Technical description and composition of the PHILIPS 32PF3320 TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PF3320 / 10
Chassis / Version: LC4.5E AA
Panel: T315XW01 V.F // QD32HL02 REV: 01
Inverter (backlight): CIU11-T0045-L toko 45-54465543
PWM Inverter: OZ9925GN (pl16n)
MOSFET Inverter: 4511GH smd dual.
Power Supply (PSU): PLCD190P1 3122 137 23171
PWM Power: TEA1533AT (SOP14), L6562D (PFC), TEA1601T (SOP16)
MOSFET Power: STP20NM50FP (PFC), STP11NM60FP, STF3NK80Z
MainBoard: 3139_123_60721 // 3139_123_6141
IC MainBoard: gm1501, K4D263238F-UC50, TDA9178T
Tuner: UV1318S / A I H-3
Specifications 32PF3320
PHILIPS 32PF3320
General recommendations for repairing TV LCD
Like all other TVs, it is advisable to start PHILIPS 32PF3320 / 10 with a careful inspection of both external and internal elements and modules. 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. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
Power Module Repair
If PHILIPS 32PF3320 / 10 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 malfunction of the power module PLSD190P1 3122 137 23171. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and filter electrolytic capacitors secondary converter rectifiers. In the event of a fuse breaking, the cause should be sought in the power semiconductor elements of the pulsed flyback converter of the main power supply unit. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch of the converter, which can be installed separately on the radiator, or integrated with a PWM controller.
In most cases, a breakdown of the N-Fet converter key does not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
When using a power factor correction unit (PFC) in the power modules, troubleshooting becomes somewhat more complicated and requires additional experience and knowledge of their operation.
Inverter Repair
If, when you turn on the TV, the image appears and immediately disappears, or is initially absent when turned on, but there are sound and other functions work, there is a high probability of a malfunction of the inverter (power converter for the backlight). In such cases, the lamps, the inverter and the common power module are subject to verification, in which the electrolytic capacitors of the rectifier filter feeding the inverter should be checked.
In most cases, the diagnosis and repair of the CIU11-T0045-L toko 45-54465543 inverter is difficult due to the organization of protection, which turns it off in emergency cases to avoid fires during short circuits or open circuits in high-voltage circuits and during depressurization of lamps. Often, repairmen block the protection circuits in order to make the necessary measurements at the inverter control points to identify the causes of the defect.
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.
Owners of the 32PF3320 / 10 TV are recommended to contact qualified specialists with experience for repairs! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
Service manual and schematic diagram 32PF3320/10 Chassis LC4.5E AA
PSU SCHEMATIC ----------> PLCD190P1 schematic diagram
The appearance of MainBoard 3139_123_60721 is shown in the figure below:3139_123_60721
3139_123_60721 can be used in TVs:
PHILIPS 32PF3320/10 (Panel T315XW01 V.F), PHILIPS 32PF4320/10 (Panel LC320W01).
PSU Advanced
The 32PF3320 / 10 model uses the PLCD190P1 power supply unit using the PFC (Power Factor Correction) node - an active filter of the highest harmonics of the current consumption. In fact, this is a boost converter based on the L6562D PWM controller, which eliminates the charge current of the rectifier filter's electrolytic capacitor directly from the network through open diodes when its charging current is determined by its reactance.
As a result of the operation of the converter, the envelope of the high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The health of the PFC node can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the rectifier network in operating mode.
The appearance of the power supply
Main features of the PHILIPS 32PF3320 device:
Installed matrix (LCD panel) T315XW01 V.F or QD32HL02 REV: 01.
To power the backlight, an inverter CIU11-T0045-L is used, it is controlled by the PWM controller OZ9925GN (pl16n). As power elements of the inverter, keys of the type 4511GH smd dual .. are used.
The necessary supply voltages for all nodes of the PHILIPS 32PF3320 TV are generated by the PLCD190P1 power supply module or its analogs using TEA1533AT (SOP14), L6562D (PFC), TEA1601T (SOP16) microcircuits and power switches of the STP20NM50FP (PFC), STP11NM60KZZF, STP11 type.
MainBoard - the main board (motherboard) is a module 3139_123_60721, using microchips gm1501, K4D263238F-UC50, TDA9178T and others.
The UV1318S / A I H-3 tuner allows you to receive television programs and tune to channels.
Additional technical information about the panel:
Brand: AUO
Model: T315XW01 VF
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: QSV, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 16/5 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V