Technical description and composition of the SONY KDL-32R433B TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KDL-32R433B
Chassis / Version: ITC3 ME
Panel: LC320DXJ (SF) (A9) // IS4S320DNG01
LED backlight: LG innotek 32inch WXGA NDSOEM WA / B Type Rev0.0 // 1-889-675-12 (173475312)
T-CON: LC320DXJ-SFA9 6870S-1702A
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): ACDP-060S01 19.5v 3a Adapter
MainBoard: 1-889-355-13 - 173463313 - Y200A900C BIL // 1-889-355-11 Y200A890A 173463311
IC MainBoard: CPU: MT5561TUHT; NAND Flash: TC58NVG1S3; EEPROM: 24C128;
Tuner: RE231ZP
Control: RM-ED062, IR: 1-889-677-11 173475511
Technical Specifications KDL-32R433B
SONY KDL-32R433B
General repair guidelines for TV LCD LED
Repair of all electronic devices, including the TV SONY KDL-32R433B, it is advisable to start with an external examination of its external and internal elements. Using visible changes in the state of components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before the necessary measurements are taken. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
In the absence of any signs of operability, when the SONY KDL-32R433B does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the power supply module ACDP-060S01 19.5v 3a of the TV. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
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 checked by replacing it with a known good one.
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.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
In the event of a malfunction on the BIL motherboard, first of all, check the operability of all stabilizers or power converters of the microcircuits and, if necessary, update the software (software).
One of the typical failures of the SONY KDL-32R433B often occurs in the LED panel LC320DXJ (SD) (A9) // IS4S320DNG01 manufactured by LG.Owners and users of the SONY KDL-32R433B TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
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 -------------------> Sony KDL-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-32R433B:
Installed matrix (LED-panel) LC320DXJ (SF) (A9) or IS4S320DNG01.
The matrix control uses the Timing Controller (T-CON) LC320DXJ-SFA9.
To power the backlight LEDs, a converter is used, combined with the main board 1-889-355-13.
An external source such as ACDP-060S01 19.5v 3a Adapter is used to power all internal components of the SONY KDL-32R433B 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
