Technical description and composition of the PHILIPS 32PF5320 TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PF5320 / 10
Chassis / Version: LC4.3E AA
Panel: L0315T3LZ33
T-CON: CPWBX3298TPZ
Power Supply (PSU): PLCD170P2
PWM Power: DLA001D (PWM = L6598), NCP1207A (PWM), L6562D (PFC)
MainBoard: 3139-123-6093.1 WK509.2
IC MainBoard: CPU: TDA15021H / N1A1, Scaler: GM1501-LF-BD, DRAM: K4D263238F
Tuner: UV1318S / A I H-3 3139 147 19801E
Specifications 32PF5320
PHILIPS 32PF5320
General recommendations for repairing TV LCD
TV PHILIPS 32PF5320 / 10, like other electronic devices, it is advisable to start repairing from inspection of external and internal elements. Often, by visible changes, it is possible to determine the further direction of troubleshooting and localization of the defect before the start of the acquisition of oscillograms and the necessary measurements. In most cases, the repairman can guess the causes of the defect and possible consequences from the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of the element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
Power Module Repair
If the PHILIPS 32PF5320 / 10 does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a power module malfunction. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes or power switch.
The reasons for the breakdown of the power switch of the flyback converter of the power module can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or breakage of the resistors in its bundle.
In cases using a power module with an active KKM, troubleshooting is sometimes somewhat more complicated.
Inverter Repair
Sometimes the PHILIPS 32PF5320 / 10 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including the power supply unit (power supply unit).
Often, attempts to repair the inverter are hampered by the fact that the diagnosis of the malfunction is complicated by the operation of its protection, which is designed to turn off the inverter in emergency conditions - when the lamps are depressurized, breaks or short circuits in high-voltage connections and other emergency situations. Lock protection to localize the defect is popular among repairmen.
In such cases, special care should be taken when diagnosing, and after completion of all repair work, it is necessary to restore the circuit and the inverter protection for the further safe operation of the TV.
Attention to the owners! Attempts at self-repair of the PHILIPS 32PF5320 / 10 TV are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual and schematic diagram 32PF5320/10 Chassis LC4.3E AA
FOR MODELS 26PF4310/10, 26PF5320/10, 32PF5320/1, 32PF7320/10, 26PF4310/10, 26PF5320/1, 32PF5320/1, 32PF7320/10, 26PF5320/1, 32PF5320/10, 32PF7320/10, 26PF4310/10, 26PF5320/1, 32PF5320/1, 32PF7320/1, 26PF4310/10, 26PF5320/10, 32PF5320/1, 32PF7320/10, 26PF4310/1, 26PF5320/10, 32PF5320/10, 32PF7320/10.
The appearance of MainBoard 3139-123-6093.1 is shown in the figure below:3139-123-6093.1
3139-123-6093.1 can be used in televisions:
PHILIPS 26PF3320/10 (Panel QD26HL02-REF01), PHILIPS 26PF4310/10 (Panel QD26WL01 REV:01), PHILIPS 32PF5320/10 (Panel L0315T3LZ33), PHILIPS 32PF7320/10 (Panel LC320W01(SL)(06)).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the PLCD170P2 module provides for the use of a power factor correction unit (Power Factor Correction). The PFC circuit is a flyback converter based on the L6562D PWM controller. The reactance of an electrolytic capacitor of a line filter at a frequency of 50-60 Hz is usually not more than 20-30 ohms and its charge directly from the network through open diodes could reach tens of amperes per pulse if no filtering were applied.
As a result of the PFC conversion, an increased voltage on the capacitor (about 380V) cannot directly open the rectifier diodes, on the anode of which the voltage will always be slightly less (about 300V) and then its charging current will always be limited by the elements of the PWM controller. As a result, the envelope of the high-frequency pulses of the consumed current will repeat the shape and phase of the input sinusoidal voltage. The presence of an increased voltage (+ 380V) on the network capacitor indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the PHILIPS 32PF5320 device:
Installed matrix (LCD panel) L0315T3LZ33.
The matrix control uses the Timing Controller (T-CON) CPWBX3298TPZ.
The necessary supply voltages for all nodes of the PHILIPS 32PF5320 TV are generated by the PLCD170P2 power module or its analogs using the DLA001D (PWM = L6598), NCP1207A (PWM), L6562D (PFC) microcircuits.
MainBoard - the main board (motherboard) is a module 3139-123-6093.1, using CPU chips: TDA15021H / N1A1, Scaler: GM1501-LF-BD, DRAM: K4D263238F and others.
The tuner UV1318S / A I H-3 3139 147 19801E provides the reception of television programs and tuning to channels.
