Technical description and composition of the SONY KLV-32A10E TV, panel type and applicable modules. The composition of the modules.SONY
Model: KLV-32A10E
Chassis / Version: AT2X
Panel: LTY320W2-L02
T-CON: 320W2C4LV3.4
Inverter (backlight): PCB2638-1 A06-126001A CSN272-20
Power Supply (PSU): 1-865-240-31 - A1168958A - G2
PWM Power: FA5501AN (PFC), CXD9841M, STR-A6169 (Standby)
MOSFET Power: 2SK3568, FSF05A60 (PFC)
MainBoard: 1-867-365-12 + 1-867-446-15
IC MainBoard: CXA20690, MSP4411K D5, SAA5665HL,
Tuner: BTF-EF412Z - 8-597-993-00
Control: RM-EA001
Appearance
SONY KLV-32A10E
General recommendations for repairing TV LCD
Repair of electronic devices, including the SONY KLV-32A10E TV, it is advisable to start with an external examination of its external and internal elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before the necessary measurements are taken. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
If the power supply module 1-865-240-31 - A1168958A - G2 malfunctions, the external manifestations may be different, for example, the SONY KLV-32A10E does not turn on at all and there is no indication of the indicator lights on the front panel. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself for no reason that you should look for when checking other elements of the primary circuit - electrolytic capacitors, PWM controller FA5501AN (PFC), CXD9841M, STR-A6169 (Standby), which can only be checked by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the SONY KLV-32A10E TV does not have an image, but there is sound, make sure that the backlight power converter (inverter) is working properly. It is also necessary to check the electrolytic capacitors of the filter of the secondary rectifiers of the BP (power supply) for excessive ESR. All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update 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 CXA20690, MSP4411K D5 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed 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 BTF-EF412Z tuner - 8-597-993-00. 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.
Attention! For users and owners of KLV-32A10E TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
Service manual / schematic diagram ----------> Sony KLV-V26A10E, KLV-V32A10E, KDL-V26A12U, KDL-V32A12U - AT2X CHASSIS
The appearance of MainBoard 1-867-365-12 is shown in the figure below:1-867-365-12
The appearance of the power supply
Main features of the device SONY KLV-32A10E:
Installed matrix (LCD panel) LTY320W2-L02.
The matrix control uses the Timing Controller (T-CON) 320W2C4LV3.4.
To power the backlight used inverter PCB2638-1.
The necessary supply voltages for all nodes of the SONY KLV-32A10E TV are generated by the power module 1-865-240-31, or its analogs using microchips FA5501AN (PFC), CXD9841M, STR-A6169 (Standby) and power switches of the type 2SK3568, FSF05A60 ( PFC).
MainBoard - the main board (motherboard) is a 1-867-365-12 module, using CXA20690, MSP4411K D5, SAA5665HL, and others.
Tuner BTF-EF412Z - 8-597-993-00 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: S-LCD
Model: LTY320W2-L02
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA