Technical description and composition of the PHILIPS 32PFL4606H TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL4606H / 60
Chassis / Version: TPM7.1E LA
Panel: LC320WUY (SC) (A1)
Power Supply (PSU): 715G4545-P2A-H20-002U
MainBoard: 715G4481-M02-000-005X
IC MainBoard: CPU: MT5395LHGJ, DDR: NT5CB64M16AP, Nand: HY27UF082G2B, SPI Flash: MX25L4005AMI-12G
Tuner: ENV57U09D5F
Specifications 32PFL4606H
PHILIPS 32PFL4606H
General recommendations for repairing TV LCD
It is recommended to start troubleshooting diagnostics and repairing PHILIPS with the TPM7.1E LA chassis, as well as other electronic devices, with an external inspection of the external and internal elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
If the PHILIPS 32PFL4606H does not turn on, no control lights on the front panel light up and do not blink, therefore, there is a very high probability of a power supply module 715G4545-P2A-H20-002U malfunction. In some cases, only the processor power regulator may be faulty. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If the PHILIPS 32PFL4606H does not have an image, but there is sound and the TV is controlled from the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors. If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software).
Owners and users of the PHILIPS 32PFL4606H TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
Service manual and schematic diagram 32PFL4606H/60 Chassis TPM7.1E LA
The appearance of the MainBoard 715G4481-M02-000-005X is shown in the figure below:715G4481-M02-000-005X
715G4481-M02-000-005X can be used in TVs:
PHILIPS 42PFL4606H/60 (Panel LC420WUY SCA1), PHILIPS 32PFL4606H/60 (Panel LC320WUY (SC)(A1)).
The appearance of the power supply
Main features of the PHILIPS 32PFL4606H device:
Installed matrix (LCD panel) LC320WUY (SC) (A1).
The necessary supply voltages for all nodes of the PHILIPS 32PFL4606H TV are generated by the power supply module 715G4545-P2A-H20-002U, or its analogs.
MainBoard - the main board (motherboard) is a 715G4481-M02-000-005X module using CPU chips: MT5395LHGJ, DDR: NT5CB64M16AP, Nand: HY27UF082G2B, SPI Flash: MX25L4005AMI-12G and others.
The ENV57U09D5F tuner provides TV reception and channel tuning.