Technical description and composition of the TV SONY KDL-32WD603, type of panel and applicable modules. The composition of the modules.SONY LED
Model: KDL-32WD603
Panel: HV320WHB-N5K
LED backlight: SAMSUNG 2015SONY TPZ32_FCOM_A05_REV1.0_151014
T-CON: HV320WHB-N5K 47-6001516
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): ACDP-045S03 Adapter 19.5V 2.35A
MainBoard: 1-980-335-22 A2093499D (173587122) K48G-171A
IC MainBoard: MT5566BQVT
Tuner: DE243ZP
Control: RC: RMT-TX102D, IR: 1-980-483-21 (173594721), Wi-Fi: J20H090.00 1-458-900-11
Technical Specifications KDL-32WD603
SONY KDL-32WD603
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The SONY KDL-32WD603 TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
Typically, with such manifestations, the defect is caused by faulty elements in the ACDP-045S03 main power module.
The external ACDP-045S03 Adapter 19.5V 2.35A 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. Then we recommend that you measure its output voltages and, if they are absent, you should check the health of the power switches and rectifier diodes of the converters for a probable short circuit.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM), in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
Often in such cases, there is no LED backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It should be remembered that it is not possible to determine the break in the LED lines without disassembling the panels using 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. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a failure, the zener diode PN junction will either be cut off or broken into short-circuit.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the motherboard 1-980-335-22 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). When repairing an MB board, you must check its components MT5566BQVT. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If the TV works normally from external devices, but does not tune into television channels, the tuner DE243ZP may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
TV users and owners need to remember that attempts to self-repair a SONY KDL-32WD603 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
The appearance of MainBoard 1-980-335-22 is shown in the figure below:1-980-335-22
1-980-335-22 can be used in TVs:
SONY KDL-32RD433 (Panel IS6S320DNO01), SONY KDL-32WD603 (Panel HV320WHB-N5K), SONY KDL-40RD453 (Panel NS6S400DH01).
The appearance of the power supply
Main features of the device SONY KDL-32WD603:
Installed matrix (LED-panel) HV320WHB-N5K.
The matrix control uses the Timing Controller (T-CON) HV320WHB-N5K.
To power the backlight LEDs, a converter is used, combined with the main board 1-980-335-22.
An external source of the ACDP-045S03 Adapter 19.5V 2.35A type is used to power all internal components of the SONY KDL-32WD603 TV.
MainBoard - the main board (motherboard) is a module 1-980-335-22, using MT5566BQVT chips and others.
The DE243ZP tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: BOE
Model: HV320WHB-N5K
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: ADS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.1% (with Polarizer)
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 8 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V