Technical description and composition of the PHILIPS 46PFL3208T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 46PFL3208T / 60
Chassis / Version: TPM10.1E LA
Panel: TPT460H1-HM01 Rev-C1J
LED backlight: 46 AD00 (72) -078 EVERLIGHT LBM460P0601-AJ-5 (HF) (0), LBM460P0601-AI-3 (HF) (0), LBM460P-bridge-D-5 (HF) (0)
T-CON: A60EDGEC2LV0.2
LED driver (backlight): integrated into PSU
PWM LED driver: PF7900S, PF7700A
Power Supply (PSU): 715G5778-P03-W21-002R
PWM Power: SSC9522S (PWM Resonant), R2A20133ESP (PFC), A6069H (Standby)
MainBoard: 715G5713-M01-000-005K
IC MainBoard: CPU: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818
Tuner: TDSY-G230D
Control: 2422 549 90467, IR: 715G5772-R01-000-004S
Specifications 46PFL3208T
PHILIPS 46PFL3208T
General repair guidelines for TV LCD LED
Sometimes the PHILIPS 46PFL3208T does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is the failure of the 715G5778-P03-W21-002R common power supply module. If it is working properly, you must check the standby batteries on the Main Board. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is broken in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM SSC9522S (PWM Resonant), R2A20133ESP (PFC), A6069H (Standby) chips from the manufacturer.
If the PHILIPS 46PFL3208T has no image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the TPT460H1-HM01 Rev-C1J panel, or their power converter - LED driver. Sometimes, when turned on, the image appears and immediately disappears. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the backlight unit.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source. By opening the panel, each LED can be checked separately. Typically, Chinese multimeters light up a single 3-volt LED, if you connect probes in the forward direction to it. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
Repair of the motherboard 715G5713-M01-000-005K must begin with the diagnosis and verification of all linear stabilizers and power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - CPU: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818. In cases where the BGA processor is used, its malfunction is usually detected by local heating.
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.
Attention! For users and owners of 46PFL3208T TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
SCHEMATIC MANUAL 46PFL3208T/60 Chassis TPM10.1E LA part1, part2, part3
The appearance of the MainBoard 715G5713-M01-000-005K is shown in the figure below:715G5713-M01-000-005K
715G5713-M01-000-005K can be used in TVs:
PHILIPS 50PFL5028T/60 (Panel LC500EUE FFF1 code 192 p/n: 93229834682), PHILIPS 46PFL3208T/60 (Panel TPT460H1-HM01 Rev-C1J).
PSU Advanced
The 46PFL3208T / 60 model uses a 715G5778-P03-W21-002R power supply unit using the PFC (Power Factor Correction) node - an active filter of higher harmonics of the consumed current. In fact, it is a boost converter based on the R2A20133ESP PWM controller, which eliminates the charge current of the rectifier filter's electrolytic capacitor from the network directly through the open diodes when its charging current is determined by its reactance.
As a result of the operation of the converter, the envelope of the high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The health of the PFC node can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the rectifier network in operating mode.
The appearance of the power supply
Main features of the PHILIPS 46PFL3208T device:
Installed matrix (LED panel) TPT460H1-HM01 Rev-C1J.
The matrix control uses the Timing Controller (T-CON) A60EDGEC2LV0.2.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the PF7900S, PF7700A PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 46PFL3208T TV are generated by the 715G5778-P03-W21-002R power supply module or its analogs using SSC9522S (PWM Resonant), R2A20133ESP (PFC), A6069H (Standby) microcircuits.
MainBoard - the main board (motherboard) is a 715G5713-M01-000-005K module, using CPU chips: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818 and others.
The TDSY-G230D tuner provides TV reception and channel tuning.
