Technical description and composition of the PHILIPS 46PFL9707T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 46PFL9707T / 12
Chassis / Version: QFU1.1E LA
Panel: LK460DL
LED driver (backlight): integrated into PSU
Power Supply (PSU): FSP224-5F01 2722 171 90719 REV: 00
PWM Power: PWM
MainBoard: 310431365554 3104 313 65554A 310432869643
IC MainBoard: FUSION240, STV6110AT, STV0903BAC, H5TQ2G63BFR-PBC, MT29F8G08ABACAWP
Tuner: SUT-RE214AN
Specifications 46PFL9707T
PHILIPS 46PFL9707T
General repair guidelines for TV LCD LED
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 turned on, there is a certain chance that the FSP224-5F01 2722 171 90719 REV: 00 power supply module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of standby power. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the rectifier bridge of the mains voltage and the power key (s) of the converter. The complete inoperability of the power supply unit can be caused by a short circuit in the power elements in the primary circuit, followed by an open fuse, or a short circuit in the loads.
Power switches in switching power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The reason may be a malfunction of the IC_Power PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
If the PHILIPS 46PFL9707T does not have an image, but there is sound, there may be a malfunction of the backlight LEDs of the LK460DL panel or their power converter - LED driver.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
To open all transitions, several tens of volts or more are necessary, and it is best to use a current source for such purposes. A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. In the open panel, it is necessary to check each LED. If your multimeter cannot open the LED transitions in forward bias, then see the presence of the PN transition of the protective zener diode by connecting the probes in the opposite direction. If the zener diode is broken or broken in short-circuit, then the LED is faulty and needs to be replaced.
Repair or diagnostics of the motherboard 310431365554 3104 313 65554A 310432869643 should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, you should 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 FUSION240, STV6110AT, STV0903BAC, H5TQ2G63BFR-PBC, MT29F8G08ABACAWP and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before replacing the SUT-RE214AN tuner, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
It should be remembered! Attempts to repair the PHILIPS 46PFL9707T TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
Service manual and schematic diagram 46PFL9707T/12 Chassis QFU1.1E LA
FOR MODELS:
40PFL7007H/12, 40PFL7007K/12, 40PFL7007T/12, 40PFL8007K/12, 40PFL8007T/12, 42PFL6907H/12, 42PFL6907K/12, 42PFL6907T/12, 46PFL7007H/12, 46PFL7007K/12, 46PFL7007T/12, 46PFL8007K/12, 46PFL8007T/12, 46PFL9707S/12, 46PFL9707T/12, 47PFL6907H/12, 47PFL6907K/12, 47PFL6907T/12, 55PFL7007H/12, 55PFL7007K/12, 55PFL7007T/12, 55PFL8007K/12, 55PFL8007T/12, 60PFL9607S/12, 60PFL9607T/12
The appearance of MainBoard 310431365554 is shown in the figure below:310431365554
310431365554 can be used in TVs:
PHILIPS 40PFL7007T/12 (Panel LTA400HL15 code 003), PHILIPS 42PFL6907T/12 (Panel LC420EUF-PEF1 code 413), PHILIPS 46PFL8007T/12 (Panel LTA460HQ17 (SMGK) B p/n: 932229485682), PHILIPS 47PFL6907T/12 (Panel LC470EUF PEF1 code 414), PHILIPS 55PFL8007T/12 (Panel LTA550HQ19 code 325 p/n: 932229486682), PHILIPS 46PFL7007T/12 46PFL7007K/12 (Panel LTA460HQ17 ), PHILIPS 40PFL8007T/12 (Panel LTA400HL15), PHILIPS 46PFL9707T/12 (Panel LK460DL), PHILIPS 55PFL7007T/12 (Panel LTA550HQ19).
The appearance of the power supply
Main features of the PHILIPS 46PFL9707T device:
Installed matrix (LED-panel) LK460DL.
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the PHILIPS 46PFL9707T TV are generated by the FSP224-5F01 power supply module, or its analogs using PWM chips.
MainBoard - the main board (motherboard) is a module 310431365554, using chips FUSION240, STV6110AT, STV0903BAC, H5TQ2G63BFR-PBC, MT29F8G08ABACAWP and others.
The SUT-RE214AN tuner provides TV reception and channel tuning.