (backlight): DARFON 4H.V1448.291 / B1
PWM Inverter: OZ964SN
Power Supply (PSU): DEP32-200B
PWM Power: F9222L, FA5501A (PFC), VIPer22A (Standby)
MOSFET Power: 2SK3681 (PFC)
MainBoard: SL-210P DLP-2612A PSB / SD2343
IC MainBoard: MSP3410G B8 V3 TDA4780 CXA1855Q VPC3230D-QA-C5 MST9883CR SDA5550M SII1169CTU 24LC16BT
Tuner: FQ1216ME / IH-S
Control: R-50K18, R50K14
Technical Specifications DLP-3212
DAEWOO DLP-3212
General recommendations for repairing TV LCD
Possible malfunctions
- DAEWOO DLP-3212 TV does not turn on, does not respond to the remote control and control panel buttons, indicators do not light up and do not blink.
With such manifestations, the DEP32-200B power module usually fails. It is necessary to measure the secondary output voltages, and in case of their absence, check the serviceability of the power switches (2SK3681 (PFC)) of the converters 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 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) F9222L, FA5501A (PFC), VIPer22A (Standby). 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 TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the SL-210P 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). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements MSP3410G B8 V3 TDA4780 CXA1855Q VPC3230D-QA-C5 MST9883CR SDA5550M SII1169CTU 24LC16BT. BGA chip malfunctions are usually easy to detect by warming up.
If there is no reception of television channels, but the TV works properly from external devices, first of all you need to check the voltage of the tuner FQ1216ME / IH-S and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
TV users and owners need to remember that attempts to self-repair a DAEWOO DLP-3212 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> DAEWOO DLP-2612, DLP-3212 chassis SL-210P
DAEWOO DLP-3212 - Chassis: SL-210P, Cpu: SDA5550M, SPI Flash: F49L040A, Eeprom: 24C16, MSP3410G B8 V3, Audio amp: TDA7480.
The appearance of the MainBoard SL-210P is shown in the figure below:SL-210P
PSU Advanced
The DLP-3212 TV is equipped with a DEP32-200B power module using the PFC (Power Factor Correction) scheme acting as an active filter to eliminate the higher harmonic components of the current consumption. The boost converter based on the FA5501A PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes when 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 DAEWOO DLP-3212 device:
Installed matrix (LCD panel) T315XW01 V1 or T315XW02 V.0.
The matrix control uses the Timing Controller (T-CON) T315XW02.
A DARFON inverter is used to power the backlight, controlled by the OZ964SN PWM controller.
The necessary supply voltages for all nodes of the DAEWOO DLP-3212 TV are generated by the DEP32-200B power module or its analogs using F9222L, FA5501A (PFC), VIPer22A (Standby) microcircuits and 2SK3681 (PFC) type power switches.
MainBoard - the main board (motherboard) is an SL-210P module using MSP3410G B8 V3 TDA4780 CXA1855Q VPC3230D-QA-C5 MST9883CR SDA5550M SII1169CTU 24LC16BT and others.
The FQ1216ME / IH-S tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T315XW01 V1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: PMVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare
Brightness: 550 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 12 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
Brand: DAEWOO, Model: DLP-3212.
Shortly from the TV: LCD, 32 ", sound: 16 W, DVI.
The composition includes MainBoard SL-210P DLP-2612A PSB / SD2343 and an LCD panel (matrix) T315XW01 V1, or T315XW02 V.0.
Power Supply Unit (PSU) DEP32-200B Power Supply.
DAEWOO DLP-3212 LCD TV with T315XW01 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. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC.
The power of the sound system 16 W (2x8 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, SCART x2, RGB.
Overall dimensions: 990x530x130 mm.
The mass of the TV: 17.2 kg.
Attention! The T315XW01 V1 panel of a DAEWOO DLP-3212 LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
