Technical description and composition of the TOSHIBA 32XV635DR TV, type of panel and applicable modules. The composition of the modules.Toshiba
Model: 32XV635DR
Panel: T315HW02 V.5
T-CON: T315HW02 V5; 31T06-C04
Power Supply (PSU): DPS-219DP P / N: V71A00012800
PWM Power: DAP015D, 1607B (PFC), A6069H
MOSFET Power: 1K23AH, 2SK3569, 10K60
MainBoard: PE0693 V28A000966B1
IC MainBoard: TMP91FW27UG, NAND: HY27US08121B, DDR: H5PS5162FFR; TAS5705
Tuner: ENG37F01KF
Specifications 32XV635D
TOSHIBA 32XV635DR
General recommendations for repairing TV LCD
Repair of electronic devices, including the TOSHIBA 32XV635DR TV, it is advisable to start with an external examination of its external and internal elements. Sometimes, based on 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 are taken. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external signs of certain malfunctions.
Malfunctions of the DPS-219DP power module can be expressed in different ways, for example, the TOSHIBA 32XV635DR does not turn on at all and the control lights on its front panel do not light up and do not blink, there are no signs of operability. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the rectifier bridge of the mains voltage and the power key (s) of the converter 1K23AH, 2SK3569, 10K60 The complete inoperability of the power supply unit can be caused by a short circuit in the power elements in the primary circuit, followed by an open fuse, or a short circuit in the loads.
The reasons for the breakdown of the power switch in switching power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller DAPO15D, 1607B (8), A6069H, or breaks resistors in its harness.
If the TOSHIBA 32XV635DR does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors. It should be remembered that when protection is disabled in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is necessary to restore all standard converter protection circuits.
Repair or diagnostics of the motherboard PE0693 V28A000966B1 should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, you should update 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 TMP91FW27UG, NAND: HY27US08121B, DDR: H5PS5162FFR; TAS5705. BGA chip malfunctions are usually easy to detect by warming up.
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltage at the terminals of the tuner ENG37F01KF. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
Attention! Users and owners of 32XV635DR televisions who do not have the appropriate qualifications, knowledge and experience are strongly advised against self-repair attempts in order to avoid negative consequences that could lead to complete non-repairability of the device.
The appearance of MainBoard PE0693 is shown in the figure below:PE0693
PE0693 can be used in TVs:
TOSHIBA 42ZV635DR (Panel LC420WUD (SB) (M2)), TOSHIBA 32XV635DR (Panel T315HW02 V.5).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the DPS-219DP module provides for the use of a Power Factor Correction unit. The PFC circuit is a flyback converter based on the 1607B 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.
Key Features of the TOSHIBA 32XV635DR:
Installed matrix (LCD panel) T315HW02 V.5.
The matrix control uses the Timing Controller (T-CON) T315HW02.
The necessary supply voltages for all nodes of the TOSHIBA 32XV635DR TV are generated by the DPS-219DP power module or its analogs using DAP015D, 1607B (PFC), A6069H microchips and power switches of the type 1K23AH, 2SK3569, 10K60.
MainBoard - the main board (motherboard) is a PE0693 module using TMP91FW27UG chips, NAND: HY27US08121B, DDR: H5PS5162FFR; TAS5705 and others.
The ENG37F01KF tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T315HW02 V5
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: 500 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 120Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (4 ch, 10-bit), 92 pins
Voltage: 12.0V
Brand: TOSHIBA, Model: 32XV635D.
Short from TV: LCD, 32 ", 1920x1080, 1080p Full HD, sound: 50W, HDMI connectors: 4.
For the 32XV635D model, the official website has firmware (software update) version 2.1.77.2.
The composition uses MainBoard PE0693 V28A000966B1 and an LCD panel (matrix) T315HW02 V.5.
Power Supply Unit (PSU) DPS-219DP P / N: V71A00012800 Power Supply.
TOSHIBA 32XV635D LCD TV with T315HW02 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. 500 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio of 50,000: 1 is achieved by special operation control The design and technical capabilities of the TV include viewing programs and movies 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. aficheskaya processing and the formation of the digital signal is in 480i standards, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats:. MP3, MPEG4, JPEG.
The power of the sound system 50 W (2x25 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 x4, USB. An output for connecting headphones is provided. 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, 1280x1024, 1360x768.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C standards.
The power consumed by the TV in the operating mode from the network is 107 watts.
Overall dimensions: with stand 786x574x266 mm, without stand 786x525x86 mm.
TV Weight: with stand: 14.6 kg, without stand: 12.9 kg.
Attention! The T315HW02 V.5 panel of the TOSHIBA 32XV635D 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!