Technical description and composition of the PHILIPS 47PFT6569 TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 47PFT6569 / 60
Chassis / Version: TPM14.1E LA
Panel: TPT470H1-DUJSGK
LED backlight: LBM470P1001-M-2 (L), LBM470P0301-N-2 (R)
T-CON: 6870C-0471D
LED driver (backlight): integrated into PSU
PWM LED driver: LD7890GS
MOSFET LED driver: P3710BTF
Power Supply (PSU): 715G6338-P02-000-002S PLTVDQ401XXN3
PWM Power: LD7752B, LD7591T (PFC), LCS700LG
MOSFET Power: TK16A60W (PFC)
MainBoard: 715G6165-M01-000-005X
IC MainBoard: CPU: MT5580PUEI; DRAM: K4B4G1646B-HCK0; NAND Flash: TC58NVG2S3ETAI0; SPI Flash: CAT24C128WI
Tuner: TDSY-G720D
Control: WIFI: 8WUSN24V.3A1G
Specifications 47PFT6569
PHILIPS 47PFT6569
General repair guidelines for TV LCD LED
Possible manifestations of defects
- PHILIPS 47PFT6569 does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
With similar manifestations, in some cases, the 715G6338-P02-000-002S power module is faulty. It is necessary to measure its output voltages and, if they are absent, check the power switches (TK16A60W (PFC)) and rectifier diodes for the probability of short circuit in the converters.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) LD7752B, LD7591T (PFC), LCS700LG, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
The most likely in these cases is a malfunction of the LED backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the 715G6165-M01-000-005X motherboard should begin by checking the stabilizers and power converters needed to power the microcircuits and matrix. If necessary, update or replace the software (software). Board repair and replacement of CPU chips: MT5580PUEI; DRAM: K4B4G1646B-HCK0; NAND Flash: TC58NVG2S3ETAI0; SPI Flash: CAT24C128WI are manufactured with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
If the TV works normally from external devices, but does not tune into television channels, the TDSY-G720D tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Once again, remind users! Attempts to independently repair the PHILIPS 47PFT6569 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
Service manual and schematic diagram PHILIPS 47PFT6569 Chassis TPM14.1E LA
The appearance of the MainBoard 715G6165-M01-000-005X is shown in the figure below:715G6165-M01-000-005X
715G6165-M01-000-005X can be used in TVs:
PHILIPS 42PFT6309/60 (Panel LC420DUN (PG)(P1) CODE 106), PHILIPS 40PFT4509/60 (Panel TPT400LA-J6PE1 REV:C1A), PHILIPS 42PFT6569/60 (Panel LC420DUN (PG)(A1)), PHILIPS 32PHT4509/60 (Panel TPT315B5-DXJSFE Rev-S1Z code 112).
The appearance of the power supply
Main features of the PHILIPS 47PFT6569 device:
Installed matrix (LED-panel) TPT470H1-DUJSGK.
The matrix control uses the Timing Controller (T-CON) 6870C-0471D.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the LD7890GS PWM controller. As the power elements of the LED driver, keys of the P3710BTF type are used.
The necessary supply voltages for all nodes of the PHILIPS 47PFT6569 TV are generated by the power module 715G6338-P02-000-002S, or its analogs using microcircuits LD7752B, LD7591T (PFC), LCS700LG and power switches of the type TK16A60W (PFC).
MainBoard - the main board (motherboard) is a 715G6165-M01-000-005X module, using CPU chips: MT5580PUEI; DRAM: K4B4G1646B-HCK0; NAND Flash: TC58NVG2S3ETAI0; SPI Flash: CAT24C128WI and others.
The TDSY-G720D tuner allows you to receive television programs and tune to channels.