Technical description and composition of the PHILIPS 40PFT5501 TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 40PFT5501 / 60
Chassis / Version: QM16.4E LA
Panel: TPT400LA-HN02.S
LED backlight: GJ-2K15 D2P5-400-D409-C4
T-CON: 15Y_40GF11BMB7S4LV0.1
LED driver (backlight): integrated into PSU
PWM LED driver: PF7909S
MOSFET LED driver: AOTF4126
Power Supply (PSU): 715G7574-P01-000-002M
PWM Power: LD7591T, SSC3S121A
MOSFET Power: TK12A60W, AOTF12N65
MainBoard: 715G7030-M01-B01-005N
IC MainBoard: MT5593FPIJ, THGBMBG6D1KBAIL, H5TQ2G63FFR-RDC, TAS5760LD
Tuner: TDSY-G480D
Control: IR: 715G8009-R01-000-004Y, WiFi: TWCM-K002D
Specifications 40PFT5501
PHILIPS 40PFT5501
General repair guidelines for TV LCD LED
Possible malfunctions
- The PHILIPS 40PFT5501 TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
In such cases, the 715G7574-P01-000-002M power supply is usually faulty. Then we recommend that you measure its output voltages and, if they are absent, you should check the health of the power switches (TK12A60W, AOTF12N65) and rectifier diodes of the converters for possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short-circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key most often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback (OOS) stabilization circuits. PWM controllers (PWM) LD7591T, SSC3S121A, if they do not have visible damage to the case and open fault between the terminals, are usually checked by replacement.
- 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.
Often in such cases, there is no LED backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
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.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the motherboard 715G7030-M01-B01-005N should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the health of its elements - MT5593FPIJ, THGBMBG6D1KBAIL, H5TQ2G63FFR-RDC, TAS5760LD which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
Before changing the TDSY-G480D tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and checked for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Attention TV owners! Attempts at self-repair of PHILIPS 40PFT5501 are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual and schematic diagram PHILIPS 40PFT5501 Chassis QM16.4E LA
2016 MODELS 32PFH5501/88, 32PFT5501/12, 32PFS5501/12, 32PFT5501/60, 32PFS6401/12, 32PFS6401/60, 40PFH5501/88, 40PFT5501/12, 40PFS5501/12, 40PFT5501/60, 49PFH5501/88, 49PFT5501/12, 49PFS5501/12, 49PFT5501/60
The appearance of the MainBoard 715G7030-M01-B01-005N is shown in the figure below:715G7030-M01-B01-005N
The appearance of the power supply
Main features of the PHILIPS 40PFT5501 device:
Installed matrix (LED panel) TPT400LA-HN02.S.
The matrix control uses the Timing Controller (T-CON) 15Y_40GF11BMB7S4LV0.1.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the PF7909S PWM controller. As power elements of the LED driver, keys of the AOTF4126 type are used.
The necessary supply voltages for all nodes of the PHILIPS 40PFT5501 television are generated by the 715G7574-P01-000-002M power supply module or its analogs using LD7591T, SSC3S121A microcircuits and TK12A60W, AOTF12N65 power switches.
MainBoard - the main board (motherboard) is a module 715G7030-M01-B01-005N, using microcircuits MT5593FPIJ, THGBMBG6D1KBAIL, H5TQ2G63FFR-RDC, TAS5760LD and others.
The TDSY-G480D tuner allows you to receive television programs and tune to channels.