Technical description and composition of the SONY KDL-32W653A TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KDL-32W653A
Chassis / Version: RB1G
Panel: T320HVF01.0
LED backlight: 74.32T35.002-1-DX1 13413D = T32-30-R & T32-30-L
T-CON: T320HVN04.0 XR CTRL, 32T37-S00
LED driver (backlight): ST320AU-4S01 REV1.0
PWM LED driver: BD9422EFV
MOSFET LED driver: STU30N01, SDB10150DI
Power Supply (PSU): Adapter 19.5V
MainBoard: 1-888-390-12 (173427812)
IC MainBoard: CXD4748GB, CXD4743GB, H5TC4G63MFR, TC58NVG3S0FTAI0
Tuner: 1-888-391-12
Control: IR: 1-887-520-31, WiFi: J20H069 MCLJ20H069 2878D-J20H069
Technical Specifications KDL-32W653A
SONY KDL-32W653A
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The SONY KDL-32W653A TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or flash, the TV does not respond to the remote control and control buttons.
Most often, with such manifestations, the main power module - Adapter - turns out to be faulty.
The external adapter 19.5V power supply is not always subject to repair, especially since the owner can purchase it independently. But, in some cases, it makes sense to open it and eliminate the simple typical defects inherent in converters in pulsed sources. It is necessary to measure the output voltage of 19.5V, and in case of its absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit probability.
In case of breakdowns in the secondary circuits, the converter can emergencyly operate in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks, sometimes the resistor is a current sensor at the source of the power switch.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. The PWM controller chip (PWM) can also cause a breakdown of the converter key and is checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
In most cases, the malfunction is caused by the lack of a backlight display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 1-888-390-12 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - CXD4748GB, CXD4743GB, H5TC4G63MFR, TC58NVG3S0FTAI0 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltages at the terminals of the tuner 1-888-391-12. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
It should be remembered! Attempts to independently repair the SONY KDL-32W653A 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-serviceability of the device!
The appearance of MainBoard 1-888-390-12 is shown in the figure below:1-888-390-12
1-888-390-12 can be used in TVs:
SONY KDL-42W654A (Panel T420HVF04.3), SONY KDL-24W605A (Panel SYV2421-01), SONY KDL-32W603A (Panel T320XVF05.0), SONY KDL-32W653A (Panel T320HVF01.0).
Main features of the device SONY KDL-32W653A:
Installed matrix (LED-panel) T320HVF01.0.
The matrix control uses the Timing Controller (T-CON) T320HVN04.0.
The LED driver ST320AU-4S01 is used to power the backlight LEDs, it is controlled by the BD9422EFV PWM controller. As power elements of the LED driver, keys of the STU30N01, SDB10150DI type are used.
To power all the internal components of the SONY KDL-32W653A TV, an external adapter type 19.5V is used.
MainBoard - the main board (motherboard) is a module 1-888-390-12, using microcircuits CXD4748GB, CXD4743GB, H5TC4G63MFR, TC58NVG3S0FTAI0 and others.
The tuner 1-888-391-12 provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T320HVF01.0
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Display Colors: 1.06B (8-bit + FRC)
Frequency: 120Hz
Lamp Type: WLED