Technical description and composition of the TOSHIBA 26AV605PR TV, type of panel and applicable modules. The composition of the modules.Toshiba
Model: 26AV605PR
Panel: LTA260AP02 004
T-CON: 260AP02C2LV0.2, LMX6322T1, TPS65160A, AG32AE2, i7822, 416WP, 2042AF
Inverter (backlight): SSI260_4UAO REV0.5
PWM Inverter: SEM2006
MOSFET Inverter: STV411D
Power Supply (PSU): 715G3370-1 E250 7 75015110 PC BOARD ASSY, POWER, G3370-C-X-X-1-081219, ADTV82412AC7
PWM Power: A6069H
MainBoard: 715G3385-1 E200 13 75015215 PC BOARD ASSY, MAIN, 26AV605PB, CBPFR3HBA2
IC MainBoard: 24C32WP, MST9A885GL-LF, HY5DU2B1622FTP-4
Tuner: TAFT-S710D
Control: CT-90326
Specifications 26AV605P
TOSHIBA 26AV605PR
General recommendations for repairing TV LCD
TOSHIBA 26AV605PR TV, like any other, it is advisable to start repairing it by inspecting the internal and external visible physical visual changes. It often happens that some damage to elements or connections will help determine the correct direction in troubleshooting and localizing a defect. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a hint in the assumptions about the causes and consequences of the malfunction.
If the TOSHIBA 26AV605PR 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 supply module failure 715G3370-1 E250 7 75015110 PC BOARD ASSY, POWER, G3370-C-X-X-1-081219, ADTV82412AC7. In this case, first of all, it is necessary to check the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the N-FET converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
In most cases, a breakdown of the N-Fet converter key does not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM A6069H from the manufacturer.
When using a power factor correction unit (PFC) in the power modules, troubleshooting becomes somewhat more complicated and requires additional experience and knowledge of their operation.
If the TOSHIBA 26AV605PR does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction of the display backlight, or their power converter - inverter. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the inverter itself, including in the secondary rectifier of the main PSU.
When repairing the SSI260_4UAO REV0.5 inverter, it is often necessary to disable the protection for diagnostics, which, for the purpose of fire safety, turns it off in any emergency situation, for example, during a malfunction or uneven wear of the lamps, which makes it difficult to find a defect.
In such cases, the risk of failure of the power elements of the inverter is most likely, and special care is required during work, and after their completion, it is necessary to restore the protection circuit for further safe operation of the TV by the owner in normal mode.
In cases of attempts to repair the motherboard 715G3385-1 E200 13 75015215 PC BOARD ASSY, MAIN, 26AV605PB, CBPFR3HBA2, it is necessary to check the operation of the power supply circuits of the microcircuits and, if possible, 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 24C32WP, MST9A885GL-LF, HY5DU2B1622FTP-4.
Before changing the TAFT-S710D tuner, if it is not possible to tune to television channels, make sure that there are supply voltages, including varicap power (30-33V), which must be measured at the corresponding tuner pins.
Attention to users! Self-repair of the TOSHIBA 26AV605PR TV without the appropriate qualifications and experience can lead to its complete non-repairability!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Toshiba 26AV605PR
Service Manuals with Schematic Diagrams 64 pages on models 26AV615DB, 26AV605PB, 26AV605PR, 32AV615DB
The appearance of the MainBoard 715G3385-1 is shown in the figure below:715G3385-1
715G3385-1 can be used in TVs:
TOSHIBA 26AV605PR (Panel LTA260AP02 004), TOSHIBA 32AV605PR (Panel LK315LA51 75014913), TOSHIBA 32AV613DG (Panel LC320WXN-SBA1), TOSHIBA 37AV605P 37AV605PR (Panel LC370WXN (SB)(B1)).
Main features of the TOSHIBA 26AV605PR device:
Installed matrix (LCD-panel) LTA260AP02 004.
The matrix control uses the Timing Controller (T-CON) 260AP02C2LV0.2.
To power the backlight, an SSI260_4UAO inverter is used, it is controlled by the PWM controller SEM2006. As power elements of the inverter, keys of the STV411D type are used.
The necessary supply voltages for all nodes of the TOSHIBA 26AV605PR TV are generated by the 715G3370-1 power module or its analogs using A6069H microcircuits.
MainBoard - the main board (motherboard) is a 715G3385-1 module, using 24C32WP, MST9A885GL-LF, HY5DU2B1622FTP-4 chips and others.
The TAFT-S710D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA260AP02
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: APVA, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 14%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
TOSHIBA 26AV605P LCD TV with 26 "(66 cm) LCD display, 16: 9 format diagonal LCD display. 450 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio of 50,000: 1 is achieved by special control of operation It is possible to 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 processing and digital signal generation t in the standards 480i, 480p, 576i, 576p, 720p, 1080i.
The power of the speaker system is 40 watts. 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 x3. 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, 1360x768.
The power consumed by the TV in the operating mode from the network is 120 watts.
Overall dimensions: with stand 667x494x240 mm, without stand 667x448x90 mm.
TV Weight: with stand: 10.5 kg, without stand: 9.4 kg.
Attention! The TOSHIBA 26AV605P LCD TV panel LTA260AP02 004 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!