Technical description and composition of the PHILIPS 32PFL4268T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 32PFL4268T / 60
Chassis / Version: TPM10.1E LA
Panel: TPT315B5-HV01 REV-S200E code: 168
LED backlight: 015B8000-B12-001-6840 LBM320M0904-BC-2
T-CON: T315HW07 VB Ctrl BD 31T14-C0J
LED driver (backlight): integrated into PSU
PWM LED driver: PF7900S, PF7700A
Power Supply (PSU): 715G5793-P02-000-002H
PWM Power: PF6200 (PWM), NR111D
MainBoard: 715G5713-M0E-000-005X (WK-1239)
IC MainBoard: CPU: MT5580MPOI, DRAM: H5TQ2G83DFR, NAND Flash: TC58NVG2S3ETAI0, SOUND: STA3818
Tuner: TDSY-G230D
Control: IR: 715G5763-R01-000-004S, Wi-Fi: 323C1632518D
Specifications 32PFL4268T
PHILIPS 32PFL4268T
General repair guidelines for TV LCD LED
Possible malfunctions
- The PHILIPS 32PFL4268T 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.
Typically, with such manifestations, the defect is caused by faulty elements in the main power module 715G5793-P02-000-002H. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches and rectifier diodes in the converters for a 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 are most often cut off.
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 circuits (OOS) of stabilization. PWM controllers (PWM) PF6200 (PWM), NR111D, if they do not have visible damage to the case and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and all the other functions of the TV work. The image sometimes for a second appears immediately after turning on and disappears.
Often in such cases, there is no LED backlight. Often the cause of the malfunction is the lack of current in the LED circuit, for example, an open or short circuit, or a violation of the contact connections of the connectors.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- 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 715G5713-M0E-000-005X motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - CPU: MT5580MPOI, DRAM: H5TQ2G83DFR, NAND Flash: TC58NVG2S3ETAI0, SOUND: STA3818 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
If the TV works normally from external devices, but does not tune into television channels, the TDSY-G230D 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.
It should be remembered! Attempts to self-repair a PHILIPS 32PFL4268T 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-serviceability of the device!
Service manual and schematic diagram Chassis TPM10.1E LA part1, part2, part3
The appearance of the MainBoard 715G5713-M0E-000-005X is shown in the figure below:715G5713-M0E-000-005X
715G5713-M0E-000-005X can be used in TVs:
PHILIPS 32PFL3208T/60 (Panel TPT315B5-TU4A code 196 p/n: 996590004721), PHILIPS 47PFL5028T/60 (Panel LC470EUE (FF)(F1) code 191 p/n: 932229833682).
The appearance of the power supply
Key Features of PHILIPS 32PFL4268T:
Installed matrix (LED panel) TPT315B5-HV01 REV-S200E code: 168.
The matrix control uses the Timing Controller (T-CON) T315HW07.
To power the backlight LEDs, a converter is used, combined with the power supply, it is controlled by the PF7900S, PF7700A PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 32PFL4268T TV are generated by the 715G5793-P02-000-002H power supply module, or its analogs using PF6200 (PWM), NR111D microcircuits.
MainBoard - the main board (motherboard) is a module 715G5713-M0E-000-005X, using CPU chips: MT5580MPOI, DRAM: H5TQ2G83DFR, NAND Flash: TC58NVG2S3ETAI0, SOUND: STA3818 and others.
The TDSY-G230D tuner provides TV reception and channel tuning.