Technical description and composition of the SONY KDL-32W603A TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KDL-32W603A
Chassis / Version: BLE
Panel: T320XVF05.0
LED backlight: 74.32T35.002-1-DX1 13717N = T32-30-R and T32-30-L
T-CON: T320XVN02.5 CTRL BD, 32T24-C09, T320XVN02
LED driver (backlight): ST320AU-4S01 REV1.0
Power Supply (PSU): ACDP-085N02 Adapter 19.5V 4.25A
MainBoard: 1-888-390-12 173427812
IC MainBoard: CPU: CXD4748GB, CXD4743GB; DRAM: H5TC4G63MFR; NAND Flash: TC58NVG3S0FTAI0
Tuner: 1-888-391-12
Control: ACDP-085N02, IR: 1-887-520-31, Wi-Fi: J20H069 MCLJ20H069 2878D-J20H069
Technical Specifications KDL-32W603A
SONY KDL-32W603A
General repair guidelines for TV LCD LED
Possible malfunctions
- The SONY KDL-32W603A TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or flash, and the TV does not react to the remote control and control buttons.
In most of these cases, the main switching power supply, the ACDP-085N02 adapter, is faulty.
The external ACDP-085N02 Adapter 19.5V 4.25A 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 the probability of breakdown in semiconductor PN junctions.
In the event of breakdowns in the secondary circuits, the converter may emergencyly operate in the short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
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 chip can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In most of these cases, a malfunction is detected in the nodes and backlight elements of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, it 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). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: CXD4748GB, CXD4743GB; DRAM: H5TC4G63MFR; NAND Flash: TC58NVG3S0FTAI0 and replace failed chips with new ones. Some malfunctions can be associated with the use of BGA soldering technologies in modern Main Board. Typically, such defects are detected by local heating of the chip.
Before replacing the tuner 1-888-391-12, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention! For users and owners of KDL-32W603A TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability 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).
The appearance of the power supply
Main features of the device SONY KDL-32W603A:
Installed matrix (LED-panel) T320XVF05.0.
The matrix control uses the Timing Controller (T-CON) T320XVN02.5.
The LED driver ST320AU-4S01 is used to power the backlight LEDs.
To power all the internal components of the SONY KDL-32W603A TV, an external source such as ACDP-085N02 Adapter 19.5V 4.25A is used.
MainBoard - the main board (motherboard) is a 1-888-390-12 module, using CPU chips: CXD4748GB, CXD4743GB; DRAM: H5TC4G63MFR; NAND Flash: TC58NVG3S0FTAI0 and others.
The tuner 1-888-391-12 provides reception of television programs and tuning to channels.
