Technical description and composition of the SONY KDL-40R353C TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KDL-40R353C
Chassis / Version: BE2_A1
Panel: NS4S400DND11
LED backlight: 2013SONY40A 3228 05 REV.0; 1-893-802-11, 173522611; 1-893-803-11, 173522611
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): ACDP-060S02 Adapter 19V 3.05A
MainBoard: 1-894-867-11 - 173568511
IC MainBoard: Mediatek MT5565 CQYG
Tuner: DE241TP H5G018B
Control: RM-ED062, IR: 1-893-522-11, 173510611
Technical Specifications KDL-40R353C
SONY KDL-40R353C
General repair guidelines for TV LCD LED
If the TV does not turn on, no control lights are on or blinking, there are no sounds when you turn on, and there is not the slightest sign of operability - the most likely malfunction is in the power module. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If the SONY KDL-40R353C does not have an image, but there is sound, there may be a malfunction of the backlight LEDs of the NS4S400DND11 panel or their power converter - LED driver.
In case of breaks in the LED circuit, a complete disassembly of the panel is required, the LEDs are checked for an open circuit, as well as the reliability of the connections in the connectors and rations of the terminals.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
Repair or diagnostics of the motherboard 173568511 1-894-867-11 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, you should update the software (software).
The malfunction of the tuner DE241TP H5G018B is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Attention to the owners! Attempts at self-repair of the SONY KDL-40R353C TV are not recommended by the manufacturer and can lead to serious negative consequences!
The appearance of MainBoard 1-894-867-11 is shown in the figure below:1-894-867-11
1-894-867-11 can be used in TVs:
SONY KDL-32R303C (Panel IS4S320DND11), SONY KDL-40R353C (Panel NS4S400DND11).
The appearance of the power supply
Main features of the device SONY KDL-40R353C:
Installed matrix (LED panel) NS4S400DND11.
To power the backlight LEDs, a converter is used, combined with the main board 1-894-867-11.
To power all the internal components of the SONY KDL-40R353C TV, an external source of the ACDP-060S02 Adapter 19V 3.05A type is used.
MainBoard - the main board (motherboard) is a module 1-894-867-11, using the Mediatek MT5565 CQYG chips and others.
The DE241TP H5G018B tuner provides television reception and channel tuning.