Technical description and composition of the PHILIPS 52PFL5605H TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 52PFL5605H / 12
Chassis / Version: Q552.1E LA
Panel: 52 inch
LED driver (backlight): integrated into PSU
Power Supply (PSU): FSP190-3MS01 (FSP173-3MS01) 272217100974
MainBoard: 310431364005 3104 313 64005 310432864463
Tuner: TH2603
Specifications 52PFL5605H
PHILIPS 52PFL5605H
General repair guidelines for TV LCD LED
It is advisable to start the repair of the PHILIPS 52PFL5605H / 12 TV with a careful external examination of both internal and external elements. Using visible changes in the state of components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before the necessary measurements are taken. If ring cracks are detected in the soldered terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when it is turned on, there is a certain chance that the FSP190-3MS01 (FSP173-3MS01) 272217100974 power supply module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain PHILIPS models. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is broken in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the 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.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. 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 can also cause a breakdown of the power switch of the converter.
If the PHILIPS 52PFL5605H does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction in the circuit of the panel backlight LEDs, or their power converter - LED drivers. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
Repair of the motherboard SSB EH 046.5 PL5.D 310432864463, EH105.3 PL5.D5007346 should begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
In cases where there is no tuning to the local television channels, you should make sure that there is a varicap supply voltage (30-33V) and other supply voltages at the terminals of the TH2603 tuner.
Remember! Attempts to self-repair by users of the PHILIPS 52PFL5605H TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
Service manual and schematic diagram 52PFL5605H/12 Chassis Q552.1E LA
The appearance of MainBoard 310431364005 is shown in the figure below:310431364005
The appearance of the power supply
Main features of the PHILIPS 52PFL5605H device:
Installed matrix (LED-panel) 52 inches.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the PHILIPS 52PFL5605H TV is carried out by the power module FSP190-3MS01, or its analogues.
MainBoard - the main board (motherboard) is a module 310431364005.
The TH2603 tuner provides TV reception and channel tuning.