Technical description and composition of the PHILIPS 32PFL3312S TV, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL3312S / 80
Chassis / Version: LC7.1E LA
Panel: V315B1-L05 REV.C1
Lamp backlight: 16 Lamp CCFL
T-CON: V315B1-C05 12V, AS15-G
Inverter (backlight): VIT70043.50 (I315B1-16D-L001A)
PWM Inverter: OZ964GN
MOSFET Inverter: AOD604
Power Supply (PSU): PLCD190P3 24431
MainBoard: 3139_123_62611
IC MainBoard: SVP CX32 7332 LF, M303009SAQP, TDA8932T
Tuner: UV1318S
Control: REMOTE CONTROL RC2023601 / 01 313923814161
Specifications 32PFL3312S
PHILIPS 32PFL3312S
General recommendations for repairing TV LCD
Repair of the PHILIPS 32PFL3312S / 80 TV is advisable to start with a careful external examination. In this case, both external and internal components of the device should be inspected. In some cases, visible external damage to the elements can suggest directions for troubleshooting and localizing the defect before starting the necessary measurements at the control points of the nodes of electronic circuits. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
Power Module Repair
If the PLCD190P3 24431 power supply module fails, the external manifestations may be different, for example, PHILIPS 32PFL3312S / 80 does not turn on at all and there is no indication of the indicator lights on the front panel. 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 key.
Power switches in flyback converters fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
If the power module uses an active KKM circuit (power factor control), troubleshooting is somewhat more complicated.
Inverter Repair
Sometimes the PHILIPS 32PFL3312S / 80 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 in the power supply unit (power supply unit).
Diagnostics of the inverter can be difficult due to the operation of the protection, which is organized by the designers to prevent negative consequences or fires in emergency cases, for example, during short circuits or breaks in the lamp power supply circuit, as well as their possible depressurization. To make the necessary measurements at control points or to take the necessary waveforms, repairmen have to block the protection circuits in order to be able to diagnose.
It should be remembered that when the protection is turned off, there is always a risk of failure of the power elements of the inverter during diagnosis. After repair, it is necessary to restore all standard converter protection circuits.
Repair Main Board
Repair of the motherboard must begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM. In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its chips SVP CX32 7332 LF, M303009SAQP, TDA8932T, tuner UV1318S and other possible faulty components.
Owners of the 32PFL3312S / 80 TV are recommended for repairs to contact only qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
One of the typical defects of the PHILIPS 32PFL3312S / 80 TV can occur in the V315B1-L05 REV.C1 panel.
External manifestations: color distortion in the image as a negative in the image, light tones predominate. Typically, in such cases, the AS15-G gamma corrector is faulty. Another indicator of its malfunction is an excessively strong heating, which in practice allows you to do without measuring voltage gradations of gray.
In most cases, replacing the AS15-G solves the problem.
It should be remembered that similar symptoms can cause faults in the column drivers of the panel, which is usually indicated by interference in the form of even vertical stripes on the screen. Then, after replacing the AS15-G, the situation does not change. Drivers are in loops and cannot be replaced. In this case, it is necessary to replace the glass panel.
Service manual and schematic diagram 32PFL3312S/80 Chassis LC7.1E LA
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.
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 ).
The appearance of the power supply
Main features of the PHILIPS 32PFL3312S device:
Installed matrix (LCD panel) V315B1-L05 REV.C1.
The matrix control uses the Timing Controller (T-CON) V315B1-C05.
The VIT70043.50 inverter is used to power the backlight, controlled by the OZ964GN PWM controller. As power elements of the inverter, keys of the AOD604 type are used.
The necessary supply voltages for all nodes of the PHILIPS 32PFL3312S TV are generated by the PLCD190P3 power supply module or its analogs.
MainBoard - the main board (motherboard) is a module 3139_123_62611, using microchips SVP CX32 7332 LF, M303009SAQP, TDA8932T and others.
The UV1318S tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: V315B1-L05
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1500: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 18/6 (Tr / Td); 8.5 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V