Technical description and composition of the TV SONY KDL-46W5500, type of panel and applicable modules. The composition of the modules.SONY
Model: KDL-46W5500
Chassis / Version: EX2L
Panel: LTY460HF05
T-CON: 46NN_MB4C6LV0.6
Inverter (backlight): SSB460H16S01 REV0.2
Power Supply (PSU): 1-878-599-11 IP2
PWM Power: CXD9969P, MIP2H2, LX1692, BA2901SF
MOSFET Power: 2SK3934 (PFC), TK8A50D
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-46W5500
SONY KDL-46W5500
General recommendations for repairing TV LCD
It is advisable to start the repair and diagnostics of the SONY KDL-46W5500 TV with a careful external examination of the internal and external elements, including case parts, a display, buttons and cables. Often, by the external signs and nature of some damage, it is possible to draw preliminary conclusions and determine a further algorithm for troubleshooting. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
If the SONY KDL-46W5500 does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a malfunction of the IP5 1-878-599-11 power supply module. In this case, first of all, it is necessary to check the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the N-FET converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
If a breakdown of the power switch of the flyback converter of the power supply unit is detected, it should be remembered that it does not fail without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller that can only be checked by replacement, as well as others semiconductor elements (diodes, transistors, zener diodes).
Diagnostics of power modules with a Power Factor Corrector (CMC) is somewhat more complicated and requires a more detailed approach.
In cases where the SONY KDL-46W5500 TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of an inverter (converter for powering the backlight) malfunction. When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power.
In most cases, the diagnosis and repair of the SSB460H16S01 REV0.2 inverter is difficult due to the organization of protection, which turns it off in emergency cases to avoid fires during short circuits or open circuits in high voltage circuits and when lamps are depressurized. Often, repairmen block the protection circuits in order to make the necessary measurements at the control points of the inverter to identify the causes of the defect.
It should be remembered that when the protection is turned off, there is always a risk of failure of the power elements of the inverter during diagnosis. After repair, it is necessary to restore all standard converter protection circuits.
Diagnostics and repair of the BA 1-878-942-22 motherboard is carried out by checking the performance of power stabilizers or updating the software (software).
Attention to users! Self-repair of a SONY KDL-46W5500 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
Service manual / schematic diagram -------------> Sony 1-878-599-11 IP2 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-46W5500:
Installed matrix (LCD-panel) LTY460HF05.
The matrix control uses the Timing Controller (T-CON) 46NN_MB4C6LV0.6.
To power the backlight used inverter SSB460H16S01.
The necessary supply voltages for all nodes of the SONY KDL-46W5500 TV are generated by the power module 1-878-599-11, or its analogs using CXD9969P, MIP2H2, LX1692, BA2901SF microchips and 2SK3934 (PFC), TK8A50D power switches.
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-46W5500 Chassis EX2L
Panel Type (Matrix): LTY46HF05
Motherboard: P / N: 1-878-942-22
T-con: P / N: 46NN_MB4C6LV0.6,
Invertor: P / N: SSB460H16S01 REV0.2
PSU: P / N: 1-878-599-11
Remote control: RM-ED016
Additional technical information about the panel:
Brand: S-LCD
Model: LTY460HF05
Type: a-Si TFT-LCD, Panel
Diagonal size: 46 inch
Resolution: 1920x1080, FHD
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 1018.08x572.67 mm
Surface: Antiglare (Haze 7%), Hard coating (3H)
Brightness: 480 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8/6 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs CCFL Embedded (Balance board)
Signal Interface: LVDS (2 ch, 10-bit), 55 pins
Voltage: 12.0V