Technical description and composition of the TOSHIBA 32TL933RB TV, type of panel and applicable modules. The composition of the modules.Toshiba
Model: 32TL933RB
Panel: LTA320HW01
T-CON: SD120PBMB4c6LV0.1
Inverter (backlight): SSL-320-3EB
PWM Inverter: SSL100SN
Power Supply (PSU): DPS-115EP A
PWM Power: STR-A6069H (Standby), 1608B (PFC), DDA014
MainBoard: PE1063 V28A001396A1
IC MainBoard: CPU: MSD388USV-V6, DRAM: K4B1G1646G-BCK0, NAND Flash: V-MNF2GB, SPI Flash: MX25L1606EM2I-12G
Tuner: ENGS7305D5F
Specifications 32TL933
TOSHIBA 32TL933RB
General recommendations for repairing TV LCD
Repair of the TOSHIBA 32TL933RB TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. In some cases, visible external damage to the elements can suggest the direction of troubleshooting and localization of the defect even before the start of the necessary measurements at the control points of the nodes of electronic circuits. 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-115EPA power supply module can be expressed in different ways, for example, the TOSHIBA 32TL933RB does not turn on at all and the control lamps on its front panel do not light up and do not blink, there are no signs of operability. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is cut off, then it is necessary to check the diodes of the rectifier bridge and the key transistor of the converter for a breakdown of the PN junctions, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Options are FMA19N60 * 2 (PFC), FM10N60 * 2, STP4NK80ZFP (Standby).
Power switches in switching power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The reason may be a malfunction of the NCP1653 (PFC), OB2262 (Standby), NCP1396A (PWM resonant) PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
If there is no image when you turn on the TOSHIBA 32TL933RB, or it appears for a second and disappears completely, but there is sound, most likely either the backlight or their power converter (inverter) are faulty. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit. When disabling protection in order to enable the diagnosis of a malfunction, special care should be taken, and after completion of all repair work, it is necessary to restore the circuit and the inverter protection for further safe operation of the TV.
In cases of attempts to repair the motherboard PE1063 V28A001396A1, it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed with local heating. If it is not possible to replace the MB board (SSB), you need to check the health of its elements - CPU: MSD388USV-V6, DRAM: K4B1G1646G-BCK0, NAND Flash: V-MNF2GB, SPI Flash: MX25L1606EM2I-12G. Defective components should be replaced.
In cases where there is no 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 ENGS7305D5F tuner. 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.
Owners and users of the TOSHIBA 32TL933RB TV must 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!
Service Manuals with Schematic Diagrams 134 pages 2012 on model ------------------> 32TL933, 40TL933, 46TL933, 32TL936, 40TL936, 46TL936, 32TL963, 40TL963, 46TL963, 32TL966, 40TL966, 46TL966, 32UL975, 40UL975, 46UL975, 23RL933, 32RL933, 40RL933, 23RL936, 32RL936, 40RL936, 23SL970, 32SL970, 40SL970, 32RL953, 40RL953, 42VL963, 47VL963, 55VL963, 42XL975, 47XL975, 55XL975, 40ML933, 46ML933.
Repair MainBoard
The appearance of MainBoard PE1063 is shown in the figure below:
PE1063
PE1063 can be used in TVs:
TOSHIBA 32TL963RB (Panel V315H3-LS5 Rev C1 . 75028476), TOSHIBA 40ML933RB (Panel LTA400HV04), TOSHIBA 40ML963RB (Panel LTA400HV04), TOSHIBA 40TL933R (Panel 40 inch), TOSHIBA 40TL933RB (Panel LTA400HV04), TOSHIBA 40TL963RB (Panel LTA400HV04 T01), TOSHIBA 46ML963RB (Panel LTA460HW04), TOSHIBA 32TL933RB (Panel LTA320HW01), TOSHIBA 46ML933RB (Panel LTA460HW04).
The appearance of the power supply
Main features of the TOSHIBA 32TL933RB device:
Installed matrix (LCD-panel) LTA320HW01.
The matrix control uses the Timing Controller (T-CON) SD120PBMB4c6LV0.1.
An SSL-320-3EB inverter is used to power the backlight, it is controlled by the SSL100SN PWM controller.
The necessary supply voltages for all nodes of the TOSHIBA 32TL933RB TV are generated by the DPS-115EP power module or its analogs using the STR-A6069H (Standby), 1608B (PFC), DDA014 microcircuits.
MainBoard - the main board (motherboard) is a PE1063 module using CPU chips: MSD388USV-V6, DRAM: K4B1G1646G-BCK0, NAND Flash: V-MNF2GB, SPI Flash: MX25L1606EM2I-12G and others.
The ENGS7305D5F tuner provides TV reception and channel tuning.
Brand: TOSHIBA, Model: 32TL933.
Briefly from the TV: LCD, LED backlight, 32 ", 1920x1080, 1080p Full HD, 3D, DVR, sound: 20W, HDMI: 4, Internet access, Smart TV.
The official Toshiba website has firmware (software update) for the models 32TL933RB (6.9.MD.1), 32TL933G (6.9.MD.1), 32TL933F (6.9.MD.1).
The composition uses MainBoard PE1063 V28A001396A1 and an LCD panel (matrix) LTA320HW01.
Power Supply Unit (PSU) DPS-115EP A Power Supply.
TOSHIBA 32TL933 LED TV with LTA320HW01 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 400 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 1,000,000: 1 is achieved by special control of the LEDs. V This model uses side lighting from Edge LEDs.
There is support for 3D images with active (shutter) technology for separating the right and left channels. The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD).
The 32TL933 is equipped with SMART software, integrated applications and the ability to work on the Internet. Connecting to the Internet can be done via Wi-Fi. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides 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, component, SCART, RGB, VGA, HDMI x4, USB x2, Ethernet (RJ-45). 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, 1920x1080.
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 85 watts.
Overall dimensions: with stand 735x507x215 mm, without stand 735x449x56 mm.
TV Weight: with stand: 10 kg, without stand: 8 kg.
Attention! The TOSHIBA 32TL933 LED TV panel LTA320HW01 is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.