Technical description and composition of the PHILIPS 37PFL5322S TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 37PFL5322S / 60
Chassis / Version: LC7.1E LA
Panel: LC370WX4-SLB1
Inverter (backlight): LC370WX4 - SLB1
PWM Inverter: OZ9666CN
Power Supply (PSU): PLCD300P3
PWM Power: TEA1601T (16), TEA1533AT (14), L6562D (PFC)
MOSFET Power: 2SK4075, F11NM60N, P4NK60ZFP, P6NK60ZFP
MainBoard: 3139_123_62611
IC MainBoard: CPU: M30300SAGP; DRAM: EDS1216AGTA; NAND Flash: M29W320ET70N; EEPROM: M24C64; SOUND: TDA8932T
Tuner: UV1318S / A
Control: RC2023601 / 01 3139 238 14161
PHILIPS
Model: 37PFL5322S / 60
Chassis / Version: LC7.1E LA
Panel: LC370WX4-SLB1 T704A REV-0.8
Inverter (backlight): LC370WX4-SLB1 PANEL-T704A REV-0.8 6632l-0372D 6632L-0371D
PWM Inverter: OZ9666CN
Power Supply (PSU): PLCD300P3 24573 (3122 423 31942)
PWM Power: TEA1601T (16), TEA1533AT (14), L6562D (PFC)
MOSFET Power: 2SK4075, F11NM60N, P4NK60ZFP, P6NK60ZFP
MainBoard: 3139_123_62611 // 3139 268 53381
IC MainBoard: CPU: M30300SAGP; NAND Flash: M29W320ET70N; EEPROM: M24C64; SOUND: TDA8932T
Tuner: UV1318S / A I H-301 3139 174 198
Control: RC2023601 / 01 3139 238 14161
Specifications 37PFL5322
PHILIPS 37PFL5322S
General recommendations for repairing TV LCD
Repair PHILIPS 37PFL5322S / 60 is recommended to start with the diagnosis of the malfunction, which includes a careful inspection of the external and internal elements of the TV. Often, by the external signs and nature of some damage to the elements, it is possible to draw preliminary conclusions and determine a further algorithm for troubleshooting and localizing the malfunction before making the necessary measurements and taking oscillograms at control points. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
Power Module Repair
Sometimes the PHILIPS 37PFL5322S / 60 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 the failure of the common PLCD300P3 24573 power supply module (3122 43 31942). 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 switch K4075 F11NM60N P4NK60ZFP P6NK60ZFP is detected, which can be integrated with a 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.
It should be remembered that in the practice of repair, usually the power keys of N-Fet converters do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the TEA1601T (16), TEA1533AT (14), L6562D (8) PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuit.
In cases using a power module with an active KKM, troubleshooting is sometimes somewhat more complicated.
Inverter Repair
In cases where the PHILIPS 37PFL5322S / 60 TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of an inverter (converter for powering the backlight) malfunction. When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power.
Repairing the LC370WX4-SLB1 PANEL-T704A REV-0.8 6632l-0372D 6632L-0371D inverter is difficult because in case of any malfunction or emergency, even if the lamps are not worn out uniformly, a protection is triggered that turns it off for fire safety. Diagnostics become impossible and protection needs to be disabled.
In such cases, special care should be taken during diagnostics, and after completion of all repair work it is necessary to restore the circuit and the inverter protection for further safe operation of the TV.
Repair Main Board
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).
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust repair only by a professional with sufficient experience in the repair of electronic equipment.
Service manual and schematic diagram 37PFL5322S/60 Chassis LC7.1E LA
FOR MODELS: 26PFL3312/10, 26PFL3312S/60, 26PFL5322/10, 26PFL5322/12, 26PFL5322S/60, 26PFL7332S/60, 32PFL3312/10, 32PFL3312S/60, 32PFL5322/10, 32PFL5322/12, 37PFL3312/10,37PFL3312S/60, 37PFL5322/10, 37PFL5322/12, 37PFL5322S/60, 42PFL3312/10, 42PFL3312S/60, 42PFL5322/10, 42PFL5322/12, 42PFL5322S/60.
PSU SCHEMATIC -------------------> PLCD300P3
The appearance of MainBoard 3139_123_62611 is shown in the figure below:3139_123_62611
3139_123_62611 can be used in TVs:
PHILIPS 26HF5445/10 (Panel V260B1-L03 code 068 p/n: 932224937682), PHILIPS 26PFL5322S/60 (Panel V260B1-L03 Rev.C3), PHILIPS 26PFL7332S/60 (Panel V260B1-L03 Rev.C3), PHILIPS 32PFL3312S/80 (Panel V315B1-L05 REV.C1), PHILIPS 32PFL5322S/60 (Panel LK315T3LZ93Q), PHILIPS 32PFL5322S/60 (Panel T315XW02 V.D), PHILIPS 32PFL5332S/60 (Panel T315XW02), PHILIPS 37PFL3312/10 (Panel LC370WX1-SLB1), PHILIPS 37PFL3312S/60 (Panel LC370WX4-SLB1), PHILIPS 37PFL3312S/60 (Panel LC370WX5 (SL)(B1)), PHILIPS 37PFL5322S/60 (Panel LC370WX4-SLB1), PHILIPS 37PFL5322S/60 (Panel LC370WX4-SLB1 T704A REV-0.8), PHILIPS 37PFL7662D/12 (Panel T370HW02 V.1), PHILIPS 42PFL3312S/60 (Panel LC420WX8 (SL)(B1)), PHILIPS 42PFL5322S/60 (Panel LC420WX7 SLB1 T703C), PHILIPS 42PFL7662D/12 (Panel LC420WU5 code 093), PHILIPS 42PFL7682D/12 (Panel LC420WU5), PHILIPS 47PFL5522D/12 (Panel LC470WX1-SLA2 code 109 p/n: 932225331682 (LGPH) B ).
PSU Advanced
The 37PFL5322S / 60 TV is equipped with a PLCD300P3 power module using the PFC (Power Factor Correction) scheme acting as an active filter to eliminate the higher harmonic components of the current consumption. The step-up converter based on the L6562D PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes when the charge current determines its reactance (about 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
The appearance of the power supply
Main features of the PHILIPS 37PFL5322S device:
Installed matrix (LCD panel) LC370WX4-SLB1 T704A REV-0.8.
To power the backlight, an LC370WX4-SLB1 inverter is used, it is controlled by the OZ9666CN PWM controller.
The required supply voltages for all nodes of the PHILIPS 37PFL5322S TV are generated by the PLCD300P3 power supply module or its analogs using TEA1601T (16), TEA1533AT (14), L6562D (PFC) microcircuits and power switches of the 2SK4075, F11NM60N, P4NK60ZFP, P6N type.
MainBoard - the main board (motherboard) is a module 3139_123_62611, using CPU chips: M30300SAGP; NAND Flash: M29W320ET70N; EEPROM: M24C64; SOUND: TDA8932T and others.
The tuner UV1318S / A I H-301 3139 174 198 provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC370WX4-SLB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 819.6x460.8 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit)
Response Time: 6/6 (Tr / Td); 6 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
