Technical description and composition of the SONY KDL-52X3500 TV, panel type and applicable modules. The composition of the modules.SONY
Model: KDL-52X3500
Chassis / Version: FIX2
Panel: LTZ520HC01
T-CON: 1-873-860-11 (172868211) sticker A1257224B EM6A932OBI-5MG
Inverter (backlight): SSB520HA24- LU_LL_RU_RL
PWM Inverter: THC63LVDI04S
Power Supply (PSU): 1-873-814-12 A1362552A GF2, DF5: 1-873-819-12 A1253588B, DF4: 1-873-818-12 A125358713
PWM Power: MIP2H2, L6562N (PFC), CXD9841P
MainBoard: 1-873-983-11 FB2 Board, 1-873-950-11, 1-873-954-11
IC MainBoard: MB91305, S29AL016D7OTFI01, CXA2240AR, SIL9151CLU
Tuner: BTD-HF401Z (01) 8-597-613-01 BI7K19
Technical Specifications KDL-52X3500
SONY KDL-52X3500
General recommendations for repairing TV LCD
Repair SONY KDL-52X3500 must begin with the diagnosis of the malfunction and a thorough inspection of its external and internal components, including the case. Often, for certain external signs, the repairman can draw some conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
Malfunctions of the power supply module GF2 1-873-814-12 A1362552A, DF5: 1-873-819-12 A1253588B, DF4: 1-873-818-12 A125358713 can be expressed differently, for example, SONY KDL-52X3500 does not turn on at all and the control the bulbs on its front panel do not light up and do not blink, there are no signs of operability. In this case, the diagnosis and repair of the common power supply should always be started by checking the mains fuse. When it breaks, it is advisable to check for a breakdown, first of all, all power semiconductor elements of the converter and the rectifier diode bridge of the network, as well as the large electrolytic filter capacitor of the network rectifier and the key transistor.
The reasons for the breakdown of the power switch of the flyback converter of the power supply 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 MIP2H2, L6562N, CX09841P PWM controller circuit or broken resistors in its bundle.
Diagnostics of power modules with a Power Factor Corrector (CMC) is somewhat more complicated and requires a more detailed approach.
If the SONY KDL-52X3500 does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors.
Diagnosis and repair of the inverter is often complicated by the organization of special protection circuits, which is necessary for fire safety and turns off the inverter in any emergency situation, for example, when the lamps are worn or depressurized. Often, to localize a defect, its blocking is required.
In such cases, the risk of failure of the power elements of the inverter is most likely, and special care is required during work, and after their completion, it is necessary to restore the protection circuit for further safe operation of the TV by the owner in normal mode.
Diagnosis and repair of the C1 motherboard 1-873-950-11, 1-873-983-11, 1-873-954-11 is carried out by checking the performance of power stabilizers or updating the software (software). In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its chips MB91305, S29AL016D7OTFI01, CXA2240AR and other possible faulty components.
If the TV works normally from external devices, but does not tune into television channels, the tuner 1-873-956-11 BTD-HF401Z (01) 8-597-613-01 BI7K19 may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Remember! Attempts to self-repair by users of the SONY KDL-52X3500 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
Service Manual with Schematic Diagram 256 pages 2007 for the KDL-40X3500, KDL-46X3500, KDL-52X3500
Service manual / schematic diagram --------------> Sony KDL-40/46/52X3500 chassis FIX2
The appearance of MainBoard 1-873-983-11 is shown in the figure below:1-873-983-11
1-873-983-11 can be used in televisions:
SONY KDL-40X3500 (Panel LTY400HC01), SONY KDL-46X3500 (Panel LTY460HH-LH2), SONY KDL-52X3500 (Panel LTZ520HC01), SONY KLV-46X350A (Panel LTY460HH-LH2), SONY KDL-46X3000 (Panel LTY460HH-LH2).
PSU Advanced
The KDL-52X3500 TV is equipped with a GF2 power module using the PFC (Power Factor Correction) scheme acting as an active filter to eliminate the higher harmonic components of the current consumption. The boost converter based on the L6562N PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes, when the reactance (about 15-30 ohms at a frequency of 50 Hz) determines the charge current. As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
The appearance of the power supply
Main features of the device SONY KDL-52X3500:
Installed matrix (LCD panel) LTZ520HC01.
The matrix control uses the Timing Controller (T-CON) 1-873-860-11.
The SSB520HA24- inverter is used to power the backlight, controlled by the THC63LVDI04S PWM controller.
The necessary supply voltages for all nodes of the SONY KDL-52X3500 TV are generated by the power module 1-873-814-12, or its analogs using microchips MIP2H2, L6562N (PFC), CXD9841P.
MainBoard - the main board (motherboard) is a module 1-873-983-11, using microchips MB91305, S29AL016D7OTFI01, CXA2240AR, SIL9151CLU and others.
The tuner BTD-HF401Z (01) 8-597-613-01 BI7K19 provides the reception of television programs and tuning to channels.
Information from an alternative source:
SONY KDL-52X3500 Same chassis: SONY KDL-40X3500
Panel Type (Matrix): LTZ520HC01
Motherboard:1-873-950-11, MB91305, S29AL016D7OTFI01, CXA2240AR, VGA FB2: 1-873-983-11, D61123F1 100, MB91305, SAA7115AHL, HDMI: CXB1444R, PC: THC7981-17, SiI 9151CLU QN91711, AVC: 1-873-954-11, CONF4 ALTERA MAX II, FPM240T100C3N, NBAH9M0791A, TUNER: 1-873-956-11, Tuner: BTD-HF401Z(01)8-597-613-01 BI7K19
T-con: 1-873-860-11 (172868211) стикер A1257224B, Eltron Tech EM6A932OBI-5MG, T-CON-Rebuild: 404652HHC8L V1.8, THC63LVDI04S x4, XILINX SPARTAN XC3S400 FCC456EGQ0725, CMX4144TO x2
Invertor: SSB520HA24- LU_LL_RU_RL, AV IN: 1-873-858-11 A1312743A, FREE VIEW: 1-873-955-11, PSU GF2: 1-873-814-12 A1362552A, MIP2H2, L6562N, CX09841P, Sub PSU DF5: 1-873-819-12 A1253588B, Sub PSU DF4: 1-873-818-12 A125358713