Technical description and composition of the PHILIPS 32PFT4101 TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 32PFT4101 / 60
Chassis / Version: TPN16.2E LA
Panel: TPT315B5-FHBN0.K
LED backlight: GJ-2K16 D2P5-315 D307-V2.2
T-CON: 47-6021051 HV320FHB-N00
LED driver (backlight): integrated into PSU
PWM LED driver: PF7708BS
MOSFET LED driver: AOD2922
Power Supply (PSU): 715G7734-P01-000-002H
PWM Power: PF6005AS
MOSFET Power: TK6A65D
MainBoard: 715G6947-M01-000-004Y
IC MainBoard: CPU: NT72453; NAND Flash: MX30LF1G08AA-T1 1Gb; SOUND: AUDIO AD87588-LG48NAY
Tuner: ST42CS-2-E
Control: IR: 715G7055-R01-000-004Y
Specifications 32PFT4101
PHILIPS 32PFT4101
General repair guidelines for TV LCD LED
Possible malfunctions
- PHILIPS 32PFT4101 does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
In such cases, the 715G7734-P01-000-002H power supply is usually faulty. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches (TK6A65D) and rectifier diodes in the converters for a short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PF6005AS PWM controllers, in the absence of visible damage or obvious short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
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 indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 715G6947-M01-000-004Y motherboard should be started by checking the stabilizers and power converters needed to power the microcircuits and matrix. If necessary, update or replace 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 CPU chips: NT72453; NAND Flash: MX30LF1G08AA-T1 1Gb; SOUND: AUDIO AD87588-LG48NAY and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before replacing the ST42CS-2-E tuner, if there is no tuning for 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 I2C
TV users and owners need to remember that attempts to independently repair a PHILIPS 32PFT4101 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
Service manual and schematic diagram ----------------> PHILIPS 32PFT4101 Chassis
The appearance of the MainBoard 715G6947-M01-000-004Y is shown in the figure below:
715G6947-M01-000-004Y
715G6947-M01-000-004Y can be used in TVs:
PHILIPS 40PFT4100/60 (Panel TPT400LA-HN02.S Rev-SS01B code 018), PHILIPS 24PHT4000/60 (Panel TPM236WH2-BJ1P03.N REV.LC1E), PHILIPS 40PFT4101/60 (Panel TPT4001A-HN02.S / TPN16.2ELA), PHILIPS 32PHT4100/60 (Panel TPT315B5-0TU3A.Q code: 003).
The appearance of the power supply
Main features of the PHILIPS 32PFT4101 device:
Installed matrix (LED panel) TPT315B5-FHBN0.K.
The matrix control uses the Timing Controller (T-CON) 47-6021051.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the PF7708BS PWM controller. As power elements of the LED driver, keys of the AOD2922 type are used.
The necessary supply voltages for all nodes of the PHILIPS 32PFT4101 television are generated by the power module 715G7734-P01-000-002H, or its analogs using PF6005AS microcircuits and TK6A65D type power switches.
MainBoard - the main board (motherboard) is a module 715G6947-M01-000-004Y, using CPU chips: NT72453; NAND Flash: MX30LF1G08AA-T1 1Gb; SOUND: AUDIO AD87588-LG48NAY and others.
The ST42CS-2-E tuner provides television reception and channel tuning.