Technical description and composition of the TOSHIBA 37RV733R TV, type of panel and applicable modules. The composition of the modules.Toshiba
Model: 37RV733R
Panel: 37 inch
T-CON: T370HW03 V.8
Power Supply (PSU): 0602D03044LF
MainBoard: PE0828 A (V28A001110A1)
IC MainBoard: TMP91FW27UG, 24C08, TC90417XBG-R, K4T1G164QF, TC58D02A3TA00, MX29LV800CBTC, BM5446, SiI9287, UPD720114, RTL8201E, D2817R
Tuner: ENG37F04KF
Control: CT-90327
Specifications 37RV733
TOSHIBA 37RV733R
General recommendations for repairing TV LCD
It is advisable to start the diagnosis of a malfunction of the TOSHIBA 37RV733R TV, like all others, with an external examination of possible changes, both external and internal elements. Any external damage can sometimes prompt the repairman to take further steps to determine the malfunction of the TV and localize the defect. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
If the TOSHIBA 37RV733R does not turn on, no control lights on the front panel light up or blink; therefore, there is a very high probability of a power module 0602D03044LF malfunction. When diagnosing and repairing the power supply 0602D03044LF, first of all, it is necessary to check the fuse, and if it breaks, the power switch and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be remembered that the N-FET keys used in flyback converters rarely fail for no reason that must be sought by checking other elements of the circuit. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
It is somewhat more difficult to look for a malfunction in the converter of the power module with an active KKM (power factor corrector).
If the TOSHIBA 37RV733R TV does not have an image, but there is sound, the malfunction should be sought in the backlight lamp power converter (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overstated ESR.
The operation of the power circuits of the inverter and the backlight in the normal mode are controlled by special protection, which is organized for fire safety, for example, to disconnect during short circuits or breaks in high-voltage connections or when the lamps are depressurized. This protection makes it difficult to diagnose and repair the inverter.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
In cases of attempts to repair the motherboard PE0828A (V28A001110A1), it is necessary to check the operability of the power supply circuits of the microcircuits and, if possible, update the software (software). When repairing an MB board, you need to check its components TMP91FW27UG, 24C08, TC90417XBG-R, K4T1G164QF, TC58D02A3TA00, MX29LV800CBTC, BM5446, SiI9287, UPD720114, RTL8201E, D2817R. Defective items should be replaced.
If there is no reception of television channels, but the TV works properly from external devices, first of all it is necessary to check the voltage of the varicaps of the tuner ENG37F04KF, which is usually within 30-33V, as well as other supply voltages at the terminals of the tuner.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Toshiba 37RV733R Service manual and schematic diagram
Service Manuals with Schematic Diagrams 172 pages 2009 on models 32RV733, 37RV733, 40RV733.
The appearance of MainBoard PE0828 is shown in the figure below:PE0828
PE0828 can be used in TVs:
TOSHIBA 32RV733R (Panel T315HW04 V4), TOSHIBA 37RV733R (Panel 37 inch), TOSHIBA 40RV733R (Panel LTA400HM02).
Key Features of the TOSHIBA 37RV733R:
Installed matrix (LCD panel) 37 inch.
The matrix control uses the Timing Controller (T-CON) T370HW03.
The necessary supply voltages for all nodes of the TOSHIBA 37RV733R TV are generated by the power module 0602D03044LF, or its analogs.
MainBoard - the main board (motherboard) is a PE0828 module, using TMP91FW27UG, 24C08, TC90417XBG-R, K4T1G164QF, TC58D02A3TA00, MX29LV800CBTC, BM5446, SiI9287, UPD720114, RTL8201E, D chips.
The ENG37F04KF tuner provides television reception and channel tuning.
Information from an alternative source:
Toshiba 37RV733R
Motherboard: PE0828A (V28A001110A1), MICON: TMP91FW27UG, EEPROM: 24C08, SoC: TC90417XBG-R, OPERATION K4T1G164QF - 2PCS, NAND FLASH: TC58D02A3TA00, NOR Flash: MX29LV7BCBBB, HDMI: MX29LV7BCBBB, HDMI: MX29LV800BBBB : UPD720114, DRIVER NEEDED: RTL8201E, PR .: D2817R, Tuner: ENG37F04KF,
T-con: T370HW03 V.8
PSU: 0602D03044LF
Remote control: CT-90327
TOSHIBA 37RV733 LCD TV with 37 "(94 cm) diagonal LCD display in 16: 9 format. 450 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. The ratio of maximum brightness to minimum (contrast) is 4500 : 1. Dynamic contrast ratio of 50,000: 1 is achieved by special control of the backlight operation.The design and technical capabilities of the TV provide for watching broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in a graphic resolution according to the standard 1080p (Full HD). or video signal can be processed by analog systems, PAL, SECAM, NTSC Image processing and generation of the digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats:.. 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, audio x3, component, SCART x2, 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.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C standards.
The mass of the TV: 16 kg.
Attention! The TOSHIBA 37RV733 LCD TV panel is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!