Technical description and composition of the PHILIPS 32PFT5300 TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 32PFT5300 / 60
Chassis / Version: TPM15.1E LA
Panel: TPT315B5-EUJFFE
LED backlight: LBM320P0701-FC-2
T-CON: 6870C-0438A
LED driver (backlight): integrated into PSU
PWM LED driver: PF7708AS
MOSFET LED driver: SM1A23NSUC-TRG
Power Supply (PSU): 715G6550-P03-000-002H
PWM Power: PF6003
MOSFET Power: TK6A65D
MainBoard: 715G6165-M01-001-005K (WK: 1439)
IC MainBoard: CPU: MT5580, EEPROM: 24128E, eMMC: P95L-4KA1-JW963
Tuner: TDSY-G720D
Control: Wi-Fi: 8WUSN24V.3A1G
Specifications 32PFT5300
PHILIPS 32PFT5300
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The PHILIPS 32PFT5300 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.
With similar manifestations, in some cases, the 715G6550-P03-000-002H power module is faulty. It is necessary to measure its output voltages, and if they are absent (full or partial), you should check the operability of the power switches (TK6A65D) of the converters and rectifier diodes for a 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 mains fuse and, less often, the current sensor at the source of the key are most often cut off.
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. PF6003 PWM controllers, in the absence of visible damage or explicit short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the 715G6165-M01-001-005K 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). If it is not possible to replace the MB board (SSB), you need to check the health of its elements - CPU: MT5580, EEPROM: 24128E, eMMC: P95L-4KA1-JW963. Defective components should be replaced.
If you suspect a malfunction of the TDSY-G720D tuner, first of all, you need to verify the correctness of the software, as well as the presence of the necessary voltage levels and pulses of data exchange with the processor via the I2C bus at the corresponding terminals of the tuner.
It should be remembered! Attempts to independently repair the PHILIPS 32PFT5300 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 PHILIPS 32PFT5300 Chassis TPM15.1E LA
The appearance of the MainBoard 715G6165-M01-001-005K is shown in the figure below:715G6165-M01-001-005K
The appearance of the power supply
Main features of the PHILIPS 32PFT5300 device:
Installed matrix (LED-panel) TPT315B5-EUJFFE.
The matrix control uses the Timing Controller (T-CON) 6870C-0438A.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the PF7708AS PWM controller. As the power elements of the LED driver, keys of the type SM1A23NSUC-TRG are used.
The necessary supply voltages for all nodes of the PHILIPS 32PFT5300 TV are generated by the power module 715G6550-P03-000-002H, or its analogs using PF6003 microcircuits and TK6A65D type power switches.
MainBoard - the main board (motherboard) is a 715G6165-M01-001-005K module, using CPU chips: MT5580, EEPROM: 24128E, eMMC: P95L-4KA1-JW963 and others.
The TDSY-G720D tuner allows you to receive television programs and tune to channels.