Technical description and composition of the SONY KDL-32W4000 TV, panel type and applicable modules. The composition of the modules.SONY
Model: KDL-32W4000 KDL-32W4000K
Chassis / Version: EG1L
Panel: LTY320HA01 // T315XW02 V.C
T-CON: THF9301_LMV414T1, EM638325TS-76, 24C64W
Inverter (backlight): SSI320-16A01 rev: 0.6
PWM Inverter: OZ9966SN (24), S393745J, S933_807J
MOSFET Inverter: APM4008N
Trans Inverter: U320SS 07CL U320SS084E
Power Supply (PSU): DPS-205CP - 147409911 G1D (32)
PWM Power: DLA001D, L6562D (PFC), DAS001
MOSFET Power: APM008N, K3569, P20NM60PF
MainBoard: 1-875-656-12 - A-1363-835-A - E1519728K
IC MainBoard: VST8398P E5116AJBG D61300F1 220 TPS51124, TPC8109
Tuner: BTD-HF411T (859764100)
Technical Specifications KDL-32W4000
SONY KDL-32W4000
General recommendations for repairing TV LCD
It is reasonable to start the repair of the SONY KDL-32W4000 TV with a careful external inspection before proceeding to the diagnosis of the malfunction. It is advisable to carefully internal and external components. It often happens that some damage to elements or connections will help determine the correct direction of troubleshooting and localization of the defect. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
In the case when the KDL-32W4000 does not turn on, does not respond to the remote control and the front panel buttons, does not blink bulbs and does not show any signs of operability, most likely in this case the G1D (32) DPS205CP power module is faulty. If the mains fuse is broken in the power supply, in most cases a breakdown of the power switch APM008N, K3569, P20NM60PF is detected, which can be integrated with a PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
The reasons for the breakdown of the power switch of the flyback converter of the power module can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller DLA00LD_91XU803, L65620, DAS001 or broken resistors in its bundle.
When using a power factor correction unit (PFC) in the power modules, troubleshooting becomes somewhat more complicated and requires additional experience and knowledge of the device for their operation.
If the SONY KDL-32W4000 TV does not have an image, but there is sound, the malfunction should be sought in the power converter of the backlight (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the BP (power supply) for an overstated ESR.
When repairing the SSI320-16A01 rev: 0.6 inverter, it is often necessary to disable protection for diagnostics, which, for fire safety reasons, turns it off in any emergency situation, for example, in the event of a malfunction or uneven wear of the lamps, which makes it difficult to find a defect.
In such cases, special care should be taken during diagnostics, and after completion of all repair work, it is necessary to restore the circuit and the inverter protection for further safe operation of the TV.
If the motherboard CXD1978R is faulty, first of all it is necessary to check all the linear power regulators of its chips and, if necessary, update the software. Sometimes you can check the health of MB only by replacement. In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - VST8398P E5116AJBG D61300F1 220 TPS51124, TPC8109.
Before replacing the BTD-HF411T tuner (859764100), if there is no tuning for the channels, you must first check the power supply voltage at its terminals, including the power supply of varicaps (30-33V).
Once again, remind users! Attempts to self-repair a SONY KDL-32W4000 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual / schematic diagram -------------------> Sony KDL-32/40/46/52W4000, KDL-32/40/46/52W4220 chassis EG1L
PSU / schematic diagram -------------------> DPS-205CP G1D(32) Power Supply
The appearance of MainBoard 1-875-656-12 is shown in the figure below:1-875-656-12
1-875-656-12 can be used in TVs:
SONY KDL-32W4000 (Panel LTY320HA01), SONY KDL-40W4000 (Panel LTY400HA5).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the DPS-205CP module provides for the use of a Power Factor Correction unit. The PFC circuit is a flyback converter based on the L6562D PWM controller. The reactance of an electrolytic capacitor of a line filter at a frequency of 50-60 Hz is usually not more than 20-30 ohms and its charge directly from the network through open diodes could reach tens of amperes per pulse if no filtering were applied.
As a result of the PFC conversion, an increased voltage on the capacitor (about 380V) cannot directly open the rectifier diodes, on the anode of which the voltage will always be slightly less (about 300V) and then its charging current will always be limited by the elements of the PWM controller. As a result, the envelope of the high-frequency pulses of the consumed current will repeat the shape and phase of the input sinusoidal voltage. The presence of an increased voltage (+ 380V) on the network capacitor indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the device SONY KDL-32W4000:
Installed matrix (LCD panel) LTY320HA01 or T315XW02 V.C.
The matrix control uses the Timing Controller (T-CON) THF9301_LMV414T1.
The SSI320-16A01 inverter is used to power the backlight, it is controlled by the OZ9966SN (24) PWM controller, S393745J, S933_807J. The transformer U320SS 07CL U320SS084E is installed in the inverter converter. As power elements of the inverter, keys of the APM4008N type are used.
The necessary supply voltages for all nodes of the SONY KDL-32W4000 TV are generated by the DPS-205CP power module, or its analogs, using DLA001D, L6562D (PFC), DAS001 microchips and power switches of the APM008N, K3569, P20NM60PF type.
MainBoard - the main board (motherboard) is a module 1-875-656-12, using chips VST8398P E5116AJBG D61300F1 220 TPS51124, TPC8109 and others.
The BTD-HF411T (859764100) tuner provides TV reception and channel tuning.
Information from an alternative source:
SONY KDL-32W4000
Panel Type (Matrix) :, LTY 320HA01
Motherboard :, MICRONAS VST8398P(A4 H802 80059.2.000.1591X 8136)-(BGA), NEC D61300F1 220 (BGA), E5116AJBG-(BGA) - 2 pc., HYB18NC256160BF-(BGA) - 2 pc., K9F5608U0D, 24C32WP - 2 pc, 24C02 - 4 pc.,
Others:, MB90F334A, CXB1444R, VC4066, TPC8109, tuner: BTD-HF411T (859764100), mic in the tuner: CXD1978R pay LVDC:, WISEVIEW THF9301_LMV414T1, EM638325TS-76, 24C64W_IC3, 39L50_6KDDN815_IC13, 24007IRZ_IC321 Inverter :, Trans - U320SS084E, Q201-Q202-Q101-Q102_APM008N, IC001_0Z9966SN, IC002_S933_807J, Q003_DA-RC
Power Supply::, Q901_C3209, Q602-Q601_K3569, Q800_P20NM60PF, IC601_DLA00LD_91GR811, IC802_DAS001_EZ811, --------_J626DD_EZ818
Additional technical information about the panel:
Brand: S-LCD
Model: LTY320HA01
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
