Technical description and composition of the TOSHIBA 26WL65RS TV, type of panel and applicable modules. The composition of the modules.TOSHIBA LED
Model: 26WL65Rs
Panel: T260XW02 V.5 75002324
T-CON: 75009034
LED driver (backlight): VIT71014.50 LOGAH Rev: 2 (8lamp) 75008435
PWM LED driver: OZ964SN (pl20n) LM393 (8) 388622 (14) LM358 (8)
MOSFET LED driver: D454, D413
Trans LED driver: T51.0084.211L17H306H
Power Supply (PSU): PE0117 (V28A00016401). PE0117 (V28A00016401
PWM Power: LM358 (PL 8N), LM393 (PL 8N), EZA0619 (PL14N).
MOSFET Power: D454 BE6G1D, D413 BE6H2Z.
MainBoard: PE0119 V28A000163A1, PE0265 V28A00028201
IC MainBoard: FLI8548H-LF, HY5DU281622ETP-4
Tuner: ENG37A13GF
Control: CT-90253
Specifications 26WL65R
TOSHIBA 26WL65RS
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular TOSHIBA 26WL65Rs, it is advisable to start with a careful external examination of internal and external 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 indirect signs.
Sometimes the TOSHIBA 26WL65RS does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is the failure of the common PE0117 power supply module (V28A00016401). PE0117 (V28A00016401. If it is working properly, it is necessary to check the processor batteries on the SSB board (Main Board). If there are no swollen filter capacitors in the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it breaks, it is necessary first check all power semiconductor elements of the primary circuit - diodes and transistors D454 BE6G1D. D413 BE6H2Z. for the possibility of avalanche or thermal breakdown.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, PWM controller 358 EF606 (pl 8n ) 393 EZ615 (pl. 8n). . EZA0619 (pl14n)., Which can be checked only by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the TOSHIBA 26WL65RS does not have an image, but there is sound and the TV is controlled by the remote control, there may be a malfunction in the backlight circuits of the T260XW02 V.5 75002324 panel. The LEDs or the power converter - LED driver may be malfunctioning. 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 LED driver, and check the LEDs, connecting obviously known good diagnostics.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the rations of their terminals, as well as the reliability of the connections in the connectors and rations of the terminals.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
In cases of attempts to repair the motherboard Signal-PE0265 (V28A00028201). SYS-PE0119 (V28A000163A1), it is necessary to check the operability of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
It should be remembered! Attempts to repair the TOSHIBA 26WL65RS TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Toshiba 26WL65R. Main PE0081
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Toshiba 26WL65, 26WL66. Main PE0119
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Toshiba 26WL66E
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PE0117, PE0216, PE019 Toshiba 26WL66E, 26WL66T, 26WL66R, 26WL66A, 32WL66E, 32WL66T, 32WL66R, 32WL66A, 37WL66E, 37WL676T, 37WL66R. PE0117 - PE0216 - PE019
The appearance of MainBoard PE0119 is shown in the figure below:PE0119
PE0119 can be used in TVs:
TOSHIBA 26WL65Rs (Panel T260XW02 V.5 75002324), TOSHIBA 26WL66Zs (Panel T315XW01 V5), TOSHIBA 32WL66R (Panel T315XW01 V.5), TOSHIBA 32WL66Rs (Panel V315XW02 V.1), TOSHIBA 47WL66Rs (Panel V470H1-L02 Rev.C4), TOSHIBA 32WL65R 32WL65Rs (Panel T315XW02 V.1).
The appearance of the power supply
Key Features of the TOSHIBA 26WL65RS:
Installed matrix (LED panel) T260XW02 V.5 75002324.
The matrix control uses the Timing Controller (T-CON) 75009034.
The LED driver VIT71014.50 is used to power the backlight LEDs, it is controlled by the OZ964SN (pl20n) LM393 (8) 388622 (14) LM358 (8) PWM controller. The transformer T51.0084.211L17H306H is installed in the LED driver converter. As power elements of the LED driver, keys of the type D454, D413 are used.
The necessary supply voltages for all nodes of the TOSHIBA 26WL65RS TV are generated by the PE0117 power module or its analogs using microcircuits LM358 (pl 8n), LM393 (pl 8n), EZA0619 (pl14n). and power switches type D454 BE6G1D, D413 BE6H2Z ..
MainBoard - the main board (motherboard) is a PE0119 module, with the use of chips FLI8548H-LF, HY5DU281622ETP-4 and others.
The ENG37A13GF tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T260XW02 V5
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: VA, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 15/5 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 8 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V