Technical description and composition of the PHILIPS 32PFL3321S TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL3321S / 60
Chassis / Version: LC4.31E AA
Panel: LC320W01 (SL) (06)
T-CON: 6870C-0060F LC370WX1 LC320WO1
Inverter (backlight): 6632L-0272A KLS-EE32CI-M (P) REV. 03, 6632L-0273A KLS-EE32CI-S (P) REV.03
Power Supply (PSU): PLCD190P1 23171 // 3122 133 32806
PWM Power: L6562D (PFC), TEA1533AT (14), TEA1601T (16)
MOSFET Power: 15N60C3, P4NK60Z, 04N60C3
MainBoard: 3139-123-6117.2 WK542.2
IC MainBoard: gm1501-LF-M4747CF_0710S, TDA15021H / N1C91, M29W400DT
Tuner: UL1318S / AI H-3
Control: IR: 3139 267 24041 (3139 123 6171.1)
Specifications 32PFL3321
PHILIPS 32PFL3321S
General recommendations for repairing TV LCD
It is advisable to start any repair and diagnostics of the PHILIPS 32PFL3321S / 60 TV, as well as other devices, with a careful external examination of the internal and external elements, including case parts, display, buttons and cables. Many visible changes make it possible to determine the future direction of troubleshooting and localization of the defect. 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 the PLCD 190 P1 23171 power supply module fails, the external manifestations may be different, for example, PHILIPS 32PFL3321S / 60 does not turn on at all and there is no indication of the indicator lights on the front panel. 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 N-FET converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Options are 15N60C3, P4NK60Z, 04N60C3.
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 L6562D (8) pl. . TEA1533AT (14) TEA1601T (16), which can only be checked by replacing with a new or obviously working one.
It is somewhat more difficult to find faults in the converter of the power module with an active KKM (power factor corrector).
Inverter Repair
If there is no image when you turn on the PHILIPS 32PFL3321S / 60, or it appears for a second and disappears completely, but there is sound, most likely either the backlight or their power converter (inverter) are faulty. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
Often, attempts to repair the inverter two are complicated 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 - during depressurization of lamps, breaks or short circuits in high-voltage connections and other emergency situations. Lock protection to localize the defect is popular among repairmen.
When diagnosing with the protection off, special precautions must be taken, because there is a risk of failure of the power elements of the inverter. After the diagnosis, it is imperative to restore the protection circuits for the inverter to operate normally.
Attention! For users and owners of 32PFL3321S / 60 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
Service manual and schematic diagram 32PFL3321S/60 Chassis LC4.31E AA
( FOR MODELS 26PF5321/10/12, 32PF5321/10/12, 37PF5321/10/12, 26PF7321/12, 32PF7321/12, 37PF7321/10/12, 42PF5421/10.
PSU SCHEMATIC MANUAL -----------------> PLCD190P1 schematic diagram.
The appearance of MainBoard 3139-123-6117.2 is shown in the figure below:3139-123-6117.2
3139-123-6117.2 can be used in televisions:
PHILIPS 26PF4311S/10 (Panel LC260WX2(SL)(B2)), PHILIPS 26PF5521 (Panel PLCD170P2), PHILIPS 26PF7321/12 (Panel LC260WX2-SL04), PHILIPS 32PF4311S/10 (Panel LC320W01 (sl)(06)), PHILIPS 32PF4311S/10 (Panel LC320W01(SL)(06)), PHILIPS 32PF5331/12 (Panel T315XW01 V9), PHILIPS 32PF7321 (Panel LC320W01), PHILIPS 32PF7331/12 (Panel LC320W01), PHILIPS 32PFL3321S/60 (Panel LC320W01 (SL)(06)), PHILIPS 37PFL3321/10 (Panel LC370WX1-SL04), PHILIPS 32PF3321/12 (Panel CLAA320WB02 (P)), PHILIPS 37PF3321/12 (Panel LC370WX1 (SL)(04)).
PSU Advanced
On the 32PFL3321S / 60 TV, the PLCD190P1 power module is installed using the PFC (Power Factor Correction) circuit acting as an active filter to eliminate the higher harmonic components of the current consumption. The boost 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 reactance (about 15-30 ohms at a frequency of 50 Hz) determines the charge current. 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 32PFL3321S device:
The matrix (LCD panel) LC320W01 (SL) (06) is installed.
The matrix control uses the Timing Controller (T-CON) 6870C-0060F.
An inverter 6632L-0272A is used to power the backlight.
The necessary supply voltages for all nodes of the PHILIPS 32PFL3321S TV are generated by the PLCD190P1 power supply module or its analogs using L6562D (PFC), TEA1533AT (14), TEA1601T (16) microcircuits and power switches of the 15N60C3, P4NK60Z, 04N60C3 type.
MainBoard - the main board (motherboard) is a module 3139-123-6117.2, using microchips gm1501-LF-M4747CF_0710S, TDA15021H / N1C91, M29W400DT and others.
The UL1318S / AI H-3 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320W01-SL06
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 8/10 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V