Technical description and composition of the TV SONY KDL-32W5500, type of panel and applicable modules. The composition of the modules.SONY
Model: KDL-32W5500
Chassis / Version: EX2L
Panel: T315XW02 V.1
Inverter (backlight): 4h + v2258.041 / C
Power Supply (PSU): PSC10289 M
PWM Power: SSC9503, STR-A6079
MainBoard: 1-878-942-22 BA board
IC MainBoard: MC10147F1 410, MB91F313A, NAND Flash K9F1208UOC, EEPROM 24c32
Tuner: BTD-HF422T
Control: RM-ED016
Technical Specifications KDL-32W5500
SONY KDL-32W5500
General recommendations for repairing TV LCD
Repair of electronic equipment usually begins with an external inspection of the device and diagnosis of the malfunction. In this case, you should visually carefully examine all the elements of the SONY KDL-32W5500 TV, both internal and external. Visible damage to elements can sometimes suggest further directions for finding a defect before starting the necessary measurements. 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.
Sometimes the SONY KDL-32W5500 TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is the failure of the PSC10289 common power module. When diagnosing and repairing the PSC10289 power supply, first of all, it is necessary to check the fuse, and if it is broken, the power switch and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be remembered that the N-FET keys used in flyback converters rarely fail for no reason that must be sought by checking other elements of the circuit. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip may also cause a breakdown of the power switch of the converter.
If the power module uses an active KKM circuit (power factor control), troubleshooting is somewhat more complicated.
Sometimes the SONY KDL-32W5500 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including the power supply unit (power supply unit).
When repairing the 4h + v2258.041 / C inverter, it is often necessary to disable the protection for diagnostics, which, for the purpose of fire safety, turns it off in any emergency situation, for example, during a malfunction or uneven wear of the lamps, which makes it difficult to find a defect.
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.
If the motherboard 1-8778-942-22 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.
Attention to users! Self-repair of a SONY KDL-32W5500 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual / schematic diagram -------------------> Sony KDL-32/37/40/46W5500 chassis EX2L
psu / schematic diagram -------------------> Sony PSC10289 Power Supply
The appearance of MainBoard 1-878-942-22 is shown in the figure below:1-878-942-22
1-878-942-22 can be used in televisions:
SONY KDL-32W5500 (Panel T315XW02 V.1), SONY KDL-37V5500 (Panel T370HW02 V.B.), SONY KDL-40V5610 (Panel LTY400HA12), SONY KDL-40W5500 (Panel LTY400HF05), SONY KDL-40WE5 (Panel LTY400HF02 102), SONY KDL-46W5500 (Panel LTY460HF05), SONY KLV-46V550A (Panel T460HW03 V.2), SONY KDL-46W5740 (Panel LTY460HF05).
The appearance of the power supply
Main features of the device SONY KDL-32W5500:
Installed matrix (LCD panel) T315XW02 V.1.
To power the backlight used inverter 4h + v2258.041.
The necessary supply voltages for all nodes of the SONY KDL-32W5500 TV are generated by the PSC10289 power module or its analogs using SSC9503, STR-A6079 microcircuits.
MainBoard - the main board (motherboard) is a module 1-878-942-22, using microchips MC10147F1 410, MB91F313A, NAND Flash K9F1208UOC, EEPROM 24c32 and others.
The BTD-HF422T tuner provides TV reception and channel tuning.
Information from an alternative source:
SONY KDL-32W5500 Chassis EX2L
Panel Type (Matrix): T315XW02 V.1, MAIN: 1-8778-942-22
Invertor: 4h + v2258.041 / C,
PSU: PSC10289
Remote control: RM-ED016
Additional technical information about the panel:
Brand: AUO
Model: T315XW02 V1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V