Technical description and composition of the PHILIPS 32PFL4418T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 32PFL4418T / 60
Chassis / Version: TPM10.1E LA
Panel: LTA320HJ06
LED backlight: LJ07-01133A; cool: LJ97-04447A
LED driver (backlight): integrated into PSU
PWM LED driver: PF7900S, PF7700A
Power Supply (PSU): 715G5793-P02-000-002H
PWM Power: PF6200 (PWM flyback), NR111D (PWM Step-down)
MainBoard: 715G5713-M0E-000-005N
IC MainBoard: CPU: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818
Tuner: TDSY-G230D
Specifications 32PFL4418T
PHILIPS 32PFL4418T
General repair guidelines for TV LCD LED
TV PHILIPS 32PFL4418T / 60, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. Many visible changes in the state of the elements make it possible to determine the further direction of troubleshooting and localization of the defect. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
Sometimes the PHILIPS 32PFL4418T TV simply 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 a failure of the 715G5793-P02 common power module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the PHILIPS 32PFL4418T does not have an image, there is sound and the channels switch, there is a possibility of a malfunction in the backlight LED circuit of the LTA320HJ06 panel, or their power converter - LED driver. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
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.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Testing or replacing elements 715G5713-MOE-000-005N requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
In cases where there is no tuning to the local television channels, you should make sure that there is varicap supply voltage (30-33V) and other supply voltages at the terminals of the TDSY-G230D tuner.
Attention to users! Do-it-yourself repair of the PHILIPS 32PFL4418T TV without the appropriate qualifications and experience may lead to its complete non-repairability !!!!!!!!!!!!!!
Service manual and schematic diagram 32PFL4418T/60 Chassis TPM10.1E LA part1, part2, part3
The appearance of MainBoard 715G5713-M0E-000-005N is shown in the figure below:715G5713-M0E-000-005N
715G5713-M0E-000-005N can be used in TVs:
PHILIPS 32PFL5008T/60 (Panel LC320EUE (FF)(F1) code 189 p/n: 932229831682), PHILIPS 46PFL4208T/60 (Panel TPT460H1-HM01 REVC1F), PHILIPS 50PFL5028T/60 (Panel LC500EUE-FFF1 code 192 p/n: 932229834682), PHILIPS 32PFL4418T/60 (Panel LTA320HJ06).
The appearance of the power supply
Main features of the PHILIPS 32PFL4418T device:
Installed matrix (LED-panel) LTA320HJ06.
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 32PFL4418T TV are generated by the power supply module 715G5793-P02-000-002H, or its analogs using PF6200 (PWM flyback), NR111D (PWM Step-down) microcircuits.
MainBoard - the main board (motherboard) is a 715G5713-M0E-000-005N module, using CPU chips: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818 and others.
The TDSY-G230D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA320HJ06
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: PVA, Normally Black, Transmissive
Lamp Type: WLED Without Driver