Technical description and composition of the SONY KDL-32R413B TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KDL-32R413B
Chassis / Version: ITC3 ME
Panel: LC320DXJ (SF) (A9)
LED backlight: 1-889-675-11 (1-734-753-11): LG Innotek 32inch WXGA DSOEM
T-CON: 6870S-1702A
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): ACDP-060S01 19.5V 3.05A Adapter
MainBoard: 1-889-355-13 - 173463313 BIL
IC MainBoard: CPU: MT5561TUHT; NAND Flash: TC58NVG1S3; EEPROM: 24C128;
Tuner: RE231ZP
Control: Remote: RM-ED062, IR: 1-889-677-11 173475511
Technical Specifications KDL-32R413B
SONY KDL-32R413B
General repair guidelines for TV LCD LED
It is advisable to start the repair of the SONY KDL-32R413B TV with a careful external examination of both internal and external elements. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. 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 significant clue in the assumptions about the causes and consequences of the malfunction.
In cases where the SONY KDL-32R413B TV does not turn on, does not respond to the remote control and buttons, any indicators on the front panel do not light up or blink, and there are no sounds and no signs of operability when turning on, the ACDP-060S01 power supply module is most likely faulty 19.5V 3.05A or there is no power to the processor on the motherboard (a typical defect in some models of SONY TVs). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
In most cases, key breakdowns in switching power supplies (SMPS) do 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 chip from the manufacturer.
If, when you turn on the TV, the image appears and immediately disappears, or is initially absent when you turn on, but the sound is there and other functions work, there is a high probability of a malfunction of the LED driver (power converter for the LED backlight panel). In such cases, the common power module is also subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the LED driver should be checked.
A malfunction in the backlight circuits often occurs due to a break in the power supply lines of the LED lines. It is necessary to disassemble the panel and check the LEDs themselves, the soldering of their conclusions, as well as the reliability of the connections in the connectors and the soldering of the conclusions of the connectors.
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.
Diagnosis and repair of the BIL motherboard is carried out by checking the operability of the stabilizers or power converters of the module chips. In some cases, a software update is required.
The malfunction of the tuner RE231ZP is established after checking the software and all the supply voltages at its terminals, including the varicap supply voltage (30-33V).
Attention to the owners! Attempts at self-repair of the SONY KDL-32R413B TV are not recommended by the manufacturer and can lead to serious negative consequences!
One of the typical SONY KDL-32R413B malfunctions often occurs in the LG panel LC320DXJ (SF) (A9).
External manifestations: there is no image, the backlight does not work. In most such cases, the LEDs turn out to be malfunctioning, which during testing turn out to be either in a cliff or with broken internal zener diodes.
LEDs must be replaced, and the maximum current from the driver should be limited to 10-20%.
More details on this page
Service manual / schematic diagram -------------------> SonyKDL-32R410B/413B/415B/430B/433B/435, KDL-32R435B/450B/453B/455B/480B/483B/485B Chassis ITC3
The appearance of MainBoard 1-889-355-13 is shown in the figure below:
1-889-355-13
1-889-355-13 can be used in TVs:
SONY KDL-32R413B (Panel LC320DXJ (SF)(A9)), SONY KDL-32R433B (Panel LC320DXJ (SF)(A9)), SONY KDL-40R483B (Panel NS4S400DND01), SONY KDL-40R453B (Panel NS4S400DND01).
The appearance of the power supply
Main features of the device SONY KDL-32R413B:
Installed matrix (LED-panel) LC320DXJ (SF) (A9).
The matrix control uses the Timing Controller (T-CON) 6870S-1702A.
To power the backlight LEDs, a converter is used, combined with the main board 1-889-355-13.
An external source of the ACDP-060S01 19.5V 3.05A Adapter type is used to power all internal components of the SONY KDL-32R413B TV.
MainBoard - the main board (motherboard) is a module 1-889-355-13, using CPU chips: MT5561TUHT; NAND Flash: TC58NVG1S3; EEPROM: 24C128; and others.
The RE231ZP tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC320DXJ-SFA9
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.15% (with Polarizer)
Contrast Ratio: 1200: 1
Display Colors: 16.7M (6-bit + Dithering)
Response Time: 8/10 (Tr / Td)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V